CN107949113B - LED lamp control circuit and LED lamp - Google Patents
LED lamp control circuit and LED lamp Download PDFInfo
- Publication number
- CN107949113B CN107949113B CN201711277271.1A CN201711277271A CN107949113B CN 107949113 B CN107949113 B CN 107949113B CN 201711277271 A CN201711277271 A CN 201711277271A CN 107949113 B CN107949113 B CN 107949113B
- Authority
- CN
- China
- Prior art keywords
- led
- circuit
- control circuit
- driving circuit
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present disclosure relates to an LED lamp control circuit and an LED lamp. The circuit comprises: the output end of the first power supply module is connected with the first end of the LED driving circuit and is used for providing working voltage for the LED driving circuit; the second end of the LED driving circuit is connected with the LED light-emitting device; the output end of the second power supply module is respectively connected with the input end of the delay circuit and the first end of the delay circuit and is used for providing working voltage for the connection of the LED control circuit; the third end of the LED driving circuit is respectively connected with the output end of the delay circuit and the second end of the LED control circuit; and a third end of the LED control circuit is connected with the WIFI module. The delay circuit is used for providing a prohibition signal for prohibiting the LED driving circuit from working to the LED driving circuit before the working voltage provided to the LED control circuit by the second power supply module reaches the preset voltage. The LED light-emitting device can be prevented from flashing through the circuit, and user experience is effectively improved.
Description
Technical Field
The disclosure relates to the technical field of LED illumination, in particular to an LED lamp control circuit and an LED lamp.
Background
Along with the rapid development of economy and science and technology, the living standard is continuously improved, the demands of people on intelligent home life are gradually improved, and the intelligent household life style is convenient, comfortable and well accepted and appreciated by more and more people. The lighting is used as a basic part of the whole home, and the conversion of various light scenes is realized through intelligent control, so that the lighting has become a basic attribute of the lamp.
Disclosure of Invention
To overcome the problems in the related art, embodiments of the present disclosure provide an LED lamp control circuit and an LED lamp. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided an LED lamp control circuit, comprising: the LED power supply comprises a first power supply module, a Light Emitting Diode (LED) driving circuit, a second power supply module, an LED control circuit, a WIFI module and a delay circuit;
the output end of the first power supply module is connected with the first end of the LED driving circuit and is used for providing working voltage for the LED driving circuit;
The second end of the LED driving circuit is connected with the LED light-emitting device;
The output end of the second power supply module is respectively connected with the input end of the delay circuit and the first end of the LED control circuit and is used for providing working voltage for the connection of the LED control circuit;
The third end of the LED driving circuit is respectively connected with the output end of the delay circuit and the second end of the LED control circuit;
The third end of the LED control circuit is connected with the WIFI module;
The delay circuit is used for providing a prohibition signal for prohibiting the LED drive circuit from working to the LED drive circuit before the working voltage provided by the power supply module to the LED control circuit reaches a preset voltage.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: the output end of the first power supply module is connected with the first end of the LED driving circuit and is used for providing working voltage for the LED driving circuit; the second end of the LED driving circuit is connected with the LED light-emitting device; the output end of the second power supply module is respectively connected with the input end of the delay circuit and the first end of the delay circuit and is used for providing working voltage for the connection of the LED control circuit; the third end of the LED driving circuit is respectively connected with the output end of the delay circuit and the second end of the LED control circuit; and a third end of the LED control circuit is connected with the WIFI module. The delay circuit is used for providing a prohibition signal for prohibiting the LED driving circuit from working to the LED driving circuit before the working voltage provided to the LED control circuit by the second power supply module reaches the preset voltage. Because when the output voltage of the second power supply module does not reach the voltage of the normal working of the WIFI module, the delay circuit can provide a prohibition signal for the LED driving circuit, so that the LED driving circuit does not work, the LED light-emitting device can not emit light, the situation that the LED light-emitting device flashes is avoided, and the user experience is effectively improved.
In one embodiment, the delay circuit includes: a switching unit;
the control end of the switch unit is connected with the output end of the second power supply module;
The first end of the switch unit is connected with the third end of the LED driving circuit;
the second end of the switch unit is grounded.
In one embodiment, the switching tube is a triode;
the base electrode of the triode is connected with the output end of the second power supply module;
the collector electrode of the triode is connected with the third end of the LED driving circuit;
And the emitter electrode of the triode is grounded.
