CN203387428U - Switch power supply for combiner box - Google Patents
Switch power supply for combiner box Download PDFInfo
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- CN203387428U CN203387428U CN201320467358.6U CN201320467358U CN203387428U CN 203387428 U CN203387428 U CN 203387428U CN 201320467358 U CN201320467358 U CN 201320467358U CN 203387428 U CN203387428 U CN 203387428U
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Abstract
The utility model discloses a switch power supply for a combiner box. The switch power supply comprises a solar panel access circuit module and a transformer and further comprises a pulse width modulation circuit module, a reactive circuit module, a voltage stabilizing circuit module and a threshold circuit module. The output end of the solar panel access circuit module is connected with the input end of the pulse width modulation circuit module; the output end of the pulse width modulation circuit module is connected with the input end of the voltage stabilizing circuit module through the transformer; the voltage stabilizing circuit module is connected with the pulse width modulation circuit module through the reactive circuit module for adjusting the output of a pulse width modulation circuit by using an output voltage feedback; and the voltage stabilizing circuit module is also connected with the threshold circuit module for realizing voltage threshold output through a MOS tube and a comparator in a threshold circuit module. The switch power supply for the combiner box has the advantages of wide input voltage scope, simple circuit design, low cost and high reliability.
Description
Technical field
The utility model discloses a kind of Switching Power Supply for header box, the Switching Power Supply that the header box in especially a kind of solar energy power generating field is used, relate to the self-activated switch power supply field.
Background technology
Along with the development of human civilization is day by day rapid, the mankind also increase day by day to the demand of the energy, and traditional resource is increasingly exhausted, so exploitation regenerative resource and various green energy resource are to realize that sustainable development is the measure that the mankind must take.
Based on utilizing solar energy power generating also to obtain the concern of photovoltaic industry.The large-sized photovoltaic grid-connected system, must use the header box device.The header box of traditional belt current measuring ability need to carry out direct current or Alternating Current Power Supply from outside, the floor space of photovoltaic plant is larger, the distribution of photovoltaic combiner box dispersion very, and the distance of its power supply reaches several kilometers and even goes up myriametre.This has not only increased the cost of photovoltaic plant, and has reduced the reliability of photovoltaic plant.Utilize solar panel power supply, solar panel is the voltage of the highest 1000V, and general Switching Power Supply does not reach such requirement, and solar panel upwards raises from zero volt voltage morning simultaneously, and this also substantially exceeds the voltage request of regular tap power supply.
The utility model content
Technical problem to be solved in the utility model is: for the defect of prior art, provide a kind of Switching Power Supply for the header box power supply.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
A kind of Switching Power Supply for header box, comprise solar panel place in circuit module and transformer, also comprises pulse-width modulation circuit module, feedback circuit module, voltage stabilizing circuit module, threshold circuit module;
The output of solar panel place in circuit module is connected with the first input end of pulse-width modulation circuit module, and the output of pulse-width modulation circuit module is connected with the input of voltage stabilizing circuit module through transformer;
Voltage stabilizing circuit module is connected with the second input of pulse-width modulation circuit module through the feedback circuit module, utilizes the output of output voltage feedback regulation pulse-width modulation circuit;
The output of voltage stabilizing circuit module is connected with the threshold circuit module.Realize the threshold output of voltage by the metal-oxide-semiconductor in the threshold circuit module and comparator: when voltage output value, during lower than set point, the output voltage of Switching Power Supply is 0V; When voltage output value is greater than set point, the output voltage of Switching Power Supply is corresponding voltage output value.
As optimal technical scheme of the present utility model, in described pulse-width modulation circuit module, the metal-oxide-semiconductor of use is 2SK1317, and voltage withstand class is 1500V.
As optimal technical scheme of the present utility model, described threshold circuit module comprises metal-oxide-semiconductor and comparator, and metal-oxide-semiconductor is STP60N06.
As optimal technical scheme of the present utility model, in described threshold circuit module, the comparator of use is LM393.
As optimal technical scheme of the present utility model, described voltage stabilizing circuit module is TL431 voltage stabilizing chip.
