CN104981048B - Light-emitting diode drive system with carrier signal control - Google Patents

Abstract

The invention discloses a light-emitting diode driving system with carrier signal control, which comprises a rectifier, a first driving circuit, a second driving circuit, a first driving circuit and a second driving circuit, wherein the rectifier rectifies an alternating current power supply to obtain a direct current power supply; the rectifier transmits the direct current power supply to a driving power supply and a carrier signal generating device; the driving power supply and the carrier signal generating device generate a driving power supply; the driving power supply and the carrier signal generating device transmit the driving power supply to more than one light emitting diode driving device through a transmission line so as to drive more than one light emitting diode. The driving power supply and the carrier signal generating device generate a carrier signal; the driving power supply and carrier signal generating device transmits the carrier signal to the light emitting diode driving devices through the transmission line; the light emitting diode driving devices drive the light emitting diodes by the carrier signals.

Description

Light-emitting diode drive system with carrier signal control

technical field

The invention relates to a light emitting diode driving system, in particular to a light emitting diode driving system with carrier signal control.

Background technique

At present, LED light string modules can be roughly divided into two connection methods: serial connection and parallel connection, and these two types of LED light string modules are also widely used by users on building exteriors, trees, signboards and landscaping , to enhance the appearance of such things.

In the known series-type LED light string module, multiple groups of LED light string modules are connected in series, and the number of series-connected LED light string modules is determined according to the volume of the coiled object, and after the series connection The LED lamp groups of all the LED lamp string modules are controlled by the controller of the first LED lamp string module.

Although this kind of series connection method makes it easy to use the LED light string modules in series, but in the process of use, as long as one group of LED light string modules fails, the control signal will not be transmitted, resulting in the failure of the group of light emitting diodes. The rear LED lamp string modules of the LED lamp string modules cannot receive any control signal, so that the rear LED lamp string modules cannot be lighted.

In addition, in the parallel LED light string module, multiple groups of LED light string modules are connected in parallel with the controller, and each LED light string module needs to have a control line and an address line to control. If 10 groups of LED light string modules are connected in parallel, the controller must use 10 control lines and 10 addressing lines to control 10 groups of LED light string modules.

When this kind of parallel connection is in use, when a group of LED light string modules fails, it will not affect the control of other LED light string modules. However, when the number of LED light string modules connected in parallel increases, there are relatively more control lines and addressing lines, resulting in complicated wiring, difficult fabrication, and high cost.

However, regardless of the connection in series or in parallel, a large number of power lines or signal lines are required to achieve the purpose of changing the light emission of the LED light string modules. In today's situation where raw materials are rising day by day, reducing the use of transmission lines can greatly reduce costs.

Contents of the invention

In order to improve the disadvantages of the above-mentioned known technologies, the object of the present invention is to provide a light emitting diode driving system with carrier signal control.

In order to achieve the above object of the present invention, the light-emitting diode driving system with carrier signal control of the present invention is applied to a rectifier and more than one light-emitting diode, and the improved light-emitting diode driving system includes: a driving power supply and a carrier signal generating device, The driving power supply and the carrier signal generating device are electrically connected to the rectifier; a transmission line, the transmission line is electrically connected to the driving power supply and the carrier signal generating device; and more than one LED driving device, these LED driving devices electrically pass through The transmission line is respectively connected with the driving power supply, the carrier signal generating device and the light emitting diodes. Wherein the light emitting diode driving device includes: a positive terminal of a power supply, the positive terminal of the power supply is electrically connected to the driving power supply and the carrier signal generating device; a voltage regulator, the voltage regulator is electrically connected to the positive terminal of the power supply; a power supply a negative terminal, the negative terminal of the power supply is electrically connected to the voltage regulator; a signal detector, the signal detector is electrically connected to the positive terminal of the power supply; an identification control logic circuit, the identification control logic circuit is electrically connected To the voltage regulator, the negative terminal of the power supply and the signal detector; a counting and displacement register circuit, the counting and displacement register circuit is electrically connected to the voltage regulator, the negative terminal of the power supply and the identification control logic circuit; A luminescence change control circuit, the luminescence change control circuit is electrically connected to the voltage regulator, the negative terminal of the power supply and the counting and displacement buffer circuit; a comparison circuit, the comparison circuit is electrically connected to the identification control logic circuit; an address encoder, the address encoder is electrically connected to the comparison circuit; and an address register, the address register is electrically connected to the identification control logic circuit. Wherein the rectifier rectifies an AC power supply to obtain a DC power supply; the rectifier transmits the DC power supply to the drive power supply and carrier signal generating device; the drive power supply and carrier signal generating device generate a drive power supply; the drive power supply and carrier signal generation device The device transmits the driving power to the light emitting diode driving devices through the transmission line to drive the light emitting diodes; wherein the driving power and the carrier signal generating device generate a carrier signal; the driving power and the carrier signal generating device transmit the light emitting diode through the transmission line The carrier signals are sent to the LED driving devices; by means of the carrier signals, the LED driving devices drive the LEDs.

The effect of the present invention is to reduce the use of transmission lines for light-emitting diodes to reduce the cost of light-emitting diode lamps.

Description of drawings

FIG. 1 is a block diagram of an LED driving system with carrier signal control according to the present invention.

FIG. 2 is a block diagram of the first embodiment of the drive power supply and carrier signal generating device of the present invention.

FIG. 3 is a block diagram of the second embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 4 is a block diagram of a third embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 5 is a block diagram of a fourth embodiment of the drive power supply and carrier signal generating device of the present invention.

FIG. 6 is a block diagram of a fifth embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 7 is a block diagram of the sixth embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 8 is a block diagram of the seventh embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 9 is a block diagram of the eighth embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 10 is a block diagram of a ninth embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 11 is a block diagram of the tenth embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 12 is a block diagram of an embodiment in which the LED driving devices of the present invention are used in parallel.

FIG. 13 is a block diagram of an embodiment in which the LED driving devices of the present invention are used in series.

Fig. 14 is a perspective view of the package structure of the present invention.

FIG. 15 is a perspective view of another package structure of the present invention.

FIG. 16 is a waveform diagram of the first embodiment of the carrier signal of the present invention.

FIG. 17 is a waveform diagram of the third embodiment of the carrier signal of the present invention.

FIG. 18 is a block diagram of an eleventh embodiment of the driving power supply and carrier signal generating device of the present invention.

FIG. 19 is a waveform diagram of the second embodiment of the carrier signal of the present invention.

FIG. 20 is a waveform diagram of the fourth embodiment of the carrier signal of the present invention.

Explanation of reference signs

LED drive system with carrier signal control 10

Rectifier 20

AC power supply 22

DC power supply 24

LED 30

AC power supply unit 40

Package Structure 50

First bracket 502

The first platform 504

Second bracket 506

The second platform 508

package body 510

Driving power supply and carrier signal generating device 102

LED driving device 104

transmission line 106

Control integrated circuit 10202

first transistor 10204

Second transistor 10206

The first capacitor 10208

first diode 10210

The second capacitor 10212

First resistor 10214

Second resistor 10216

The third resistor 10218

Zener Diode 10220

The third capacitor 10222

Fourth resistor 10224

Fifth resistor 10226

Sixth resistor 10228

Seventh resistor 10230

Drive power 10232

Carrier signal 10234

Second diode 10236

The third transistor 10238

Positive terminal of power supply 10402

Voltage Regulator 10404

Negative terminal of power supply 10406

Signal Detector 10408

Identification control logic circuit 10410

Luminous change control circuit 10412

Oscillator 10414

Drive current control circuit 10416

Drive current output circuit 10418

Counting and displacement buffer circuit 10420

Comparison circuit 10422

Address encoder 10424

Address Buffer 10426.

detailed description

Please refer to FIG. 1 , which is a block diagram of an LED driving system with carrier signal control according to the present invention. An LED driving system 10 with carrier signal control is applied to a rectifier 20 (in AC environment or DC environment) and more than one LED 30 . The LED driving system 10 with carrier signal control includes a driving power supply and carrier signal generating device 102 , a transmission line 106 and more than one LED driving device 104 . The rectifier 20 and the driving power and carrier signal generating device 102 are integrated into a power supply.

The driving power supply and the carrier signal generating device 102 are electrically connected to the rectifier 20; the transmission line 106 is electrically connected to the driving power supply and the carrier signal generating device 102; The driving power supply and the carrier signal generating device 102 and the light emitting diodes 30 .

The rectifier 20 rectifies an AC power supply 22 (sent from an AC power supply device 40) to obtain a DC power supply 24; the rectifier 20 transmits the DC power supply 24 to the driving power supply and carrier signal generating device 102; the driving power supply and carrier wave The signal generating device 102 generates a driving power 10232 ; the driving power and the carrier signal generating device 102 transmit the driving power 10232 to the LED driving devices 104 through the transmission line 106 to drive the LEDs 30 .

The driving power supply and carrier signal generating device 102 generates a carrier signal 10234; the driving power supply and carrier signal generating device 102 transmits the carrier signal 10234 to the LED driving devices 104 via the transmission line 106; through the carrier signal 10234, The LED driving devices 104 drive the LEDs 30 .

The carrier signal 10234 can be, for example but not limited to, a pulse wave, and the voltage value of the pulse wave can be positive or negative. The transmission line 106 carries the driving power 10232 and the carrier signal 10234 at the same time, thus reducing the use of transmission lines and reducing the cost of the LED lamp.

The LED driving device 104 includes a power supply positive terminal 10402, a voltage regulator 10404, a power supply negative terminal 10406, a signal detector 10408, an identification control logic circuit 10410, a light emission change control circuit 10412, and an oscillator 10414 , a driving current control circuit 10416, more than one driving current output circuit 10418, a counting and displacement buffer circuit 10420, a comparison circuit 10422, an address encoder 10424 and an address register 10426.

