CN103633704B - Prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency - Google Patents
Prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency Download PDFInfo
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- CN103633704B CN103633704B CN201310663666.0A CN201310663666A CN103633704B CN 103633704 B CN103633704 B CN 103633704B CN 201310663666 A CN201310663666 A CN 201310663666A CN 103633704 B CN103633704 B CN 103633704B
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- relay
- diode
- photovoltaic charged
- reversal connection
- prevent
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of photovoltaic charged circuit preventing PV reversal connection and improve charge efficiency, it is characterized in that: in described photovoltaic charged circuit, be serially connected with in parallel the diode D1 and the relay K 1 that prevent PV reversal connection.Due to the version of the diode D1 and relay K 1 that adopt above-mentioned parallel connection, when at night or cloudy day time, photovoltaic charged power lower than preset charge power value time, relay K 1 disconnects, make electric current from diode D1 process, thus the problem preventing relay frequently to switch; When becoming a fine day, when photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit, doing so avoids the problem of diode losses under high-power state, improves charge efficiency simultaneously.
Description
Technical field
The present invention relates to a kind of charging circuit technical field, specifically a kind of photovoltaic charged circuit preventing PV reversal connection.
Background technology
Solar charger needs anti-reverse function, needs to add counnter attack diode in porch, and when charge power is very large, counnter attack diode losses also increases, and needing on the one hand increases heat radiation cost, greatly reduces the efficiency of solar charger on the other hand; Independent employing relay, when when low-power, solar charger judges that inadequate energy charges, charger is by block system relay, and after block system relay, PV voltage raises, and charger is attracting electric relay again, reworks, and the work gone round and begun again like this is not until PV has electricity.Present invention, avoiding the relay when low-power frequently to switch, it also avoid the problem of diode losses under high-power state.
Summary of the invention
The object of this invention is to provide a kind of photovoltaic charged circuit preventing PV reversal connection and raising charge efficiency preventing relay frequently to switch.
For achieving the above object, the technical solution adopted in the present invention is:
Prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency, it is characterized in that: in described photovoltaic charged circuit, be serially connected with in parallel the diode D1 and the relay K 1 that prevent PV reversal connection.
Described relay K 1, in order to arrange default charge power value, when when becoming a fine day, when photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit; When at night or cloudy day time, photovoltaic charged power lower than preset charge power value time, relay K 1 disconnects, and electric current is passed through from diode D1.
Beneficial effect of the present invention: due to the version of the diode D1 and relay K 1 that adopt above-mentioned parallel connection, when at night or cloudy day time, when photovoltaic charged power is lower than the charge power value preset, relay K 1 disconnects, make electric current from diode D1 process, thus the problem preventing relay frequently to switch; When becoming a fine day, when photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit, doing so avoids the problem of diode losses under high-power state, improves charge efficiency simultaneously.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is electrical schematic diagram of the present invention.
Embodiment
As shown in Figure 1, prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency, in described photovoltaic charged circuit, be serially connected with in parallel the diode D1 and the relay K 1 that prevent PV reversal connection.
Described relay K 1, in order to arrange default charge power value, when when becoming a fine day, when photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit; When at night or cloudy day time, photovoltaic charged power lower than preset charge power value time, relay K 1 disconnects, and electric current is passed through from diode D1.
The above is the preferred embodiment of the present invention; certainly the interest field of the present invention can not be limited with this; should be understood that; for those skilled in the art; technical scheme of the present invention is modified or equivalent replacement, do not depart from the protection range of technical solution of the present invention.
Claims (1)
1. prevent a photovoltaic charged circuit for PV reversal connection and raising charge efficiency, it is characterized in that: in described photovoltaic charged circuit, be serially connected with in parallel the diode D1 and the relay K 1 that prevent PV reversal connection;
Described relay K 1, in order to arrange default charge power value, when when becoming a fine day, when photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit; When at night or cloudy day time, photovoltaic charged power lower than preset charge power value time, relay K 1 disconnects, and electric current is passed through from diode D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310663666.0A CN103633704B (en) | 2013-12-10 | 2013-12-10 | Prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310663666.0A CN103633704B (en) | 2013-12-10 | 2013-12-10 | Prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103633704A CN103633704A (en) | 2014-03-12 |
| CN103633704B true CN103633704B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310663666.0A Active CN103633704B (en) | 2013-12-10 | 2013-12-10 | Prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency |
Country Status (1)
| Country | Link |
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| CN (1) | CN103633704B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114002612A (en) * | 2021-10-26 | 2022-02-01 | 珠海格力电器股份有限公司 | Reverse connection detection circuit and method and power supply system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201393327Y (en) * | 2009-04-23 | 2010-01-27 | 青海新能源(集团)有限公司 | Commercial power supplementing type photovoltaic double-line illumination controlling device in extremely cold area |
| CN102756655A (en) * | 2012-07-11 | 2012-10-31 | 合肥华耀电子工业有限公司 | Novel input reverse-connection-preventing circuit |
| CN203787982U (en) * | 2013-12-10 | 2014-08-20 | 惠州天能源科技有限公司 | Photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency |
-
2013
- 2013-12-10 CN CN201310663666.0A patent/CN103633704B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201393327Y (en) * | 2009-04-23 | 2010-01-27 | 青海新能源(集团)有限公司 | Commercial power supplementing type photovoltaic double-line illumination controlling device in extremely cold area |
| CN102756655A (en) * | 2012-07-11 | 2012-10-31 | 合肥华耀电子工业有限公司 | Novel input reverse-connection-preventing circuit |
| CN203787982U (en) * | 2013-12-10 | 2014-08-20 | 惠州天能源科技有限公司 | Photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103633704A (en) | 2014-03-12 |
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Free format text: FORMER OWNER: TIANBAO ELECTRONIC (HUIZHOU) CO., LTD. Effective date: 20150518 |
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Effective date of registration: 20150518 Address after: 516005 Dongjiang Industrial Zone, Shuikou subdistrict, Huicheng District, Guangdong, Huizhou Applicant after: HUIZHOU TEN SOURCES SOLAR ELECTRICITY LIMITED Address before: 516005 Dongjiang Industrial Zone, Shuikou subdistrict, Huicheng District, Guangdong, Huizhou Applicant before: HUIZHOU TEN SOURCES SOLAR ELECTRICITY LIMITED Applicant before: Ten Pao Electronics (Huizhou) Co., Ltd. |
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