Pulse drive transformer assembly for self-excited switching power supply converter

A technology of pulse drive and switching power supply, applied in transformers, fixed transformers, transformer/inductor coils/windings/connections, etc., which can solve the problems of simplified shared coils and complex problems.

Inactive Publication Date: 2010-09-15
王京申
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this time, the problem of "end with the same name" is slightly complicated, and sometim

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  • Pulse drive transformer assembly for self-excited switching power supply converter
  • Pulse drive transformer assembly for self-excited switching power supply converter
  • Pulse drive transformer assembly for self-excited switching power supply converter

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Embodiment Construction

[0135] The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings.

[0136] 5.1 Specific implementation methods 1, 2 magnetic cores full-wave rectification series feedback magnetic amplifier half-bridge pulse drive transformer assembly see Figure 17, As an example of the "series feedback connection mode" of the feedback coil (Nxfn), for the structural form of "2-core full-wave rectification series feedback magnetic amplifier half-bridge pulse drive transformer assembly", the pulse drive transformer assembly (3) consists of 2 The same magnetic cores (Ma) and (Mb) each having at least one closed magnetic circuit, and four kinds of wire coils wound on these closed magnetic circuits; these four kinds of wire coils are all according to the " Conventional winding method "winding, they are: the output coil (Nao) on the magnetic core (Ma) and the output coil (Nbo) on the magnetic core (Mb), they are according to the kn...

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PUM

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Abstract

The invention discloses a pulse drive transformer assembly for a self-excited switching power supply converter. The pulse drive transformer assembly (3) provides a drive signal for a power electronic switch assembly (Sk) in the self-excited switching power supply converter. By adopting a magnetic amplifier technology or a quadrature transformer technology, the power electronic switch assembly (Sk) driven by the pulse drive transformer assembly can normally work under an extremely-high amplitude direct current pulse power supply, so that the self-excited switching power supply converter finishes the filtering of a power supply alternating current input side of a commercial power grid without an electrolytic capacitor and generally meets the requirement without a power factor compensation (PFC). With the magnetic coupling current negative feedback action, the performance of the power electronic switch assembly (Sk) driven by the pulse drive transformer assembly is remarkably improved and the reliability of the complete machine can be improved. The invention has the advantages of low cost and high reliability and especially has remarkable benefits to energy-saving lamps and electronic ballasts.

Description

1 technical field [0001] The invention relates to a pulse-driven transformer assembly for a self-excited switching power supply converter. The general function of the pulse-driven transformer assembly (3) is to complete the positive feedback necessary for self-excited oscillation in a magnetic coupling manner, and Provide appropriate driving signals for the power electronic switch assembly (Sk) in the power switch topology unit (2) of the self-excited switching power converter (k is the serial number of the power electronic switch assembly represented by Arabic numerals, the same below). Due to the use of magnetic amplifier technology or orthogonal transformer technology, the power electronic switch component (Sk) driven by the pulse drive transformer component (3) can work normally when the severe DC pulsating power supply is supplied, so the self-excited switch The power converter does not need to use electrolytic capacitors to complete the filtering of the AC input side of ...

Claims

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Application Information

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IPC IPC(8): H01F30/06H01F27/30H01F27/28H02M3/338
Inventor 王京申
Owner 王京申
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