CN102545595A - Power switching circuit of PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking)-type solar charging controller - Google Patents
Power switching circuit of PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking)-type solar charging controller Download PDFInfo
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- CN102545595A CN102545595A CN2010106072382A CN201010607238A CN102545595A CN 102545595 A CN102545595 A CN 102545595A CN 2010106072382 A CN2010106072382 A CN 2010106072382A CN 201010607238 A CN201010607238 A CN 201010607238A CN 102545595 A CN102545595 A CN 102545595A
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Abstract
The invention relates to a power switching circuit of a PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking)-type solar charging controller. The PSoC-based power switching circuit is provided with a diode D1, a diode D2, a diode D3, a power switching chip U1, a power switching chip U2, a power switching chip U3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a resistor R1 and a resistor R2. The power switching circuit of the PSoC-based MPPT (Maximum Power Point Tracking)-type solar charging controller, disclosed by the invention, can provide three kinds of voltages, such as VDD1, VDD2 and VDD3 and is suitable for requirement of the PSoC-based MPPT-type solar charging controller.
Description
Technical field
The present invention relates to the solar charging controller technology, particularly relate to a kind of power-switching circuit of the MPPT type solar charging controller based on PSoC.
Background technology
Solar energy has environmental protection, good characteristic such as pollution-free, becomes the direction of modern society's energy development.In heliotechnics, one of most important technology is exactly a solar charging controller.
In the prior art, a lot of solar charging controllers are arranged on the market, but all come with some shortcomings; The solar charging controller of some simple types is after storage battery is full of; Be the protection storage battery, the both positive and negative polarity of solar panel is carried out short circuit, can cause the joint temperature of solar panel array too high like this; Damage solar panel easily, the useful life of reducing solar panel.Part solar charging controller does not have maximum power electric tracing (MPPT) function of solar cell, causes the energy conversion efficiency (generated output) of solar panel to can not get effective raising.Also there is solar charging controller all to adopt microcontroller and peripheral discrete component to constitute; Cause the circuit system complex structure; Simultaneously, signal conditioning circuit all is to be realized by the discrete circuit of periphery, discrete component exist consistency relatively poor, exist temperature to float shortcomings such as bigger.
Not enough to prior art, not enough based on the MPPT type solar charging controller of PSoC to solve prior art, so provide the supporting suitable power-switching circuit of MPPT type solar charging controller a kind of and very necessary based on PSoC.
Summary of the invention
The objective of the invention is to avoid the weak point of prior art and a kind of power-switching circuit of the MPPT type solar charging controller based on PSoC is provided; This power-switching circuit can provide VDD1, VDD2 and three kinds of voltages of VDD3, is adapted to the power-switching circuit based on the MPPT type solar charging controller of PSoC.
The object of the invention is realized through following technical measures.
A kind of power-switching circuit of the MPPT type solar charging controller based on PSoC is provided with diode D1, diode D2, diode D3, power conversion chip U1, power conversion chip U2, power conversion chip U3, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6, resistance R 1 and resistance R 2;
Diode D1 is anodal to be connected with BAT+; Diode D1 negative pole, diode D2 negative pole, capacitor C 1 positive pole are connected with the Vin pin of power conversion chip U1, and the Vout pin of power conversion chip U1, diode D2 positive pole, diode D3 negative pole, an end of resistance R 1, the positive pole of capacitor C 3, the Vin pin of power conversion chip U2 are connected with VDD1;
The positive pole of the adj pin of power conversion chip U1, the positive pole of capacitor C 2, diode D3, the other end of resistance R 1 are connected with an end of resistance R 2;
The Vin pin of the Vout pin of power conversion chip U2, the positive pole of capacitor C 4, power conversion chip U3 is connected with VDD2;
One end of the Vout pin of power conversion chip U3, the positive pole of capacitor C 5, capacitor C 6 is connected with VDD3;
The other end ground connection of the negative pole of the negative pole of the negative pole of the negative pole of the negative pole of the other end of resistance R 2, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5 and capacitor C 6.
The model of said power conversion chip U1 is LM317.
The model of said power conversion chip U2 is 78M08.
The model of said power conversion chip U3 is 78M05.
Said electric C1 is 47uF, 100V.
Said electric C2 is 47uF, 100V.
Said electric C3 is 47uF, 100V.
Said electric C4 is 22uF, 100V.
Said electric C5 is 10uF, 100V.
The model of said diode D1 is GS1M, and the model of said diode D2 is GS1M.
The power-switching circuit of a kind of MPPT type solar charging controller based on PSoC of the present invention is provided with diode D1, diode D2, diode D3, power conversion chip U1, power conversion chip U2, power conversion chip U3, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6, resistance R 1 and resistance R 2; Diode D1 is anodal to be connected with BAT+; Diode D1 negative pole, diode D2 negative pole, capacitor C 1 positive pole are connected with the Vin pin of power conversion chip U1, and the Vout pin of power conversion chip U1, diode D2 positive pole, diode D3 negative pole, an end of resistance R 1, the positive pole of capacitor C 3, the Vin pin of power conversion chip U2 are connected with VDD1; The positive pole of the adj pin of power conversion chip U1, the positive pole of capacitor C 2, diode D3, the other end of resistance R 1 are connected with an end of resistance R 2; The Vin pin of the Vout pin of power conversion chip U2, the positive pole of capacitor C 4, power conversion chip U3 is connected with VDD2; One end of the Vout pin of power conversion chip U3, the positive pole of capacitor C 5, capacitor C 6 is connected with VDD3; The other end ground connection of the negative pole of the negative pole of the negative pole of the negative pole of the negative pole of the other end of resistance R 2, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5 and capacitor C 6.The power-switching circuit of the MPPT type solar charging controller based on PSoC of the present invention can provide VDD1, VDD2 and three kinds of voltages of VDD3, is adapted to the needs based on the MPPT type solar charging controller of PSoC.
Description of drawings
Utilize accompanying drawing that the present invention is further described, but the content in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is the power-switching circuit circuit diagram of a kind of MPPT type solar charging controller based on PSoC of the present invention.
Embodiment
In conjunction with following examples the present invention is further described.
See Fig. 1; A kind of power-switching circuit of the MPPT type solar charging controller based on PSoC is provided with diode D1, diode D2, diode D3, power conversion chip U1, power conversion chip U2, power conversion chip U3, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6, resistance R 1 and resistance R 2;
Diode D1 is anodal to be connected with BAT+; Diode D1 negative pole, diode D2 negative pole, capacitor C 1 positive pole are connected with the Vin pin of power conversion chip U1, and the Vout pin of power conversion chip U1, diode D2 positive pole, diode D3 negative pole, an end of resistance R 1, the positive pole of capacitor C 3, the Vin pin of power conversion chip U2 are connected with VDD1;
The positive pole of the adj pin of power conversion chip U1, the positive pole of capacitor C 2, diode D3, the other end of resistance R 1 are connected with an end of resistance R 2;
The Vin pin of the Vout pin of power conversion chip U2, the positive pole of capacitor C 4, power conversion chip U3 is connected with VDD2;
One end of the Vout pin of power conversion chip U3, the positive pole of capacitor C 5, capacitor C 6 is connected with VDD3;
The other end ground connection of the negative pole of the negative pole of the negative pole of the negative pole of the negative pole of the other end of resistance R 2, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5 and capacitor C 6.
The model of said power conversion chip U1 is LM317.
The model of said power conversion chip U2 is 78M08.
The model of said power conversion chip U3 is 78M05.
Said electric C1 is 47uF, 100V.
Said electric C2 is 47uF, 100V.
Said electric C3 is 47uF, 100V.
Said electric C4 is 22uF, 100V.
Said electric C5 is 10uF, 100V.
The model of said diode D1 is GS1M, and the model of said diode D2 is GS1M.
The power-switching circuit of a kind of MPPT type solar charging controller based on PSoC of the present invention; By storage battery power supply, adopt three grades of step-down modes, battery tension is through power conversion chip U1, U2, U3 step by step after the step-down; Produce voltage VDD1, VDD2 and VDD3 respectively; VDD1 is 12V, and VDD2 is 8V, and VDD3 is 5V.VDD1 is the power termination loop power supply based on the MPPT type solar charging controller of PSoC; VDD2 is the PWM drive circuitry based on the MPPT type solar charging controller of PSoC; VDD3 is the power supply of PSoC central processing unit; So the present invention can satisfy the power demands based on the MPPT type solar charging controller of PSoC.
Should be noted that at last; Above embodiment is only in order to technical scheme of the present invention to be described but not to the restriction of protection range of the present invention; Although the present invention has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the essence and the scope of technical scheme of the present invention.
Claims (10)
1. the power-switching circuit based on the MPPT type solar charging controller of PSoC is characterized in that: be provided with diode D1, diode D2, diode D3, power conversion chip U1, power conversion chip U2, power conversion chip U3, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6, resistance R 1 and resistance R 2;
Diode D1 is anodal to be connected with BAT+; Diode D1 negative pole, diode D2 negative pole, capacitor C 1 positive pole are connected with the Vin pin of power conversion chip U1, and the Vout pin of power conversion chip U1, diode D2 positive pole, diode D3 negative pole, an end of resistance R 1, the positive pole of capacitor C 3, the Vin pin of power conversion chip U2 are connected with VDD1;
The positive pole of the adj pin of power conversion chip U1, the positive pole of capacitor C 2, diode D3, the other end of resistance R 1 are connected with an end of resistance R 2;
The Vin pin of the Vout pin of power conversion chip U2, the positive pole of capacitor C 4, power conversion chip U3 is connected with VDD2;
One end of the Vout pin of power conversion chip U3, the positive pole of capacitor C 5, capacitor C 6 is connected with VDD3;
The other end ground connection of the negative pole of the negative pole of the negative pole of the negative pole of the negative pole of the other end of resistance R 2, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5 and capacitor C 6.
2. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: described model based on power conversion chip U1 is LM317.
3. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: the model of said power conversion chip U2 is 78M08.
4. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: the model of said power conversion chip U3 is 78M05.
5. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: said electric C1 is 47uF, 100V.
6. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: said electric C2 is 47uF, 100V.
7. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: said electric C3 is 47uF, 100V.
8. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: said electric C4 is 22uF, 100V.
9. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: said electric C5 is 10uF, 100V.
10. the power-switching circuit of the MPPT type solar charging controller based on PSoC according to claim 1, it is characterized in that: the model of said diode D1 is GS1M, the model of said diode D2 is GS1M.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106072382A CN102545595A (en) | 2010-12-27 | 2010-12-27 | Power switching circuit of PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking)-type solar charging controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106072382A CN102545595A (en) | 2010-12-27 | 2010-12-27 | Power switching circuit of PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking)-type solar charging controller |
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| CN102545595A true CN102545595A (en) | 2012-07-04 |
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| CN2010106072382A Pending CN102545595A (en) | 2010-12-27 | 2010-12-27 | Power switching circuit of PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking)-type solar charging controller |
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Citations (4)
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|---|---|---|---|---|
| US6252783B1 (en) * | 1999-04-10 | 2001-06-26 | Fairchild Korea Semiconductor Ltd. | Switching power supply having a low power burst mode |
| CN2550945Y (en) * | 2002-05-13 | 2003-05-14 | 中国人民解放军军事医学科学院卫生装备研究所 | Multiple input and output power source |
| CN101505565A (en) * | 2009-03-11 | 2009-08-12 | 华中科技大学 | SoC chip for independent photovoltaic LED lighting special controller |
| CN201947173U (en) * | 2010-12-27 | 2011-08-24 | 广东易事特电源股份有限公司 | Power supply switching circuit of MPPT (maximum power point tracking) type solar charge controller based on PSoC (programmable system-on-chip) |
-
2010
- 2010-12-27 CN CN2010106072382A patent/CN102545595A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6252783B1 (en) * | 1999-04-10 | 2001-06-26 | Fairchild Korea Semiconductor Ltd. | Switching power supply having a low power burst mode |
| CN2550945Y (en) * | 2002-05-13 | 2003-05-14 | 中国人民解放军军事医学科学院卫生装备研究所 | Multiple input and output power source |
| CN101505565A (en) * | 2009-03-11 | 2009-08-12 | 华中科技大学 | SoC chip for independent photovoltaic LED lighting special controller |
| CN201947173U (en) * | 2010-12-27 | 2011-08-24 | 广东易事特电源股份有限公司 | Power supply switching circuit of MPPT (maximum power point tracking) type solar charge controller based on PSoC (programmable system-on-chip) |
Non-Patent Citations (3)
| Title |
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| FAIRCHILDSEMICONDUCTOR: "MC78MXX/LM78MXX 3-Terminal 0.5A Positive Voltage Regulator", 《FAIRCHILD SEMICONDUCTOR》, 31 December 2002 (2002-12-31) * |
| TOSHIBA: "TA78M05,06,08~10,12,15,18,20,24F", 《TOSHIBA》, 15 October 1999 (1999-10-15) * |
| 安森美半导体: "三端可调节输出正电压稳压器", 《安森美半导体模拟集成电路器件数据》, 31 December 2000 (2000-12-31) * |
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Application publication date: 20120704 |