In one embodiment, the delay circuit further comprises: a capacitor;
And the base electrode of the triode is connected with the output end of the second power supply module through the capacitor.
In one embodiment, the delay circuit further comprises: a first resistor;
the capacitor is connected with the output end of the second power supply module through the first resistor.
In one embodiment, the delay circuit further comprises: a second resistor;
one end of the second resistor is connected with the base electrode of the triode;
the other end of the second resistor is grounded.
In one embodiment, the LED driving circuit includes: an LED driving chip;
And the enabling end of the LED driving chip is respectively connected with the output end of the delay circuit and the second end of the LED control circuit.
According to a second aspect of embodiments of the present disclosure, there is provided an LED lamp comprising an LED light emitting device and an LED lamp control circuit as in any one of the first aspects.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a circuit diagram illustrating a related art LED lamp according to an exemplary embodiment.
Fig. 2 is a block diagram of an LED lamp control circuit according to an exemplary embodiment.
Fig. 3 is a block diagram of an LED lamp control circuit according to a second exemplary embodiment.
Fig. 4 is a block diagram of an LED lamp control circuit according to a third exemplary embodiment.
Fig. 5 is a block diagram of an LED lamp control circuit according to a fourth exemplary embodiment.
Fig. 6 is a block diagram of an LED lamp control circuit according to a fifth exemplary embodiment.
Fig. 7 is a block diagram of an LED lamp control circuit according to a sixth exemplary embodiment.
Fig. 8 is a block diagram of an LED lamp control circuit according to a seventh exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
Currently, a mainstream manner in realizing the transformation of various light scenes through intelligent control is to control the transformation of the light scenes through wireless fidelity (WIreless-FIdelity, abbreviated as WIFI), and fig. 1 is a circuit diagram of an LED lamp in the related art, as shown in fig. 1, according to an exemplary embodiment, where the circuit includes: the LED display device comprises a first power supply module 11, a light emitting Diode (LIGHT EMITTING Diode, simply referred to as an LED) driving circuit 12, a second power supply module 13, an LED control circuit 14, a WIFI module 15 and an LED light emitting device.
Wherein the LED driving circuit 12 includes: diode D1, LED driving chip U3, resistor R4, resistor R5 and inductor L1; the LED control circuit 14 comprises a triode, a resistor R1, a resistor R2, a resistor R3 and diodes D2-D4; r, G, B and W are IO interfaces of the WIFI module 15 to control signals input by the LED control circuit 14 to the LED driving chip U3; the first power supply module 11 supplies power to a driving chip U3 in the LED driving circuit 12; the second power module 13 supplies power to the WIFI module 15; the first power module 11 supplies 48V voltage; the second power module 13 provides a voltage of 3.3V; the connection relation of each device is shown in fig. 1, and the principle of the circuit is the same as that in the related art, and is not repeated here.
When the power is on, the voltage of the first power module 11 will rise from 0V to 48V, the voltage of the second power module 13 will also rise from 0V to 3.3V, the normal working voltage of the WIFI module 15 is 3.3V, when the output voltage of the second power module 13 is less than 3.3V, the WIFI module 15 cannot normally work, so that the IO interface such as R, G, B, W of the WIFI module 15 has not been output, i.e. is low level, the triode will be turned on, because the triode is turned on, the LED control circuit 14 inputs a high level signal to the third pin (CTRL) of the LED driving chip U3, when the voltage of the first power module 11 rises to the working voltage of the LED light emitting device, the LED light emitting device will be turned on, at this time, which is equivalent to the fact that the first power module 11 suddenly changes from light load to heavy load, so that the output voltage of the first power module 11 will cause the LED light emitting device to drop out because of the voltage. Since the output voltage of the first power module 11 has not reached 48V yet, the output voltage of the first power module 11 will rise again, and in this process, the output voltage of the second power module 13 has reached 3.3V, and the wifi module 15 can operate normally, at this time, the LED light emitting device is turned on again. The phenomenon that the LED lamp flashes first and then lights up when being powered on can occur, so that the user experience is lower.
In order to solve the technical problems, an embodiment of the disclosure provides an LED lamp control circuit. Fig. 2 is a block diagram of an LED lamp control circuit according to an exemplary embodiment, and as shown in fig. 2, the LED lamp control circuit includes:
The LED display device comprises a first power supply module 11, a light emitting Diode (LIGHT EMITTING Diode, which is called as an LED for short), a second power supply module 13, an LED control circuit 14, a wireless fidelity (WIreless-FIdelity, which is called as a WIFI for short) module 15 and a delay circuit 16;
the output end of the first power supply module 11 is connected with the first end of the LED driving circuit 12 and is used for providing working voltage for the LED driving circuit 12; a second terminal of the LED driving circuit 12 is connected to the LED light emitting device.
