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Power supply circuit with function of decreasing power consumption of reversal-preventing diode

A technology of anti-reverse diodes and power circuits, applied in the field of solar power generation, can solve the problems of large energy loss and reduce power consumption of anti-reverse diodes

Active Publication Date: 2017-06-13
SUZHOU CHANGFENG AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above, the present invention provides a power circuit with the function of reducing the power consumption of the anti-reverse diode, which can solve the problem of large energy loss of the existing power supply circuit with the anti-reverse diode, and reduce the power consumption of the anti-reverse diode

Method used

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  • Power supply circuit with function of decreasing power consumption of reversal-preventing diode

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Experimental program
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Embodiment Construction

[0014] like figure 1 As shown, the power supply circuit with the function of reducing the power consumption of the anti-reverse diode includes:

[0015] A voltage equalizing unit, used for stabilizing and equalizing the voltage of the input DC power supply;

[0016] The inverter unit is used to convert the voltage stabilized and equalized by the capacitor into an AC voltage;

[0017] A conversion unit with a transformer is used for voltage conversion, converting AC power into DC power for subsequent circuits;

[0018] The anti-reverse unit is used to prevent the current of the high-voltage branch from flowing to the low-voltage branch;

[0019] Among them, the anti-reverse unit includes: an anti-reverse diode D1 and a MOS tube connected in parallel with it, the anode of the anti-reverse diode D1 is connected to the positive pole of the DC power supply, and the cathode of the anti-reverse diode D1 is connected to the voltage equalizing unit;

[0020] A current sensor is used...

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PUM

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Abstract

The invention discloses a power supply circuit with a function of decreasing the power consumption of a reversal-preventing diode. The power supply circuit comprises a direct-current power supply, a voltage equalizing unit, an inversion unit, a conversion unit with a transformer, a reversal preventing unit, a current sensor and a controller. When the power supply circuit provided by the invention works, the controller controls to switch on an MOS (Metal Oxide Semiconductor) transistor when the current sensor detects that a current flows through a diode exists; therefore, the diode is bypassed; as the switching-on voltage drop of the MOS transistor is less than that of the diode, the problem that an existing power supply circuit with a reversal-preventing diode is high in energy consumption can be solved; the consumed electric energy of the diode can be decreased.

Description

technical field [0001] The application relates to the field of solar power generation, specifically a power supply circuit with the function of reducing power consumption of anti-reverse diodes. Background technique [0002] For the ground power station, in order to increase the utilization rate of the land and the metal support, consider that there is no shelter between the working window components during the sunshine time of 9:00-15:00, and generally use 2 to 3 rows of components to install on the support. However, outside the designed sunshine time window, shadow occlusion is unavoidable. In roof power plants, especially metal roof power plants, there are usually taller buildings around them. Especially for factory buildings that are generally designed with a herringbone structure on the north and south sides, there will be an air tower in the middle. Considering the utilization rate of the roof, the shading analysis on the north side will be done to the greatest extent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02H7/12
CPCH02H7/1213H02M3/33523H02M1/0051Y02B70/10
Inventor 张发宇费春国
Owner SUZHOU CHANGFENG AUTOMATION TECH