The described Switching Power Supply for header box, its particular circuit configurations is as follows:
Solar panel place in circuit module comprises the first diode, the second diode, first to fourth electric capacity;
The pulse-width modulation circuit module comprises the first metal-oxide-semiconductor, the 3rd to the 6th diode, the first resistance, the second resistance, the 6th to the 8th resistance, transformer;
The feedback circuit module comprises the 3rd to the 5th resistance, the 5th to the 7th electric capacity, the 7th diode, optocoupler, triode;
Voltage stabilizing circuit module comprises the first voltage-stabiliser tube, the 9th to the 11 resistance, the 14 resistance, the 8th to the tenth electric capacity;
The threshold circuit module comprises the 12 resistance, the 13 resistance, the 15 resistance, the second voltage-stabiliser tube, the 3rd voltage-stabiliser tube, the second metal-oxide-semiconductor, comparator;
One end of the 4th electric capacity is connected with the positive pole of the first diode; The 3rd pin of one end of annex respectively with the first electric capacity of the first diode, an end of the first resistance, transformer, an end of the 3rd diode are connected; The other end of the 4th electric capacity is connected with the negative pole of the second diode; One end of the positive pole of the second diode and the 3rd electric capacity is connected and ground connection; One end of the other end of the 3rd electric capacity and the second electric capacity is connected; The other end of the second electric capacity is connected with the other end of the first electric capacity; The positive pole of the 3rd diode is connected with the negative pole of the 4th diode; The positive pole of the 4th diode is connected with the positive pole of the 5th diode; The negative pole of the 5th diode is connected with the first pin of transformer, the drain electrode of the first metal-oxide-semiconductor respectively;
One end of the other end of the first resistance and the second resistance is connected; The collector electrode of the grid of the other end respectively with the first metal-oxide-semiconductor of the second resistance, the negative pole of the 6th diode, triode, an end of the 3rd resistance, an end of the 4th resistance are connected; One end of the other end of the 3rd resistance the respectively with five electric capacity, an end of the 6th electric capacity are connected; The 5th pin of the other end of the other end of the 5th electric capacity the respectively with six electric capacity, transformer, the positive pole of the 7th diode are connected; The other end of the 4th resistance is connected with the collector electrode of triode and ground connection; The 4th pin of one end of the base stage of triode the respectively with five resistance, an end of the 7th electric capacity, optocoupler is connected; One end of the other end of the positive pole of the 6th diode the respectively with five resistance, the other end of the 7th electric capacity, the 6th resistance, an end of the 7th resistance, the source electrode of the first metal-oxide-semiconductor are connected; The other end of the other end of the 6th resistance and the 7th resistance is connected and ground connection; The second pin of the negative pole of the 7th diode and optocoupler is connected;
The 4th pin of transformer is connected with an end of the 8th electric capacity and ground connection; The other end of the 8th electric capacity is connected and ground connection with the 6th pin of transformer, an end of the 9th electric capacity, an end of the tenth resistance, an end of the 14 resistance, the positive pole of the second voltage-stabiliser tube, the positive pole of the 3rd voltage-stabiliser tube, an end of the 15 resistance, the earth terminal of comparator, the source electrode of the second metal-oxide-semiconductor respectively; The 8th pin of transformer is connected with the positive pole of the first voltage-stabiliser tube; One end of one end of the negative pole of the first voltage-stabiliser tube the respectively with eight resistance, the other end of the 9th electric capacity, the 9th resistance, the other end of the tenth resistance, an end of the 11 resistance, an end of the 12 resistance, an end of the 13 resistance, the upper pull end of comparator are connected; The first pin of the other end of the 8th resistance and optocoupler is connected; The second pin the respectively with nine resistance other end of optocoupler, an end of the tenth electric capacity, an end of the second voltage-stabiliser tube are connected; The other end of the feedback end of the second voltage-stabiliser tube the respectively with ten electric capacity, the other end of the 11 resistance, the other end of the 14 resistance are connected;
The negative pole of the 3rd voltage-stabiliser tube is connected with the negative input end of comparator, the other end of the 12 resistance respectively; The other end of the 15 resistance is connected with the other end of the 13 resistance, the positive input terminal of comparator respectively; The output of comparator is connected with the grid of the second metal-oxide-semiconductor.
The utility model adopts above technical scheme compared with prior art, has following technique effect: wide input voltage range, and circuit design is simple, and cost is low, and reliability is high.
The accompanying drawing explanation
Fig. 1 is the theory diagram of header box by Switching Power Supply.
