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Digital control alternating current stabilized voltage power supply

An AC stabilized power supply, digital control technology, applied in the direction of control/regulation system, adjustment of electrical variables, instruments, etc., can solve the problems of poor short-circuit capability, poor heat dissipation capability, etc., to achieve stable output voltage and meet output voltage stability the effect of the demand

Inactive Publication Date: 2016-05-18
曾庆东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the technical defects of poor overload and short-circuit capacity and poor heat dissipation of linear regulated power supply, the invention discloses a digitally controlled AC regulated power supply

Method used

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  • Digital control alternating current stabilized voltage power supply

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Embodiment Construction

[0012] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0013] The digital control type AC stabilized voltage power supply of the present invention comprises a triangular wave generating circuit and a controllable sine generating circuit, the output terminals of the triangular wave generating circuit and the controllable sine generating circuit are connected to a comparator, and the output terminal of the comparator is connected to the The electronic switch controls the connection, and the electronic switch drives the load through the LC filter bank, and also includes a voltage and current sampling module, which samples the output state of the load and then inputs it to the microprocessor, and the output of the microprocessor The terminal is controlled and connected with the controllable sine generation circuit through the AD conver...

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Abstract

The digital control alternating current stabilized voltage power supply includes a triangular wave generating circuit and a controllable sine generating circuit; an output ends of the triangular wave generating circuit and the controllable sine generating circuit are connected to a comparator; an output end of the comparator is controllably connected to an electronic switch; the electronic switch drives a load via an LC filter bank; the digital control alternating current stabilized voltage power supply also includes a voltage current sampling module; the voltage current sampling module samples the output state of the load, and the sampling result is input in a microprocessor; and an output end of the microprocessor is controllably connected to the controllable sine generating circuit through an AD converter. The digital control alternating current stabilized voltage power supply has the stable output voltage, can adapt output features of a switch power supply which takes the alternating voltage as the input voltage, and can meet the demands of an alternating current power supply converter for the stability of the output voltage.

Description

technical field [0001] The invention relates to the field of electronic circuits, in particular to a digitally controlled AC stabilized voltage power supply. Background technique [0002] At present, power supplies in space technology, computers, communications, radar and home appliances are gradually replaced by switching power supplies. The series-regulated regulated power supply generally used now is a continuously controlled linear regulated power supply. This traditional series voltage regulator and adjustment tube always work in the amplification area, and the current flowing through it is continuous. The disadvantage of this kind of voltage regulator is that it has poor ability to withstand overload and short circuit, and its efficiency is low, generally only 35%~ 60%. Because the adjustment tube will consume a large amount of power, it is necessary to use a high-power adjustment tube and a large radiator. [0003] The adjustment tube of the switching power supply ...

Claims

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Application Information

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IPC IPC(8): G05F1/12
Inventor 曾庆东
Owner 曾庆东
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