Self oscillating flyback converter


Posted on Sep 2, 2012

Diode Dl prevents negative spikes from occurring at the MOSFET gate, the 100 ohm resistor is a parasitic suppressor, and Z1 serves as a dissipative voltage regulator for the output and also clips the drain voltage to a level below the rated power FET breakdown voltage.


Self oscillating flyback converter
Click here to download the full size of the above Circuit.

Low-power converter uses the core characteristics to determine frequency. With the transformer shown, operating frequency is 250 kHz.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

0-12V 2A power supply
Continuity tester for pcb
light dependent blinker using ldr and cd4093
Build A Digital Tachometer/RPM Counter Circuit
NE566 frequency modulator



Top