CN210579372U - LED lamp driving circuit - Google Patents
LED lamp driving circuit Download PDFInfo
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- CN210579372U CN210579372U CN201921510680.6U CN201921510680U CN210579372U CN 210579372 U CN210579372 U CN 210579372U CN 201921510680 U CN201921510680 U CN 201921510680U CN 210579372 U CN210579372 U CN 210579372U
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- 239000003990 capacitor Substances 0.000 claims abstract description 91
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 24
- 239000004065 semiconductor Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model discloses a LED lamp drive circuit includes: the LED light-emitting circuit comprises a capacitance voltage reduction circuit, a rectifying circuit, a photoelectric control circuit and an LED light-emitting circuit, wherein the capacitance voltage reduction circuit comprises a power supply J1, a resistor R1 and a capacitor C1; the rectifying circuit comprises a rectifying diode VD1, a rectifying diode VD2, a rectifying diode VD3, a rectifying diode VD4, a voltage stabilizing diode DZ1, a capacitor C2 and a capacitor C3; the photoelectric control circuit comprises a photosensitive resistor R2, a resistor R3 and a triode VT 1; the LED light-emitting circuit comprises a light-emitting diode VD5, a light-emitting diode VD6, a light-emitting diode VD7 and a light-emitting diode VD 8; the utility model discloses design voltage stabilizing circuit in rectifier circuit, carry out the electric current after the step-down is accomplished to step down in the step-down circuit through zener diode among voltage stabilizing circuit and carry out steady voltage in predetermined numerical range, and then make operating current can not appear the condition of high pressure or low pressure at the during operation, and then has stopped the phenomenon of extinguishing even that the scintillation appears when the LED lamp is opened.
Description
Technical Field
The utility model relates to a drive circuit specifically is a LED lamp drive circuit.
Background
The LED lamp is an electroluminescent semiconductor material chip, silver glue or white glue is solidified on the support, then the chip and the circuit board are connected through silver wires or gold wires, the periphery of the LED lamp is sealed through epoxy resin, the effect of protecting an internal core wire is achieved, and finally the shell is installed, so that the anti-seismic performance of the LED lamp is good.
The semiconductor wafer is composed of two parts, one of which is a P-type semiconductor in which holes predominate and the other of which is an N-type semiconductor in which electrons predominate.
And because designed the electric capacity step-down circuit among the current LED lamp drive circuit and carry out the electric current that restricts the biggest work, however current LED lamp drive circuit does not design voltage stabilizing circuit after accomplishing the step-down circuit behind rectifier circuit, and then makes operating voltage's electric current unstable at the during operation, and then can cause the LED lamp to appear twinkling when opening and even extinguish the phenomenon.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: an LED lamp driving circuit is provided to solve the above problems of the prior art.
The technical scheme is as follows: an LED lamp driving circuit comprising:
the LED driving circuit comprises a capacitance voltage reduction circuit, a rectifying circuit, a photoelectric control circuit and an LED light-emitting circuit;
the capacitance voltage reduction circuit comprises a power supply J1, a resistor R1 and a capacitor C1;
the L end of the power supply J1 is connected with one end of the resistor R1 and one end of a capacitor C1, and the other end of the capacitor C1 is communicated with the other end of the resistor R1;
the rectifying circuit comprises a rectifying diode VD1, a rectifying diode VD2, a rectifying diode VD3, a rectifying diode VD4, a voltage stabilizing diode DZ1, a capacitor C2 and a capacitor C3;
the anode of the rectifying diode VD1 is connected to one end of the resistor R1 and one end of a capacitor C1, the cathode of the rectifying diode VD1 is connected to the anode of the rectifying diode VD3, the cathode of the rectifying diode VD3 is connected to the cathode of the zener diode DZ1, the cathode of the rectifying diode VD3 is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to the anode of the zener diode DZ1, the other end of the capacitor C2 is connected to the N-terminal of the power supply J1, the N-terminal of the power supply J1 is connected to the anode of the rectifying diode VD2, the cathode of the rectifying diode VD2 is connected to the anode of the rectifying diode VD4, the cathode of the rectifying diode VD4 is connected to the cathode of the zener diode DZ1, and the cathode of the rectifying diode VD4 is connected to one end of the capacitor C2; one end of the capacitor C2 is connected with the cathode of the voltage stabilizing diode DZ 1; one end of the capacitor C3 is connected with the cathodes of the rectifier diode VD3, the rectifier diode VD4 and the voltage stabilizing diode DZ 1; the other end of the capacitor C3 is connected with the anodes of an N-end rectifying diode VD2 and a voltage stabilizing diode DZ1 of the power supply J1; one end of the capacitor C3 is connected with one end of the capacitor C2, and the other end of the power supply C3 is connected with the other end of the power supply C2;
