JPH0421186U

JPH0421186U -

Info

Publication number: JPH0421186U
Application number: JP6199090U
Authority: JP
Priority date: 1990-06-12
Filing date: 1990-06-12
Publication date: 1992-02-21

Description

[Brief explanation of the drawing]

第１図は、従来のスイツチング電源の基本回路
図、第２図、第４図、第５図、第６図は本考案の
実施例を示す回路接続図、第３図のＡ，Ｂは本考
案の動作を説明するための動作波形図。１……直流電源、２，１４……トランス、４，
１６……スイツチング素子、６，１８……整流用
ダイオード、７，２１……平滑用コンデンサ、８
，２２……電気的負荷、１０……コンデンサ、９
……ダイオード、１２，１９……制御回路、１３
，２０……駆動回路。 Figure 1 is a basic circuit diagram of a conventional switching power supply; Figures 2, 4, 5, and 6 are circuit connection diagrams showing embodiments of the present invention; An operation waveform diagram for explaining the operation of the invention. 1...DC power supply, 2,14...Transformer, 4,
16... Switching element, 6, 18... Rectifier diode, 7, 21... Smoothing capacitor, 8
, 22...Electrical load, 10...Capacitor, 9
... Diode, 12, 19 ... Control circuit, 13
, 20... Drive circuit.

Claims

[Scope of utility model registration request]

In a switching power supply consisting of a series circuit of a DC input power supply, a first switching element, and a first transformer or a first reactor, a polarity is connected to both ends of the first switching element so that the switching element is charged when it is off. A diode and a capacitor are connected in series, and a snubber circuit consisting of a series circuit of a second switching element and a second transformer or a second reactor is formed at both ends of the capacitor;
A switching power supply characterized by supplying the energy of the snubber circuit to a load.