CN217692770U - High-efficient low pressure PWM solar control ware - Google Patents
High-efficient low pressure PWM solar control ware Download PDFInfo
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- CN217692770U CN217692770U CN202220703692.6U CN202220703692U CN217692770U CN 217692770 U CN217692770 U CN 217692770U CN 202220703692 U CN202220703692 U CN 202220703692U CN 217692770 U CN217692770 U CN 217692770U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model discloses a high-efficient low pressure PWM solar control ware, including boost circuit, control module and drive module, install switching device on the power supply branch that solar photovoltaic board and battery are connected, control module can produce high frequency square wave and start boost circuit, make boost circuit start and provide the power for drive circuit, control module exports control signal again and passes through drive circuit drive switching device, make the power supply branch UNICOM between solar photovoltaic board and the battery, let the battery charge, other modules do not interfere the power supply branch, the internal resistance is little and the power supply efficiency is high under the environment of low-voltage, and the chip device that whole circuit used is few, the structure is retrencied rationally, cost constraint effectively.
Description
Technical Field
The utility model relates to a solar energy power supply controller, especially a high-efficient low-voltage PWM solar controller.
Background
In reality, a charge and discharge source formed by connecting a plurality of batteries in series has a voltage balance problem, so that most of the existing low-cost solar controller systems use a single battery as a charge and discharge source, and most of the solar controller systems adopt a PWM control scheme for the constraint cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a high-efficient low pressure PWM solar controller.
The utility model provides a technical scheme that its technical problem adopted is:
a high-efficiency low-voltage PWM solar controller comprises a booster circuit, a control module and a driving module, wherein a power supply branch circuit connected with a solar photovoltaic panel and a battery is provided with a switch device; the signal output end of the control module is respectively connected with the control end of the booster circuit and the input end of the driving module, and the output end of the driving module is connected with the control end of the switching device; the booster circuit provides a working power supply for the driving module.
The driving module comprises a first driving circuit and a second driving circuit, and the switching device comprises an MOS (metal oxide semiconductor) transistor Q1 and an MOS transistor Q2; the G pole of the MOS tube Q1 is connected with the output end of the first driving circuit, the S pole of the MOS tube Q1 is connected with the solar photovoltaic panel, and the D pole of the MOS tube Q1 is connected with the D pole of the MOS tube; and the S pole of the MOS tube Q2 is connected with the battery, and the G pole is connected with the output end of the second driving circuit.
The first driving circuit comprises a triode Q14, a triode Q20, a resistor R12, a resistor R6, a resistor R60 and a resistor R8; the E pole of the triode Q20 is grounded, the B pole of the triode Q20 is grounded through the resistor R6, the C pole of the triode Q14 is divided into two paths, one path of the C pole is connected with the B pole of the triode Q14, the other path of the C pole of the triode Q14 is connected through the resistor R60, and the E pole of the triode Q14 is grounded through the resistor R8; one end of the resistor R12 is connected with a node between the B pole of the triode Q20 and the resistor R6, and the other end of the resistor R12 is an input end of the first driving circuit; the node of the E pole of the triode Q14 and the resistor R8 is the output end of the first driving circuit; a node between the C electrode of the triode Q14 and the resistor R60 is a power supply input end; the second driving circuit has the same structure as the first driving circuit.
The booster circuit comprises a diode D2, an inductor L3, a triode Q6, a capacitor C9, a capacitor C8 and a resistor R1; one end of the resistor R1 is connected with the B pole of the triode Q6, and the other end of the resistor R1 is a control end of the booster circuit; the E pole of the triode Q6 is grounded, the C pole of the triode Q6 is divided into two paths, one path of the triode is grounded through the diode D2 and the capacitor C9 in sequence, and the other path of the triode is grounded through the inductor L3 and the capacitor C8 in sequence.
The utility model has the advantages that: the utility model discloses a control module can produce the high frequency square wave and start boost circuit for boost circuit starts and provides the power for drive circuit, control module exports control signal again and passes through drive circuit drive switch device, make the power supply branch road UNICOM between solar photovoltaic board and the battery, let the battery charge, other modules do not interfere the power supply branch road, the internal resistance is little and power supply efficiency is high under the environment of low-voltage, and the chip device that whole circuit used is few, the structure is retrencied rationally, with cost constraint effectively.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a circuit schematic of the first drive circuit.
Detailed Description
Referring to fig. 1 and 2, a high-efficiency low-voltage PWM solar controller includes a boost circuit (labeled D in the figure), a control module (labeled U1 in the figure), and a driving module (labeled a in the figure), wherein a switching device (labeled F in the figure) is installed on a power supply branch circuit connecting a solar photovoltaic panel (labeled PV in the figure) and a battery (labeled BAT in the figure); the signal output end of the control module is respectively connected with the control end of the booster circuit and the input end of the driving module, and the output end of the driving module is connected with the control end of the switching device; the booster circuit provides a working power supply for the driving module; terminals having the same reference number in the drawings represent electrical connections; the model of control module is STM32F030C8T6, when the solar photovoltaic board needs to charge to the battery, control module can produce a high frequency square wave and start boost circuit, boost circuit can boost external power VCC and generate starting voltage HVCC, provide starting power for drive circuit, control module exports control signal again, drive switch device through drive circuit, make the power supply branch road UNICOM between solar photovoltaic board and the battery, let the battery charge, the internal resistance is little and the power supply efficiency is high under the environment of low-voltage, and the chip device that whole circuit used is few, the structure is retrencied rationally, cost constraint effectively.
