CN105813256A - LED street lamp lighting controller - Google Patents
LED street lamp lighting controller Download PDFInfo
- Publication number
- CN105813256A CN105813256A CN201610145946.6A CN201610145946A CN105813256A CN 105813256 A CN105813256 A CN 105813256A CN 201610145946 A CN201610145946 A CN 201610145946A CN 105813256 A CN105813256 A CN 105813256A
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- diode
- resistance
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- electric capacity
- street lamp
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- 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]
- H05B45/40—Details of LED load circuits
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an LED street lamp lighting controller, which comprises a capacitor C4, a resistor R4, a diode D1, an MOS tube Q1 and a potentiometer RP1, wherein one end of the capacitor C4 is connected with the resistor R4, an anode of the diode D1, the anode of a diode D2, a resistor R1 and a 220V AC; a cathode of the diode D1 is connected with a resistor R2; the other end of the resistor R2 is connected with a drain of the MOS tube Q1; the cathode of the diode D2 is connected with a resistor R3 and a capacitor C2; the other end of the resistor R1 is connected with a sliding end of the potentiometer RP1, a fixed end of the potentiometer RP1 and a capacitor C1. The LED street lamp lighting controller is simple in circuit structure, few in components and free of a transformer structure; and the volume of a product is greatly reduced. A zero-crossing voltage regulating circuit comprises the MOS tube and a triode, so that the stability of a circuit is improved. Meanwhile, a piezoresistor is also arranged at a power supply side for protecting the circuit, so that the LED street lamp lighting controller has the advantages of being diverse in function, convenient to use and low in cost.
Description
Technical field
The present invention relates to a kind of street lamp circuit, specifically a kind of LED street lamp lighting controller.
Background technology
Along with the negative effect caused by Global Greenhouse Effect constantly manifests, in the world every country all using energy-saving and emission-reduction as the major issue that must take in native economic development, the emerging power-saving technology that LED illumination technology is arisen at the historic moment just under this background.Current LED illumination product has had been applied in daily life, along with developing rapidly of LED.The conventional light source that present white LED light source is compared has life-span length, solid state lighting is hardly damaged, specular removal, without advantages such as hydrargyrum environmental protection, antidetonations, following will become third generation light source, another revolution of lighting field will be brought.Extremely wide particularly in field of street lamp lighting application, current LED street lamp mostly is transformer pressure-reducing structure, and its volume is big, is easily disturbed, and circuit loss is serious, therefore needs to be improved.
Summary of the invention
It is an object of the invention to provide the LED street lamp lighting controller of a kind of simple in construction, stable performance, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
nullA kind of LED street lamp lighting controller，Including electric capacity C4、Resistance R4、Diode D1、Metal-oxide-semiconductor Q1 and potentiometer RP1，One end of described electric capacity C4 connects resistance R4、The anode of diode D1、The anode of diode D2、Resistance R1 and 220V alternating current，The negative electrode of diode D1 connects resistance R2，The other end of resistance R2 connects the drain electrode of metal-oxide-semiconductor Q1，The negative electrode of diode D2 connects resistance R3 and electric capacity C2，The other end of resistance R1 connects the sliding end of potentiometer RP1、The fixing end of of potentiometer RP1 and electric capacity C1，The other end of electric capacity C4 connects the other end of 220V alternating current、The other end of resistance R4、Electric capacity C2、Electric capacity C3、The anode of diode D3、The anode of diode D4、The emitter stage of audion V1 and LED lamp H，Another fixing end of potentiometer RP1 connects the negative electrode of diode D3 and the base stage of audion V1，The other end of resistance R3 connects the negative electrode of diode D4、The colelctor electrode of audion V1 and the grid of metal-oxide-semiconductor Q1，The source electrode of metal-oxide-semiconductor Q1 connects the other end of electric capacity C3 and the other end of LED group H.
Preferred version as the present invention: described resistance R4 is varistor.