the photoelectric control circuit comprises a photosensitive resistor R2, a resistor R3 and a triode VT 1;
one end of the photosensitive resistor R2 is communicated with one end of the capacitor C2, one end of the photosensitive resistor R2 is connected with the cathodes of the zener diode DZ1, the rectifier diode VD3 and the rectifier diode VD4, and one end of the photosensitive resistor R2 is connected with the collector of the triode VT 1; the other end of the photosensitive resistor R2 is connected with the base of the triode VT1 and one end of the resistor R3, and the other end of the resistor R3 is connected with the emitter of the triode VT1, the other end of the capacitor C2, the anode of the zener diode DZ1, the N end of the power supply J1 and the anode of the rectifier diode VD 2; one end of the photosensitive resistor R2 is connected with one end of the capacitor C3, the other end of the resistor R3 is connected with the other end of the capacitor C3, and an emitter of the triode VT1 is connected with the other end of the capacitor C3;
the LED light-emitting circuit comprises a light-emitting diode VD5, a light-emitting diode VD6, a light-emitting diode VD7 and a light-emitting diode VD 8;
the anode of the light emitting diode VD5 is connected to the collector of the triode VT1, one end of a photoresistor R2, one end of a capacitor C2, the cathode of a zener diode DZ1, the cathode of a rectifier diode VD3, and the cathode of a rectifier diode VD4, the cathode of the light emitting diode VD5 is connected to the anode of the light emitting diode VD6, the cathode of the light emitting diode VD6 is connected to the anode of the light emitting diode VD7, the cathode of the light emitting diode VD7 is connected to the anode of the light emitting diode VD8, and the cathode of the light emitting diode VD8 is connected to the emitter of the triode VT1, the other end of the resistor R3, the other end of the capacitor C2, the anode of the zener diode DZ1, the N end of a power supply J1, and the anode of the rectifier diode VD 2; and the cathode of the light-emitting diode VD8 is connected with the other end of the capacitor C3.
In a further embodiment, the rectifying diode VD1, the rectifying diode VD2, the rectifying diode VD3 and the rectifying diode VD4 are all diodes 1N 4007.
In a further embodiment, the capacitance value of the capacitor C1 is 0.22 μ F, the voltage value of the capacitor C1 is 250V; the capacitance values of the capacitor C2 and the capacitor C3 are 100 muF, and the withstand voltage value of the capacitor C2 is 25V.
In a further embodiment, the resistance value of the resistor R1 is 1M Ω, the resistance value of the resistor R3 is 3K Ω, the photo resistor R2 is a GL4516 resistor, and the photo resistor R2 is designed to sense the change of an external light source, so as to turn on and off the light emitting diode VD5, the light emitting diode VD6, the light emitting diode VD7, and the light emitting diode VD 8.
In a further embodiment, the zener diode DZ1 has a voltage value of 5.1V.
Has the advantages that: the utility model discloses a LED lamp drive circuit, the utility model discloses design voltage stabilizing circuit in rectifier circuit, carry out the electric current after the step-down is accomplished to step down in the step-down circuit through the zener diode among the voltage stabilizing circuit and carry out stabilizing voltage at predetermined numerical range, and then make operating current can not appear the condition of high pressure or low pressure at the during operation, and then has stopped the phenomenon of extinguishing even that appears flickering when the LED lamp is opened.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
Through research and analysis of the applicant, the reason for the problem (flickering and even extinguishing phenomena occur when the LED lamp is turned on) is that the current of the maximum operation is limited by the capacitor voltage reduction circuit in the existing LED lamp driving circuit, however, the voltage stabilizing circuit is not designed after the current of the existing LED lamp driving circuit passes through the rectifying circuit after the voltage reduction circuit is completed, thereby making the current of the working voltage unstable during working and further causing the phenomenon of flickering and even extinguishing when the LED lamp is turned on, the utility model designs a voltage stabilizing circuit in the rectifying circuit, stabilizes the voltage of the current after the voltage reduction in the voltage reduction circuit within a preset value range through a voltage stabilizing diode in the voltage stabilizing circuit, and then the working current can not generate the condition of high voltage or low voltage during working, and the phenomenon of flickering and even extinguishing when the LED lamp is turned on is avoided.
