CN202267703U - Solar cell panel voltage detecting system - Google Patents
Solar cell panel voltage detecting system Download PDFInfo
- Publication number
- CN202267703U CN202267703U CN 201120402952 CN201120402952U CN202267703U CN 202267703 U CN202267703 U CN 202267703U CN 201120402952 CN201120402952 CN 201120402952 CN 201120402952 U CN201120402952 U CN 201120402952U CN 202267703 U CN202267703 U CN 202267703U
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- CN
- China
- Prior art keywords
- resistance
- amplifier circuit
- solar cell
- operation amplifier
- cell panel
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a solar cell panel voltage detecting system capable of detecting the voltage of a solar cell panel in real time and improving the output power of the solar panel. The system comprises an operational amplifier circuit, a diode, seven resistors, a cell, and an N-channel metal oxide semiconductor (NMOS) switching tube, wherein the source of the NMOS switching tube is connected with the cathode of the solar cell, connected in series with the first resistor and the second resistor and then connected with the cathode of the diode; the drain of the NMOS switching tube is simultaneously connected with the cathode of the cell and the grounding port of the operational amplifier circuit; and the grid of the NMOS switching tube is connected with an external maximum power point tracking (MPPT) signal. The solar cell panel voltage detecting system can achieve an effect of detecting the voltage of the solar cell panel in real time; and the grid of the NMOS switching tube is connected with the MPPT signal, so that the on-off frequency of the NMOS switching tube can be adjusted, impedances of an input and an output are matched, and power transmission maximization of the solar cell panel is realized.
Description
Technical field
The utility model relates to a kind of voltage detecting system, especially a kind of solar cell panel voltages detection system.
Background technology
Because the output voltage of solar panel can change according to the variation of solar irradiation situation; And solar direction is conversion, can deflect, and sun light intensity is different can be changed the voltage that solar panels produce because of accepting; So need to detect its magnitude of voltage; The signal that detects offers microprocessor and the solar panels maximum power state compares, thereby can control solar panels, makes solar panels can detect the magnitude of voltage of solar panel according to solar direction from this circuit of motion tracking adjustment; Follow the tracks of solar azimuth with the control solar panel and turn to, thereby make the output power of solar panel reach maximum.
Existing solar cell panel voltages detection system is used regular tap control; When breaking off, switch detects solar cell panel voltages; Do not detect voltage during switch closure, can not carry out real-time voltage to solar panels and detect, influenced the output power of solar panels.
The utility model content
The purpose of the utility model provides a kind of voltage that can detect solar panels in real time, improves the solar cell panel voltages detection system of solar panels output power.
Realize the solar cell panel voltages detection system of the utility model purpose; Comprise operation amplifier circuit, diode, seven resistance, battery; Also comprise the nmos switch pipe; The negative pole that the source electrode of said nmos switch pipe connects solar cell respectively with through be connected the negative pole of diode with first resistance and second resistance series connection back; The drain electrode of said nmos switch pipe connects the negative pole of battery, the grounding ports of operation amplifier circuit simultaneously, and the grid of nmos switch pipe connects outside maximal power tracing point signal.
After linking to each other, receives at the positive pole of the Anode and battery of said solar panel the positive pole of power supply port, the 5th resistance and the diode of said operation amplifier circuit respectively; The negative pole of diode through with the negative pole of receiving solar panel after second resistance and first resistance are connected; Receive the negative pole of battery after the 5th resistance and the series connection of the 7th resistance; The negative pole of battery connects the grounding ports of operation amplifier circuit simultaneously; The tie point of the 5th resistance and the series connection of the 7th resistance is received the positive port of input of operation amplifier circuit, and the tie point of second resistance and the series connection of first resistance is received the 6th resistance, and is connected to the input negative terminal mouth of operation amplifier circuit through the 6th resistance; The 3rd resistance is connected between the output port and input negative terminal mouth of operation amplifier circuit, and the output port of operation amplifier circuit connects the 4th resistance simultaneously.
The beneficial effect of the utility model is following:
The solar cell panel voltages detection system of the utility model, the earth signal of solar panel links to each other with drain electrode with the source electrode of the earth signal of testing circuit through the nmos switch pipe, and does not directly connect; Realize not the effect on ground altogether; Can reach the effect of real-time detection solar cell panel voltages, the grid of nmos switch pipe connects the MPPT signal simultaneously, can adjust the conducting of nmos switch pipe and turn-off frequency; Reach the impedance matching of input and output, realize the power transmission maximized of solar panel.
Description of drawings
Fig. 1 is the structural representation of the utility model solar cell panel voltages detection system.
Embodiment
The embodiment of the utility model is following:
As shown in Figure 1; The solar cell panel voltages detection system of the utility model; Comprise operation amplifier circuit U1 (model LM358N), nmos switch pipe Q1 (model 2N6661), diode D1 (model 1N4148), first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, battery BV (fixedly 12V magnitude of voltage, for operation amplifier circuit U1 provides normal WV), solar panel PV (between voltage 0～23V).