The positive terminal 10402 of the power supply is electrically connected to the driving power supply and the carrier signal generating device 102; the voltage regulator 10404 is electrically connected to the positive terminal 10402 of the power supply; the negative terminal 10406 of the power supply is electrically connected to the voltage regulator 10404; The signal detector 10408 is electrically connected to the positive terminal 10402 of the power supply; the identification control logic circuit 10410 is electrically connected to the voltage regulator 10404, the negative terminal 10406 of the power supply and the signal detector 10408; the light emission change control circuit 10412 It is electrically connected to the voltage regulator 10404 , the power supply negative terminal 10406 and the counting and shift register circuit 10420 .

The counting and displacement buffer circuit 10420 is electrically connected to the voltage regulator 10404, the power supply negative terminal 10406 and the identification control logic circuit 10410; the comparison circuit 10422 is electrically connected to the identification control logic circuit 10410; the address encoder 10424 It is electrically connected to the comparison circuit 10422 ; the address register 10426 is electrically connected to the identification control logic circuit 10410 .

The oscillator 10414 is electrically connected to the voltage regulator 10404, the power supply negative terminal 10406, the identification control logic circuit 10410 and the light emission change control circuit 10412; the driving current control circuit 10416 is electrically connected to the voltage regulator 10404, The negative terminal 10406 of the power supply and the light emission change control circuit 10412 ; the driving current output circuits 10418 are electrically connected to the driving current control circuit 10416 and the light emitting diodes 30 .

The signal detector 10408 is used to detect the carrier signal 10234 to notify the identification control logic circuit 10410; then, the identification control logic circuit 10410, the comparison circuit 10422, the address encoder 10424 and the address register 10426 perform some The circuit logic control process and notify the light emission change control circuit 10412 through the counting and displacement buffer circuit 10420; the light emission change control circuit 10412 is used to determine the light emission change of the light emitting diodes 30 and notify the driving current control circuit 10416; finally , the driving current control circuit 10416 controls the driving current output circuit 10418 to drive the LEDs 30 .

Please refer to FIG. 2, which is a block diagram of the first embodiment of the drive power supply and carrier signal generating device of the present invention. The driving power and carrier signal generating device 102 includes a control integrated circuit 10202 , a first transistor 10204 , a second transistor 10206 and a first capacitor 10208 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first transistor 10204 is electrically connected to the rectifier 20, the power supply positive terminal 10402 and the control integrated circuit 10202; the second transistor 10206 is electrically connected to the rectifier 20 , the positive power terminal 10402 and the control integrated circuit 10202 ; the first capacitor 10208 is electrically connected to the first transistor 10204 , the second transistor 10206 and the positive power terminal 10402 .

Please refer to FIG. 3 , which is a block diagram of a second embodiment of the driving power supply and carrier signal generating device of the present invention. The drive power and carrier signal generator 102 includes a control integrated circuit 10202 , a first transistor 10204 , a second transistor 10206 , a first capacitor 10208 , a first diode 10210 and a second capacitor 10212 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first transistor 10204 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the second transistor 10206 is electrically connected to the control integrated circuit 10202 and the first The transistor 10204; the first capacitor 10208 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the first diode 10210 is electrically connected to the rectifier 20, the positive terminal 10402 of the power supply and the control integrated circuit 10202; The second capacitor 10212 is electrically connected to the first diode 10210 and the positive terminal 10402 of the power supply.

Please refer to FIG. 4 , which is a block diagram of a third embodiment of the driving power supply and carrier signal generating device of the present invention. The drive power and carrier signal generating device 102 includes a control integrated circuit 10202 , a first transistor 10204 , a second transistor 10206 , a first capacitor 10208 , a second capacitor 10212 and a first resistor 10214 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first transistor 10204 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the second transistor 10206 is electrically connected to the control integrated circuit 10202 and the first Transistor 10204; the first capacitor 10208 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the second capacitor 10212 is electrically connected to the first transistor 10204 and the positive terminal 10402 of the power supply; the first resistor 10214 is electrically connected It is connected to the first transistor 10204 and the positive terminal 10402 of the power supply.

Please refer to FIG. 5 , which is a block diagram of a fourth embodiment of the driving power supply and carrier signal generating device of the present invention. The drive power and carrier signal generating device 102 includes a control integrated circuit 10202, a first transistor 10204, a second transistor 10206, a first capacitor 10208, a first diode 10210, a second capacitor 10212 and a first A resistor 10214 , a second resistor 10216 and a third resistor 10218 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first transistor 10204 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the first capacitor 10208 is electrically connected to the rectifier 20 and the control integrated circuit 10202 ; The first diode 10210 is electrically connected to the rectifier 20, the power supply positive terminal 10402 and the control integrated circuit 10202; the second capacitor 10212 is electrically connected to the first diode 10210 and the power supply positive terminal 10402 The second transistor 10206 is electrically connected to the second capacitor 10212; the first resistor 10214 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the second resistor 10216 is electrically connected to the control integrated circuit 10202, The first resistor 10214 and the first transistor 10204; the third resistor 10218 are electrically connected to the control integrated circuit 10202 and the second transistor 10206.