An LED lamp driving circuit comprising: the LED driving circuit comprises a capacitance voltage reduction circuit, a rectifying circuit, a photoelectric control circuit and an LED light-emitting circuit; the capacitance voltage reduction circuit comprises a power supply J1, a resistor R1 and a capacitor C1; the rectifying circuit comprises a rectifying diode VD1, a rectifying diode VD2, a rectifying diode VD3, a rectifying diode VD4, a voltage stabilizing diode DZ1, a capacitor C2 and a capacitor C3; the photoelectric control circuit comprises a photosensitive resistor R2, a resistor R3 and a triode VT 1;
the L end of the power supply J1 is connected with one end of the resistor R1 and one end of a capacitor C1, and the other end of the capacitor C1 is communicated with the other end of the resistor R1; the LED light-emitting circuit comprises a light-emitting diode VD5, a light-emitting diode VD6, a light-emitting diode VD7 and a light-emitting diode VD 8;
the anode of the rectifying diode VD1 is connected to one end of the resistor R1 and one end of a capacitor C1, the cathode of the rectifying diode VD1 is connected to the anode of the rectifying diode VD3, the cathode of the rectifying diode VD3 is connected to the cathode of the zener diode DZ1, the cathode of the rectifying diode VD3 is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to the anode of the zener diode DZ1, the other end of the capacitor C2 is connected to the N-terminal of the power supply J1, the N-terminal of the power supply J1 is connected to the anode of the rectifying diode VD2, the cathode of the rectifying diode VD2 is connected to the anode of the rectifying diode VD4, the cathode of the rectifying diode VD4 is connected to the cathode of the zener diode DZ1, and the cathode of the rectifying diode VD4 is connected to one end of the capacitor C2; one end of the capacitor C2 is connected with the cathode of the voltage stabilizing diode DZ 1; one end of the capacitor C3 is connected with the cathodes of the rectifier diode VD3, the rectifier diode VD4 and the voltage stabilizing diode DZ 1; the other end of the capacitor C3 is connected with the anodes of an N-end rectifying diode VD2 and a voltage stabilizing diode DZ1 of the power supply J1; one end of the capacitor C3 is connected with one end of the capacitor C2, and the other end of the power supply C3 is connected with the other end of the power supply C2;
one end of the photosensitive resistor R2 is communicated with one end of the capacitor C2, one end of the photosensitive resistor R2 is connected with the cathodes of the zener diode DZ1, the rectifier diode VD3 and the rectifier diode VD4, and one end of the photosensitive resistor R2 is connected with the collector of the triode VT 1; the other end of the photosensitive resistor R2 is connected with the base of the triode VT1 and one end of the resistor R3, and the other end of the resistor R3 is connected with the emitter of the triode VT1, the other end of the capacitor C2, the anode of the zener diode DZ1, the N end of the power supply J1 and the anode of the rectifier diode VD 2; one end of the photosensitive resistor R2 is connected with one end of the capacitor C3, the other end of the resistor R3 is connected with the other end of the capacitor C3, and an emitter of the triode VT1 is connected with the other end of the capacitor C3;
the anode of the light emitting diode VD5 is connected to the collector of the triode VT1, one end of a photoresistor R2, one end of a capacitor C2, the cathode of a zener diode DZ1, the cathode of a rectifier diode VD3, and the cathode of a rectifier diode VD4, the cathode of the light emitting diode VD5 is connected to the anode of the light emitting diode VD6, the cathode of the light emitting diode VD6 is connected to the anode of the light emitting diode VD7, the cathode of the light emitting diode VD7 is connected to the anode of the light emitting diode VD8, and the cathode of the light emitting diode VD8 is connected to the emitter of the triode VT1, the other end of the resistor R3, the other end of the capacitor C2, the anode of the zener diode DZ1, the N end of a power supply J1, and the anode of the rectifier diode VD 2; and the cathode of the light-emitting diode VD8 is connected with the other end of the capacitor C3.