After linking to each other, receives at the positive pole of the Anode and battery BV of solar panel PV the positive pole of power supply port (for LM358N provides chip operating voltage), the 5th resistance R 5 and the diode D1 of operation amplifier circuit U1; The negative pole of diode D1 through with the negative pole of receiving solar panel PV after second resistance R 2 and a R1 are connected; The negative pole of solar panel PV extremely links to each other with source electrode/S of nmos switch pipe Q1 simultaneously; Receive the negative pole of battery BV after the 5th resistance R 5 and 7 series connection of the 7th resistance R; The negative pole of battery BV connects the contact port of operation amplifier circuit U1 and drain electrode/D utmost point of nmos switch pipe Q1 simultaneously; The grid of nmos switch pipe Q1 is received outside MPPT signal (maximal power tracing point signal); The tie point of the 5th resistance R 5 and 7 series connection of the 7th resistance R is received the input anode of operation amplifier circuit U1; The tie point of second resistance R 2 and the series connection of first resistance R 1 is received the 6th resistance R 6, and is connected to the input negative terminal of operation amplifier circuit U1 through the 6th resistance R 6, and the 3rd resistance R 3 is connected between the output port and input negative terminal mouth of operation amplifier circuit U1; The other end output voltage that the output port of operation amplifier circuit U1 connects the 4th resistance R 4, the four resistance R 4 simultaneously is required inspection voltage.
Embodiment recited above describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Design under the spiritual prerequisite not breaking away from the utility model; Various distortion and improvement that the common engineering technical personnel in this area make the utility model technical scheme all should fall in the protection domain that claims of the utility model confirm.
Claims (2)
1. solar cell panel voltages detection system; Comprise operation amplifier circuit, diode, seven resistance, battery; It is characterized in that: also comprise the nmos switch pipe; The negative pole that the source electrode of said nmos switch pipe connects solar cell respectively with through be connected the negative pole of diode with first resistance and second resistance series connection back; The drain electrode of said nmos switch pipe connects the negative pole of battery, the grounding ports of operation amplifier circuit simultaneously, and the grid of nmos switch pipe connects outside maximal power tracing point signal.
2. solar cell panel voltages detection system according to claim 1 is characterized in that: the positive pole of receiving power supply port, the 5th resistance and the diode of said operation amplifier circuit after the positive pole of the Anode and battery of said solar panel links to each other respectively; The negative pole of diode through with the negative pole of receiving solar panel after second resistance and first resistance are connected; Receive the negative pole of battery after the 5th resistance and the series connection of the 7th resistance; The negative pole of battery connects the grounding ports of operation amplifier circuit simultaneously; The tie point of the 5th resistance and the series connection of the 7th resistance is received the positive port of input of operation amplifier circuit, and the tie point of second resistance and the series connection of first resistance is received the 6th resistance, and is connected to the input negative terminal mouth of operation amplifier circuit through the 6th resistance; The 3rd resistance is connected between the output port and input negative terminal mouth of operation amplifier circuit, and the output port of operation amplifier circuit connects the 4th resistance simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120402952 CN202267703U (en) | 2011-10-13 | 2011-10-13 | Solar cell panel voltage detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120402952 CN202267703U (en) | 2011-10-13 | 2011-10-13 | Solar cell panel voltage detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267703U true CN202267703U (en) | 2012-06-06 |
Family
ID=46158492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120402952 Expired - Fee Related CN202267703U (en) | 2011-10-13 | 2011-10-13 | Solar cell panel voltage detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202267703U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778597A (en) * | 2012-08-04 | 2012-11-14 | 无锡隆玛科技股份有限公司 | Voltage frequency conversion high voltage isolating circuit for use in voltage measurement in photovoltaic power station |
| WO2023015782A1 (en) * | 2021-08-11 | 2023-02-16 | 杭州联芯通半导体有限公司 | Testing circuit applied to photovoltaic system having quick shutdown mechanism |
-
2011
- 2011-10-13 CN CN 201120402952 patent/CN202267703U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778597A (en) * | 2012-08-04 | 2012-11-14 | 无锡隆玛科技股份有限公司 | Voltage frequency conversion high voltage isolating circuit for use in voltage measurement in photovoltaic power station |
| CN102778597B (en) * | 2012-08-04 | 2014-06-25 | 无锡隆玛科技股份有限公司 | Voltage frequency conversion high voltage isolating circuit for use in voltage measurement in photovoltaic power station |
| WO2023015782A1 (en) * | 2021-08-11 | 2023-02-16 | 杭州联芯通半导体有限公司 | Testing circuit applied to photovoltaic system having quick shutdown mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161227 Address after: 101 Fujian Province, Jimei District, white rock road, No., unit 19, No. 361000 Patentee after: XIAMEN CHL NEW ENERGY CO., LTD. Address before: 304 Fujian Province, Jimei District, white rock road, No., unit 19, No. 361000 Patentee before: XIAMEN LUXUN ELECTRIC CONTROL CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20181013 |