Compared with prior art; the invention has the beneficial effects as follows: LED street lamp lighting controller circuit structure of the present invention is simple, components and parts are few; transless structure; it is greatly reduced the volume of product; utilize metal-oxide-semiconductor and audion composition zero passage regulating circuit, add the stability of circuit, be also provided with varistor at mains side simultaneously; for protecting circuit, therefore there is diverse in function, the advantage that easy to use and cost is low.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of LED street lamp lighting controller；
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1，In the embodiment of the present invention，A kind of LED street lamp lighting controller，Including electric capacity C4、Resistance R4、Diode D1、Metal-oxide-semiconductor Q1 and potentiometer RP1，One end of described electric capacity C4 connects resistance R4、The anode of diode D1、The anode of diode D2、Resistance R1 and 220V alternating current，The negative electrode of diode D1 connects resistance R2，The other end of resistance R2 connects the drain electrode of metal-oxide-semiconductor Q1，The negative electrode of diode D2 connects resistance R3 and electric capacity C2，The other end of resistance R1 connects the sliding end of potentiometer RP1、The fixing end of of potentiometer RP1 and electric capacity C1，The other end of electric capacity C4 connects the other end of 220V alternating current、The other end of resistance R4、Electric capacity C2、Electric capacity C3、The anode of diode D3、The anode of diode D4、The emitter stage of audion V1 and LED lamp H，Another fixing end of potentiometer RP1 connects the negative electrode of diode D3 and the base stage of audion V1，The other end of resistance R3 connects the negative electrode of diode D4、The colelctor electrode of audion V1 and the grid of metal-oxide-semiconductor Q1，The source electrode of metal-oxide-semiconductor Q1 connects the other end of electric capacity C3 and the other end of LED group H.
Resistance R4 is varistor.
The operation principle of the present invention is: after the line voltage of 220V first passes around electric capacity C4 filtering and varistor R4, filters then through D2 halfwave rectifier and electric capacity C2, and resistance R4 is varistor, is used for the moment overvoltage bypassing on electrical network, to protect late-class circuit.Direct-current working volts are provided for the grid of metal-oxide-semiconductor Q1 and the colelctor electrode of switch transistors pipe V1.R1, RP1 and electric capacity C1 form RC phase-shift network, and D3 is arranged for electric capacity C1 charge and discharge over the ground.The conducting of power switch MOSFET and shutoff, by the control of small-signal transistor V1.At the positive half cycle of line voltage, V1 is made to turn on by R1, RP1.During V1 turns on, Q1 turns off.Otherwise, when V1 ends, Q1 saturation conduction.The effect of diode D1 is to ensure that T1 is only in the starting stage conducting of the positive half cycle of Vac, forms needle-like pulse current and Large Copacity filter capacitor C3 is charged.RC phase-shift network produces a phase-shifting voltages, as long as and this voltage with input line voltage across zero cross point be starting point, phase-shifting voltages reach the threshold voltage of Q1, V1 then opens conducting so that Q1 ends, the then charging termination to electric capacity C3.V1 turns off after power frequency civil power crosses zero cross point.Owing to the drain electrode of Q1 concatenates a commutation diode D1, therefore C3 can not be charged at line voltage negative half period.Although the needle-like pulse current narrower in width produced when Q1 turns on, that is the charging interval of C3 is very short, but owing to the capacity of C3 is very large, discharge time constant is also just very big, when voltage on C3 just begins to decline because discharging or declines few, Q1 turns on again, starts again C3 is charged.Therefore, smoother VD can be produced at C3 two ends, be used for supplying LED street lamp and use.
