CN201590933U

CN201590933U - An anti-interference constant voltage and constant current circuit device for LED energy-saving lamps

Info

Publication number: CN201590933U
Application number: CN2010203008144U
Authority: CN
Inventors: 宋浩; 樊仲清; 郑华丽; 赵佳俊; 陈钧
Original assignee: 赵佳俊
Priority date: 2010-01-15
Filing date: 2010-01-15
Publication date: 2010-09-22
Anticipated expiration: 2020-01-15

Abstract

The utility model relates to an anti-interference constant-voltage constant-current circuit device for LED energy-saving lamps, which is applied in the field of LED energy-saving lamps. The anti-interference constant voltage and constant current circuit device for LED energy-saving lamps includes a power supply circuit and a load light-emitting diode circuit. The power supply circuit is provided with a light-emitting diode open-circuit damage protection circuit. The power supply circuit and the load light-emitting diode circuit There is a three-terminal electronic voltage regulator device between them. The utility model has the advantages that the operating current of the LED energy-saving lamp is basically stable, the luminous brightness of the LED lamp is guaranteed, the service life of the LED is improved, and the light decay is reduced.

Description

A kind of anti-interference constant pressure and flow circuit arrangement that is used for the LED energy-saving lamp

Technical field

The utility model relates to a kind of anti-interference constant pressure and flow circuit arrangement of the LED of being used for energy-saving lamp, is applied in the LED energy-saving lamp field.

Background technology

Growing along with science and technology, adopt the LED energy-saving lamp of super bright light-emitting diode,, economize on electricity efficient with it, longevity, environmental protection, unlatching are rapid, are not afraid of the vibrations isopreference, are widely used in fields such as normal lighting, agricultural, biological illumination, traffic signals, decoration.Referring to Fig. 1, Fig. 1 is the circuit diagram of this LED energy-saving lamp, and sort circuit is according to the power demand size, can be single-circuit also can be multiloop parallel connection.Wherein N1-Nn is a light-emitting diode, and W1-Wn is a voltage stabilizing didoe.Thisly directly dock with electric main AC, damage the LED energy-saving lamp of protection with luminous light-emitting diode open-circuit, in the AC220V circuit, single channel light-emitting diode number, white, green, blueness reach about 88, and red yellow reaches about 140.Because the intermediate link of directly docking with electric main, can not power consumption, with the incandescent lamp of same brightness relatively, power saving capability reaches more than 92%.And because Switching Power Supply that need not be traditional, thereby make the passback electromagnetic interference be reduced to minimum level.

But this LED energy-saving lamp also has a weak point, and promptly the same with incandescent lamp, his luminosity also can fluctuate along with the fluctuation of line voltage, and when promptly the ac commercial power voltage was low, the LED energy-saving lamp seemed dim, and voltage can be brighter when high.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of reasonable in design, and the operating current of LED energy-saving lamp is basicly stable, ensures the luminosity of LED lamp, improves the LED life-span, reduces the anti-interference constant pressure and flow circuit arrangement that is used for the LED energy-saving lamp of light decay

It is this anti-interference constant pressure and flow circuit arrangement that is used for the LED energy-saving lamp that the utility model solves the problems of the technologies described above the technical scheme that is adopted; comprise power circuit and load circuit of LED; be provided with light-emitting diode open-circuit in the described power circuit and damage protective circuit, be characterized in: be provided with three end electronic regulation apparatuses between described power circuit and the load circuit of LED.

Three end electronic regulation apparatuses described in the utility model are made up of three terminal regulator, a resistance, No. two resistance, No. three resistance and No. four resistance, the input of three terminal regulator links to each other with power circuit, the output of three terminal regulator links to each other with a resistance, No. three resistance respectively, a resistance and No. three resistance are in parallel, No. three resistance is in series with No. two resistance and No. four resistance respectively, No. four resistance links to each other with the load circuit of LED, and No. two resistance links to each other with the earth terminal of three terminal regulator respectively with a resistance.

Three end electronic regulation apparatuses described in the utility model are by No. five resistance, No. six resistance, No. seven resistance, No. eight resistance, a triode, No. two triodes, No. three triodes, two utmost point voltage-stabiliser tubes are formed, one end of No. five resistance respectively with the positive pole of power circuit, the collector electrode of a triode links to each other, the other end of No. five resistance respectively with the collector electrode of No. two triodes, No. six resistance, the base stage of a triode links to each other, the other end of No. six resistance respectively with the collector electrode of No. three triodes, No. seven resistance, the base stage of No. two triodes links to each other, the other end of No. seven resistance respectively with the base stage of No. three triodes, one end of two utmost point voltage-stabiliser tubes links to each other, the emitter of a triode, the emitter of No. two triodes, the emitter of No. three triodes links to each other with an end of No. eight resistance respectively, and the other end of No. eight resistance links to each other with the load circuit of LED.The other end of two utmost point voltage-stabiliser tubes links to each other with the negative pole of power circuit.

