Switch power supply

Switch power supply

  • CN 1,282,146 A
  • Filed: 07/27/2000
  • Published: 01/31/2001
  • Est. Priority Date: 07/27/1999
  • Status: Abandoned Application
First Claim
Patent Images

1. Switching Power Supply, it comprises:

  • Induction coil, an one terminal are connected to primary side DC (direct current) power supply,Switch element, it is connected to another terminal of described induction coil,Rectifier smoothing circuit, it is connected to the described another terminal of described induction coil, andZener diode, it is connected to the output of described rectifier smoothing circuit, whereinUtilize described switch element to be switched on or switched off the electric current that flows through described induction coil, so that the DC that obtains to boost exports, andThe described induction coil side internal resistance of seeing by described rectifier smoothing circuit is used as series resistance, and the latter absorbs voltage fluctuation so that stablize the required voltage drop of DC output voltage in order to produce described Zener diode.

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