The rectifying diode VD1, the rectifying diode VD2, the rectifying diode VD3 and the rectifying diode VD4 are all diodes 1N 4007.
The capacitance value of the capacitor C1 is 0.22 muF, and the voltage value of the capacitor C1 is 250V; the capacitance values of the capacitor C2 and the capacitor C3 are 100 muF, and the withstand voltage value of the capacitor C2 is 25V.
Resistance value of resistance R1 is 1M omega, resistance value of resistance R3 is 3K omega, photo resistance R2 is GL4516 resistance, and the photo resistance R2 of design mainly is in order can to respond to the external light source and change, and then opens, closes emitting diode VD5, emitting diode VD6, emitting diode VD7 and emitting diode VD 8.
The voltage value of the zener diode DZ1 is 5.1V.
Description of the working principle: the voltage reduction circuit of the utility model, power supply J1 leads to alternating current 220V, switch-on resistance R1 this moment, electric capacity C1 will be at the circuit that the capacitive reactance that produces under the alternating signal of certain frequency comes the restriction maximum operating current this moment, divide voltage through resistance R1 and electric capacity C1 are parallelly connected, electric capacity C1 has played the effect of limiting current and dynamic distribution condenser and load both ends voltage this moment, the electric current after the restriction switches on rectifier circuit again this moment, carry out the rectification to the electric current after the restriction by rectifier diode VD1, rectifier diode VD2, rectifier diode VD3, rectifier diode VD4 at this moment, convert alternating current into low-voltage direct current, the electric current will communicate electric capacity C3 this moment, the wave form current after the voltage stabilization will be carried out through electric capacity C3 this moment to the steady direct current to the adjustment, because the voltage after the rectification can appear the jump range of predetermined frequency, the electric current will switch on voltage stabilization diode DZ1 this, at the moment, the current is stabilized at 5.1V by the voltage stabilizing diode DZ1, the current is communicated with the capacitor C2 and the photoelectric control circuit, the external light source is sensed by the photoresistor R2, when the brightness of the light source is lower than the preset value, the current is communicated with the triode VT1 through the photoresistor R2 and then communicated with the light-emitting circuit, when the brightness of the light source is higher than the preset value, the photoresistor R2 is communicated with the resistor R3 and then communicated with the N end of the power supply J1 to avoid the light-emitting circuit, when the current is communicated with the triode VT1 through the photoresistor R2 and then communicated with the light-emitting diodes VD5, VD6, VD7 and VD8, when the light-emitting diodes VD5, VD6, VD7 and VD8 are communicated, and then the current is communicated with the N end of the power supply J1 through the light-emitting diodes VD5, VD6, VD7 and VD8, and then the light emitting operation of the light emitting diode VD5, the light emitting diode VD6, the light emitting diode VD7 and the light emitting diode VD8 is completed.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.
Claims (5)
1. An LED lamp driving circuit, characterized by includes:
the LED driving circuit comprises a capacitance voltage reduction circuit, a rectifying circuit, a photoelectric control circuit and an LED light-emitting circuit;
the capacitance voltage reduction circuit comprises a power supply J1, a resistor R1 and a capacitor C1;
the L end of the power supply J1 is connected with one end of the resistor R1 and one end of a capacitor C1, and the other end of the capacitor C1 is communicated with the other end of the resistor R1;
the rectifying circuit comprises a rectifying diode VD1, a rectifying diode VD2, a rectifying diode VD3, a rectifying diode VD4, a voltage stabilizing diode DZ1, a capacitor C2 and a capacitor C3;