Three end electronic regulation apparatuses described in the utility model are by No. nine resistance, No. ten resistance, ride on Bus No. 11 resistance, ten No. two resistance, a digital-to-analogue pipe, No. two digital-to-analogue pipes, No. three digital-to-analogue pipes, two utmost point voltage-stabiliser tubes are formed, No. nine resistance, No. ten resistance, ride on Bus No. 11 resistance is connected successively, No. nine resistance, No. ten resistance, ride on Bus No. 11 resistance respectively with a digital-to-analogue pipe, No. two digital-to-analogue pipes, No. three the digital-to-analogue pipe is in parallel, again respectively with ten No. two resistance, the series connection of two utmost point voltage-stabiliser tubes, ten No. two resistance links to each other with the load circuit of LED, one end of No. nine resistance links to each other with the positive pole of power circuit, and two utmost point voltage-stabiliser tubes link to each other with the negative pole of power circuit.

The utility model is compared with prior art and is had the following advantages and effect: 1, impracticable novel be to utilize electronic circuit can directly be connected in the alternating current circuit, solved a world-technology difficult problem, solved again and utilized resistance-capacitance depressurization not a constant pressure and flow and the difficult problem that big electric current can't be provided with electromagnetism Interference in the insurmountable circuit of Switching Power Supply.2, the present invention can directly solve provides the required D.C. high-current of LED and can provide constant pressure and flow to make LED lamp long-term stable operation under rational condition as required.3, the present invention can satisfy the voltage and current requirement that after the AC rectification LED is needed the needs of all kinds of power modulations, and can protect the led light source reliability, improves the LED life-span, reduces light decay.4, this circuit is simple and practical, low cost.

Description of drawings

Fig. 1 is the prior art constructions schematic diagram;

Fig. 2 is the structural representation of embodiment 1;

Fig. 3 is the structural representation of embodiment 2;

Fig. 4 is the structural representation of embodiment 3.

Embodiment

Below in conjunction with embodiment the utility model is described in further detail, following examples are to explanation of the present utility model and the utility model is not limited to following examples.

Embodiment 1: as shown in Figure 2, present embodiment has been described a kind of anti-interference constant pressure and flow circuit arrangement of the LED of being used for energy-saving lamp, form by power circuit 4, three end electronic regulation apparatuses, load circuit of LED 5, be provided with light-emitting diode open-circuit in the power circuit 4 and damage protective circuit, three end electronic regulation apparatuses are arranged between power circuit 4 and the load circuit of LED 5; Three end electronic regulation apparatuses are by three terminal regulator 6, a resistance 111, No. two resistance 112, No. three resistance 113 and No. four resistance 114 are formed, the input of three terminal regulator 6 links to each other with power circuit 4, the output of three terminal regulator 6 respectively with a resistance 111, No. three resistance links to each other 113, a resistance 111 and No. three resistance 113 are in parallel, No. three resistance 113 is in series with No. two resistance 112 and No. four resistance 114 respectively, No. four resistance 114 links to each other with load circuit of LED 5, and No. two resistance 112 links to each other with the earth terminal of three terminal regulator 6 respectively with a resistance 111.

Each light-emitting diode in load circuit of LED 5 all is parallel with two utmost point voltage-stabiliser tubes.

Embodiment 2: as shown in Figure 3, present embodiment has been described a kind of anti-interference constant pressure and flow circuit arrangement of the LED of being used for energy-saving lamp, form by power circuit 4, three end electronic regulation apparatuses, load circuit of LED 5, be provided with light-emitting diode open-circuit in the power circuit 4 and damage protective circuit, three end electronic regulation apparatuses are arranged between power circuit 4 and the load circuit of LED 5; Three end electronic regulation apparatuses are by No. five resistance 121, No. six resistance 122, No. seven resistance 123, No. eight resistance 124, a triode 21, No. two triodes 22, No. three triodes 23, two utmost point voltage-stabiliser tubes 7 are formed, one end of No. five resistance 121 respectively with the positive pole of power circuit 4, the collector electrode of a triode 21 links to each other, the other end of No. five resistance 121 respectively with the collector electrode of No. two triodes 22, No. six resistance 122, the base stage of a triode 21 links to each other, the other end of No. six resistance 122 respectively with the collector electrode of No. three triodes 23, No. seven resistance 123, the base stage of No. two triodes 22 links to each other, the other end of No. seven resistance 123 respectively with the base stage of No. three triodes 23, one end of two utmost point voltage-stabiliser tubes 7 links to each other, the emitter of a triode 21, the emitter of No. two triodes 22, the emitter of No. three triodes 23 links to each other with an end of No. eight resistance 124 respectively, and the other end of No. eight resistance 124 links to each other with load circuit of LED 5.The other end of two utmost point voltage-stabiliser tubes 7 links to each other with the negative pole of power circuit 4.

