CN101351068B - Controller electricized with PWM mode for light-control timing two-way output solar streetlight - Google Patents
Controller electricized with PWM mode for light-control timing two-way output solar streetlight Download PDFInfo
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- CN101351068B CN101351068B CN 200810058103 CN200810058103A CN101351068B CN 101351068 B CN101351068 B CN 101351068B CN 200810058103 CN200810058103 CN 200810058103 CN 200810058103 A CN200810058103 A CN 200810058103A CN 101351068 B CN101351068 B CN 101351068B
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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
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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Abstract
The invention relates to a circuit device which supplies power for the loading with a solar energy battery; wherein, the solar energy battery is serially connected with the homo-polarity end of the solar energy battery through MOS fets Q5 and Q6 which are connected in a combined way; a P3.7 end of a microprocessor PLCC-32 controls the battery charging with the output pulse in a positive and negative pulsed PWM way with pre post interval of 10 to 50ms and pulse width of 1 to 5ms by connecting a coupling circuit which consists of crystal triodes Q9 and Q4 and grids of the MOS fets Q5 and Q6 which are connected in a combined way; the ends of P0.0 and P0.1 of the microprocessor control the openness and closeness of the loading by connecting single-valve amplification circuits Q2 and Q3 which are mutually symmetrical and the corresponding grids of the MOS fets Q5 and Q6; a BCD dial switch S1 sets the light sensitive voltage of the solar battery and voltage feedback circuits R18 and R20 read the voltage of the solar energy battery; the end of P0.0 or P0.1 of the microprocessor and the single-valve amplification circuits Q2 and Q3 form an optical control circuit Q7 or Q8 which is provided with a short-circuit protection circuit of an input end, an output short circuit, an over-current protection circuit, etc.
Description
Technical field
The present invention relates to the circuit arrangement that powers to the load by solar energy and storage battery thereof.
Background technology
Solar cell can receive sunshine by day, transform light energy is become electric energy and by the charge in batteries storage, supply with the solar street light illumination at night.Application number 200710023891.2 Chinese invention patents " control system of solar energy street lamp that a kind of tape jam self check shows ", comprise charging, the lighting circuit be made up of solar cell, storage battery and lamp holder, the solar cell in the system is arranged in parallel field effect transistor Q
1After, through diode D
01To storage battery branch road charging, provide the mains lighting supply of lamp holder branch road arranged side by side by storage battery, be respectively equipped with field effect transistor Q on the lamp holder branch road arranged side by side
2And Q
3, be respectively equipped with sampling resistor R on described charging paths and the lamp holder branch road arranged side by side
42, R
40, R
41Control circuit in the system comprises microprocessor chip, and microprocessor chip detects solar array voltage, battery tension and electric current, the sampling of lamp holder branch current, and is exported by the charging output and two street lamp caps of microprocessor chip control solar cell; Described microprocessor chip is to System self-test, and fault-signal shows by LCD.But the chemical action diffusion motion causes concentration polarization slowly in the storage battery, and simultaneously, water electrolysis produces H in the charging
2Surround negative pole, O
2Surround positive pole, improved electrode potential, cause electrochemical polarization, reduced charge in batteries speed.At present, when battery tension surpasses the 20%--30% of maximum charging voltage, judge by a large amount of gases that battery produces whether controller reduces charging current, like this, not only the charging interval long, nor can reach the prolongation battery purpose in useful life.
Summary of the invention
Imitated storage battery chemical reaction process of the present invention utilizes the PWM mode to modulate the charge in batteries electric current, and purpose provides the light-operated timing two-way output solar streetlight controller that can shorten the charge in batteries time.
Solar street lamp controller of the present invention comprises:
The battery charging circuit that processor and metal-oxide-semiconductor field effect transistor constitute;
The streetlight control circuit that constitutes by microprocessor and metal-oxide-semiconductor field effect transistor;
It is characterized in that:
(1) solar cell is connected with the storage battery homopolar end by metal-oxide-semiconductor field effect transistor Q5, the Q6 that is connected, the voltage width-modulation pulse that the P3.7 end of microprocessor PLCC-32 is exported in the PWM mode is connected with the metal-oxide-semiconductor field effect transistor Q5 that is connected, Q6 grid by the electric resistance partial pressure coupling circuit that transistor Q9, Q4 form, the control charge in batteries;
(2) P0.0 of microprocessor PLCC-32 and P0.1 end is connected with corresponding metal-oxide-semiconductor field effect transistor Q7, Q8 grid by symmetrical single-valve amplification circuit Q2, Q3;
(3) be connected by the P1.5-P1.7 end of four BCD toggle switch S1 and microprocessor PLCC-32 and set solar cell light sensitivity voltage, be connected to read solar array voltage with the P1.1 end of microprocessor PLCC-32 with the voltage feedback circuit form through resistance R 118, R20 by solar cell PV-, and by the P0.0 of microprocessor PLCC-32 or P0.1 end by control metal-oxide-semiconductor field effect transistor Q7 or Q8 gate source voltage after symmetrical single-valve amplification circuit Q2, the Q3 paraphase, the composition light-operated circuit;
Wherein, toggle switch S1 closes light-operated charge mode and programmes with spacing 0.3V arithmetic progression, comprises seven kinds of voltages of 2.0V-3.8V;
(4) two-way street lamp opening timing is respectively by four BCD toggle switch S2, S3 sets, the P2.0-2.3 of input microprocessor PLCC-32 end is held with P2.4-2.7 respectively, and is held by control metal-oxide-semiconductor field effect transistor Q7 or Q8 gate source voltage after symmetrical single-valve amplification circuit Q2, the Q3 paraphase by P0.0 or the P0.1 of microprocessor PLCC-32;
Above metal-oxide-semiconductor field effect transistor is a N channel enhancement metal-oxide-semiconductor field effect transistor.
Described input short-circuit protection circuit is connected with metal-oxide-semiconductor field effect transistor Q5, the negative feedback in parallel of Q6 voltage by resistance R 7, triode Q4.
Described output short-circuit and current foldback circuit comprise metal-oxide-semiconductor field effect transistor Q7, Q8, sample resistance R30, the R31 of feedback network and voltage-stabiliser tube D5, D6, wherein, field effect transistor Q7, Q8 drain and are connected with the P1.3 end with the P1.2 of microprocessor PLCC-32 by sample resistance R30, the R31 of Voltage Feedback network and diode D5, D6, and microprocessor PLCC-32P0.0 or P0.1 end are by single-valve amplification circuit Q2 or Q3 and corresponding metal-oxide-semiconductor field effect transistor Q7, the connection of Q8 grid;
Above-mentioned Voltage Feedback network also can be made of sample resistance R30, R31 and voltage-stabiliser tube D5, D6.
Described counnter attack at night charge protector is connected with the P1.1 end of microprocessor PLCC-32 through Voltage Feedback network resistor R118, R20 by solar battery P V-; when solar cell voltage was lower than battery tension, the P3.7 of microprocessor PLCC-32 end output low level was turn-offed metal-oxide-semiconductor field effect transistor Q5, the Q6 that is connected.
Intermittently the 10-50ms loop cycle is reciprocal with front and back for positive pulse that the PWM that above-described microprocessor provides provides and negative pulse, and positive pulse and negative pulse pulsewidth are 1-5ms.
Compared with the prior art, when the Q5 that is connected, Q6 were high level or low level stable state when input signal, two metal-oxide-semiconductors were in conducting or cut-off state simultaneously, made between PV-end and the storage battery negative terminal and formed the Low ESR DC channel, no-load current＜20mA, quiescent dissipation is little; In addition, metal-oxide-semiconductor Q5, the Q6 output logic amplitude of oscillation of connecting between two leakage-sources are about 30V, positive pulse that the PWM that provides when microprocessor provides and negative pulse are when intermittently the 10-50ms loop cycle is reciprocal with front and back, eliminate polarization electron ion, improve rapidly or the recovery battery tension around battery terminal.
The effect that the present invention has is:
Adopt microprocessor to adjust storage battery PWM charging pulse width, shortened the charge in batteries time, charge in batteries is fast, and 50-60 hour initial charge time shortened to about 5 hours, and the boost charge time shortened to about 1 hour by original 7-8 hour;
Have input, output overcurrent short-circuit protection function, when short circuit appears in solar cell or load, controller can cut off charging circuit or output automatically, protection storage battery and controller are not damaged.
Realize overcharge of a battery and deep-discharge protection by the pulse duration of regulating electric current, when voltage was lower than under-voltage cut-out voltage, controller can cut off load automatically protect not over-discharge can of battery, prolonged storage battery useful life;
Light-operated and the time control function of lighting with timesharing is lighted in the support two-way load that light sensitivity is adjustable simultaneously.
Time control, Light control road lamp control, timing length and light sensitivity toggle switch are regulated.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.Wherein, microprocessor is PLCC-32 (STC12C5408AD), Q5, Q6, Q7, Q8 model IRF120, Q9 model C 33740, Q1, Q5, Q6 model C 337, R30, R31 are 100K Ω, R18 is that 15K Ω, R20 are 100K Ω, C5 is 0.01 μ F, R3, R5 are 10K Ω, and R4, R6 are 4.7K Ω, and R7, R2 are 100K Ω, R13 is 4.7K Ω, R11 is 390 Ω, and C11, C12 are 0.022 μ F, and R26-29 is 4.7K Ω, DS1-DS4 is respectively green, yellow and red led, and the Y1 frequency is 18.432M.
Fig. 2 is a microprocessor control flow chart of the present invention.
Embodiment
The present invention will be further described below in conjunction with attached Fig. 1 and 2.
(1) basic control circuit of the present invention
Among Fig. 1, solar cell is connected with the storage battery homopolar end by N channel enhancement metal-oxide-semiconductor field effect transistor Q5, the Q6 that is connected, the voltage width-modulation pulse that the P3.7 end of microprocessor PLCC-32 is exported in the PWM mode is connected with the N-channel MOS fet gate that Q5, Q6 are connected by the electric resistance partial pressure coupling circuit that transistor Q9, Q4 form, and microprocessor control charge in batteries, intermittently the 10-50ms loop cycle is reciprocal with front and back for PWM positive pulse that it provides and negative pulse, and positive pulse and negative pulse pulsewidth are 1-5ms.
The P0.0 of microprocessor PLCC-32 and P0.1 end is connected with corresponding N-channel MOS field effect transistor Q7, Q8 grid by symmetrical single-valve amplification circuit Q2, Q3, when P0.0 or P0.1 hold when being output as low level Q7 or Q8 gate source voltage V
GS＞V
T, Q7 or Q8 conducting, street lamp is opened.
Be connected to set solar cell light sensitivity voltage with the P1.5-P1.7 end of microprocessor PLCC-32 by four BCD toggle switch S1, be connected to read solar cell voltage with the P1.1 end of microprocessor PLCC-32 with voltage feedback circuit through resistance R 21, R22 by solar battery P V-, and by the P0.0 of microprocessor PLCC-32 or P0.1 end by control Q7 or Q8 gate source voltage after symmetrical single-valve amplification circuit Q2, the Q3 paraphase, the composition light-operated circuit.Wherein, toggle switch S1 is to close light-operated charge mode and is the ordered series of numbers of equal difference by 0.3V, comprises 2.0,2.3,2.6,2.9,3.2,3.5, seven kinds of voltages of 3.8V.
When dusk solar cell voltage was lower than the light sensitivity voltage of setting, the P0.0 of microprocessor PLCC-32 or P0.1 end were low level, by symmetrical single-valve amplification circuit Q2, Q3 paraphase, and Q7 or Q8 gate source voltage V
GS＞V
T, Q7, Q8 conducting, street lamp is opened.
When solar cell voltage was higher than the light sensitivity voltage of setting in daybreak, the P0.0 of microprocessor PLCC-32 or P0.1 end were high level, by symmetrical single-valve amplification circuit Q2, Q3 paraphase, and Q7 or Q8 gate source voltage V
GS＜V
T, Q7, Q8 turn-off, and street lamp cuts out.
For example, when toggle switch S1 numerical value equals 0, close light-operated, this moment this controller be common charge controller; Allow to open load when solar panel voltage is lower than 2V when numerical value equals 1.Allow to open load during every interval 0.3V.2.3-3.8V the time allow to open load, corresponding to the 2-7BCD sign indicating number of toggle switch S1.
Load 1 and 2 two-way street lamp opening timing times of load are respectively by four BCD toggle switch S2, S3 sets, the P2.0-2.3 of input microprocessor PLCC-32 end is held with P2.4-2.7 respectively, and is held by control Q7 or Q8 gate source voltage after symmetrical single-valve amplification circuit Q2, the Q3 paraphase by P0.0 or the P0.1 of microprocessor PLCC-32.
Four BCD toggle switch S2, S3 are used for the street lamp open-interval and regularly are provided with.
For example, when numerical value equaled 0, load 1 or 2 was under-voltage or at day close at storage battery; When numerical value equals 1 hour-15 hours, the time that load 1 is opened is 1 hour-15 hours.
(2) input short-circuit protection circuit and output short-circuit, current foldback circuit
Among Fig. 1, the input short-circuit protection circuit is connected with metal-oxide-semiconductor field effect transistor Q5, the negative feedback in parallel of Q6 voltage by resistance R 7, triode Q4.When the input short circuit, drain-source voltage reduces between metal-oxide-semiconductor field effect transistor Q5, the Q6, R7 and Q5 drain electrode link current potential reduce, because the shunting of current parallel negative feedback R7, the electric current of input Q4 base stage is reduced, the Q4 current gain descends, and the metal-oxide-semiconductor field effect transistor gate source voltage is also along with reduction, when the Q4 collector potential is lower than the N channel enhancement metal-oxide-semiconductor field effect transistor grid cut-in voltage V that Q5, Q6 are connected
TThe time, turn-off solar cell and storage battery connecting circuit.
Q4 collector electrode series limiting resistor R11, connect voltage-stabiliser tube D2 between metal-oxide-semiconductor field effect transistor Q5, the Q6 grid source, its puncture voltage equals metal-oxide-semiconductor field effect transistor supply voltage 15V, and when voltage surpassed between the field effect transistor grid source maximum voltage, D2 played the effect of current potential clamper and restriction electric current.
Output short-circuit and current foldback circuit comprise metal-oxide-semiconductor field effect transistor Q7, Q8; sample resistance R30, the R31 of feedback network and voltage-stabiliser tube D5, D6; wherein; field effect transistor Q7, Q8 drain and are connected with the P1.3 end with the P1.2 of microprocessor PLCC-32 by sample resistance R30, the R31 of Voltage Feedback network and voltage-stabiliser tube D5, D6, and microprocessor PLCC-32P0.0 or P0.1 end are by single-valve amplification circuit Q2 or Q3 and corresponding metal-oxide-semiconductor field effect transistor Q7, the connection of Q8 grid.This Voltage Feedback network also can be made of sample resistance R30, R31 and diode D5, D6.
Output short-circuit and current foldback circuit principle are: P1.2 and P1.3 end by microprocessor PLCC-32 are gone up voltage by sample resistance R30, R31 detection field effect transistor Q7 or Q8; when overcurrent or short circuit; Q7 or Q8 drain electrode instantaneous voltage reduce; the voltage feedback circuit output current potential that R30, D6 or R31, D5 constitute reduces, and microprocessor PLCC-32P0.0 or P0.1 end output high level are by single-valve amplification circuit Q2 or Q3 and corresponding N-channel MOS field effect transistor Q7, Q8 gate turn-off output voltage.
(3) counnter attack at night charge protector
Among Fig. 1; counnter attack at night charge protector is connected with the P1.1 end of microprocessor PLCC-32 through Voltage Feedback network resistor R21 and R22 by solar battery P V-; when solar cell voltage was lower than battery tension, the P3.7 of microprocessor PLCC-32 end output low level was turn-offed N-channel MOS field effect transistor Q5, the Q6 that is connected.
(4) display circuit
Among Fig. 1, the indicator light corresponding with Presentation Function is respectively: the bright then system of green relay indicating light is normal, otherwise undesired.The bright storage battery of red led is under-voltage, and red light goes out then that the storage battery electricity is full of.To be that charging indicator light is bright fill amber light entirely, amber light flicker pulse-width modulation charging; Amber light goes out and stops charging. Green light 1 and 2 is the bright then load of load indicator light output, and the green light then load of going out is turn-offed.
(5) microprocessor control mode of the present invention
Among Fig. 2, connect storage battery, connect load and solar cell after, green relay indicating light is bright, yellow charging indicator light is bright, microprocessor enters initialization, simultaneously control program work.
Discharge H2 and O2 consumed power because overcharge of a battery can make water in the electrolyte constantly decompose, electrolyte washes away pole plate for a long time, influence storage battery useful life, and lasting charging can make plate vulcanizing after the overdischarge, also can influence the pole plate life-span.Therefore; when step begins; output current sample resistance R30, the R31 of Q7, Q8 gives microprocessor PLCC-32 by P1.2 and P1.3 end in the Voltage Feedback mode, and whether this input voltage signal can detect battery tension is accumulator protecting voltage 14.4V ± 0.1V or 28.8V ± 0.1V.When battery tension was 13.6V ± 0.1V or 27.2V ± 0.1V, it was the floating charge mode that microprocessor PLCC-32 will adjust PWM; When storage battery is 13.0V ± 0.1V or 26.0V ± 0.1V, microprocessor PLCC-32 will adjust PWM for filling mode by force.
Enter the pattern determining program.When metal-oxide-semiconductor field effect transistor Q7 is detected by microprocessor PLCC-32 is the under-voltage voltage status of 10.8V ± 0.1V or 21.6V ± 0.1V, or metal-oxide-semiconductor field effect transistor Q8 detection is 11.4V ± 0.1V or the under-voltage voltage status of 22.8V ± 0.1V, the P0.0 of microprocessor PLCC-32 or P0.1 end will be exported high level by single-valve amplification circuit Q2 or Q3 and corresponding metal-oxide-semiconductor field effect transistor Q7, Q8 gate turn-off output voltage, promptly close load.
Otherwise, be connected the solar cell voltage PV+ of acquisition with the P1.1 end of microprocessor PLCC-32 and set solar cell light sensitivity voltage ratios through current-limiting resistance R18 and sample resistance R20 according to solar battery P V+ by four BCD toggle switch S1, when solar cell voltage is lower than the light sensitivity voltage of four BCD toggle switch S1 settings, the P1.2 of microprocessor PLCC-32 and P1.3 end are by sample resistance R30, R31 detects field effect transistor Q7 or Q8 goes up voltage, determine whether short circuit or overload phenomenon, if detect normal, then P0.0 or P0.1 end is low level, Q7 or Q8 gate source voltage V
GS＞V
T, Q7, Q8 conducting, street lamp is opened.
Otherwise solar cell voltage is higher than the light sensitivity voltage that toggle switch S1 sets, and control program enters the street lamp pattern, returns main program and waits for.P0.0 or P0.1 end are low level, Q7 or Q8 gate source voltage V
GS＜V
T, Q7, Q8 turn-off, and street lamp cuts out.
And Q7 or the reduction of Q8 drain voltage when load overcurrent or short circuit, microprocessor PLCC-32P0.0 or P0.1 end output high level are by single-valve amplification circuit Q2 or Q3 and corresponding metal-oxide-semiconductor field effect transistor Q7, Q8 gate turn-off output voltage.
Above metal-oxide-semiconductor field effect transistor is N channel enhancement metal-oxide-semiconductor field effect transistor.
Claims (5)
1.PWM the light-operated timing two-way output solar streetlight controller that mode is charged comprises:
The battery charging circuit that microprocessor and metal-oxide-semiconductor field effect transistor constitute;
The streetlight control circuit that constitutes by microprocessor and metal-oxide-semiconductor field effect transistor;
It is characterized in that:
(1) solar cell is connected with the storage battery homopolar end by metal-oxide-semiconductor field effect transistor Q5, the Q6 that is connected, above-mentioned microprocessor adopts microprocessor PLCC-32, the voltage width-modulation pulse that the P3.7 end of microprocessor PLCC-32 is exported in the PWM mode is connected with the metal-oxide-semiconductor field effect transistor Q5 that is connected, Q6 grid by the electric resistance partial pressure coupling circuit that transistor Q9, Q4 form, the control charge in batteries;
(2) P0.0 of described microprocessor PLCC-32 and P0.1 end is connected with corresponding metal-oxide-semiconductor field effect transistor Q7, Q8 grid by symmetrical single-valve amplification circuit Q2, Q3;
(3) be connected by the P1.5-P1.7 end of four BCD toggle switch S1 and microprocessor PLCC-32 and set solar cell light sensitivity voltage, be connected to read solar array voltage with the P1.1 end of described microprocessor PLCC-32 with the voltage feedback circuit form through resistance R 18, R20 by solar cell negative terminal PV-, and by the P0.0 of microprocessor PLCC-32 or P0.1 end by control metal-oxide-semiconductor field effect transistor Q7 or Q8 gate source voltage after symmetrical single-valve amplification circuit Q2, the Q3 paraphase, the composition light-operated circuit;
Wherein, toggle switch S1 closes light-operated charge mode and programmes with spacing 0.3V arithmetic progression, comprises seven kinds of voltages of 2.0V-3.8V;
(4) two-way street lamp opening timing is respectively by four BCD toggle switch S2, S3 sets, import the P2.0-2.3 end and P2.4-2.7 end of described microprocessor PLCC-32 respectively, and hold by control metal-oxide-semiconductor field effect transistor Q7 or Q8 gate source voltage after symmetrical single-valve amplification circuit Q2, the Q3 paraphase by P0.0 or the P0.1 of described microprocessor PLCC-32;
Above metal-oxide-semiconductor field effect transistor is a N channel enhancement metal-oxide-semiconductor field effect transistor, and described microprocessor PLCC-32 model is: STC12C5408AD.
2. the light-operated timing two-way output solar streetlight controller that PWM mode according to claim 1 is charged is characterized in that the input short-circuit protection circuit is connected with metal-oxide-semiconductor field effect transistor Q5, the negative feedback in parallel of Q6 voltage by resistance R 7, triode Q4.
3. the light-operated timing two-way output solar streetlight controller that PWM mode according to claim 1 is charged; it is characterized in that output short-circuit and current foldback circuit comprise metal-oxide-semiconductor field effect transistor Q7; Q8; the sample resistance R30 of Voltage Feedback network; R31 and voltage-stabiliser tube D5; D6; wherein; field effect transistor Q7; the Q8 drain electrode is by the sample resistance R30 of Voltage Feedback network; R31 and diode D5; D6 is connected with the P1.3 end with the P1.2 of described microprocessor PLCC-32, and microprocessor PLCC-32P0.0 or P0.1 end are by single-valve amplification circuit Q2 or Q3 and corresponding metal-oxide-semiconductor field effect transistor Q7; the Q8 grid connects.
4. the light-operated timing two-way output solar streetlight controller that PWM mode according to claim 1 is charged; it is characterized in that counnter attack at night charge protector is connected with the P1.1 end of described microprocessor PLCC-32 through Voltage Feedback network resistor R18, R20 by solar cell negative terminal PV-; when solar cell voltage was lower than battery tension, the P3.7 of described microprocessor PLCC-32 end output low level was turn-offed metal-oxide-semiconductor field effect transistor Q5, the Q6 that is connected.
5. the light-operated timing two-way output solar streetlight controller that charges according to claim 1,2,3 or 4 described PWM modes, it is characterized in that PWM positive pulse and negative pulse that microprocessor PLCC-32 provides are reciprocal with front and back 10-50ms loop cycle at intermittence, positive pulse and negative pulse pulsewidth are 1-5ms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810058103 CN101351068B (en) | 2008-02-19 | 2008-02-19 | Controller electricized with PWM mode for light-control timing two-way output solar streetlight |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810058103 CN101351068B (en) | 2008-02-19 | 2008-02-19 | Controller electricized with PWM mode for light-control timing two-way output solar streetlight |
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| CN101351068B true CN101351068B (en) | 2011-10-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562931B (en) * | 2009-04-10 | 2013-03-20 | 北京昌日新能源科技有限公司 | Solar lamp controller with adjustable light control points |
| CN102625511B (en) * | 2011-01-26 | 2014-03-26 | 陈建华 | Self-boosting wind and light complementation solar energy street lamp controller |
| CN102970804A (en) * | 2012-12-12 | 2013-03-13 | 云南拓日科技有限公司 | Intelligentized state data storage type solar streetlight controller |
| CN103260314A (en) * | 2013-05-24 | 2013-08-21 | 深圳市华星光电技术有限公司 | Short circuit protection circuit and electronic device with same |
| CN109633095A (en) * | 2018-12-29 | 2019-04-16 | 广州宜南电子科技有限公司 | Portable gas detector circuit |
| CN111327104B (en) * | 2020-02-28 | 2022-03-01 | 中兴能源有限公司 | Solar charging control circuit and method |
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| CN1064789C (en) * | 1996-05-15 | 2001-04-18 | 快捷韩国半导体有限公司 | Solar cell power source device |
| CN2852393Y (en) * | 2005-09-16 | 2006-12-27 | 北京天恒华意科技发展有限公司 | Solar energy charge/discharge controller |
| CN101094550A (en) * | 2007-07-06 | 2007-12-26 | 江苏伯乐达光电科技有限公司 | Control system of solar energy street lamp with display of self checked fault |
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|---|---|---|---|---|
| CN1064789C (en) * | 1996-05-15 | 2001-04-18 | 快捷韩国半导体有限公司 | Solar cell power source device |
| CN2852393Y (en) * | 2005-09-16 | 2006-12-27 | 北京天恒华意科技发展有限公司 | Solar energy charge/discharge controller |
| CN101094550A (en) * | 2007-07-06 | 2007-12-26 | 江苏伯乐达光电科技有限公司 | Control system of solar energy street lamp with display of self checked fault |
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