the anode of the rectifying diode VD1 is connected to one end of the resistor R1 and one end of a capacitor C1, the cathode of the rectifying diode VD1 is connected to the anode of the rectifying diode VD3, the cathode of the rectifying diode VD3 is connected to the cathode of the zener diode DZ1, the cathode of the rectifying diode VD3 is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to the anode of the zener diode DZ1, the other end of the capacitor C2 is connected to the N-terminal of the power supply J1, the N-terminal of the power supply J1 is connected to the anode of the rectifying diode VD2, the cathode of the rectifying diode VD2 is connected to the anode of the rectifying diode VD4, the cathode of the rectifying diode VD4 is connected to the cathode of the zener diode DZ1, and the cathode of the rectifying diode VD4 is connected to one end of the capacitor C2; one end of the capacitor C2 is connected with the cathode of the voltage stabilizing diode DZ 1; one end of the capacitor C3 is connected with the cathodes of the rectifier diode VD3, the rectifier diode VD4 and the voltage stabilizing diode DZ 1; the other end of the capacitor C3 is connected with the anodes of an N-end rectifying diode VD2 and a voltage stabilizing diode DZ1 of the power supply J1; one end of the capacitor C3 is connected with one end of the capacitor C2, and the other end of the capacitor C3 is connected with the other end of the capacitor C2;
the photoelectric control circuit comprises a photosensitive resistor R2, a resistor R3 and a triode VT 1;
one end of the photosensitive resistor R2 is communicated with one end of the capacitor C2, one end of the photosensitive resistor R2 is connected with the cathodes of the zener diode DZ1, the rectifier diode VD3 and the rectifier diode VD4, and one end of the photosensitive resistor R2 is connected with the collector of the triode VT 1; the other end of the photosensitive resistor R2 is connected with the base of the triode VT1 and one end of the resistor R3, and the other end of the resistor R3 is connected with the emitter of the triode VT1, the other end of the capacitor C2, the anode of the zener diode DZ1, the N end of the power supply J1 and the anode of the rectifier diode VD 2; one end of the photosensitive resistor R2 is connected with one end of the capacitor C3, the other end of the resistor R3 is connected with the other end of the capacitor C3, and an emitter of the triode VT1 is connected with the other end of the capacitor C3;
the LED light-emitting circuit comprises a light-emitting diode VD5, a light-emitting diode VD6, a light-emitting diode VD7 and a light-emitting diode VD 8;
the anode of the light emitting diode VD5 is connected to the collector of the triode VT1, one end of a photoresistor R2, one end of a capacitor C2, the cathode of a zener diode DZ1, the cathode of a rectifier diode VD3, and the cathode of a rectifier diode VD4, the cathode of the light emitting diode VD5 is connected to the anode of the light emitting diode VD6, the cathode of the light emitting diode VD6 is connected to the anode of the light emitting diode VD7, the cathode of the light emitting diode VD7 is connected to the anode of the light emitting diode VD8, and the cathode of the light emitting diode VD8 is connected to the emitter of the triode VT1, the other end of the resistor R3, the other end of the capacitor C2, the anode of the zener diode DZ1, the N end of a power supply J1, and the anode of the rectifier diode VD 2; and the cathode of the light-emitting diode VD8 is connected with the other end of the capacitor C3.
2. The LED lamp driving circuit according to claim 1, wherein: the rectifying diode VD1, the rectifying diode VD2, the rectifying diode VD3 and the rectifying diode VD4 are all diodes 1N 4007.
3. The LED lamp driving circuit according to claim 1, wherein: the capacitance value of the capacitor C1 is 0.22 muF, and the voltage value of the capacitor C1 is 250V; the capacitance values of the capacitor C2 and the capacitor C3 are 100 muF, and the withstand voltage value of the capacitor C2 is 25V.
4. The LED lamp driving circuit according to claim 1, wherein: the resistance value of the resistor R1 is 1M omega, the resistance value of the resistor R3 is 3K omega, and the photoresistor R2 is a GL4516 resistor.
5. The LED lamp driving circuit according to claim 1, wherein: the voltage value of the zener diode DZ1 is 5.1V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921510680.6U CN210579372U (en) | 2019-09-11 | 2019-09-11 | LED lamp driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921510680.6U CN210579372U (en) | 2019-09-11 | 2019-09-11 | LED lamp driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210579372U true CN210579372U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921510680.6U Active CN210579372U (en) | 2019-09-11 | 2019-09-11 | LED lamp driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210579372U (en) |
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2019
- 2019-09-11 CN CN201921510680.6U patent/CN210579372U/en active Active
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Kanglou Road, Industrial Concentration Zone, Dailou Town, Jinhu County, Huai'an City, Jiangsu Province, 211600 Patentee after: Jiangsu Shangfu Electronics Co.,Ltd. Address before: 211700 Kanglou Road, Industrial Concentration Zone, Dalou Town, Jinhu County, Huai'an City, Jiangsu Province Patentee before: Jiangsu Shangfu Electronics Co.,Ltd. |
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