CN204145843U - A kind of photovoltaic LED lighting system delay and power adjusting circuit - Google Patents
A kind of photovoltaic LED lighting system delay and power adjusting circuit Download PDFInfo
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- CN204145843U CN204145843U CN201420585060.XU CN201420585060U CN204145843U CN 204145843 U CN204145843 U CN 204145843U CN 201420585060 U CN201420585060 U CN 201420585060U CN 204145843 U CN204145843 U CN 204145843U
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- 239000004065 semiconductor Substances 0.000 claims abstract description 40
- 239000013078 crystal Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 abstract description 7
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a kind of photovoltaic LED lighting system delay and power adjusting circuit, comprise single-chip microcomputer U1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and triode VT1.The utility model is by using photovoltaic LED lighting system delay and the power adjusting circuit of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and single-chip microcomputer U1 design, under the prerequisite ensureing the original delay function of photovoltaic LED lighting system, add the circuit of LED power adjustment, before the late into the night that there is no need employing highlight illumination and dawn during this period of time, electric energy has greatly been saved.
Description
Technical field
The utility model relates to a kind of time delay and power adjusting circuit, specifically a kind of photovoltaic LED lighting system delay and power adjusting circuit.
Background technology
Existing photovoltaic LED lighting system takes darkness automatically to light mostly, daybreak automatic distinguishing principle work, there is a very large shortcoming in this system: the brightness that automatically can not regulate LED.At dim light of night chin-deep, when not needing the illumination of high strength, the brightness of photovoltaic LED lamp is too large, wastes a large amount of electric energy.
Utility model content
The purpose of this utility model be to provide a kind of simple effectively, can the photovoltaic LED lighting system delay of adjusting brightness of LED lamps and power adjusting circuit automatically, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of photovoltaic LED lighting system delay and power adjusting circuit, comprise single-chip microcomputer U1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and triode VT1, described single-chip microcomputer U1 pin RES is contact resistance R2 and electric capacity C1 respectively, the electric capacity C1 other end connects power supply VCC respectively, the D pole of metal-oxide-semiconductor Q1, single-chip microcomputer U1 pin P3.5, light-emitting diode D3 positive pole, resistance R1, the resistance R2 other end, electric capacity C2, electric capacity C3 and single-chip microcomputer pin GND, the electric capacity C3 other end connects crystal oscillator Y and single-chip microcomputer U1 pin X2 respectively, single-chip microcomputer U1 pin X1 connects the electric capacity C2 other end and the crystal oscillator Y other end respectively, described resistance R1 other end connecting luminous diode D3 negative pole, the S pole ground connection of described metal-oxide-semiconductor Q1, the G pole of metal-oxide-semiconductor Q1 connects power supply VCC respectively, light-operated input and triode VT1 collector electrode, triode VT1 grounded emitter, triode VT1 base stage contact resistance R3, the resistance R3 other end connects single-chip microcomputer U1 pin P1.2, single-chip microcomputer U1 pin P1.1 connects diode D1 positive pole, diode D1 negative pole connects G pole and the resistance R4 of metal-oxide-semiconductor Q2 respectively, resistance R4 other end connecting luminous diode D4 positive pole, light-emitting diode D4 minus earth, the S pole of described metal-oxide-semiconductor Q2 connects diode D2 positive pole and ground connection, diode D2 negative pole connects D pole and the LED output of metal-oxide-semiconductor Q2 respectively, described single-chip microcomputer U1 pin Vcc connects power supply VCC.
As further program of the utility model: described light-emitting diode D3 and light-emitting diode D4 indicates the on off operating mode of metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 respectively, detection when facilitating circuit system to be out of order is observed.
As the utility model further scheme: described single-chip microcomputer U1 model is AT89C51.
Compared with prior art, the beneficial effects of the utility model are: the utility model is by using photovoltaic LED lighting system delay and the power adjusting circuit of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and single-chip microcomputer U1 design, under the prerequisite ensureing the original delay function of photovoltaic LED lighting system, add the circuit of LED power adjustment, before the late into the night that there is no need employing highlight illumination and dawn during this period of time, electric energy has greatly been saved.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of photovoltaic LED lighting system delay and power adjusting circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of photovoltaic LED lighting system delay and power adjusting circuit, comprise single-chip microcomputer U1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and triode VT1, single-chip microcomputer U1 pin RES is contact resistance R2 and electric capacity C1 respectively, the electric capacity C1 other end connects power supply VCC respectively, the D pole of metal-oxide-semiconductor Q1, single-chip microcomputer U1 pin P3.5, light-emitting diode D3 positive pole, resistance R1, the resistance R2 other end, electric capacity C2, electric capacity C3 and single-chip microcomputer pin GND, the electric capacity C3 other end connects crystal oscillator Y and single-chip microcomputer U1 pin X2 respectively, single-chip microcomputer U1 pin X1 connects the electric capacity C2 other end and the crystal oscillator Y other end respectively, resistance R1 other end connecting luminous diode D3 negative pole, the S pole ground connection of metal-oxide-semiconductor Q1, the G pole of metal-oxide-semiconductor Q1 connects power supply VCC respectively, light-operated input and triode VT1 collector electrode, triode VT1 grounded emitter, triode VT1 base stage contact resistance R3, the resistance R3 other end connects single-chip microcomputer U1 pin P1.2, single-chip microcomputer U1 pin P1.1 connects diode D1 positive pole, diode D1 negative pole connects G pole and the resistance R4 of metal-oxide-semiconductor Q2 respectively, resistance R4 other end connecting luminous diode D4 positive pole, light-emitting diode D4 minus earth, the S pole of metal-oxide-semiconductor Q2 connects diode D2 positive pole and ground connection, diode D2 negative pole connects D pole and the LED output of metal-oxide-semiconductor Q2 respectively, single-chip microcomputer U1 pin Vcc connects power supply VCC.
