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Power source supplier and output voltage stabilizer of switching power source supplier

A technology of power supply and output voltage, which is applied in the direction of conversion of AC power input to AC power output, conversion of AC power input into DC power output, and output power conversion device, which can solve problems such as overshoot and sparks

Inactive Publication Date: 2006-02-15
DELTA ELECTRONICS INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the output voltage of the power supply may overshoot when activated and sparks may be generated

Method used

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  • Power source supplier and output voltage stabilizer of switching power source supplier
  • Power source supplier and output voltage stabilizer of switching power source supplier
  • Power source supplier and output voltage stabilizer of switching power source supplier

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Embodiment Construction

[0021] The best mode for carrying out the invention will be described below. figure 1 A circuit structure diagram of a switching power supply according to an embodiment of the present invention is shown. Such as figure 1 As shown, component symbol 11 represents an electromagnetic interference filter (EMI filter) that can be used to attenuate noise signals that appear between power lines extending from an AC power supply, and component symbol 12 represents that it can rectify the input AC voltage Vac into DC A full-wave rectifier of the voltage Vdc (full-wave rectifier), a component symbol 13 represents a switching device, such as a power metal oxide semiconductor field effect transistor (power MOSFET), which applies the DC voltage Vdc to a switching transformer 14 The primary winding side (primary winding side) to generate a high-frequency AC voltage therein, a component symbol 14 represents a switching transformer, which generates an AC voltage on its secondary winding (seco...

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PUM

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Abstract

An output voltage stabilizer for a switching power supply is composed of a voltage comparator for comparing a DC voltage with a reference voltage to generate an output signal according to the result, and a control switch receiving the output signal of comparator to control own on / off state for stabilizing the output voltage of power supply.

Description

technical field [0001] The present invention relates to a voltage regulator for smoothly turning on and off a switching power supply, and more particularly, the present invention relates to a power supply and a voltage regulator thereof, by eliminating The power jump on the output voltage of the power supply is used to stabilize the output voltage of the switching power supply. Background technique [0002] A power supply is generally used to convert commercially available AC power into DC power for an electrical device to use. The switching technique used in power supplies in personal computers is based on the use of switching operations of switching devices to provide DC output voltages of various predetermined levels. This type of power supply is generally called a switching regulator (switching regulator) or a switching mode power supply (SMPS). [0003] However, the power quality of a switching power supply is often determined by its ability to eliminate sudden interf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M5/453G05F1/46H02M7/00
Inventor 雅各瓊哈艾威派雅风邦罗恩沙瓦德
Owner DELTA ELECTRONICS INC