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Switching power supply controlled by single-chip microcomputer

A single-chip control, switching power supply technology, used in electrical components, energy industry, sustainable manufacturing/processing, etc., can solve problems such as equipment interference, and achieve the effects of simple control, high integration, and strong functions

Inactive Publication Date: 2013-03-20
杨加珍
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because high-frequency voltage will be generated during the inverter process, it will have a certain interference effect on the surrounding equipment

Method used

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  • Switching power supply controlled by single-chip microcomputer

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Embodiment Construction

[0008] refer to figure 1 , the specific embodiment adopts the following technical solutions: it includes a rectification and filtering circuit 1, an auxiliary power supply circuit 2, a PFC correction circuit 3, a DC conversion circuit 4, a PWM control circuit 5, a single-chip microcomputer 6 and a protection circuit 7, and the 220V alternating current is respectively connected to the rectification and filtering circuit. The circuit 1 is connected to the auxiliary power supply circuit 2, the rectification and filtering circuit 1 is connected to the PFC correction circuit 3, the PFC correction circuit 3 is connected to the DC conversion circuit 4, the auxiliary power supply circuit 2 is connected to the PWM control circuit 5, and the PWM control circuit 5 is switched to the DC The circuit 4 is connected, the DC conversion circuit 4 is connected with the single-chip microcomputer 6, and the single-chip microcomputer 6 is connected with the PWM control circuit 5 and the protection ...

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Abstract

A switching power supply controlled by a single-chip microcomputer, relates to the technical field of the switching power supply. 220 V AC (alternating current) is respectively connected with a rectifier and filter circuit (1) and an auxiliary power supply circuit (2); the rectifier filter circuit (1) is connected with a PFC correction circuit (3); the PFC correction circuit (3) is connected with a DC converting circuit (4); the auxiliary power supply circuit (2) is connected with a PWM control circuit (5), and the PWM control circuit (5) is connected with the DC converting circuit (4); the DC converting circuit (4) is connected with the single-chip microcontroller (6); and the single-chip microcontroller (6) is separately connected with the PWM control circuit (5) and a protective circuit (7). According to the switching power supply, a control circuit composed of a single-chip microcomputer module is adopted; and under the support of detection and control software, via data sampling of the output current and voltage of the switching power supply and comparing the sampled data with given data, working condition of the switching power tube can thereby be regulated and controlled, and simultaneously the output current size is monitored to perform current control. The switching power supply has the characteristics of being programmable, powerful, easy to control, high in integration, etc.

Description

technical field [0001] The invention relates to the technical field of switching power supplies, in particular to a switching power supply controlled by a single-chip microcomputer. Background technique [0002] The existing switching power supply is to first rectify the alternating current into direct current, and then invert the direct current into alternating current. And because high-frequency voltage will be generated during the inverter process, it will have a certain interference effect on the surrounding equipment. Contents of the invention [0003] The purpose of the present invention is to provide a switching power supply controlled by a single-chip microcomputer, which adopts a control circuit composed of a single-chip microcomputer module, and under the support of detection and control software, compares the output current and voltage of the switching power supply with data sampling and given data. Adjust and control the working state of the switching power tu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/32H02M5/44
CPCY02P80/10
Inventor 杨加珍
Owner 杨加珍
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