CN209282908U - A kind of solar street light power supply system - Google Patents

A kind of solar street light power supply system Download PDF

Info

Publication number
CN209282908U
CN209282908U CN201920002214.0U CN201920002214U CN209282908U CN 209282908 U CN209282908 U CN 209282908U CN 201920002214 U CN201920002214 U CN 201920002214U CN 209282908 U CN209282908 U CN 209282908U
Authority
CN
China
Prior art keywords
oxide
semiconductor
metal
electrically connected
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920002214.0U
Other languages
Chinese (zh)
Inventor
孙伟
吴帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Remote Power Renewable Energy Technology Co
Original Assignee
Beijing Remote Power Renewable Energy Technology Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Remote Power Renewable Energy Technology Co filed Critical Beijing Remote Power Renewable Energy Technology Co
Priority to CN201920002214.0U priority Critical patent/CN209282908U/en
Application granted granted Critical
Publication of CN209282908U publication Critical patent/CN209282908U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model embodiment discloses a kind of solar street light power supply system, including solar battery, battery, controller and load lamp, wherein, the controller includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit, it is characterized in that, the battery is single-lithium-battery core;The major loop of the PWM charging circuit includes the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, and the grid of first metal-oxide-semiconductor and the grid of the second metal-oxide-semiconductor and the driving circuit of 12V are electrically connected;The PWM discharge circuit includes switching circuit and BOOST circuit, and the BOOST circuit is used to increase the output voltage of the battery.The solar street light power supply system can be powered using single-lithium-battery core for solar street light, and can satisfy demand of the load light source to high output voltage, achieve the purpose that continually and steadily to work, to realize the effective use of single-lithium-battery core.

Description

A kind of solar street light power supply system
Technical field
The utility model relates to power supply control field more particularly to a kind of solar street light power supply systems.
Background technique
Solar controller is applied in solar energy photovoltaic system, and full name is solar charging discharging controller, for coordinating Solar panel, battery, load work, be very important component in photovoltaic system.Make entire photovoltaic system System is efficient, safe running.Solar street lamp controller is mainly used for family, shopping centre, factory, traffic, pastoral area, communication etc. too Positive energy power supply system.
Solar street lamp controller is mostly 12V/24V system on the market, with the development of science and technology, present lithium battery Have become the mainstream of solar street lamp controller battery unit.But as lithium battery applications are more and more, accordingly not Good elimination product is also more and more, however these superseded lithium battery packs are often that there are problem, big portions for individual battery cores therein Point battery core be it is normal, single-lithium-battery core with lithium battery pack it is superseded not only can waste of resource, but also environment is caused very big Pollution.So the utilization of single-lithium-battery core becomes an extremely urgent problem.
Utility model content
The utility model aim is to provide a kind of solar street light power supply system, to solve the above problems.
The utility model solves technical problem and adopts the following technical scheme that
A kind of solar street light power supply system, including solar battery, battery, controller and load lamp, wherein described Controller includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit, which is characterized in that described Battery is single-lithium-battery core;
The major loop of the PWM charging circuit includes the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, and the grid of first metal-oxide-semiconductor It is electrically connected with the grid of the second metal-oxide-semiconductor with the driving circuit of 12V;
The PWM discharge circuit includes switching circuit and BOOST circuit, and the BOOST circuit is for increasing the electric power storage The output voltage in pond.
Solar street light power supply system disclosed by the utility model, by accessing 12V on the major loop of PWM charging circuit Driving circuit, and using the driving circuit of 12V as accessory power supply control the first MOS pipe and the second metal-oxide-semiconductor switch, solution The problem of metal-oxide-semiconductor caused by low voltage difference of having determined conducting is difficult and metal-oxide-semiconductor generates heat.And BOOST circuit increases the defeated of the battery Voltage out can satisfy load lamp for the demand of high voltage.So that entire solar street light power supply system can utilize Single-lithium-battery core powers for solar street light, and can satisfy demand of the load lamp to high output voltage, reaches continual and steady The purpose of work, to realize the effective use of single-lithium-battery core.
Detailed description of the invention
Fig. 1 is a kind of existing solar street light power supply system;
Fig. 2 is solar street light power supply system circuit diagram provided by the utility model;
The driving circuit signal that Fig. 3 is the 12V of solar street light power supply system PWM charging circuit provided by the utility model Figure;
Fig. 4 is solar street light power supply system power supply circuit schematic diagram provided by the utility model;
Fig. 5 is the drive circuit schematic diagram of solar street light power supply system PWM discharge circuit provided by the utility model;
Fig. 6 is another solar street light power supply system schematic diagram provided by the utility model.
Specific embodiment
As described in background, the utilization of single-lithium-battery core becomes an extremely urgent problem at present.Inventor For this problem, is explored by conscientious thinking and single-lithium-battery core is used solar street light power supply system by experiment, discovery It is a feasible scheme in system.
By carefully analyzing to existing solar street light power supply system, inventor has found existing solar street light power supply System, comprising: solar battery, battery, controller and load lamp.Wherein, as shown in Figure 1, the controller includes center Control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit.In physical circuit distribution, central control circuit It is electrically connected, is mainly controlled by MCU, system voltage is adopted with PWM charging circuit, battery management circuit and PWM discharge circuit respectively Sample simultaneously imported into control algolithm and is calculated, then to the logical output control signal of entire letter, and finally to the charge and discharge of whole system Electricity and battery management carry out logic control;Battery management circuit is electrically connected with battery, and respectively with PWM charging circuit and PWM Discharge circuit electrical connection, internal mainly includes sample circuit, protection circuit and indicator light circuit, and realization is monitored battery And protection.
It has been investigated that the battery of existing solar street light power supply system is based on the battery of 12V, 12V system Charging metal-oxide-semiconductor driving circuit inside PWM charging circuit is driven by solar battery pressure difference, i.e., switch metal-oxide-semiconductor driving by The positive and negative anodes pressure difference of solar battery determines.For single-lithium-battery core, voltage only has 3.2V, solar battery when charging The pressure difference of positive and negative anodes causes metal-oxide-semiconductor so the driving voltage of switch metal-oxide-semiconductor is too low by single-unit lithium cell voltage clamping to 3.2V Conducting is difficult, and even if selecting the metal-oxide-semiconductor of low turn-on voltage, metal-oxide-semiconductor also has the risk of fever under the driving voltage of 3.2V.
Inventor aiming at the problem that finding further above, by deeper into thinking and experiment, propose a kind of sun Energy streetlight power supply system, the solar street light power supply system include solar battery, battery, controller and load lamp, wherein The controller includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit, which is characterized in that The battery is single-lithium-battery core;The major loop of the PWM charging circuit includes the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, and institute The grid and the grid of the second metal-oxide-semiconductor and the driving circuit of 12V for stating the first metal-oxide-semiconductor are electrically connected;The PWM discharge circuit includes opening Powered-down road and BOOST circuit, the BOOST circuit are used to increase the output voltage of the battery.
Above-mentioned solar street light power supply system by the major loop of PWM charging circuit access 12V driving circuit, and Using the driving circuit of 12V as the switch of accessory power supply control the first metal-oxide-semiconductor and the 2nd MOS pipe, solves low voltage difference and cause The problem of metal-oxide-semiconductor conducting is difficult and metal-oxide-semiconductor fever.And BOOST circuit increases the output voltage of the battery, Neng Gouman Demand of the sufficient load lamp for high voltage.So that entire solar street light power supply system can using single-lithium-battery core come for Solar street light power supply, and can satisfy demand of the load lamp to high output voltage, achieve the purpose that continually and steadily to work, thus Realize the effective use of single-lithium-battery core.
The technical solution of the utility model is further elaborated below with reference to examples and drawings.
Present embodiments provide a kind of solar street light power supply system, including solar battery, battery, controller and negative Lamp is carried, the controller includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit.Wherein, institute Stating battery is single-lithium-battery core.For the central control circuit by STM32 chip as master chip, STM32 chip has 12 The channel AD, can be realized system voltage and samples and imported into control algolithm and calculated, and then export control signal to system.Electricity Pond management circuit includes that sample circuit (can recognize cell voltage 2.8V-8.4V, and sample reaching to input and output electric current To the purpose of control electric current), protection circuit and indicator light circuit, for being monitored and protecting to battery.
As shown in Fig. 2, the major loop of the PWM charging circuit includes the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2, and described The grid of the grid of first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 are electrically connected with the driving circuit of 12V;
The PWM discharge circuit includes switching circuit and BOOST circuit, and the BOOST circuit is for increasing the electric power storage The output voltage in pond.
Specifically, drain electrode and the solar battery of the first metal-oxide-semiconductor Q1 in the major loop of the PWM charging circuit Cathode PV- electrical connection, the grid of the first metal-oxide-semiconductor Q1 are electrically connected with the driving circuit of 12V;
The grid of the second metal-oxide-semiconductor Q2 is electrically connected with the driving circuit of 12V, and passes through first resistor R1 and described the The source electrode of one metal-oxide-semiconductor Q1 is electrically connected, and the source electrode of the second metal-oxide-semiconductor Q2 is electrically connected with the source electrode of the first metal-oxide-semiconductor Q1, described The drain electrode of second metal-oxide-semiconductor Q2 is electrically connected by the parallel connection of second resistance R20 and 3rd resistor R3 with battery terminal negative BAT-.
In addition, being additionally provided with a two-way TVS pipe, between the positive and negative anodes of solar battery to prevent rushing for high current It hits, protects controller.
As shown in figure 3, the driving circuit of the 12V, comprising:
Emitter input the first PWM wave PWQG_pv of third transistor Q3, the third transistor Q3, the described 3rd 3 The base stage of pole pipe Q3 is grounded by the 4th resistance R4, the collector of the third transistor Q3 and the anode electricity of first diode D1 Connection;
The emitter of 4th triode Q4, the 4th triode Q4 are grounded, and the base stage of the 4th triode Q4 passes through 5th resistance R5 accesses the solar battery anode PV+, the collector of the 4th triode Q4 and the second diode D2's Anode electrical connection;
The anode of third diode D3, the third diode D3 are electrically connected with solar battery cathode PV-, and pass through the Six resistance R6 access the solar battery anode PV+, the cathode of the third diode D3 pass sequentially through the 7th resistance R7 and 8th resistance R8 is electrically connected with the cathode of the cathode of the first diode D1 and the second diode D2 respectively;
The base stage of 5th triode Q5, the 5th triode Q5 pass through the 7th resistance R7's and third diode D3 The collector of cathode electrical connection, the 5th triode Q5 accesses power supply circuit, the 5th triode by the 9th resistance R9 The emitter of Q5 is electrically connected with the source electrode of the source electrode of the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 respectively;
The collector of 6th triode Q6, the 6th triode Q6 are electrically connected by the tenth resistance R10 with power supply circuit, The emitter of the 6th triode Q6 is electrically connected with the grid of the grid of the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 respectively, The base stage of the 6th triode Q6 cathode and the 5th with the collector of the 5th triode Q5, the 4th diode D4 respectively The cathode of diode D5 is electrically connected, and the anode of the 4th diode D4 is electrically connected with the emitter of the 5th triode Q5, The anode of the 5th diode D5 is electrically connected by eleventh resistor R11 with the emitter of the 6th triode Q6.
Such as Fig. 4, the power supply circuit, comprising:
Boost chip U1, the boost chip U1 include NC interface, IN interface, EN interface, SW interface, GND interface and FB Interface;
Wherein, the IN interface passes through the first wire-wound inductor L1 by the earth of first capacitor C1, the second capacitor C2 It is electrically connected with the anode of the 6th diode D2, and is electrically connected by twelfth resistor R12 with the cathode of the 7th diode D7, it is described The positive BAT+ electrical connection of the anode battery of 7th diode D7;
The EN interface is electrically connected by thirteenth resistor R13 with the IN interface;
The SW interface is electrically connected with the anode of the 6th diode D6;
The GND interfacing ground;
Parallel connection and the cathode of the sixth diode D6 of the FB interface by the 14th resistance R14 and third capacitor C3 Electrical connection, and be grounded by the 15th resistance R15;
The cathode of the 6th diode D6 is electrically connected with the driving circuit of the 12V, and passes through the 4th capacitor C4, the 5th The earth of capacitor C5 and the 6th capacitor C6.
In specific works, the voltage of monolithic machine testing solar battery positive and negative end is to judge solar photocell It is no to have electricity, if the voltage of solar battery positive and negative end is greater than the voltage at accumulator anode and cathode both ends, and accumulator positive at this time The voltage at cathode both ends then needs to charge lower than the charging voltage of setting.At this point, the first PWM wave PWQG_pv of single-chip microcontroller output Low level, third transistor Q3 shutdown are provided, the 5th triode Q5 base stage is turned off without high level, and the 6th triode Q6 base stage is High level conducting, it is 12V that power supply circuit, which exports VDD, and VDD manages the first metal-oxide-semiconductor Q1 and the 2nd MOS by the 6th triode Q6 Q2 conducting starts to charge to battery battery.First PWM wave high level for a period of time, MOS pipe is turned off, and detect battery Voltage continues to charge a battery if battery voltage is lower than setting value.If battery voltage, which is higher than setting value, will close the One metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 stops charging.The PWM charging circuit can control solar battery by set charging Curve charges to battery, and avoid battery because over-discharge, overcharge, superpressure due to damage.
As shown in Fig. 2, the BOOST circuit, comprising:
The anode of Schottky diode SBD, the Schottky diode SBD pass through the second wire-wound inductor L2 and battery Positive BAT+ electrical connection, the cathode of the Schottky diode SBD is electrically connected with the positive LOAD+ of the load lamp, with the 7th There is electrode capacitance C7 anode and the 8th to have the electrical connection of electrode capacitance C8 anode, and there is electrode capacitance C7 and the 8th to have extremely electricity by the described 7th Hold and C8's and connects ground;
The drain electrode of 7th metal-oxide-semiconductor Q7, the 7th metal-oxide-semiconductor Q7 are electrically connected with the anode of the Schottky diode SBD, The grid of the 7th metal-oxide-semiconductor Q7 accesses the driving circuit of PWM discharge circuit, the 7th metal-oxide-semiconductor by the 16th resistance R16 The source electrode of Q7 is electrically connected by the 17th resistance R17 with the grid of the 7th metal-oxide-semiconductor Q7;
The grid of 8th metal-oxide-semiconductor Q8, the 8th metal-oxide-semiconductor Q8 pass through the 18th resistance R18 and battery positive voltage BAT+ electricity Connection, the source electrode of the 8th metal-oxide-semiconductor Q8 are electrically connected with the source electrode of the 7th metal-oxide-semiconductor Q7, and pass through the 19th resistance R19 It is electrically connected with the grid of the 8th metal-oxide-semiconductor Q8, the drain electrode of the 8th metal-oxide-semiconductor Q8 passes through second resistance R2 and 3rd resistor R3 Parallel connection be electrically connected with the cathode BAT- of the battery, and there is the cathode of electrode capacitance C7 and the 8th to have pole with the described 7th respectively The cathode of capacitor C8 is electrically connected.
The switching circuit, comprising:
9th metal-oxide-semiconductor Q9, the drain electrode of the 9th metal-oxide-semiconductor Q9 are electrically connected with the load lamp cathode LOAD-, and described The source electrode of nine metal-oxide-semiconductor Q9 is electrically connected by the 20th resistance R20 with the grid of the 9th metal-oxide-semiconductor Q9, and the 21st electricity is passed through Resistance R21 has the cathode of electrode capacitance C7 and the 8th to have the cathode of electrode capacitance C8 be electrically connected with the described 7th respectively, and passes through described the Seven have electrode capacitance C7 and the 8th have electrode capacitance C8's and even be electrically connected with the positive LOAD+ of the load lamp, the 9th metal-oxide-semiconductor The grid of Q9 is electrically connected by the 22nd resistance R22 with the driving circuit of PWM discharge circuit.
As shown in figure 5, the driving circuit of the PWM discharge circuit, comprising:
Driving chip U2, the driving chip U2 include that INA interface, GND interface, INB interface, OUTA interface, VS connect Mouth, OUTB interface and two NC interfaces;
Wherein, the INA interface is grounded by the 23rd resistance R23, and passes through the 24th resistance R24 access the Two PWM wave PWQ9G_load;
The GND interfacing ground;
The INB interface accesses third PWM wave PWQ7G_boost by the 25th resistance R25, and passes through the 26th Resistance R26 ground connection;
Two NC interfaces are electrically connected and are grounded by the 27th resistance R27;
The OUTA interface accesses the switching circuit, and passes through the 22nd resistance R22 and the 9th metal-oxide-semiconductor The grid of Q9 is electrically connected;
The VS interface accesses power supply circuit, and passes through the earth of the 9th capacitor C19 and the tenth capacitor C10;
The OUTB interface accesses the BOOST circuit, and passes through the 16th resistance R16 and the 7th metal-oxide-semiconductor The grid of Q7 is electrically connected.
In addition, being additionally provided with a two-way TVS pipe between the positive and negative anodes of battery, to prevent the impact of high current, protect Protect controller.
In specific works, is connected, passed through by Boost circuit between battery positive voltage BAT+ and load lamp anode LOAD+ Boost circuit can make output voltage be higher than input voltage, to achieve the purpose that boosting, wherein passing through identification load lamp string Number, single-chip microcontroller can automatically adjust the driving signal of the 7th metal-oxide-semiconductor Q7, and the driving signal of the 7th metal-oxide-semiconductor Q7 is by the second core of single-chip microcontroller Piece U2 is obtained, so that output voltage stabilization, so that load lamp will not flash.
As shown in fig. 6, the solar street light power supply system, further includes wireless communication device, and the wireless communication fills It sets and is electrically connected with the central control circuit.
In addition, the sheathing material of the solar street light power supply system is aluminium, external electromagnetic wave can be shielded to internal electricity Road influences and the internal electromagnetic wave outside radiation generated, and enhances heat dissipation.
The sequencing of above embodiments is not only for ease of description, represent the advantages or disadvantages of the embodiments.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations; Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc. With replacement;And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution The spirit and scope of scheme.

Claims (9)

1. a kind of solar street light power supply system, including solar battery, battery, controller and load lamp, wherein the control Device processed includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit, which is characterized in that the storage Battery is single-lithium-battery core;
The major loop of the PWM charging circuit includes the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, and the grid of first metal-oxide-semiconductor and the The grid of two metal-oxide-semiconductors is electrically connected with the driving circuit of 12V;
The PWM discharge circuit includes switching circuit and BOOST circuit, and the BOOST circuit is for increasing the battery Output voltage.
2. solar street light power supply system according to claim 1, which is characterized in that the drain electrode of first metal-oxide-semiconductor with too The cathode electrical connection of positive energy battery, the grid of first metal-oxide-semiconductor are electrically connected with the driving circuit of 12V;Second metal-oxide-semiconductor Grid is electrically connected with the driving circuit of 12V, and is electrically connected by first resistor with the source electrode of first metal-oxide-semiconductor, described second The source electrode of metal-oxide-semiconductor is electrically connected with the source electrode of first metal-oxide-semiconductor, and the drain electrode of second metal-oxide-semiconductor passes through second resistance and third The parallel connection of resistance is electrically connected with battery terminal negative.
3. solar street light power supply system according to claim 2, which is characterized in that the driving circuit of the 12V, comprising:
Third transistor, the emitter of the third transistor input the first PWM wave, and the base stage of the third transistor passes through the Four resistance eutral groundings, the collector of the third transistor are electrically connected with the anode of first diode;
4th triode, the emitter ground connection of the 4th triode, the base stage of the 4th triode are connect by the 5th resistance Enter the solar battery anode, the collector of the 4th triode is electrically connected with the anode of the second diode;
The anode of third diode, the third diode is electrically connected with solar battery cathode, and is accessed by the 6th resistance Solar battery anode, the cathode of the third diode pass sequentially through the 7th resistance and the 8th resistance respectively with described the The electrical connection of the cathode of the cathode of one diode and the second diode;
The base stage of 5th triode, the 5th triode is electrically connected by the 7th resistance with the cathode of the third diode, The collector of 5th triode by the 9th resistance access power supply circuit, the emitter of the 5th triode respectively with institute State the source electrode electrical connection of the source electrode and the second metal-oxide-semiconductor of the first metal-oxide-semiconductor;
The collector of 6th triode, the 6th triode is electrically connected by the tenth resistance with power supply circuit, and the described 6th 3 The emitter of pole pipe is electrically connected with the grid of the grid of first metal-oxide-semiconductor and the second metal-oxide-semiconductor respectively, the 6th triode Base stage is electrically connected with collector, the cathode of the 4th diode and the cathode of the 5th diode of the 5th triode respectively, institute The anode for stating the 4th diode is electrically connected with the emitter of the 5th triode, and the anode of the 5th diode passes through the tenth One resistance is electrically connected with the emitter of the 6th triode.
4. solar street light power supply system according to claim 3, which is characterized in that the power supply circuit, comprising:
Boost chip, the boost chip include NC interface, IN interface, EN interface, SW interface, GND interface and FB interface;
Wherein, the IN interface passes through the first wire-wound inductor and the six or two pole by first capacitor, the earth of the second capacitor The anode electrical connection of pipe, and be electrically connected by twelfth resistor with the cathode of the 7th diode, the anode of the 7th diode The anode electrical connection of the battery;
The EN interface is electrically connected by thirteenth resistor with the IN interface;
The SW interface is electrically connected with the anode of the 6th diode;
The GND interfacing ground;
The FB interface is electrically connected by the parallel connection of the 14th resistance and third capacitor with the cathode of the 6th diode, and is led to Cross the 15th resistance eutral grounding;
The cathode of 6th diode is electrically connected with the driving circuit of the 12V, and passes through the 4th capacitor, the 5th capacitor and the The earth of six capacitors.
5. solar street light power supply system according to claim 4, which is characterized in that the BOOST circuit, comprising:
The anode of Schottky diode, the Schottky diode is electrically connected by the second wire-wound inductor with battery positive voltage, institute The cathode for stating Schottky diode is electrically connected with the anode of the load lamp, has electrode capacitance anode and the 8th to have electrode capacitance with the 7th Anode electrical connection, and have electrode capacitance and the 8th having an electrode capacitance and connect ground by the described 7th;
7th metal-oxide-semiconductor, the drain electrode of the 7th metal-oxide-semiconductor are electrically connected with the anode of the Schottky diode, the 7th metal-oxide-semiconductor Grid the driving circuit of PWM discharge circuit is accessed by the 16th resistance, the source electrode of the 7th metal-oxide-semiconductor passes through the 17th electricity Resistance is electrically connected with the grid of the 7th metal-oxide-semiconductor;
The grid of 8th metal-oxide-semiconductor, the 8th metal-oxide-semiconductor is electrically connected by the 18th resistance with battery positive voltage, the 8th MOS The source electrode of pipe is electrically connected with the source electrode of the 7th metal-oxide-semiconductor, and is electrically connected by the grid of the 19th resistance and the 8th metal-oxide-semiconductor It connecing, the drain electrode of the 8th metal-oxide-semiconductor is electrically connected by the parallel connection of second resistance and 3rd resistor with the cathode of the battery, and There is the cathode of electrode capacitance and the 8th to there is the cathode of electrode capacitance to be electrically connected with the described 7th respectively.
6. solar street light power supply system according to claim 5, which is characterized in that the switching circuit, comprising:
The drain electrode of 9th metal-oxide-semiconductor, the 9th metal-oxide-semiconductor is electrically connected with the load lamp cathode, and the source electrode of the 9th metal-oxide-semiconductor is logical It crosses the 20th resistance to be electrically connected with the grid of the 9th metal-oxide-semiconductor, have respectively with the described 7th by the 21st resistance extremely electric The cathode of appearance and the 8th have electrode capacitance cathode be electrically connected, and by the described 7th have electrode capacitance and the 8th have electrode capacitance and even It is electrically connected with the anode of the load lamp, the grid of the 9th metal-oxide-semiconductor passes through the drive of the 22nd resistance and PWM discharge circuit Dynamic circuit electrical connection.
7. solar street light power supply system according to claim 6, which is characterized in that the driving electricity of the PWM discharge circuit Road, comprising:
Driving chip, the driving chip include INA interface, GND interface, INB interface, OUTA interface, VS interface, OUTB interface With two NC interfaces;
Wherein, the INA interface accesses the second PWM wave by the 23rd resistance eutral grounding, and by the 24th resistance;
The GND interfacing ground;
The INB interface accesses third PWM wave by the 25th resistance, and passes through the 26th resistance eutral grounding;
Two NC interfaces are electrically connected and pass through the 27th resistance eutral grounding;
The OUTA interface accesses the switching circuit, and passes through the grid of the 22nd resistance and the 9th metal-oxide-semiconductor Electrical connection;
The VS interface accesses power supply circuit, and passes through the earth of the 9th capacitor and the tenth capacitor;
The OUTB interface accesses the BOOST circuit, and passes through the grid of the 16th resistance and the 7th metal-oxide-semiconductor electricity Connection.
8. solar street light power supply system according to claim 1, which is characterized in that further include wireless communication device, and institute Wireless communication device is stated to be electrically connected with the central control circuit.
9. solar street light power supply system according to claim 1, which is characterized in that the solar street light power supply system Sheathing material is aluminium.
CN201920002214.0U 2019-01-02 2019-01-02 A kind of solar street light power supply system Active CN209282908U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920002214.0U CN209282908U (en) 2019-01-02 2019-01-02 A kind of solar street light power supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920002214.0U CN209282908U (en) 2019-01-02 2019-01-02 A kind of solar street light power supply system

