Self-excited variable frequency soft switching power supply module

A power module, frequency conversion technology, applied in the direction of electrical components, adjusting electrical variables, high-efficiency power electronic conversion, etc., can solve the problems of large power supply, low reliability, high cost, etc., achieve wide temperature range, small size, volume Reduced effect

Pending Publication Date: 2018-10-19
AEROSPACE CHANGFENG CHAOYANG POWER SUPPLY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These two forms of power supply have the problems of large volume, low efficiency, low reliability and high cost

Method used

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  • Self-excited variable frequency soft switching power supply module
  • Self-excited variable frequency soft switching power supply module

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] see Figure 1-2 , the present invention provides a technical solution: a self-excited variable-frequency soft-switching power supply module, including an outer shell 1 and pins 2; the inside of the outer shell 1 is respectively isolated and designed with a transformer, an output inductance circuit, an auxiliary winding circuit, The switch transistor and the output diode, and the transformer, the output inductance circuit, the auxiliary winding circuit, ...

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Abstract

The invention discloses a self-excited variable frequency soft switching power supply module which comprises an outer casing and a pin. A transformer, an output inductor circuit, an auxiliary windingcircuit, a switching transistor and an output diode are separately designed in the outer casing, and the transformer, the output inductor circuit, the auxiliary winding circuit, the switching transistor and the output diode are orderly connected through conductive wires. At least four groups of pins are set, and access ends of the pins are electrically connected to the output diode, and the pins are away from a bottom plate whose input end penetrates the outer casing and extends to the outside of the outer casing. According to the self-excited variable frequency soft switching power supply module, with a minimum volume, the conversion of DC300V to DC5V and output are achieved, the no-load power consumption is reduced, stable and reliable output is achieved with minimum components, and thereliability of a power supply is improved. The module meets the requirements of various DC loads. At the same time, the components of the module can meet a wide temperature range and meet the requirements of military standards.

Description

technical field [0001] The invention relates to the technical field of switching power supply modules, in particular to a self-excited variable frequency soft switching power supply module. Background technique [0002] Normally, the pulse width modulator of the main control chip of the module is purchased abroad. This design does not use imported pulse width modulation chips, so it is not threatened by foreign technology blockades during wartime. Power modules with input DC200-400V power 5W-10W are widely used, but most of them are manufactured in the form of circuit board power supply of discrete devices, or are used by high-power modules with low power to finally reach the output of DC200-400V input power 5W. These two forms of power supply have the problems of large size, low efficiency, low reliability and high cost. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a self-excited variable frequency soft-sw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H05K5/02
CPCH02M3/33523H05K5/0213Y02B70/10
Inventor 孙志鹏
Owner AEROSPACE CHANGFENG CHAOYANG POWER SUPPLY
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