CN201438681U - Intelligent controller for solar power supplies - Google Patents
Intelligent controller for solar power supplies Download PDFInfo
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- CN201438681U CN201438681U CN 200920060074 CN200920060074U CN201438681U CN 201438681 U CN201438681 U CN 201438681U CN 200920060074 CN200920060074 CN 200920060074 CN 200920060074 U CN200920060074 U CN 200920060074U CN 201438681 U CN201438681 U CN 201438681U
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- over connection
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Abstract
The utility model discloses an intelligent controller for solar power supplies. The controller comprises an anti-lightning circuit, a common-mode inductor, a filter circuit and a DC/DC conversion circuit. The controller has the following characteristics: the anti-lightning circuit comprises a first anti-lightning circuit, which is arranged between the common-mode inductor and the filter circuit, a common-mode protection circuit is connected in parallel with a differential-mode protection circuit to form the first anti-lightning circuit, wherein the common-mode protection circuit consists of a first piezoresistor (RV1) connected between the anode of a power supply and an earth wire and a second piezoresistor (RV2) connected between the cathode of the power supply and the earth wire, and the differential-mode protection circuit consists of a third piezoresistor (RV3) connected between the anode and the cathode of the power supply. The controller can prevent the common-mode voltage produced by lightning from harming communication equipment.
Description
Technical field
The utility model relates to the device that light-sensitive cell is used for batteries charging, is specifically related to the control device of solar energy to charge in batteries.
Background technology
A lot of in the area that China's thunderbolt is frequent, the general decorating position of light-sensitive cell (being commonly called as the solar cell photoelectric plate) cause thunderbolt easily, so lightning protection measures is very important for the safety that guarantees power consumption equipment and power supply self all at higher and opening.The piezo-resistance that absorbs the thunderbolt energy in the controller for solar on the present market is located at the input of the common mode inductance that is connected with light-sensitive cell, and only have and be connected across the piezo-resistance of power supply between positive and negative and constitute, so following deficiency of ubiquity: 1, set piezo-resistance can only absorb the differential mode voltage that thunderbolt produces, and common-mode voltage only relies on common mode inductance to suppress, so the relatively low common-mode voltage of frequency is easy to enter system and damages power supply and power consumption equipment; 2, piezo-resistance is located at the input of common mode inductance, and common-mode voltage and differential mode voltage that thunderbolt is produced all directly are carried on the piezo-resistance, quicken its oxidation, and the life-span obviously shortens.
Summary of the invention
In view of there is above-mentioned deficiency in prior art, technical problem to be solved in the utility model is to improve the technique effect of the anti-thunderbolt of power supply.
The technical scheme that the utility model addresses the above problem is as follows:
A kind of sun-generated electric power intelligent controller; this controller comprises lightning protection circuit, common mode inductance, filter circuit and DC/DC translation circuit; it is characterized in that; described lightning protection circuit comprises lightning protection circuit one time; this circuit is located between common mode inductance and the filter circuit; it is composed in parallel by common mode protective circuit and differential mode protective circuit, wherein
Described common mode protective circuit by cross-over connection in first piezo-resistance between positive source and the ground wire and cross-over connection second piezo-resistance between power cathode and ground wire form;
Described differential mode protective circuit is made of the 3rd piezo-resistance of cross-over connection between positive source and power cathode.
Sun-generated electric power intelligent controller described in the utility model, wherein said lightning protection circuit also comprises the secondary lightning protection circuit, this circuit is located at described DC/DC translation circuit output, it is composed in parallel by secondary common mode protective circuit and secondary differential mode protective circuit, wherein, described secondary common mode protective circuit is made up of in the negative pole of the output of DC/DC translation circuit and the 5th piezo-resistance between the ground wire with the 4th piezo-resistance between the ground wire and cross-over connection in the positive pole of the output of DC/DC translation circuit cross-over connection; Described secondary differential mode protective circuit is made of in the positive pole of the output of DC/DC translation circuit and the 6th piezo-resistance between the negative pole cross-over connection.
Sun-generated electric power intelligent controller described in the utility model, also be provided with common mode-differential mode high-frequency filter circuit between a wherein said lightning protection circuit and the common mode inductance, this circuit is composed in parallel by common mode high-frequency filter circuit and differential mode high-frequency filter circuit, wherein, described common mode high-frequency filter circuit by cross-over connection in first high frequency capacitance between positive source and the ground wire and cross-over connection second high frequency capacitance between power cathode and ground wire form; Described differential mode high-frequency filter circuit is made of the 3rd high frequency capacitance of cross-over connection between positive source and power cathode.
Sun-generated electric power intelligent controller described in the utility model has following significant effect than prior art:
1, lightning protection circuit is located in the filter circuit after the common mode inductance; after being weakened by common mode inductance earlier, the transient state common-mode voltage that allows thunderbolt be produced absorbs by a lightning protection circuit again; thereby the peak current that flows through a lightning protection circuit is significantly reduced; both bring into play the protective effect of a lightning protection circuit, prolonged the life-span of the piezo-resistance that constitutes a lightning protection circuit again.
2, a common mode protective circuit in parallel on the basis of differential mode protective circuit, this circuit can absorb the common-mode voltage that is imported into by cable effectively, the common-mode voltage that the produced harm to communication apparatus of avoiding being struck by lightning.
3, improvement project of the present utility model is provided with the secondary lightning protection circuit at DC/DC translation circuit output, has further improved the safe class of protection communication apparatus.
4, further improvement of the utility model scheme, in described filter circuit, between common mode inductance and a lightning protection circuit common mode-differential mode high-frequency filter circuit is set, make the direct shorted to earth of high-frequency current, both improved power quality, can avoid the infringement of high-frequency current again the piezo-resistance that constitutes a lightning protection circuit.
Description of drawings
Fig. 1 is the theory diagram of a specific embodiment of sun-generated electric power intelligent controller described in the utility model.
Fig. 2 is the electrical schematic diagram of a specific embodiment of common mode inductance described in the utility model, common mode-differential mode high-frequency filter circuit, lightning protection circuit and filter circuit.
Fig. 3 is the electrical schematic diagram of a specific embodiment of DC/DC translation circuit described in the utility model.
Fig. 4 is the electrical schematic diagram of secondary lightning protection circuit described in the utility model.
Embodiment
As shown in Figure 1, whole sun-generated electric power intelligent controller is connected to form successively by common mode inductance, common mode-differential mode high-frequency filter circuit, lightning protection circuit, filter circuit, DC/DC translation circuit and a secondary lightning protection circuit.
Referring to Fig. 2, described common mode inductance L1 is for being wound on the four end member spares that two coils of a magnetic core constitute in the same way, and its input INPUT+ is connected with the output of INPUT-difference light-sensitive cell (being commonly called as solar panel); Described common mode-differential mode high-frequency filter circuit, compose in parallel by common mode high-frequency filter circuit and differential mode high-frequency filter circuit, wherein, the second high frequency capacitance C3 between power cathode and ground wire forms the common mode high-frequency filter circuit in first high frequency capacitance C2 between positive source and the ground wire and cross-over connection by cross-over connection; Described differential mode high-frequency filter circuit is made of the 3rd high frequency capacitance C1 of cross-over connection between positive source and power cathode; A described lightning protection circuit is composed in parallel by common mode protective circuit and differential mode protective circuit, wherein, the second piezo-resistance RV2 between power cathode and ground wire forms the common mode protective circuit in first piezo-resistance RV1 between positive source and the ground wire and cross-over connection by cross-over connection, and described differential mode protective circuit is made of the 3rd piezo-resistance RV3 of cross-over connection between positive source and power cathode; Described filter circuit is composed in parallel by electrochemical capacitor CD1～CD3 and ceramic disc capacitor C4.
Referring to Fig. 3, described DC/DC translation circuit mainly is made up of the electrochemical capacitor CD5 that is located at field effect transistor Q and be located at pwm signal generator on its grid, be serially connected in the inductance L 2 in its drain electrode and be connected in parallel on output, wherein said pwm signal generator can be special-purpose PWM chip, also can conventional single-chip microcomputer.In order to protect the safety of field effect transistor Q; cross-over connection has by the spike that constitutes of connecting of resistance R 1, capacitor C 5 and absorbs circuit between the drain electrode of field effect transistor Q and the source electrode; be parallel with the spike that constitutes by connecting between the drain electrode of field effect transistor Q and the power cathode and absorb circuit, also be parallel with the double diode D of clamped effect between the drain electrode of field effect transistor Q and the power cathode by resistance R 2, capacitor C 6.
Referring to Fig. 4; the version of described described secondary lightning protection circuit is identical with an above-mentioned lightning protection circuit; also be to compose in parallel by common mode protective circuit and differential mode protective circuit; wherein; the 5th piezo-resistance RV5 between power cathode and ground wire forms the common mode protective circuit in the 4th piezo-resistance RV4 between positive source and the ground wire and cross-over connection by cross-over connection, and described differential mode protective circuit is made of the 6th piezo-resistance RV3 of cross-over connection between positive source and power cathode.
Claims (3)
1. sun-generated electric power intelligent controller; this controller comprises lightning protection circuit, common mode inductance, filter circuit and DC/DC translation circuit; it is characterized in that; described lightning protection circuit comprises lightning protection circuit one time; this circuit is located between common mode inductance and the filter circuit; it is composed in parallel by common mode protective circuit and differential mode protective circuit, wherein
Described common mode protective circuit by cross-over connection in first piezo-resistance (RV1) between positive source and the ground wire and cross-over connection second piezo-resistance (RV2) between power cathode and ground wire form;
Described differential mode protective circuit is made of the 3rd piezo-resistance (RV3) of cross-over connection between positive source and power cathode.
2. a kind of sun-generated electric power intelligent controller according to claim 1, it is characterized in that, described lightning protection circuit also comprises the secondary lightning protection circuit, this circuit is located at described DC/DC translation circuit output, it is composed in parallel by secondary common mode protective circuit and secondary differential mode protective circuit, wherein, described secondary common mode protective circuit is made up of in the negative pole of the output of DC/DC translation circuit and the 5th piezo-resistance (RV5) between the ground wire in the positive pole of the output of DC/DC translation circuit and the 4th piezo-resistance (RV4) between the ground wire and cross-over connection cross-over connection; Described secondary differential mode protective circuit is made of in the positive pole of the output of DC/DC translation circuit and the 6th piezo-resistance (RV6) between the negative pole cross-over connection.
3. a kind of sun-generated electric power intelligent controller according to claim 1 and 2, it is characterized in that, also be provided with common mode-differential mode high-frequency filter circuit between a described lightning protection circuit and the common mode inductance, this circuit is composed in parallel by common mode high-frequency filter circuit and differential mode high-frequency filter circuit, wherein, described common mode high-frequency filter circuit by cross-over connection in first high frequency capacitance (C2) between positive source and the ground wire and cross-over connection second high frequency capacitance (C3) between power cathode and ground wire form; Described differential mode high-frequency filter circuit is made of the 3rd high frequency capacitance (C1) of cross-over connection between positive source and power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920060074 CN201438681U (en) | 2009-07-08 | 2009-07-08 | Intelligent controller for solar power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920060074 CN201438681U (en) | 2009-07-08 | 2009-07-08 | Intelligent controller for solar power supplies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438681U true CN201438681U (en) | 2010-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920060074 Expired - Lifetime CN201438681U (en) | 2009-07-08 | 2009-07-08 | Intelligent controller for solar power supplies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438681U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148500A (en) * | 2011-03-16 | 2011-08-10 | 深圳茂硕电源科技股份有限公司 | Unique lightning protection circuit of LED (light-emitting diode) power supply |
| CN103296661A (en) * | 2013-05-30 | 2013-09-11 | 深圳远征技术有限公司 | Lightning protection circuit of direct-current system |
| CN104466933A (en) * | 2013-09-18 | 2015-03-25 | 深圳市海洋王照明工程有限公司 | Energy-limiting explosion-proof circuit |
-
2009
- 2009-07-08 CN CN 200920060074 patent/CN201438681U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148500A (en) * | 2011-03-16 | 2011-08-10 | 深圳茂硕电源科技股份有限公司 | Unique lightning protection circuit of LED (light-emitting diode) power supply |
| CN103296661A (en) * | 2013-05-30 | 2013-09-11 | 深圳远征技术有限公司 | Lightning protection circuit of direct-current system |
| CN103296661B (en) * | 2013-05-30 | 2016-02-03 | 深圳远征技术有限公司 | A kind of lightning protection circuit of direct current system |
| CN104466933A (en) * | 2013-09-18 | 2015-03-25 | 深圳市海洋王照明工程有限公司 | Energy-limiting explosion-proof circuit |
| CN104466933B (en) * | 2013-09-18 | 2018-11-06 | 深圳市海洋王照明工程有限公司 | A kind of limit energy intrinsically safe circuit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100414 |
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| CX01 | Expiry of patent term |