Please refer to FIG. 6 , which is a block diagram of a fifth embodiment of the driving power supply and carrier signal generating device of the present invention. The drive power and carrier signal generator 102 includes a control integrated circuit 10202, a first transistor 10204, a first capacitor 10208, a first diode 10210, a second capacitor 10212, a first resistor 10214, a first Two resistors 10216 and a third resistor 10218.

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first transistor 10204 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the first capacitor 10208 is electrically connected to the rectifier 20 and the control integrated circuit 10202 ; The first diode 10210 is electrically connected to the rectifier 20, the power supply positive terminal 10402 and the control integrated circuit 10202; the second capacitor 10212 is electrically connected to the first diode 10210 and the power supply positive terminal 10402 ; the first resistor 10214 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the second resistor 10216 is electrically connected to the control integrated circuit 10202, the first resistor 10214 and the first transistor 10204; the third The resistor 10218 is electrically connected to the second capacitor 10212 .

Please refer to FIG. 7 , which is a block diagram of the sixth embodiment of the driving power supply and carrier signal generating device of the present invention. The drive power and carrier signal generator 102 includes a control integrated circuit 10202, a first transistor 10204, a first capacitor 10208, a first diode 10210, a second capacitor 10212, a first resistor 10214, a first Two resistors 10216 , a third resistor 10218 , a Zener diode 10220 and a third capacitor 10222 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first transistor 10204 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the first capacitor 10208 is electrically connected to the rectifier 20 and the control integrated circuit 10202 ; The first diode 10210 is electrically connected to the rectifier 20, the power supply positive terminal 10402 and the control integrated circuit 10202; the second capacitor 10212 is electrically connected to the first diode 10210 and the power supply positive terminal 10402 ; the first resistor 10214 is electrically connected to the first capacitor 10208 and the control integrated circuit 10202; the second resistor 10216 is electrically connected to the control integrated circuit 10202 and the first transistor 10204; the third resistor 10218 is electrically connected connected to the second capacitor 10212; the Zener diode 10220 is electrically connected to the control integrated circuit 10202, the first capacitor 10208 and the first resistor 10214; the third capacitor 10222 is electrically connected to the rectifier 20 and the control IC 10202.

Please refer to FIG. 8 , which is a block diagram of the seventh embodiment of the driving power supply and carrier signal generating device of the present invention. The drive power and carrier signal generator 102 includes a control integrated circuit 10202, a first transistor 10204, a second transistor 10206, a first capacitor 10208, a second capacitor 10212, a first resistor 10214, a second resistor 10216 , a third resistor 10218 , a zener diode 10220 , a third capacitor 10222 , a fourth resistor 10224 , a fifth resistor 10226 , a sixth resistor 10228 , a seventh resistor 10230 and a third transistor 10238 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first transistor 10204 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the first capacitor 10208 is electrically connected to the rectifier 20 and the control integrated circuit 10202 ; the second capacitor 10212 is electrically connected to the first transistor 10204 and the positive terminal 10402 of the power supply; the first resistor 10214 is electrically connected to the first capacitor 10208 and the control integrated circuit 10202; the second resistor 10216 is electrically connected connected to the control integrated circuit 10202 and the first transistor 10204; the third resistor 10218 is electrically connected to the control integrated circuit 10202; the zener diode 10220 is electrically connected to the control integrated circuit 10202, the first capacitor 10208 and The first resistor 10214; the third capacitor 10222 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the second transistor 10206 is electrically connected to the first transistor 10204; the fourth resistor 10224 is electrically connected to the The second transistor 10206; the fifth resistor 10226 is electrically connected to the fourth resistor 10224; the sixth resistor 10228 is electrically connected to the first transistor 10204 and the positive power terminal 10402; the seventh resistor 10230 is electrically connected to The sixth resistor 10228 ; the third transistor 10238 are electrically connected to the fourth resistor 10224 , the fifth resistor 10226 and the second capacitor 10212 .

Please refer to FIG. 9, which is a block diagram of the eighth embodiment of the drive power supply and carrier signal generating device of the present invention. The drive power and carrier signal generator 102 includes a control integrated circuit 10202, a first transistor 10204, a second transistor 10206, a first capacitor 10208, a second capacitor 10212, a first resistor 10214, a second resistor 10216 , a third resistor 10218 , a zener diode 10220 , a third capacitor 10222 , a fourth resistor 10224 , a fifth resistor 10226 , a sixth resistor 10228 , a seventh resistor 10230 and a third transistor 10238 .

The first resistor 10214 is electrically connected to the rectifier 20; the control integrated circuit 10202 is electrically connected to the first resistor 10214; the first transistor 10204 is electrically connected to the rectifier 20 and the first resistor 10214; the first The capacitor 10208 is electrically connected to the first resistor 10214; the second capacitor 10212 is electrically connected to the first transistor 10204 and the positive power terminal 10402; the second resistor 10216 is electrically connected to the control integrated circuit 10202; Three resistors 10218 are electrically connected to the control integrated circuit 10202; the zener diode 10220 is electrically connected to the first resistor 10214; the third capacitor 10222 is electrically connected to the rectifier 20 and the first resistor 10214; the second The transistor 10206 is electrically connected to the second resistor 10216; the fourth resistor 10224 is electrically connected to the first transistor 10204; the fifth resistor 10226 is electrically connected to the fourth resistor 10224, the first transistor 10204 and the first transistor 10204 Two transistors 10206; the sixth resistor 10228 is electrically connected to the first transistor 10204 and the power supply positive terminal 10402; the seventh resistor 10230 is electrically connected to the sixth resistor 10228; the third transistor 10238 is electrically connected to the The third resistor 10218 and the second capacitor 10212 .

Please refer to FIG. 10 , which is a block diagram of the ninth embodiment of the driving power supply and carrier signal generating device of the present invention. The drive power and carrier signal generator 102 includes a control integrated circuit 10202, a first transistor 10204, a second transistor 10206, a first capacitor 10208, a second capacitor 10212, a first resistor 10214, a second resistor 10216 , a third resistor 10218 , a zener diode 10220 , a third capacitor 10222 , a fourth resistor 10224 , a fifth resistor 10226 , a sixth resistor 10228 , a seventh resistor 10230 and a third transistor 10238 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first resistor 10214 is electrically connected to the control integrated circuit 10202; the first transistor 10204 is electrically connected to the first resistor 10214 and the positive terminal 10402 of the power supply; The first capacitor 10208 is electrically connected to the control integrated circuit 10202; the second capacitor 10212 is electrically connected to the first transistor 10204 and the positive power terminal 10402; the second resistor 10216 is electrically connected to the control integrated circuit 10202; The third resistor 10218 is electrically connected to the first resistor 10214; the Zener diode 10220 is electrically connected to the control integrated circuit 10202 and the first transistor 10204; the third capacitor 10222 is electrically connected to the Zener diode 10220 the second transistor 10206 is electrically connected to the second resistor 10216; the fourth resistor 10224 is electrically connected to the second resistor 10216; the fifth resistor 10226 is electrically connected to the second transistor 10206; the sixth resistor 10228 is electrically connected to the first transistor 10204 and the positive power terminal 10402 ; the seventh resistor 10230 is electrically connected to the sixth resistor 10228 ; the third transistor 10238 is electrically connected to the second capacitor 10212 .

Please refer to FIG. 11 , which is a block diagram of a tenth embodiment of the driving power supply and carrier signal generating device of the present invention. The drive power and carrier signal generator 102 includes a control integrated circuit 10202, a first transistor 10204, a first capacitor 10208, a first diode 10210, a second capacitor 10212, a first resistor 10214, a first Two resistors 10216 , a third resistor 10218 , a Zener diode 10220 , a third capacitor 10222 and a second diode 10236 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first diode 10210 is electrically connected to the control integrated circuit 10202; the first resistor 10214 is electrically connected to the first diode 10210; The transistor 10204 is electrically connected to the first resistor 10214; the first capacitor 10208 is electrically connected to the control integrated circuit 10202; the second capacitor 10212 is electrically connected to the first transistor 10204; the second resistor 10216 is electrically connected to the first transistor 10204; the third resistor 10218 is electrically connected to the second capacitor 10212; the Zener diode 10220 is electrically connected to the control integrated circuit 10202; the third capacitor 10222 is electrically connected to the Zener diode 10220 ; the second diode 10236 is electrically connected to the Zener diode 10220 .

Please refer to FIG. 18 , which is a block diagram of an eleventh embodiment of the driving power supply and carrier signal generating device of the present invention. The driving power supply and carrier signal generating device 102 includes a control integrated circuit 10202, a first transistor 10204, a first capacitor 10208, a first resistor 10214, a second resistor 10216, a third resistor 10218 and a Zener diode 10220 .

The control integrated circuit 10202 is electrically connected to the rectifier 20; the first transistor 10204 is electrically connected to the rectifier 20, the power supply positive terminal 10402 and the control integrated circuit 10202; the first capacitor 10208 is electrically connected to the rectifier 20 and the control integrated circuit 10202; the first resistor 10214 is electrically connected to the control integrated circuit 10202; the second resistor 10216 is electrically connected to the control integrated circuit 10202 and the first transistor 10204; the third resistor 10218 is electrically connected Connected to the rectifier 20, the power supply positive terminal 10402, the control integrated circuit 10202 and the first transistor 10204; the Zener diode 10220 is electrically connected to the control integrated circuit 10202, the first capacitor 10208 and the first resistor 10214 .

Please refer to FIG. 12 , which is a block diagram of an embodiment in which the LED driving devices of the present invention are used in parallel. Please refer to FIG. 13 , which is a block diagram of an embodiment in which the LED driving devices of the present invention are used in series.

Please refer to FIG. 14 , which is a perspective view of the package structure of the present invention. The packaging structure 50 of the present invention includes a LED driving device 104 as described above.

The package structure 50 further includes a first frame 502 , a first platform 504 , a second frame 506 , a second platform 508 , at least one LED 30 and a package 510 .

The first platform 504 is arranged at one end of the first bracket 502; the second bracket 506 is arranged parallel to the first bracket 502; the second platform 508 is arranged at one end of the second bracket 506; the LED driving device 104 disposed on the second platform 508 and electrically connected to the second platform 508; the LED 30 disposed on the first platform 504 and electrically connected to the first platform 504; the LED driving device 104 It is electrically connected to the LED 30 ; the package body 510 covers the first platform 504 , the second platform 508 , the LED driving device 104 and the LED 30 .

Please refer to FIG. 15 , which is a perspective view of another package structure of the present invention, the package structure is a surface mount technology type (SMD). The packaging structure of the present invention is roughly consistent with that of FIG. 14 , and will not be repeated in the same parts. The difference between it and FIG. The diode driving device 104 is electrically connected to the second platform 508 and the second bracket 506 .

Please refer to Fig. 16, which is the waveform diagram of the first embodiment of the carrier signal of the present invention; please refer to Fig. 19, which is the waveform diagram of the second embodiment of the carrier signal of the present invention; when the carrier signal 10234 is generated and transmitted , the carrier signal 10234 shown in FIG. 16 and FIG. 19 includes a single pulse wave.

Please refer to Fig. 17, which is the waveform diagram of the third embodiment of the carrier signal of the present invention; please refer to Fig. 20, which is the waveform diagram of the fourth embodiment of the carrier signal of the present invention; when the carrier signal 10234 is generated and transmitted , the carrier signal 10234 shown in FIG. 17 and FIG. 20 includes complex pulse waves; thereby, the LED driving devices 104 can drive the LEDs 30 synchronously.

The effect of the present invention is to reduce the use of transmission lines for light-emitting diodes to reduce the cost of light-emitting diode lamps.

However, the above description is only a preferred embodiment of the present invention, and should not limit the scope of the present invention, that is, all equivalent changes and modifications made according to the scope of the claims of the present invention should still belong to the scope of patent coverage of the present invention scope of protection.

Claims (12)

1. it is a kind of with carrier signal control LED drive system, it is applied to a rectifier and more than one Optical diode, it is characterised in that the LED drive system is included：

One driving power supply and carrier signal generation device, the driving power supply is electrically connected to the rectification with carrier signal generation device Device；

One transmission line, the transmission line is electrically connected to the driving power supply and carrier signal generation device；And

More than one light emitting diode drive device, these light emitting diode drive devices are electrically connected respectively by the transmission line Connect the drive

Dynamic power supply and carrier signal generation device and these light emitting diodes,

Wherein the light emitting diode drive device is included：

Power positive end point, the power positive end point is electrically connected to the driving power supply and carrier signal generation device；

One voltage adjuster, the voltage adjuster is electrically connected to the power positive end point；

Power supply negative terminal point, the power supply negative terminal point is electrically connected to the voltage adjuster；

One signal detection device, the signal detection device is electrically connected to the power positive end point；

One identification control logic circuit, the identification control logic circuit is electrically connected to the voltage adjuster, the power supply negative terminal point And the signal detection device；

One counts and displacement buffer circuit, and the counting is electrically connected to the voltage adjuster, the power supply and bears with displacement buffer circuit End points and the identification control logic circuit；

One variations in light control circuit, the variations in light control circuit is electrically connected to the voltage adjuster, the power supply negative terminal point And the counting and displacement buffer circuit；

One comparison circuit, the comparison circuit is electrically connected to the identification control logic circuit；

One address scrambler, the address scrambler is electrically connected to the comparison circuit；And

One Address Register, the Address Register is electrically connected to the identification control logic circuit,

Wherein the rectifier to an AC power rectification obtaining a dc source；The rectifier transmits the dc source to the drive Dynamic power supply and carrier signal generation device；The driving power supply produces a driving power supply with carrier signal generation device；The driving electricity The driving power supply is transmitted to these light emitting diode drive devices in source with carrier signal generation device via the transmission line, to drive These light emitting diodes；

Wherein the driving power supply produces a carrier signal with carrier signal generation device；The driving power supply produces dress with carrier signal Put and transmit the carrier signal to these light emitting diode drive devices via the transmission line；By these carrier signals, these Optical diode driving means drive these light emitting diodes.

2. as claimed in claim 1 with the LED drive system of carrier signal control, it is characterised in that this lights Diode driving is further included：

One oscillator, the oscillator be electrically connected to the voltage adjuster, the power supply negative terminal point, the identification control logic circuit and The variations in light control circuit；

One driving current control circuit, the driving current control circuit is electrically connected to the voltage adjuster, the power supply negative terminal point And the variations in light control circuit；And

More than one driving current output circuit, these driving current output circuits are electrically connected to the driving current control electricity Road and these light emitting diodes,

Wherein the carrier signal includes plural pulse wave；These light emitting diode drive devices synchronously drive these light-emitting diodes Pipe.

3. as claimed in claim 2 with the LED drive system of carrier signal control, it is characterised in that the driving Power supply is included with carrier signal generation device：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One the first transistor, the first transistor is electrically connected to the rectifier, the power positive end point and the control integrated circuit；

One transistor seconds, the transistor seconds is electrically connected to the rectifier, the power positive end point and the control integrated circuit； And

One first electric capacity, first electric capacity is electrically connected to the first transistor, the transistor seconds and the power positive end point.

4. as claimed in claim 2 with the LED drive system of carrier signal control, it is characterised in that the driving Power supply is included with carrier signal generation device：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One the first transistor, the first transistor is electrically connected to the rectifier and the control integrated circuit；

One transistor seconds, the transistor seconds is electrically connected to the control integrated circuit and the first transistor；

One first electric capacity, first electric capacity is electrically connected to the rectifier and the control integrated circuit；

One first diode, first diode is electrically connected to the rectifier, the power positive end point and the control integrated circuit； And

One second electric capacity, second electric capacity is electrically connected to first diode and the power positive end point.

5. as claimed in claim 2 with the LED drive system of carrier signal control, it is characterised in that the driving Power supply is included with carrier signal generation device：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One the first transistor, the first transistor is electrically connected to the rectifier and the control integrated circuit；

One transistor seconds, the transistor seconds is electrically connected to the control integrated circuit and the first transistor；

One first electric capacity, first electric capacity is electrically connected to the rectifier and the control integrated circuit；

One second electric capacity, second electric capacity is electrically connected to the first transistor and the power positive end point；And

One first resistor, the first resistor is electrically connected to the first transistor and the power positive end point.

6. as claimed in claim 2 with the LED drive system of carrier signal control, it is characterised in that the driving Power supply is included with carrier signal generation device：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One the first transistor, the first transistor is electrically connected to the rectifier and the control integrated circuit；

One first electric capacity, first electric capacity is electrically connected to the rectifier and the control integrated circuit；

One first diode, first diode is electrically connected to the rectifier, the power positive end point and the control integrated circuit；

One second electric capacity, second electric capacity is electrically connected to first diode and the power positive end point；

One transistor seconds, the transistor seconds is electrically connected to second electric capacity；

One first resistor, the first resistor is electrically connected to the rectifier and the control integrated circuit；

One second resistance, the second resistance is electrically connected to the control integrated circuit, the first resistor and the first transistor；And

One 3rd resistor, the 3rd resistor is electrically connected to the control integrated circuit and the transistor seconds.

7. as claimed in claim 2 with the LED drive system of carrier signal control, it is characterised in that the driving Power supply is included with carrier signal generation device：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One the first transistor, the first transistor is electrically connected to the rectifier and the control integrated circuit；

One first electric capacity, first electric capacity is electrically connected to the rectifier and the control integrated circuit；

One first diode, first diode is electrically connected to the rectifier, the power positive end point and the control integrated circuit；

One second electric capacity, second electric capacity is electrically connected to first diode and the power positive end point；

One first resistor, the first resistor is electrically connected to the rectifier and the control integrated circuit；

One second resistance, the second resistance is electrically connected to the control integrated circuit, the first resistor and the first transistor；And

One 3rd resistor, the 3rd resistor is electrically connected to second electric capacity.

8. as claimed in claim 2 with the LED drive system of carrier signal control, it is characterised in that the driving Power supply is included with carrier signal generation device：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One the first transistor, the first transistor is electrically connected to the rectifier and the control integrated circuit；

One first electric capacity, first electric capacity is electrically connected to the rectifier and the control integrated circuit；

One first diode, first diode is electrically connected to the rectifier, the power positive end point and the control integrated circuit；

One second electric capacity, second electric capacity is electrically connected to first diode and the power positive end point；

One first resistor, the first resistor is electrically connected to first electric capacity and the control integrated circuit；

One second resistance, the second resistance is electrically connected to the control integrated circuit and the first transistor；

One 3rd resistor, the 3rd resistor is electrically connected to second electric capacity；

Zener diode, the Zener diode is electrically connected to the control integrated circuit, first electric capacity and the first resistor； And

One the 3rd electric capacity, the 3rd electric capacity is electrically connected to the rectifier and the control integrated circuit.

9. as claimed in claim 2 with the LED drive system of carrier signal control, it is characterised in that the driving Power supply is included with carrier signal generation device：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One the first transistor, the first transistor is electrically connected to the rectifier and the control integrated circuit；

One first electric capacity, first electric capacity is electrically connected to the rectifier and the control integrated circuit；

One second electric capacity, second electric capacity is electrically connected to the first transistor and the power positive end point；

One first resistor, the first resistor is electrically connected to first electric capacity and the control integrated circuit；

One second resistance, the second resistance is electrically connected to the control integrated circuit and the first transistor；

One 3rd resistor, the 3rd resistor is electrically connected to the control integrated circuit；

Zener diode, the Zener diode is electrically connected to the control integrated circuit, first electric capacity and the first resistor；

One the 3rd electric capacity, the 3rd electric capacity is electrically connected to the rectifier and the control integrated circuit；

One transistor seconds, the transistor seconds is electrically connected to the first transistor；

One the 4th resistance, the 4th resistance is electrically connected to the transistor seconds；

One the 5th resistance, the 5th resistance is electrically connected to the 4th resistance；

One the 6th resistance, the 6th resistance is electrically connected to the first transistor and the power positive end point；

One the 7th resistance, the 7th resistance is electrically connected to the 6th resistance；And

One third transistor, the third transistor is electrically connected to the 4th resistance, the 5th resistance and second electric capacity.

10. as claimed in claim 2 with the LED drive system of carrier signal control, it is characterised in that the drive Dynamic power supply is included with carrier signal generation device：

One first resistor, the first resistor is electrically connected to the rectifier；

One control integrated circuit, the control integrated circuit is electrically connected to the first resistor；

One the first transistor, the first transistor is electrically connected to the rectifier and the first resistor；

One first electric capacity, first electric capacity is electrically connected to the first resistor；

One second electric capacity, second electric capacity is electrically connected to the first transistor and the power positive end point；

One second resistance, the second resistance is electrically connected to the control integrated circuit；

One 3rd resistor, the 3rd resistor is electrically connected to the control integrated circuit；

Zener diode, the Zener diode is electrically connected to the first resistor；

One the 3rd electric capacity, the 3rd electric capacity is electrically connected to the rectifier and the first resistor；

One transistor seconds, the transistor seconds is electrically connected to the second resistance；

One the 4th resistance, the 4th resistance is electrically connected to the first transistor；

One the 5th resistance, the 5th resistance is electrically connected to the 4th resistance, the first transistor and the transistor seconds；

One the 6th resistance, the 6th resistance is electrically connected to the first transistor and the power positive end point；

One the 7th resistance, the 7th resistance is electrically connected to the 6th resistance；And

One third transistor, the third transistor is electrically connected to the 3rd resistor and second electric capacity.

11. LED drive systems with carrier signal control as claimed in claim 2, it is characterised in that the drive Dynamic power supply is included with carrier signal generation device：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One first resistor, the first resistor is electrically connected to the control integrated circuit；

One the first transistor, the first transistor is electrically connected to the first resistor and the power positive end point；

One first electric capacity, first electric capacity is electrically connected to the control integrated circuit；

One second electric capacity, second electric capacity is electrically connected to the first transistor and the power positive end point；

One second resistance, the second resistance is electrically connected to the control integrated circuit；

One 3rd resistor, the 3rd resistor is electrically connected to the first resistor；

Zener diode, the Zener diode is electrically connected to the control integrated circuit and the first transistor；

One the 3rd electric capacity, the 3rd electric capacity is electrically connected to the Zener diode；

One transistor seconds, the transistor seconds is electrically connected to the second resistance；

One the 4th resistance, the 4th resistance is electrically connected to the second resistance；

One the 5th resistance, the 5th resistance is electrically connected to the transistor seconds；

One the 6th resistance, the 6th resistance is electrically connected to the first transistor and the power positive end point；

One the 7th resistance, the 7th resistance is electrically connected to the 6th resistance；

One third transistor, the third transistor is electrically connected to second electric capacity；And

One the 8th resistance, the 8th resistance is electrically connected to the 5th resistance.

12. as claimed in claim 2 with the LED drive system of carrier signal control, wherein the driving power supply with Carrier signal generation device is included：

One control integrated circuit, the control integrated circuit is electrically connected to the rectifier；

One first diode, first diode is electrically connected to the control integrated circuit；

One first resistor, the first resistor is electrically connected to first diode；

One the first transistor, the first transistor is electrically connected to the first resistor；

One first electric capacity, first electric capacity is electrically connected to the control integrated circuit；

One second electric capacity, second electric capacity is electrically connected to the first transistor；

One second resistance, the second resistance is electrically connected to the first transistor；

One 3rd resistor, the 3rd resistor is electrically connected to second electric capacity；

Zener diode, the Zener diode is electrically connected to the control integrated circuit；

One the 3rd electric capacity, the 3rd electric capacity is electrically connected to the Zener diode；And

One second diode, second diode is electrically connected to the Zener diode.