Light-emitting diode D3 and light-emitting diode D4 indicates the on off operating mode of metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 respectively, and detection when facilitating circuit system to be out of order is observed.
Single-chip microcomputer U1 model is AT89C51.
Operation principle of the present utility model is: when environment illumination intensity reduces, photovoltaic LED lighting system preorder circuit light-operated switch exports high level to the utility model circuit, controls metal-oxide-semiconductor Q1 conducting, connects single-chip microcomputer U1 power supply, single-chip microcomputer U1 electrification reset, automatically starts timing and starts timing.When timing arrives, single-chip microcomputer U1 controls pin P1.2 and exports high level, realizes delay-action function.Single-chip microcomputer U1 cyclic query pin P1.2 and pin P3.5, when P1.2 and P3.5 is high level, single-chip microcomputer U1 pin P1.1 exports spike train, controls driver output metal-oxide-semiconductor Q2 conducting and shutoff, realizes the automatic adjustment of LED illumination street lamp power output.
Delay circuit designs: after single-chip microcomputer electrifying startup, under timing working state, counting overflows, producing and once interrupt, through repeatedly interrupting circulation, realizing time delay, when delay time arrives, Single-chip Controlling pin P1.2 is by low transition to high level, and this Automatic level control metal-oxide-semiconductor Q2 conducting, driving LED illuminating street lamp is lighted.
Low-power exports design: the utility model adopts PWM mode driving LED street lamp, realize power output adjustment, by single-chip microcomputer U1 cyclic query pattern, when single-chip microcomputer U1 pin P1.2 and single-chip microcomputer U1 pin P3.5 is high level, spike train is exported by single-chip microcomputer pin P1.1, send into LED drive circuit, realize lighting and extinguishing of LED street lamp.According to eye visual persistence phenomenon, the output spike train cycle of design is far smaller than the retentivity time of eye, and the LED illumination street lamp that human eye is seen is illuminating state, dark when its brightness ratio rated power exports, and realizes energy-saving and cost-reducing object.Because white LED illumination lamp power is comparatively large, not easily Direct driver, adopts the adjustable spike train of output duty cycle to go to trigger metal-oxide-semiconductor, controls LED street lamp light on and off, reduce control power consumption.
Claims (3)
1. a photovoltaic LED lighting system delay and power adjusting circuit, comprise single-chip microcomputer U1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and triode VT1, it is characterized in that, described single-chip microcomputer U1 pin RES is contact resistance R2 and electric capacity C1 respectively, the electric capacity C1 other end connects power supply VCC respectively, the D pole of metal-oxide-semiconductor Q1, single-chip microcomputer U1 pin P3.5, light-emitting diode D3 positive pole, resistance R1, the resistance R2 other end, electric capacity C2, electric capacity C3 and single-chip microcomputer pin GND, the electric capacity C3 other end connects crystal oscillator Y and single-chip microcomputer U1 pin X2 respectively, single-chip microcomputer U1 pin X1 connects the electric capacity C2 other end and the crystal oscillator Y other end respectively, described resistance R1 other end connecting luminous diode D3 negative pole, the S pole ground connection of described metal-oxide-semiconductor Q1, the G pole of metal-oxide-semiconductor Q1 connects power supply VCC respectively, light-operated input and triode VT1 collector electrode, triode VT1 grounded emitter, triode VT1 base stage contact resistance R3, the resistance R3 other end connects single-chip microcomputer U1 pin P1.2, single-chip microcomputer U1 pin P1.1 connects diode D1 positive pole, diode D1 negative pole connects G pole and the resistance R4 of metal-oxide-semiconductor Q2 respectively, resistance R4 other end connecting luminous diode D4 positive pole, light-emitting diode D4 minus earth, the S pole of described metal-oxide-semiconductor Q2 connects diode D2 positive pole and ground connection, diode D2 negative pole connects D pole and the LED output of metal-oxide-semiconductor Q2 respectively, described single-chip microcomputer U1 pin Vcc connects power supply VCC.
2. photovoltaic LED lighting system delay according to claim 1 and power adjusting circuit, it is characterized in that, described light-emitting diode D3 and light-emitting diode D4 indicates the on off operating mode of metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 respectively, and detection when facilitating circuit system to be out of order is observed.
3. photovoltaic LED lighting system delay according to claim 1 and power adjusting circuit, is characterized in that, described single-chip microcomputer U1 model is AT89C51.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585060.XU CN204145843U (en) | 2014-09-28 | 2014-09-28 | A kind of photovoltaic LED lighting system delay and power adjusting circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585060.XU CN204145843U (en) | 2014-09-28 | 2014-09-28 | A kind of photovoltaic LED lighting system delay and power adjusting circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204145843U true CN204145843U (en) | 2015-02-04 |
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| CN201420585060.XU Expired - Fee Related CN204145843U (en) | 2014-09-28 | 2014-09-28 | A kind of photovoltaic LED lighting system delay and power adjusting circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631410A (en) * | 2018-06-22 | 2018-10-09 | 河南森源电气股份有限公司 | A kind of photovoltaic generation unit booting-self controller device and a kind of power supply system |
-
2014
- 2014-09-28 CN CN201420585060.XU patent/CN204145843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631410A (en) * | 2018-06-22 | 2018-10-09 | 河南森源电气股份有限公司 | A kind of photovoltaic generation unit booting-self controller device and a kind of power supply system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20150928 |
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| EXPY | Termination of patent right or utility model |