Embodiment 3: as shown in Figure 4, present embodiment has been described a kind of anti-interference constant pressure and flow circuit arrangement of the LED of being used for energy-saving lamp, form by power circuit 4, three end electronic regulation apparatuses, load circuit of LED 5, be provided with light-emitting diode open-circuit in the power circuit 4 and damage protective circuit, three end electronic regulation apparatuses are arranged between power circuit 4 and the load circuit of LED 5; Three end electronic regulation apparatuses are by No. nine resistance 131, No. ten resistance 132, ride on Bus No. 11 resistance 133, ten No. two resistance 134, a digital-to-analogue pipe 31, No. two digital-to-analogue pipes 32, No. three digital-to-analogue pipes 33, two utmost point voltage-stabiliser tubes form 7, No. nine resistance 131, No. ten resistance 132, ride on Bus No. 11 resistance 133 is connected successively, No. nine resistance 131, No. ten resistance 132, ride on Bus No. 11 resistance 133 respectively with a digital-to-analogue pipe 31, No. two digital-to-analogue pipes 32, No. three digital-to-analogue pipe 33 is in parallel, again respectively with ten No. two resistance 134,7 series connection of two utmost point voltage-stabiliser tubes, ten No. two resistance 134 links to each other with load circuit of LED 5, one end of No. nine resistance 131 links to each other with the positive pole of power circuit 4, and two utmost point voltage-stabiliser tubes 7 link to each other with the negative pole of power circuit 4.

In addition, need to prove, the specific embodiment described in this specification, its zero, the shape of parts, institute's title of being named etc. can be different.Allly conceive equivalence or the simple change that described structure, feature and principle are done, be included in the protection range of the utility model patent according to the utility model patent.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount the defined scope of these claims, all should belong to protection range of the present utility model.

Claims

1. An anti-jamming constant voltage and constant current circuit device for LED energy-saving lamps, comprising a power supply circuit and a load light-emitting diode circuit, the described power supply circuit is provided with a light-emitting diode open-circuit damage protection circuit, and it is characterized in that: the described A three-terminal electronic voltage stabilizer device is arranged between the power supply circuit and the load light-emitting diode circuit.

2. The anti-interference constant voltage and constant current circuit device for LED energy-saving lamps according to claim 1, characterized in that: the three-terminal electronic voltage regulator device is composed of a three-terminal voltage regulator, a No. 1 resistor, and a No. 2 No. 1 resistor, No. 3 resistor and No. 4 resistor, the input terminal of the three-terminal voltage regulator is connected to the power circuit, the output terminal of the three-terminal voltage stabilizer is connected to the No. 1 resistor and the No. The resistors are connected in parallel, the third resistor is connected in series with the second resistor and the fourth resistor respectively, the fourth resistor is connected with the load LED circuit, and the second resistor and the first resistor are respectively connected with the ground terminal of the three-terminal regulator.

3. The anti-interference constant voltage and constant current circuit device for LED energy-saving lamps according to claim 1, characterized in that: said three-terminal electronic voltage regulator device is composed of No. 5 resistor, No. 6 resistor, and No. 7 resistor , No. 8 resistor, No. 1 triode, No. 2 triode, No. 3 triode, and diode regulator. One end of No. 5 resistor is connected to the positive pole of the power supply circuit and the collector of No. 1 triode respectively. The other end of No. 5 resistor Connect to the collector of the No. 2 transistor, the No. 6 resistor, and the base of the No. 1 triode respectively. The other end of the No. 6 resistor is respectively connected to the collector of the No. 3 triode, No. 7 resistor, and the base of the No. The other end of the resistor is connected to the base of the No. 3 transistor and one end of the diode regulator respectively, and the emitter of the No. 1 triode, the emitter of the No. 2 triode, and the emitter of the No. 3 triode are respectively connected to one end of the No. 8 resistor. , the other end of the No. 8 resistor is connected to the load light-emitting diode circuit. The other end of the diode regulator tube is connected to the negative pole of the power supply circuit.

4. The anti-jamming constant voltage and constant current circuit device for LED energy-saving lamps according to claim 1, characterized in that: said three-terminal electronic voltage regulator device consists of No. 9 resistor, No. 10 resistor, and No. 11 resistor. Resistor, No. 12 resistor, No. 1 digital-analog tube, No. 2 digital-analog tube, No. 3 digital-analog tube, and diode voltage regulator tube. No. 9 resistor, No. 10 resistor, and No. 11 resistor are connected in series. , No. 10 resistor, and No. 11 resistor are connected in parallel with No. 1 digital-analog tube, No. 2 digital-analog tube, and No. 3 digital-analog tube, and then connected in series with No. It is connected with the load light-emitting diode circuit, one end of the No. 9 resistor is connected with the positive pole of the power supply circuit, and the diode regulator tube is connected with the negative pole of the power supply circuit.