Fig. 2 is the circuit diagram of header box by Switching Power Supply,
Wherein: R1 to R15 is the first to the 15 resistance, and C1 to C10 is the first to the tenth electric capacity, and D1 to D7 is the first to the 7th diode, D8 to D10 is the first to the 3rd voltage-stabiliser tube, and T1 is transformer, and U1 is comparator, U2 is optocoupler, and Q1, Q3 are respectively first, second metal-oxide-semiconductor, and Q2 is triode.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
The Switching Power Supply for header box as shown in Figure 1, by solar panel place in circuit, pulse-width modulation circuit, transformer, feedback circuit, voltage stabilizing circuit, utilize the output of output voltage feedback regulation pulse-width modulation circuit, utilize metal-oxide-semiconductor and comparator to realize the threshold output of voltage simultaneously.The two poles of the earth of the input termination solar module of solar energy place in circuit, voltage stabilizing circuit is connected by feedback circuit with pulse-width modulation circuit.Voltage stabilizing circuit is connected the threshold output that realizes voltage with threshold circuit.
Circuit diagram as shown in Figure 2: the metal-oxide-semiconductor for pulse-width modulation circuit is 2SK1317, and the voltage stabilizing chip adopts the comparator of TL431, threshold circuit to adopt LM393, and metal-oxide-semiconductor adopts STP60N06.The described Switching Power Supply for header box, its particular circuit configurations is as follows:
Solar panel place in circuit module comprises the first diode, the second diode, first to fourth electric capacity;
The pulse-width modulation circuit module comprises the first metal-oxide-semiconductor, the 3rd to the 6th diode, the first resistance, the second resistance, the 6th to the 8th resistance, transformer;
The feedback circuit module comprises the 3rd to the 5th resistance, the 5th to the 7th electric capacity, the 7th diode, optocoupler, triode;
Voltage stabilizing circuit module comprises the first voltage-stabiliser tube, the 9th to the 11 resistance, the 14 resistance, the 8th to the tenth electric capacity;
The threshold circuit module comprises the 12 resistance, the 13 resistance, the 15 resistance, the second voltage-stabiliser tube, the 3rd voltage-stabiliser tube, the second metal-oxide-semiconductor, comparator;
One end of the 4th electric capacity is connected with the positive pole of the first diode; The 3rd pin of one end of annex respectively with the first electric capacity of the first diode, an end of the first resistance, transformer, an end of the 3rd diode are connected; The other end of the 4th electric capacity is connected with the negative pole of the second diode; One end of the positive pole of the second diode and the 3rd electric capacity is connected and ground connection; One end of the other end of the 3rd electric capacity and the second electric capacity is connected; The other end of the second electric capacity is connected with the other end of the first electric capacity; The positive pole of the 3rd diode is connected with the negative pole of the 4th diode; The positive pole of the 4th diode is connected with the positive pole of the 5th diode; The negative pole of the 5th diode is connected with the first pin of transformer, the drain electrode of the first metal-oxide-semiconductor respectively; One end of the other end of the first resistance and the second resistance is connected; The collector electrode of the grid of the other end respectively with the first metal-oxide-semiconductor of the second resistance, the negative pole of the 6th diode, triode, an end of the 3rd resistance, an end of the 4th resistance are connected; One end of the other end of the 3rd resistance the respectively with five electric capacity, an end of the 6th electric capacity are connected; The 5th pin of the other end of the other end of the 5th electric capacity the respectively with six electric capacity, transformer, the positive pole of the 7th diode are connected; The other end of the 4th resistance is connected with the collector electrode of triode and ground connection; The 4th pin of one end of the base stage of triode the respectively with five resistance, an end of the 7th electric capacity, optocoupler is connected; One end of the other end of the positive pole of the 6th diode the respectively with five resistance, the other end of the 7th electric capacity, the 6th resistance, an end of the 7th resistance, the source electrode of the first metal-oxide-semiconductor are connected; The other end of the other end of the 6th resistance and the 7th resistance is connected and ground connection; The second pin of the negative pole of the 7th diode and optocoupler is connected; The 4th pin of transformer is connected with an end of the 8th electric capacity and ground connection; The other end of the 8th electric capacity is connected and ground connection with the 6th pin of transformer, an end of the 9th electric capacity, an end of the tenth resistance, an end of the 14 resistance, the positive pole of the second voltage-stabiliser tube, the positive pole of the 3rd voltage-stabiliser tube, an end of the 15 resistance, the earth terminal of comparator, the source electrode of the second metal-oxide-semiconductor respectively; The 8th pin of transformer is connected with the positive pole of the first voltage-stabiliser tube; One end of one end of the negative pole of the first voltage-stabiliser tube the respectively with eight resistance, the other end of the 9th electric capacity, the 9th resistance, the other end of the tenth resistance, an end of the 11 resistance, an end of the 12 resistance, an end of the 13 resistance, the upper pull end of comparator are connected; The first pin of the other end of the 8th resistance and optocoupler is connected; The second pin the respectively with nine resistance other end of optocoupler, an end of the tenth electric capacity, an end of the second voltage-stabiliser tube are connected; The other end of the feedback end of the second voltage-stabiliser tube the respectively with ten electric capacity, the other end of the 11 resistance, the other end of the 14 resistance are connected; The negative pole of the 3rd voltage-stabiliser tube is connected with the negative input end of comparator, the other end of the 12 resistance respectively; The other end of the 15 resistance is connected with the other end of the 13 resistance, the positive input terminal of comparator respectively; The output of comparator is connected with the grid of the second metal-oxide-semiconductor.
