Switching power supply circuit and switching power supply
A switching power supply circuit and switching power supply technology, applied in the field of industrial manufacturing, can solve the problems of low precision and conversion efficiency, poor performance of switching power supply, etc.
Active Publication Date: 2020-10-23
ZHUHAI GREE INTELLIGENT EQUIP CO LTD +1
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- Application Information
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Problems solved by technology
However, the performance of the switching power supply in the related art is relatively poor, which is specifically manifested in that its precision and conversion efficiency are relatively low
Method used
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[0059] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.
[0060] figure 1 It is a schematic structural diagram of a switching power supply circuit shown according to an exemplary embodiment. A switching power supply circuit, applied to a switching power supply, comprising: a rectifier bridge 101, a power factor correction circuit module 102, and a resonant conversion circuit module 103;
[0061] The first end of the rectifier bridge 101 is us...
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The invention relates to a switching power supply circuit and a switching power supply. The switching power supply circuit comprises a rectifier bridge, a power factor correction circuit module and aresonance conversion circuit module. The rectifier bridge is used for connecting AC power supply; A second terminal of the rectifier bridge is connected with a first terminal of the power factor correction circuit module for converting an AC voltage signal into a DC voltage signal and supplying the AC voltage signal to the power factor correction circuit module; The second end of the power factorcorrection circuit module is connected with the first end of the resonant conversion circuit module, for making the current follow the voltage conversion and performing the step-up operation, and supplying the boosted DC voltage signal to the resonant conversion circuit module The second end of the resonant conversion circuit module is connected with the output common end of the switching power supply, and is used for generating resonance, performing efficient DC voltage conversion and transmitting the converted DC voltage signal. A switch power supply circuit or a switching power supply in that invention can realize the voltage conversion of high power factor and high efficiency.
Description
technical field [0001] The present application relates to the field of industrial manufacturing, in particular to a switching power supply circuit and a switching power supply. Background technique [0002] In the field of industrial manufacturing, switching power supply can provide stable and reliable voltage for electrical equipment. Many common industrial electrical equipment require 24V DC power supply. [0003] With the development of industrial manufacturing automation and informatization, higher requirements are placed on the accuracy and quality of switching power supplies for industrial electrical equipment. However, the performance of the switching power supply in the related art is relatively poor, specifically manifested in that its precision and conversion efficiency are relatively low. Contents of the invention [0004] In order to overcome the problems in the related art at least to a certain extent, the present application provides a switching power supply...
Claims
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IPC IPC(8): H02M7/155H02M1/08H02M1/42H02M1/14
CPCH02M1/083H02M1/14H02M1/42H02M7/1555Y02B70/10
Inventor 沈显东宋明岑韩烨周海民师保利
Owner ZHUHAI GREE INTELLIGENT EQUIP CO LTD