Claims (2)
- null1. a LED street lamp lighting controller，Including electric capacity C4、Resistance R4、Diode D1、Metal-oxide-semiconductor Q1 and potentiometer RP1，It is characterized in that，One end of described electric capacity C4 connects resistance R4、The anode of diode D1、The anode of diode D2、Resistance R1 and 220V alternating current，The negative electrode of diode D1 connects resistance R2，The other end of resistance R2 connects the drain electrode of metal-oxide-semiconductor Q1，The negative electrode of diode D2 connects resistance R3 and electric capacity C2，The other end of resistance R1 connects the sliding end of potentiometer RP1、The fixing end of of potentiometer RP1 and electric capacity C1，The other end of electric capacity C4 connects the other end of 220V alternating current、The other end of resistance R4、Electric capacity C2、Electric capacity C3、The anode of diode D3、The anode of diode D4、The emitter stage of audion V1 and LED lamp H，Another fixing end of potentiometer RP1 connects the negative electrode of diode D3 and the base stage of audion V1，The other end of resistance R3 connects the negative electrode of diode D4、The colelctor electrode of audion V1 and the grid of metal-oxide-semiconductor Q1，The source electrode of metal-oxide-semiconductor Q1 connects the other end of electric capacity C3 and the other end of LED group H.
- 2. LED street lamp lighting controller according to claim 1, it is characterised in that described resistance R4 is varistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145946.6A CN105813256B (en) | 2016-03-08 | 2016-03-08 | A kind of LED street lamp lighting controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145946.6A CN105813256B (en) | 2016-03-08 | 2016-03-08 | A kind of LED street lamp lighting controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105813256A true CN105813256A (en) | 2016-07-27 |
| CN105813256B CN105813256B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610145946.6A Expired - Fee Related CN105813256B (en) | 2016-03-08 | 2016-03-08 | A kind of LED street lamp lighting controller |
Country Status (1)
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| CN (1) | CN105813256B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103179737A (en) * | 2011-12-26 | 2013-06-26 | 海洋王照明科技股份有限公司 | Single-key switch control circuit and LED (light emitting diode) lighting |
| CN203136243U (en) * | 2013-01-05 | 2013-08-14 | 广州奥迪通用照明有限公司 | Shunting constant-current circuit with overvoltage protection |
| KR20140020001A (en) * | 2012-08-07 | 2014-02-18 | 서울반도체 주식회사 | Circuit of driving light emitting diode by using constant current control for minimizing thd and method of driving the same |
| CN104010418A (en) * | 2014-06-03 | 2014-08-27 | 厦门市东林电子有限公司 | Low-cost separated component dimming circuit of LED light source |
| CN204616175U (en) * | 2015-05-23 | 2015-09-02 | 李清波 | A kind of LED power circuit |
| CN204652739U (en) * | 2015-05-19 | 2015-09-16 | 西安含章电子科技有限公司 | A kind of LED power circuit |
| CN204795713U (en) * | 2015-06-02 | 2015-11-18 | 深圳嘉睿悦能科技有限公司 | LED step -down voltage stabilizing circuit |
| CN205430690U (en) * | 2016-03-08 | 2016-08-03 | 何小平 | LED street lamp light operator |
-
2016
- 2016-03-08 CN CN201610145946.6A patent/CN105813256B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103179737A (en) * | 2011-12-26 | 2013-06-26 | 海洋王照明科技股份有限公司 | Single-key switch control circuit and LED (light emitting diode) lighting |
| KR20140020001A (en) * | 2012-08-07 | 2014-02-18 | 서울반도체 주식회사 | Circuit of driving light emitting diode by using constant current control for minimizing thd and method of driving the same |
| CN203136243U (en) * | 2013-01-05 | 2013-08-14 | 广州奥迪通用照明有限公司 | Shunting constant-current circuit with overvoltage protection |
| CN104010418A (en) * | 2014-06-03 | 2014-08-27 | 厦门市东林电子有限公司 | Low-cost separated component dimming circuit of LED light source |
| CN204652739U (en) * | 2015-05-19 | 2015-09-16 | 西安含章电子科技有限公司 | A kind of LED power circuit |
| CN204616175U (en) * | 2015-05-23 | 2015-09-02 | 李清波 | A kind of LED power circuit |
| CN204795713U (en) * | 2015-06-02 | 2015-11-18 | 深圳嘉睿悦能科技有限公司 | LED step -down voltage stabilizing circuit |
| CN205430690U (en) * | 2016-03-08 | 2016-08-03 | 何小平 | LED street lamp light operator |
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|---|---|
| CN105813256B (en) | 2017-10-10 |
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