The driving module comprises a first driving circuit and a second driving circuit, and the switching device comprises an MOS (metal oxide semiconductor) transistor Q1 and an MOS transistor Q2; the G pole of the MOS tube Q1 is connected with the output end of the first driving circuit, the S pole of the MOS tube Q1 is connected with the negative pole of the solar photovoltaic panel, and the D pole of the MOS tube Q1 is connected with the D pole of the MOS tube; the negative pole of battery is connected to MOS pipe Q2 'S the S utmost point, and the G utmost point is connected second drive circuit' S output, and every MOS pipe Q1 and MOS pipe Q2 all have a drive circuit drive, only install MOS pipe Q1 and MOS pipe Q2 as switching device on the power supply branch between solar photovoltaic board and the battery, other modules do not interfere the power supply branch road.
The first driving circuit comprises a triode Q14, a triode Q20, a resistor R12, a resistor R6, a resistor R60 and a resistor R8; the E pole of the triode Q20 is grounded, the B pole of the triode Q20 is grounded through the resistor R6, the C pole of the triode Q14 is divided into two paths, one path of the C pole is connected with the B pole of the triode Q14, the other path of the C pole of the triode Q14 is connected through the resistor R60, and the E pole of the triode Q14 is grounded through the resistor R8; one end of the resistor R12 is connected with a node between the B pole of the triode Q20 and the resistor R6, and the other end of the resistor R12 is an input end of the first driving circuit and is connected with a signal output end (IO 8 pin) of the control module; the node of the E pole of the triode Q14 and the resistor R8 is the output end of the first driving circuit and is connected with the G pole of the MOS transistor Q1; a node of the C electrode of the triode Q14 and the resistor R60 is a power supply input end and is connected with a power supply output end of the booster circuit; the second driving circuit has the same structure as the first driving circuit.
The boosting circuit comprises a diode D2, an inductor L3, a triode Q6, a capacitor C9, a capacitor C8 and a resistor R1; one end of the resistor R1 is connected with the B pole of the triode Q6, and the other end of the resistor R1 is a control end of the booster circuit and is connected with a signal output end (IO 6 pin) of the control module; the E pole of the triode Q6 is grounded, the C pole of the triode Q6 is divided into two paths, one path of the triode is grounded through a diode D2 and a capacitor C9 in sequence, and the other path of the triode is grounded through an inductor L3 and a capacitor C8 in sequence; the node between the inductor L3 and the capacitor C8 is a power input terminal (denoted by VCC in the figure) of the boost circuit, and the node between the diode D2 and the capacitor C9 is a power output terminal (denoted by HVCC in the figure) of the boost circuit. The driving module and the booster circuit are only composed of a small number of electronic devices, and an additional integrated chip is not adopted, so that the cost is restrained to the minimum under the condition of ensuring complete functions.
The above embodiments are not intended to limit the scope of the present invention, and those skilled in the art can make modifications and variations equivalent without departing from the overall concept of the present invention.
Claims (3)
1. A high-efficiency low-voltage PWM solar controller comprises a booster circuit, a control module and a driving module, and is characterized in that a power supply branch circuit connected with a solar photovoltaic panel and a battery is provided with a switch device; the signal output end of the control module is respectively connected with the control end of the booster circuit and the input end of the driving module, and the output end of the driving module is connected with the control end of the switching device; the booster circuit provides a working power supply for the driving module; the boosting circuit comprises a diode D2, an inductor L3, a triode Q6, a capacitor C9, a capacitor C8 and a resistor R1; one end of the resistor R1 is connected with the B pole of the triode Q6, and the other end of the resistor R1 is a control end of the booster circuit; the E pole of the triode Q6 is grounded, the C pole of the triode Q6 is divided into two paths, one path of the triode is grounded through the diode D2 and the capacitor C9 in sequence, and the other path of the triode is grounded through the inductor L3 and the capacitor C8 in sequence.
2. The high-efficiency low-voltage PWM solar controller according to claim 1, wherein said driving module comprises a first driving circuit and a second driving circuit, said switching device comprises a MOS transistor Q1 and a MOS transistor Q2; the G pole of the MOS tube Q1 is connected with the output end of the first driving circuit, the S pole of the MOS tube Q1 is connected with the solar photovoltaic panel, and the D pole of the MOS tube Q1 is connected with the D pole of the MOS tube; and the S pole of the MOS tube Q2 is connected with the battery, and the G pole is connected with the output end of the second driving circuit.
3. The high-efficiency low-voltage PWM solar controller according to claim 2, wherein said first driving circuit comprises a transistor Q14, a transistor Q20, a resistor R12, a resistor R6, a resistor R60 and a resistor R8; the E pole of the triode Q20 is grounded, the B pole of the triode Q20 is grounded through the resistor R6, the C pole of the triode Q14 is divided into two paths, one path of the C pole is connected with the B pole of the triode Q14, the other path of the C pole of the triode Q14 is connected through the resistor R60, and the E pole of the triode Q14 is grounded through the resistor R8; one end of the resistor R12 is connected with a node between the B pole of the triode Q20 and the resistor R6, and the other end of the resistor R is an input end of the first driving circuit; the node of the E pole of the triode Q14 and the resistor R8 is the output end of the first driving circuit; a node between the C electrode of the triode Q14 and the resistor R60 is a power supply input end; the second driving circuit has the same structure as the first driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220703692.6U CN217692770U (en) | 2022-03-29 | 2022-03-29 | High-efficient low pressure PWM solar control ware |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220703692.6U CN217692770U (en) | 2022-03-29 | 2022-03-29 | High-efficient low pressure PWM solar control ware |
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| Publication Number | Publication Date |
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| CN217692770U true CN217692770U (en) | 2022-10-28 |
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| CN202220703692.6U Active CN217692770U (en) | 2022-03-29 | 2022-03-29 | High-efficient low pressure PWM solar control ware |
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| CN (1) | CN217692770U (en) |
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- 2022-03-29 CN CN202220703692.6U patent/CN217692770U/en active Active
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