The first power module 11 is used for providing an operating voltage for the LED driving circuit 12, so that the LED driving circuit 12 operates normally to drive the LED light emitting device to emit light, and therefore, the LED driving circuit 12 needs to be connected to the first power module 11 and the LED light emitting device, respectively.
The output terminal of the second power module 13 is connected to the input terminal of the delay circuit 16 and the first terminal thereof, respectively, for providing an operating voltage to the LED control circuit 14.
A third terminal of the LED driver circuit 12 is connected to an output terminal of the delay circuit 16 and a second terminal of the LED control circuit 14, respectively.
A third terminal of the LED control circuit 14 is connected to the WIFI module 15.
The WIFI module 15 outputs a signal to the LED control circuit 14, and the LED control circuit 14 converts the received signal, so as to output an enable signal to the LED driving circuit 12, so that the LED driving circuit 12 operates normally.
The delay circuit 16 is configured to provide a disable signal to the LED driving circuit 12 to disable operation of the LED driving circuit 12 before the operating voltage provided by the second power module 13 to the LED control circuit 14 reaches a preset voltage.
The delay circuit 16 is used for detecting whether the operating voltage provided by the second power module 13 to the LED control circuit 14 reaches a preset voltage and providing a disable signal to the LED driving circuit 12, and therefore, the delay circuit 16 needs to be connected to the second power module 13 and the LED driving circuit 12, respectively.
In the related art, when the voltage output by the second power module 13 does not reach the normal operating voltage of the WIFI module 15, the WIFI module 15 may input a signal to the LED control circuit 14, so that the LED control circuit 14 provides an enabling signal for the LED driving circuit 12 to operate to the LED driving circuit 12, so that a situation that the LED light emitting device flashes occurs, and in the present disclosure, by adding the delay circuit 16 on the basis of the related art, the delay circuit 16 may provide a prohibiting signal for prohibiting the LED driving circuit 12 from operating when the voltage output by the second power module 13 does not reach the normal operating voltage of the WIFI module 15, so that the LED driving circuit 12 does not control the LED light emitting device to emit light, that is, the situation that the LED light emitting device flashes does not occur; when the voltage output by the second power module 13 reaches the normal working voltage of the WIFI module 15, the delay circuit 16 is disconnected, and the control authority of the LED control circuit 14 to the LED driving circuit 12 is not affected.
Wherein the LED driving circuit 12 includes: an LED driving chip;
The enable terminal of the LED driver chip is connected to the output terminal of the delay circuit 16 and the second terminal of the LED control circuit 14, respectively.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: the output end of the first power supply module is connected with the first end of the LED driving circuit and is used for providing working voltage for the LED driving circuit; the second end of the LED driving circuit is connected with the LED light-emitting device; the output end of the second power supply module is respectively connected with the input end of the delay circuit and the first end of the delay circuit and is used for providing working voltage for the connection of the LED control circuit; the third end of the LED driving circuit is respectively connected with the output end of the delay circuit and the second end of the LED control circuit; and a third end of the LED control circuit is connected with the WIFI module. The delay circuit is used for providing a prohibition signal for prohibiting the LED driving circuit from working to the LED driving circuit before the working voltage provided to the LED control circuit by the second power supply module reaches the preset voltage. Because when the output voltage of the second power supply module does not reach the voltage of the normal working of the WIFI module, the delay circuit can provide a prohibition signal for the LED driving circuit, so that the LED driving circuit does not work, the LED light-emitting device can not emit light, the situation that the LED light-emitting device flashes is avoided, and the user experience is effectively improved.
In one embodiment, as shown in fig. 3, the delay circuit 16 includes: a switch unit 161;
the control end of the switch unit 161 is connected with the output end of the second power module 13;
A first end of the switching unit 161 is connected to a third end of the LED driving circuit 12;
the second terminal of the switching unit 161 is grounded.
The third terminal of the LED driving circuit 12 is an enable terminal of the LED driving chip.
The switch unit 161 is configured to detect whether the operating voltage provided by the second power module 13 to the LED control circuit 14 reaches a preset voltage, and when detecting that the operating voltage provided by the second power module 13 to the LED control circuit 14 does not reach the preset voltage, the switch unit 161 is closed to provide a disable signal to the LED driving circuit 12; when it is detected that the operating voltage supplied from the second power supply module 13 to the LED control circuit 14 reaches the preset voltage, the switching unit 161 is turned off, that is, the switching unit 161 is not active, so as to avoid affecting the control of the LED control circuit 14 on the LED driving circuit 12.
Since the switching unit 161 is turned on and off based on the second power module 13, the control terminal of the switching unit 161 is connected to the output terminal of the second power module 13, and the switching unit 161 is used to control the input signal of the LED driving circuit 12, so that the first terminal of the switching unit 161 is connected to the third terminal of the LED driving circuit 12, and the second terminal of the switching unit 161 is grounded.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: the switching unit is closed and opened to convert the input signals of the LED driving circuit, so that the condition that the LED light-emitting device flashes is avoided, and the user experience is effectively improved.
For example, the switching transistor may be a transistor or a field effect transistor, and when the switching unit 161 is a transistor:
The base of the triode is connected with the output end of the second power supply module 13.
The collector of the transistor is connected to a third terminal of the LED driver circuit 12.
The emitter of the triode is grounded.
In one embodiment, as shown in fig. 4, the delay circuit 16 further includes: a capacitor 162;
The base of the triode is connected with the output end of the second power supply module 13 through a capacitor.
Because the capacitor 162 is equivalent to a wire (short circuit) in the circuit in the charging process, and is equivalent to an infinite resistor (open circuit) in the circuit after full charge, the accuracy of closing and opening the triode can be effectively improved by matching the capacitor with the switch unit 161.
When the output voltage of the second power module 13 rises, the capacitor 162 connected with the second power module is charged, the capacitor 162 is equivalent to a wire, at this time, the delay circuit 16 is turned on to provide voltage for the base electrode of the triode, and the triode is turned on, and the emitter electrode of the triode is grounded, so that a disable signal is provided for the LED driving circuit 12; when the capacitor 162 is fully charged, the capacitor 162 corresponds to an infinite resistor, no voltage is provided to the base of the transistor, the transistor is turned off, and the transistor no longer provides a disable signal to the LED driver circuit 12.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: the accuracy of the closing and opening of the triode can be effectively improved through the matching of the capacitor 162 and the triode
In one embodiment, as shown in fig. 5, the delay circuit 16 further includes: a first resistor 163;
the capacitor 162 is connected to the output terminal of the second power module 13 through the first resistor 163.
In the process of increasing the voltage of the second power module 13, the voltage provided by the second power module 13 is larger than the rated voltage of the capacitor 162, so that the capacitor 162 is broken down, and therefore, in order to avoid the situation that the capacitor 162 is damaged due to being struck, a first resistor 163 is connected in series with the capacitor 162 so as to divide the output voltage of the second power module 13, and the capacitor 162 is effectively protected.
In one embodiment, as shown in fig. 6, the delay circuit 16 further includes: a second resistor 164;
One end of the second resistor 164 is connected to the control end of the switching unit 161;
the other end of the second resistor 164 is grounded.
At this time, the first resistor 163 and the second resistor 164 constitute a voltage dividing circuit.
It is noted that the delay circuit 16 may be implemented by an integrated circuit (INTEGRATED CIRCUIT, abbreviated as IC).
The disclosed embodiments also provide an LED lamp including an LED light emitting device, and the LED lamp control circuit 14 described in any of the above embodiments.
The LED light emitting device can be an independent LED or an LED light string.
Fig. 7 is a block diagram of an LED lamp control circuit according to a sixth exemplary embodiment, and as shown in fig. 7, the LED lamp control circuit includes:
The device comprises a first power supply module 11, a light emitting Diode (LIGHT EMITTING Diode, simply referred to as an LED) driving circuit 12, a second power supply module 13, an LED control circuit 14, a WIFI module 15 and a delay circuit 16.