Publications (1)

Publication Number Publication Date
CN209282908U true CN209282908U (en) 2019-08-20

Family

ID=67608319

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920002214.0U Active CN209282908U (en) 2019-01-02 2019-01-02 A kind of solar street light power supply system

Country Status (1)

Country Link
CN (1) CN209282908U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112332518A (en) * 2020-10-26 2021-02-05 成都华体慧城科技有限公司 Environmental protection wisdom street lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112332518A (en) * 2020-10-26 2021-02-05 成都华体慧城科技有限公司 Environmental protection wisdom street lamp
CN112332518B (en) * 2020-10-26 2021-10-22 成都华体慧城科技有限公司 Environmental protection wisdom street lamp

Similar Documents

Publication Publication Date Title
CN102035238B (en) Solar charging control circuit
CN201577048U (en) Wind-solar complementary independent power supply system
CN203399372U (en) Solar energy LED street lamp controller for sensing weather
CN101685986A (en) Wind and light complementary power generation system using super capacitor
CN203589779U (en) Solar storage battery charging-discharging controller
CN209282907U (en) A kind of solar street light power supply system
CN106549478A (en) A kind of solar powered power supply
CN204157128U (en) A kind of digital control type control system of solar energy street lamp
CN201904637U (en) Solar charging control circuit
CN218103595U (en) Intelligent charging street lamp control circuit
CN209282908U (en) A kind of solar street light power supply system
CN201797465U (en) Singlechip controlled ultracapacitor accumulator-based photovoltaic system
CN203632908U (en) Solar lamp control device
CN202737786U (en) Solar energy power supply and wireless sensing node using the same
CN205124043U (en) Intelligent solar street lamp system
CN201866679U (en) Solar LED (light-emitting diode) street lamp circuit
CN208522519U (en) A kind of photovoltaic power generation electric storage device
CN207010335U (en) A kind of solar energy low-light TRT
CN202738220U (en) Intelligent solar LED street lamp controller
CN204992677U (en) Pulse width adjusts PWM constant current lithium cell all -in -one that steps up
CN104470146B (en) A kind of self adaptation long-life sampling solar street lamp controller
CN210577924U (en) Charging circuit based on solar charging and system thereof
CN208299529U (en) Integral solar voltage increase and current constant controller
CN208209607U (en) A kind of district road lamp power supply control apparatus based on solar energy
CN203554629U (en) Remote controller for photovoltaic television

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant