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Direct-current power supply system and control method

A DC power supply system and power supply technology, applied in control/regulation systems, DC power input conversion to DC power output, electrical components, etc., to achieve the effect of improving power consumption efficiency and filtering burr harmonics

Pending Publication Date: 2022-05-27
青岛汉泰智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing technology can no longer meet the needs of people at the present stage. Based on the current situation, there is an urgent need to reform the existing technology

Method used

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  • Direct-current power supply system and control method

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by persons of ordinary skill in the field of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] refer to figure 1 On the one hand, in the preferred embodiment of the present invention, the DC power supply system includes: a power supply main control module, a power correction module, a control circuit, a signal processing circuit and an output sampling module;

[0040] The power main control module is used to supply power to other modules or circuits, drive the triode VT2 and the MOS transistor Q2, control the conduction time of the MOS trans...

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Abstract

The invention discloses a direct-current power supply system and a control method, and the system comprises a power correction module which comprises a voltage detection unit, a drive control unit, a power signal output unit, and a partial voltage detection unit. The power correction module detects the voltage output by a boost rectification circuit of the signal processing circuit through a voltage detection unit, and detects the partial voltage of a partial voltage detection circuit of the signal processing circuit through a partial voltage detection unit, thereby doubly determining that the voltage value output by the signal processing circuit is 400V, and reducing the generation of harmonic waves. The direct-current power supply system further comprises a power supply master control module which comprises a power supply unit, a starting unit, an oscillation driving unit, an external voltage feedback unit and a current sampling control unit. The power supply master control module adjusts the output voltage of a transformer of the output sampling module by controlling the conduction time of an MOS tube in a drive circuit of the output sampling module, and accurately controls the output of a current value and a voltage value.

Description

technical field [0001] The invention relates to the technical field of direct current power supply, in particular to a direct current power supply system and a control method. Background technique [0002] The DC power supply is an energy conversion device, which converts other forms of energy into electrical energy supply circuits to maintain the steady flow of current. In the circuit design process of the DC power supply, it is necessary to convert the AC signal input from the mains into a DC signal , but when the circuit processes the output voltage or output current, there is the input of the AC signal, so the AC signal needs to be processed many times. The current DC power supply technology has the following problems: [0003] The DC signal output by the DC power supply has harmonics of different amplitudes, so that the output DC signal is not a smooth straight line; [0004] When the DC power supply outputs voltage or output current, there is a certain error, which wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158H02M1/08H02M1/14H02M1/36
CPCH02M3/158H02M1/08H02M1/14H02M1/36Y02B70/10
Inventor 李明远郝春华
Owner 青岛汉泰智能科技有限公司
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