Wherein the LED driving circuit 12 includes: diode D1, LED driving chip U3, resistor R4 and resistor R5; the LED control circuit 14 comprises a triode, a resistor R1, a resistor R2, a resistor R3 and diodes D2-D4; r, G, B and W are IO interfaces of the WIFI module 15 to control signals input by the LED control circuit 14 to the LED driving chip U3; the power supply module 11 supplies power to a driving chip U3 in the LED driving circuit 12; the power module 13 supplies power to the WIFI module 15; the power module 11 provides 48V voltage; the power module 13 provides a voltage of 3.3V; the connection relationships between the first power module 11, the light emitting Diode (LIGHT EMITTING Diode, abbreviated as "LED") driving circuit 12, the second power module 13, the LED control circuit 14, and the wireless fidelity (WIreless-FIdelity, abbreviated as "WIFI") module 15 are similar to those of fig. 1, and are not repeated here.
The delay module 16 includes: the LED power supply comprises a triode 161, a capacitor 162, a first resistor 163 and a second resistor 164, wherein one end of the first resistor 163 is connected with the second power supply module 13, the other end of the first resistor 163 is connected with one end of the capacitor 162, the other end of the capacitor 162 is respectively connected with the base electrode of the triode 161 and one end of the second resistor 164, the collector electrode of the triode 161 is connected with a third pin (enabling end: CTRL) of the LED control chip U3, the emitter electrode of the triode 161 is grounded, and the other end of the second resistor 164 is grounded.
When the power is on, the voltage of the power module 11 will rise from 0V to 48V, the voltage of the power module 13 will also rise from 0V to 3.3V, the normal working voltage of the WIFI module 15 is 3.3V, when the output voltage of the power module 13 is less than 3.3V, the WIFI module 15 cannot normally work, so that the IO ports such as R, G, B, W of the WIFI module 15 are not output yet, i.e. are all low level, the triode Q will be turned on, because the triode is turned on, the LED control circuit 14 inputs a high level signal to the third pin (CTRL) of the LED driving chip U3, and because of the existence of the delay circuit 16, the capacitor 162 will be charged in the process that the voltage of the power module 13 also rises from 0V to 3.3V, and current flows from the second resistor 164, when the voltage U be between the base and the emitter of the triode 161 is greater than 0.7V, the voltage of the third pin (enable pin) of the U3 is full of 0V, and the triode 161 is kept full of the capacitor 162 until the third pin is turned off, and the LED is not turned on until the third pin of the LED driving chip U3 is turned off, and the light-emitting device is turned off in the low-level 12; the voltage of the first power module 11 will not suddenly drop due to the LED lighting device being turned on in the process of starting to rise from 0V to 3.3V in the related art, but will continuously rise to 48V, and the voltage of the second power module 13 will also have risen to 3.3V in the process of fully charging the capacitor, so that the IO interface (R, G, B and W) state of the WIFI module 15 has also been stabilized, so that the LED lighting device will not flash after being turned on at this time, but will continuously be turned on.
The time required for charging the capacitor 162 is as long as possible to be equal to the time required for the voltage of the second power module 13 to rise from 0V to 3.3V, or the time required for charging the capacitor 162 is as long as possible to be equal to the time required for the voltage of the first power module 11 to rise from 0V to 48V.
Fig. 8 is a block diagram of an LED lamp control circuit according to a seventh exemplary embodiment, and as shown in fig. 8, the LED lamp control circuit also includes:
The device comprises a first power supply module 11, a light emitting Diode (LIGHT EMITTING Diode, for short, an LED) driving circuit 12, a second power supply module 13, an LED control circuit 14, a wireless fidelity (WIreless-FIdelity, for short, a WIFI) module 15 and a delay circuit 16.
The LED driving circuit 12 further includes, based on fig. 7, the following: a capacitor C1, a capacitor C2, a capacitor C3, and a resistor R7; the LED control circuit 14 further includes a resistor R6 on the basis of fig. 7, the connection relationship between the devices included in each module and each device is similar to that in fig. 1 and related art, and the implementation principle of the circuit is similar to that in related art, which is not repeated here.
The function of the delay circuit 16 in this circuit is the same as in the previous embodiment and will not be described here again.
By way of example, the power module 11 provides a 36V voltage; the power module 13 provides a voltage of 3.3V; then in this circuit the time required for the charge of the capacitor 162 to fill is as much as possible equal to the time required for the voltage of the second power supply module 13 to rise from 0V to 3.3V, or the time required for the charge of the capacitor 162 to fill is as much as possible equal to the time required for the voltage of the first power supply module 11 to rise from 0V to 36V.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (4)
1. An LED lamp control circuit, comprising: the LED power supply comprises a first power supply module, a Light Emitting Diode (LED) driving circuit, a second power supply module, an LED control circuit, a WIFI module and a delay circuit, wherein the delay circuit comprises a switch unit, the switch unit is a triode, and an emitter of the triode is grounded;
the output end of the first power supply module is connected with the first end of the LED driving circuit and is used for providing working voltage for the LED driving circuit;
The second end of the LED driving circuit is connected with the LED light-emitting device;
The output end of the second power supply module is respectively connected with the base electrode of the triode and the first end of the LED control circuit and is used for providing working voltage for the LED control circuit in a connecting way;
The third end of the LED driving circuit is respectively connected with the collector electrode of the triode and the second end of the LED control circuit;
The third end of the LED control circuit is connected with the WIFI module;
The delay circuit is used for providing a prohibition signal for prohibiting the LED driving circuit from working to the LED driving circuit before the working voltage provided by the first power supply module to the LED control circuit reaches a preset voltage;
the delay circuit further comprises a capacitor, a first resistor and a second resistor, wherein the output end of the second power supply module is connected with one end of the capacitor through the first resistor, and the other end of the capacitor is respectively connected with the base electrode of the triode and the second resistor.
2. The LED lamp control circuit of claim 1, wherein the LED driving circuit comprises: an LED driving chip;
And the enabling end of the LED driving chip is respectively connected with the output end of the delay circuit and the second end of the LED control circuit.
3. The LED lamp control circuit of claim 2, wherein one end of the second resistor is further connected to the base of the triode;
the other end of the second resistor is grounded.
4. An LED lamp comprising an LED light emitting device and an LED lamp control circuit as claimed in any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711277271.1A CN107949113B (en) | 2017-12-06 | 2017-12-06 | LED lamp control circuit and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711277271.1A CN107949113B (en) | 2017-12-06 | 2017-12-06 | LED lamp control circuit and LED lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107949113A CN107949113A (en) | 2018-04-20 |
| CN107949113B true CN107949113B (en) | 2024-07-12 |
Family
ID=61945934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711277271.1A Active CN107949113B (en) | 2017-12-06 | 2017-12-06 | LED lamp control circuit and LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107949113B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108668414B (en) * | 2018-06-27 | 2023-11-10 | 浙江阳光美加照明有限公司 | Dual-purpose LED grass of commercial power and low voltage direct current is inserted lamp |
| CN111712013B (en) * | 2020-07-10 | 2023-11-07 | 陕西华晟智科电气有限公司 | Protection device for lighting assembly, lighting assembly and protection method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204290702U (en) * | 2014-12-11 | 2015-04-22 | 深圳市共进电子股份有限公司 | A kind of start-up circuit of sequence power-on |
| CN204887530U (en) * | 2015-05-12 | 2015-12-16 | 广东凯乐斯光电科技有限公司 | Multiplexed output LED long -distance intelligent control power of adjusting luminance |
| CN207491270U (en) * | 2017-12-06 | 2018-06-12 | 北京小米移动软件有限公司 | LED light control circuit and LED light |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006046207A1 (en) * | 2004-10-27 | 2006-05-04 | Koninklijke Philips Electronics, N.V. | Startup flicker suppression in a dimmable led power supply |
| CN2829280Y (en) * | 2005-11-04 | 2006-10-18 | 乐清市亿昊科技发展有限公司 | Circuit device of miner's lamp |
| CN101711071B (en) * | 2009-11-25 | 2013-10-23 | 海洋王照明科技股份有限公司 | LED control circuit and LED device |
| CN101882864B (en) * | 2010-06-25 | 2012-08-22 | 矽力杰半导体技术(杭州)有限公司 | Electrifying startup circuit and electrifying startup method thereof |
| CN202145692U (en) * | 2011-07-28 | 2012-02-15 | 林万炯 | LED flicker filter circuit |
| CN102281683B (en) * | 2011-07-28 | 2014-03-12 | 林万炯 | LED anti-flash circuit |
| CN202455617U (en) * | 2012-01-30 | 2012-09-26 | 深圳市振邦实业有限公司 | Light-emitting diode (LED) lighting time delay circuit and LED lighting device |
| CN103841696B (en) * | 2012-11-22 | 2016-03-30 | 欧普照明股份有限公司 | A kind of LED driving governor, lighting device and illuminator |
| CN203968434U (en) * | 2014-02-12 | 2014-11-26 | 广州市永科光电科技有限公司 | A kind of LED drive circuit with time delay |
| CN103956889A (en) * | 2014-04-30 | 2014-07-30 | 瑞斯康达科技发展股份有限公司 | Enable signal control circuit and power circuit |
| CN204392640U (en) * | 2015-01-12 | 2015-06-10 | 英飞特电子（杭州）股份有限公司 | A kind of delay startup circuit |
| CN205017630U (en) * | 2015-06-25 | 2016-02-03 | 英飞特电子（杭州）股份有限公司 | LED drive power supply adjusts luminance and turn -offs control circuit |
| CN205093002U (en) * | 2015-09-27 | 2016-03-16 | 电子科技大学中山学院 | LED drive circuit |
| CN205179453U (en) * | 2015-11-09 | 2016-04-20 | 叶晏辰 | Bluetooth LED light of area theftproof function |
| CN205378259U (en) * | 2015-12-15 | 2016-07-06 | 深圳Tcl数字技术有限公司 | Drive circuit , backlight unit and LED TV are shaded |
| CN205378270U (en) * | 2016-01-04 | 2016-07-06 | 深圳市美斯特光电技术有限公司 | LED drive load circuit of compatible silicon controlled rectifier ware |
| CN206077748U (en) * | 2016-08-22 | 2017-04-05 | 上海晶丰明源半导体股份有限公司 | Adjusting control circuit and controllable silicon light modulation LED drive power |
-
2017
- 2017-12-06 CN CN201711277271.1A patent/CN107949113B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204290702U (en) * | 2014-12-11 | 2015-04-22 | 深圳市共进电子股份有限公司 | A kind of start-up circuit of sequence power-on |
| CN204887530U (en) * | 2015-05-12 | 2015-12-16 | 广东凯乐斯光电科技有限公司 | Multiplexed output LED long -distance intelligent control power of adjusting luminance |
| CN207491270U (en) * | 2017-12-06 | 2018-06-12 | 北京小米移动软件有限公司 | LED light control circuit and LED light |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107949113A (en) | 2018-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7675240B2 (en) | Light emitting diode circuit having even current | |
| CN108575009A (en) | Multiplexing driving circuit and driving method for daily running, position and turn signals for vehicles | |
| CN103561527B (en) | A kind of dual-function LED drive circuit | |
| WO2020181717A1 (en) | Vehicle lamp control circuit and vehicle | |
| US11602021B2 (en) | Linear drive circuit and led light having the same | |
| CN103929854A (en) | LED drive device and LED dimming controller thereof | |
| CN107949113B (en) | LED lamp control circuit and LED lamp | |
| CN108430135A (en) | A kind of sequential starting controlling circuit, lighting device and lighting system | |
| US8115396B2 (en) | Light emitting diode lamp protecting circuit | |
| US10143061B2 (en) | Constant current power supply with a plurality of current outputs for LED lamps | |
| CN103369772B (en) | A kind of signal lights and control circuit thereof | |
| CN208353214U (en) | Control loop soft start circuit | |
| KR101518554B1 (en) | Power supplies to drive the multiple LED modules and the lighting apparatus including the same | |
| CN202455617U (en) | Light-emitting diode (LED) lighting time delay circuit and LED lighting device | |
| CN203775494U (en) | An LED driving device and an LED dimming driving controller thereof | |
| CN207491270U (en) | LED light control circuit and LED light | |
| CN109996375A (en) | Turn signal limping driving circuit | |
| CN109302777B (en) | LED dimming device and dimming system | |
| CN209845375U (en) | Output current control circuit for LED driver | |
| CN203912292U (en) | Sectional type light modulation circuit and light modulation illumination device | |
| CN104159359A (en) | Electric torch drive circuit and mobile terminal | |
| CN212910120U (en) | LED power supply dimming circuit | |
| CN113411931B (en) | LED silicon controlled rectifier dimming quick response circuit and LED lighting device | |
| CN212628491U (en) | Light-operated switch of solar lamp | |
| CN209845383U (en) | Photosensitive LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100085 Huarun Qingcai Street 68, Haidian District, Beijing, two stage, 9 floor, 01 rooms. Applicant after: BEIJING XIAOMI MOBILE SOFTWARE Co.,Ltd. Applicant after: Qingdao Yilai Intelligent Technology Co.,Ltd. Address before: 100085 Huarun Qingcai Street 68, Haidian District, Beijing, two stage, 9 floor, 01 rooms. Applicant before: BEIJING XIAOMI MOBILE SOFTWARE Co.,Ltd. Applicant before: QINGDAO YEELINK INFORMATION TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |