CN106655727A - Device for reducing power consumption of solar bypass switching circuit, and method implemented by device - Google Patents
Device for reducing power consumption of solar bypass switching circuit, and method implemented by device Download PDFInfo
- Publication number
- CN106655727A CN106655727A CN201710067617.9A CN201710067617A CN106655727A CN 106655727 A CN106655727 A CN 106655727A CN 201710067617 A CN201710067617 A CN 201710067617A CN 106655727 A CN106655727 A CN 106655727A
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- Prior art keywords
- power consumption
- switching circuit
- bypass switching
- detection module
- voltage detection
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 239000004065 semiconductor Substances 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 7
- 238000003079 width control Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
-
- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention belongs to the field of switching circuits, and discloses a device for reducing the power consumption of a solar bypass switching circuit, and a method implemented by the device, which solve the technical problems of continuous power consumption, large power consumption and low reliability of a voltage detection module in the conventional bypass switching circuit. The device adopts the technical scheme that on the basis of the prior art, a time-sharing pulse generation circuit (206) and a PMOS transistor (M3) are additionally arranged in the bypass switching circuit. The PMOS transistor (M3) is controlled through a square signal, so that the working frequency of the voltage detection module is reduced, and the charging time of a capacitor (C1) is shortened. The device and the method provided by the invention are mainly used for improving the reliability and economical efficiency of a solar panel.
Description
Technical field
The present invention relates to on-off circuit field, and in particular to a kind of device of reduction solar energy bypass switching circuit power consumption and
Method.
Background technology
Solar panel is composed in series by multiple solar units, the string of each solar units or fixed qty
Receipts or other documents in duplicate unit needs a bypass diode in parallel, when corresponding solar units are blocked or damaged by cloud, foreign body, then the list
Unit will not produce electric energy, then the electric current that other units are produced can pass through from the bypass diode of occluded cell, thus will not
Because the situation generation that a unit damages to cause whole solar panel to work.But bypass diode has one and asks
Topic, when bypass diode uses Schottky diode, there is forward voltage drop in it, very big power consumption can be produced on the diode,
The temperature of bypass diode can be very high.Further prior art, then control Power MOS come generation using bypass switching circuit
For bypass diode.Bypass switching circuit generally comprises Power metal-oxide-semiconductor M1 and M2, agitator 101, charge pump 102, Yi Jiyi
The individual voltage detection module being made up of resistance R1, R2, comparator 104, reference circuit 103 and driver 105 is constituted.
Power consumption very little is produced on Power metal-oxide-semiconductor M1, can be so that the transformation efficiency of solar panels is improved, and reliability is carried so as to reduce temperature
It is high.
But such scheme is present in charge and discharge process, the voltage detection module of bypass switching circuit can continual damage
The energy of C1 is held in power consumption, increases the charging interval of electric capacity C1, increases power consumption, improves the technical problem of temperature.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of power consumption that can reduce solar energy bypass switching circuit, drop
The device of the low circuit temperature, described device is reached by the voltage detection module operating frequency of reduction bypass switching circuit
The charging interval of electric capacity C1 is reduced, the final power consumption for reducing solar energy bypass switching circuit, the purpose of the reduction circuit temperature.
To solve above-mentioned technical problem, the present invention program includes Power metal-oxide-semiconductor M1, the Power metal-oxide-semiconductors M1 drain electrodes
It is connected with Power metal-oxide-semiconductor M2, agitator 201, charge pump 202, electric capacity C1 in turn and source electrode between, and is connected to electric capacity C1
And the voltage detection module between the Power metal-oxide-semiconductors M1, it is characterised in that：Described device also includes that a timesharing pulse is produced
Raw circuit 206, timesharing pulse-generating circuit 206 is connected between agitator 201 and charge pump 202, and one is connected to electricity
Hold C1, PMOS M3 between the voltage detection module and the timesharing pulse-generating circuit 206.
Preferably, further, the voltage detection module includes resistance R1, the resistance R2 for once connecting, benchmark electricity
Road 203, comparator 204 and driver 205.
Further, the agitator 201 is pulse oscillator.
Further, the timesharing pulse-generating circuit 206 is the timesharing pulse-generating circuit for producing circulation square-wave signal.
Further, described device is used for solar panel.
The present invention also provides a kind of method of work of the device of reduction solar energy bypass switching circuit power consumption, including following step
Suddenly：
(1) voltage detection module detects the not enough power supply of electric capacity C1 to open during Power MOS M1, Power MOS
Pipe M2 is opened, the pulse signal that agitator 201 is produced, and sends into charge pump 202, and charge pump 202 works, filled to electric capacity C1
Electricity；
(2) pulse signal that the agitator 201 is produced is also fed into timesharing pulse-generating circuit 206 simultaneously, produces timesharing
Pulse Width Control PMOS M3；
(3) voltage detection module detects electric capacity C1 voltages when PMOS M3 is opened, and electric capacity C1 undertensions are opening
When opening Power metal-oxide-semiconductor M1, repeat step (1).
Preferably, further, the step (2) also includes：
When A, timesharing pulse signal are in low level, PMOS M3 is open-minded, the voltage detection module work；
When B, timesharing pulse signal are in high level, PMOS M3 shut-off, the voltage detection module does not work.
Further, the pulse signal that the agitator 201 is produced is the pulse signal of fixed frequency.
Further, the timesharing pulse signal that the timesharing pulse-generating circuit (206) produces is circulation square-wave signal.
The present invention such as Fig. 2 connects circuit diagram, and compared with prior art, the present invention adds timesharing arteries and veins in bypass switching circuit
Punching produces circuit 206 and PMOS M3.By arranging in the pulse signal a cycle that timesharing pulse-generating circuit 206 is produced
Low and high level ratio, can control the shut-off of PMOS M3 and the time ratios opened, and then can control the voltage detecting electricity
The working time frequency on road, reduces the power consumption of voltage detecting circuit.So as to obtain following technique effect：(1) bypass is reduced
On-off circuit power consumption；(2) temperature is reduced；(3) transformation efficiency of solar panels is improved；(4) reliability of solar panels is improved.
Description of the drawings
The device circuit figure of Fig. 1 prior arts
Fig. 2 apparatus of the present invention circuit diagrams
The cycle timing diagram of Fig. 3 apparatus of the present invention pulse signals
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Embodiment 1
Apparatus of the present invention circuit diagram such as Fig. 2, it increased one on the basis of the evolutionary approach of prior art, in circuit
Individual timesharing pulse-generating circuit 206 and PMOS M3.Timesharing pulse-generating circuit 206 is connected to agitator 201 and electric charge
Between pump 202, and one is connected between electric capacity C1, the voltage detection module and the timesharing pulse-generating circuit 206
PMOS M3.
The voltage detection module includes the resistance R1, the resistance R2 that are sequentially connected, reference circuit 203, comparator 204 and
Driver 205.The agitator 201 is pulse oscillator.The timesharing pulse-generating circuit 206 is to produce circulation square-wave signal
Timesharing pulse-generating circuit.Described device is used for solar panel.
The method of work of the present embodiment described device is comprised the following steps：
(1) voltage detection module detects the not enough power supply of electric capacity C1 to open during Power MOS M1, Power MOS
Pipe M2 is opened, the pulse signal that agitator 201 is produced, and sends into charge pump 202, and charge pump 202 works, filled to electric capacity C1
Electricity；
(2) pulse signal that the agitator 201 is produced is also fed into timesharing pulse-generating circuit 206 simultaneously, produces timesharing
Pulse Width Control PMOS M3, when timesharing pulse signal is in low level, PMOS M3 is open-minded, the voltage detection module work；
When timesharing pulse signal is in high level, PMOS M3 shut-off, the voltage detection module does not work；
(3) voltage detection module detects electric capacity C1 voltages when PMOS M3 is opened, and electric capacity C1 undertensions are opening
When opening Power metal-oxide-semiconductor M1, repeat step (1).
Timesharing pulse signal be a cycle be T circulation square-wave signal, sequential chart such as Fig. 3.High level time in cycle T
PMOS M3 is opened in Toff in shut-off PMOS M3, low level time Ton, voltage detection module work detects electric capacity C1's
Can voltage vcc open Power metal-oxide-semiconductor M1.
Power consumption after the voltage detection module is reduced is I=Icc × Ton/ (Ton+Toff).Wherein Icc is voltage inspection
The quiescent current of module is surveyed, Ton and Toff is respectively the low level time and high level time of pulse signal a cycle T.This
Invention adopts high level time Ton=T/10, low level time Toff=9T/10.Then voltage detection module disappears in bypass circuit
The lower power consumption of consumption is I=Icc × Ton/ (Ton+Toff)=0.1Icc.Charge pump (202) is constant to the charging current of C1, electricity
The power consumption of pressure detection module is just reduced to 1/10 of voltage detection module power consumption in prior art evolutionary approach.
The pulse signal that the agitator 201 is produced is the pulse signal of fixed frequency.The timesharing pulse-generating circuit
The 206 timesharing pulse signals for producing are circulation square-wave signals.
Said apparatus can substitute bypass diode for solar panel.When some unit of solar panel
Be blocked, do not produce electric energy, other unit normal work, then electric current will by being passed through by the said apparatus of gear unit, and
It is not to consume in the impedance that the unit is produced, so that it is guaranteed that solar panel remains able to export electric energy.
Embodiment 2
The present embodiment further illustrates high level and low level in timesharing pulse signal cycle T on the basis of embodiment 1
Impact of the accounting of time to voltage detection module power consumption in bypass switching circuit.
The present invention adopts the cycle for the circulation square-wave signal of T, its high level time Ton=T/20, low level time Toff
=19T/20.Then in bypass circuit voltage detection module consume lower power consumption be I=Icc × Ton/ (Ton+Toff)=
0.05Icc.Charge pump 202 is constant to the charging current of C1, and the power consumption of voltage detection module is just reduced in prior art
The 1/20 of voltage detection module power consumption.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of device for reducing solar energy bypass switching circuit power consumption, including Power metal-oxide-semiconductors (M1), the Power MOS
Power metal-oxide-semiconductors (M2), agitator (201), charge pump (202), electric capacity are connected with turn between pipe (M1) drain electrode and source electrode
, and the voltage detection module that is connected between electric capacity (C1) and the Power metal-oxide-semiconductors (M1) (C1), it is characterised in that：Institute
Stating device also includes a timesharing pulse-generating circuit (206), and timesharing pulse-generating circuit (206) is connected to agitator (201)
And charge pump (202) between, and one is connected to electric capacity (C1), the voltage detection module and timesharing pulses generation electricity
PMOS (M3) between road (206).
2. it is according to claim 1 it is a kind of reduce solar energy bypass switching circuit power consumption device, it is characterised in that：It is described
Voltage detection module includes resistance (R1), the resistance (R2) being sequentially connected, reference circuit (203), comparator (204) and driving
Device (205).
3. it is according to claim 1 it is a kind of reduce solar energy bypass switching circuit power consumption device, it is characterised in that：It is described
Agitator (201) is pulse oscillator.
4. it is according to claim 1 it is a kind of reduce solar energy bypass switching circuit power consumption device, it is characterised in that：It is described
Timesharing pulse-generating circuit (206) is the circuit that control produces high-low level time ratio in pulse signal cycle.
5. any one according to claim 1-4 reduces the work side of the device of solar energy bypass switching circuit power consumption
Method, it is characterised in that：Described device is used for solar panel.
6. any one according to claim 1-4 reduces the work side of the device of solar energy bypass switching circuit power consumption
Method, it is characterised in that：Comprise the following steps：
(1) voltage detection module detects the not enough power supply of electric capacity (C1) to open during Power metal-oxide-semiconductors (M1), Power
Metal-oxide-semiconductor (M2) is opened, the pulse signal that agitator (201) is produced, and sends into charge pump (202), then charge pump (202) work, gives
Electric capacity (C1) is charged；
(2) pulse signal that the agitator (201) produces is also fed into timesharing pulse-generating circuit (206) simultaneously, produces timesharing
Pulse Width Control PMOS (M3)；
(3) voltage detection module detects electric capacity (C1) voltage when PMOS (M3) is opened, electric capacity (C1) undertension with
When opening Power metal-oxide-semiconductors (M1), repeat step (1).
7. the method for work of a kind of device for reducing solar energy bypass switching circuit power consumption according to claim 6, it is special
Levying is：The step (2) also includes：
When A, timesharing pulse signal are in low level, PMOS (M3) is open-minded, the voltage detection module work；
When B, timesharing pulse signal are in high level, PMOS (M3) shut-off, the voltage detection module does not work.
8. the method for work of a kind of device for reducing solar energy bypass switching circuit power consumption according to claim 6, it is special
Levying is：The pulse signal that the agitator (201) produces is the pulse signal of fixed frequency.
9. the method for work of a kind of device for reducing solar energy bypass switching circuit power consumption according to claim 6, it is special
Levying is：The timesharing pulse signal that the timesharing pulse-generating circuit (206) produces is circulation square-wave signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067617.9A CN106655727B (en) | 2017-02-07 | 2017-02-07 | Device and method for reducing power consumption of solar bypass switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067617.9A CN106655727B (en) | 2017-02-07 | 2017-02-07 | Device and method for reducing power consumption of solar bypass switch circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106655727A true CN106655727A (en) | 2017-05-10 |
| CN106655727B CN106655727B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710067617.9A Active CN106655727B (en) | 2017-02-07 | 2017-02-07 | Device and method for reducing power consumption of solar bypass switch circuit |
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| Country | Link |
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| CN (1) | CN106655727B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426866A (en) * | 2019-01-10 | 2020-07-17 | 新唐科技股份有限公司 | Voltage monitoring system and method thereof |
| CN115967346A (en) * | 2023-01-13 | 2023-04-14 | 北京风雷寰宇空调设备有限公司 | Detachable junction box of solar cell module and circuit thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090014050A1 (en) * | 2007-07-13 | 2009-01-15 | Peter Haaf | Solar module system and method using transistors for bypass |
| CN102916056A (en) * | 2012-09-25 | 2013-02-06 | 谢可勋 | Solar battery pack protection circuit, solar junction box and solar power generation system |
| CN105119485A (en) * | 2015-09-06 | 2015-12-02 | 北京兆易创新科技股份有限公司 | Charge pump circuit |
| CN206517288U (en) * | 2017-02-07 | 2017-09-22 | 苏州锴威特半导体有限公司 | It is a kind of to reduce the device of solar energy bypass switching circuit power consumption |
-
2017
- 2017-02-07 CN CN201710067617.9A patent/CN106655727B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090014050A1 (en) * | 2007-07-13 | 2009-01-15 | Peter Haaf | Solar module system and method using transistors for bypass |
| CN102916056A (en) * | 2012-09-25 | 2013-02-06 | 谢可勋 | Solar battery pack protection circuit, solar junction box and solar power generation system |
| CN105119485A (en) * | 2015-09-06 | 2015-12-02 | 北京兆易创新科技股份有限公司 | Charge pump circuit |
| CN206517288U (en) * | 2017-02-07 | 2017-09-22 | 苏州锴威特半导体有限公司 | It is a kind of to reduce the device of solar energy bypass switching circuit power consumption |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426866A (en) * | 2019-01-10 | 2020-07-17 | 新唐科技股份有限公司 | Voltage monitoring system and method thereof |
| CN115967346A (en) * | 2023-01-13 | 2023-04-14 | 北京风雷寰宇空调设备有限公司 | Detachable junction box of solar cell module and circuit thereof |
| CN115967346B (en) * | 2023-01-13 | 2024-04-09 | 合肥仙湖半导体科技有限公司 | Solar cell module detachable junction box and circuit thereof |
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| Publication number | Publication date |
|---|---|
| CN106655727B (en) | 2023-11-10 |
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Address after: Room 01, Building B2, Shazhouhu Science Park, No. 10, Huachang Road, Yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province 215600 Applicant after: Suzhou Covette Semiconductor Co.,Ltd. Address before: No. 511, Building B, Zhangjiagang Science and Technology Entrepreneurship Park, No.1 Guotai North Road, Zhangjiagang Economic Development Zone, Suzhou City, Jiangsu Province, 215600 Applicant before: SUZHOU KAIWEITE SEMICONDUCTOR CO.,LTD. |
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