Rectifier diode D1, D2 and capacitor C 1-C4 form the withstand voltage anti-reverse solar panel input circuit that reaches 1200V.Rectifier diode D3, D4, TVS manages D5,11V voltage-stabiliser tube D6, resistance R 1, R2, R6, R7, R8, metal-oxide-semiconductor 2SK1317 has formed the pulse-width modulation circuit of a withstand voltage 1500V of being up to.
Resistance R 3, R4, R5, capacitor C 5, C6, C7, diode D7 and optocoupler U2, triode Q2 forms a light-coupled isolation feedback and control circuit.Resistance R 9, R10, R11, R14, capacitor C 9, C10, voltage stabilizing chip TL431 forms a 5V voltage stabilizing circuit.Comparator is used two voltage comparator integrated circuits (LM393), resistance R 12, R13, R15,2.5V voltage stabilizing didoe D9 and metal-oxide-semiconductor STP60N06 have formed a threshold circuit, when voltage lower than 4.5V is, and comparator output 0V, metal-oxide-semiconductor Q3 closes, output voltage is 0V, but when between voltage VCC and GND, voltage is greater than 4.5V, comparator LM393 exports VCC, metal-oxide-semiconductor Q3 opens, and is output as VCC.
In sum, the utility model circuit design is simple, and cost is low, and reliability is high.Above-mentioned specific embodiment is only an example of the present utility model, and every embodiment of this patent utility model aim that meets is all within protection range of the present utility model.
Claims (6)
1. the Switching Power Supply for header box, comprise solar panel place in circuit module and transformer, it is characterized in that: also comprise pulse-width modulation circuit module, feedback circuit module, voltage stabilizing circuit module, threshold circuit module;
The output of solar panel place in circuit module is connected with the first input end of pulse-width modulation circuit module, and the output of pulse-width modulation circuit module is connected with the input of voltage stabilizing circuit module through transformer;
Voltage stabilizing circuit module is connected with the second input of pulse-width modulation circuit module through the feedback circuit module, utilizes the output of output voltage feedback regulation pulse-width modulation circuit;
The output of voltage stabilizing circuit module is connected with the threshold circuit module.
2. a kind of Switching Power Supply for header box as claimed in claim 1, it is characterized in that: described pulse-width modulation circuit module comprises metal-oxide-semiconductor, and described metal-oxide-semiconductor model is 2SK1317, and voltage withstand class is 1500V.
3. a kind of Switching Power Supply for header box as claimed in claim 1, it is characterized in that: described threshold circuit module comprises metal-oxide-semiconductor and comparator, metal-oxide-semiconductor is STP60N06.
4. a kind of Switching Power Supply for header box as claimed in claim 3, it is characterized in that: described comparator is LM393.
5. a kind of Switching Power Supply for header box as claimed in claim 1, it is characterized in that: described voltage stabilizing circuit module is TL431 voltage stabilizing chip.
6. a kind of Switching Power Supply for header box as claimed in claim 5 is characterized in that:
Solar panel place in circuit module comprises the first diode, the second diode, first to fourth electric capacity;
The pulse-width modulation circuit module comprises the first metal-oxide-semiconductor, the 3rd to the 6th diode, the first resistance, the second resistance, the 6th to the 8th resistance, transformer;
The feedback circuit module comprises the 3rd to the 5th resistance, the 5th to the 7th electric capacity, the 7th diode, optocoupler, triode;
Voltage stabilizing circuit module comprises the first voltage-stabiliser tube, the 9th to the 11 resistance, the 14 resistance, the 8th to the tenth electric capacity;
The threshold circuit module comprises the 12 resistance, the 13 resistance, the 15 resistance, the second voltage-stabiliser tube, the 3rd voltage-stabiliser tube, the second metal-oxide-semiconductor, comparator;
One end of the 4th electric capacity is connected with the positive pole of the first diode; The 3rd pin of one end of annex respectively with the first electric capacity of the first diode, an end of the first resistance, transformer, an end of the 3rd diode are connected; The other end of the 4th electric capacity is connected with the negative pole of the second diode; One end of the positive pole of the second diode and the 3rd electric capacity is connected and ground connection; One end of the other end of the 3rd electric capacity and the second electric capacity is connected; The other end of the second electric capacity is connected with the other end of the first electric capacity; The positive pole of the 3rd diode is connected with the negative pole of the 4th diode; The positive pole of the 4th diode is connected with the positive pole of the 5th diode; The negative pole of the 5th diode is connected with the first pin of transformer, the drain electrode of the first metal-oxide-semiconductor respectively;
One end of the other end of the first resistance and the second resistance is connected; The collector electrode of the grid of the other end respectively with the first metal-oxide-semiconductor of the second resistance, the negative pole of the 6th diode, triode, an end of the 3rd resistance, an end of the 4th resistance are connected; One end of the other end of the 3rd resistance the respectively with five electric capacity, an end of the 6th electric capacity are connected; The 5th pin of the other end of the other end of the 5th electric capacity the respectively with six electric capacity, transformer, the positive pole of the 7th diode are connected; The other end of the 4th resistance is connected with the collector electrode of triode and ground connection; The 4th pin of one end of the base stage of triode the respectively with five resistance, an end of the 7th electric capacity, optocoupler is connected; One end of the other end of the positive pole of the 6th diode the respectively with five resistance, the other end of the 7th electric capacity, the 6th resistance, an end of the 7th resistance, the source electrode of the first metal-oxide-semiconductor are connected; The other end of the other end of the 6th resistance and the 7th resistance is connected and ground connection; The second pin of the negative pole of the 7th diode and optocoupler is connected;
The 4th pin of transformer is connected with an end of the 8th electric capacity and ground connection; The other end of the 8th electric capacity is connected and ground connection with the 6th pin of transformer, an end of the 9th electric capacity, an end of the tenth resistance, an end of the 14 resistance, the positive pole of the second voltage-stabiliser tube, the positive pole of the 3rd voltage-stabiliser tube, an end of the 15 resistance, the earth terminal of comparator, the source electrode of the second metal-oxide-semiconductor respectively; The 8th pin of transformer is connected with the positive pole of the first voltage-stabiliser tube; One end of one end of the negative pole of the first voltage-stabiliser tube the respectively with eight resistance, the other end of the 9th electric capacity, the 9th resistance, the other end of the tenth resistance, an end of the 11 resistance, an end of the 12 resistance, an end of the 13 resistance, the upper pull end of comparator are connected; The first pin of the other end of the 8th resistance and optocoupler is connected; The second pin the respectively with nine resistance other end of optocoupler, an end of the tenth electric capacity, an end of the second voltage-stabiliser tube are connected; The other end of the feedback end of the second voltage-stabiliser tube the respectively with ten electric capacity, the other end of the 11 resistance, the other end of the 14 resistance are connected;
The negative pole of the 3rd voltage-stabiliser tube is connected with the negative input end of comparator, the other end of the 12 resistance respectively; The other end of the 15 resistance is connected with the other end of the 13 resistance, the positive input terminal of comparator respectively; The output of comparator is connected with the grid of the second metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467358.6U CN203387428U (en) | 2013-08-02 | 2013-08-02 | Switch power supply for combiner box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467358.6U CN203387428U (en) | 2013-08-02 | 2013-08-02 | Switch power supply for combiner box |
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| CN203387428U true CN203387428U (en) | 2014-01-08 |
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| CN201320467358.6U Expired - Fee Related CN203387428U (en) | 2013-08-02 | 2013-08-02 | Switch power supply for combiner box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401451A (en) * | 2013-08-02 | 2013-11-20 | 金海新源电气江苏有限公司 | Switching power supply for combiner box |
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- 2013-08-02 CN CN201320467358.6U patent/CN203387428U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401451A (en) * | 2013-08-02 | 2013-11-20 | 金海新源电气江苏有限公司 | Switching power supply for combiner box |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |