Double-path rectification power supply module

A rectifying power supply and circuit technology, applied in the direction of electrical components, adjusting electrical variables, converting DC power input to DC power output, etc., can solve problems such as high noise, large output ripple, and influence on electric precision electronic instruments, so as to improve performance , reduce output ripple and noise, and stabilize the effect of circuit output

Inactive Publication Date: 2019-07-09
西安鲲创科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Switching power supply is a prerequisite for the normal operation of electronic equipment. The quality of its output power will directly affect the use of electric precision electronic instruments. However, the power supplies produced by many domestic power supply manufacturers often have problems such as large output ripple and high noise.

Method used

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Embodiment Construction

[0028] The following will combine figure 1 , figure 2 , image 3 , Figure 4 The present invention will be described in detail.

[0029] like figure 1 As shown, a dual-channel rectification power supply module includes an AC-DC circuit and a DC-DC circuit, and the AC input terminal 8 of the circuit passes through the DC output terminal 9 of the AC-DC circuit and the DC-DC circuit in sequence;

[0030] The AC-DC circuit includes a first filter circuit 1, an uncontrolled rectification circuit 2 and a second filter circuit 3, and the AC input terminal 8 passes through the first filter circuit 1, the uncontrolled rectification circuit 2 and the second filter circuit 3 in sequence connecting said DC-DC circuit;

[0031] The DC-DC circuit includes a power conversion circuit 4, a third filter circuit 5, a main control circuit 6 and a feedback circuit 7, and the second filter circuit 3 is connected to the power conversion circuit 4 and the third filter circuit 5 in sequence. Th...

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Abstract

The invention provides a double-path rectification power supply module and belongs to the technical field of power electronics. The double-path AC-DC (Alternating Current to Direct Current) integratedpower supply module comprises an AC-DC circuit and a DC-DC circuit; an externally input AC is converted into a DC stably output after sequentially passing through the AC-DC circuit and the DC-DC circuit; the AC-DC circuit comprises a first filtering circuit, an uncontrolled rectification circuit and a second filtering circuit; and the DC-DC circuit comprises a power conversion circuit, a third filtering circuit, a main control circuit and a feedback circuit. According to the invention, by arranging the filtering circuits, the feedback circuit and the main control circuit, circuit output can be effectively stabilized; and particularly output common mode inductor and resistor newly added at the DC-DC circuit part can obviously reduce output ripples and noise of the power supply module and promote performance of the power supply module.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a dual-channel rectification power supply module. Background technique [0002] With the development of modern industrialization, the requirements for the working environment of precision electronic instruments are getting higher and higher, and various random noises will greatly affect or even damage the normal use of electronic equipment. Switching power supply is a prerequisite for the normal operation of electronic equipment. The quality of its output power will directly affect the use of electronic precision electronic instruments. However, the power supplies produced by many domestic power supply manufacturers often have problems such as large output ripple and high noise. Contents of the invention [0003] In view of this, the present invention provides a dual rectification power supply module, which can effectively stabilize the circuit output by setting the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/217H02M3/335H02M1/14
CPCH02M1/14H02M3/33523H02M7/2176H02M1/009
Inventor 范雨鸽
Owner 西安鲲创科技发展有限公司
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