Re: Flyback power supply design

LVMarc wrote:

Marcin Osiniak wrote:

Hi

Do you know any sites, where I can find info how properly design a low power (about 5W) flyback power supply? I add that I'm beginning with switchmode power supplies.



Most of te semiconductor houses now have online or downloadable circuit cimulators and tools. For switch mode power supplies Linear technology is a well known suplier and they have a LT switcher tool. so may as well start there.

The key to all switchmode is sizing the inductor for correct value at full current load (current de-magnetizes the coil, saturation effets) and then sizing the capacitors to limit ripple. The rest is finese. You wil also nee a good supply of schottky diodes tha also handle peakswitch mode currents.

If you need help for a commmecial product let me now and our group will put together a professinal supply and source the materials you neeed along with manufatring acument.

IN any event have fun and good luck

Marc
BUT.
*ALL* of them are totally useless for (truly) high voltage output (say 400V to 40,000V).
These daze, "high" voltage is anything over 30V...
.

Relevant Pages

  • Re: Flyback power supply design
    ... where I can find info how properly design a low power flyback power supply? ... For switch mode power supplies Linear technology is a well known suplier and they have a LT switcher tool. ... The key to all switchmode is sizing the inductor for correct value at full current load and then sizing the capacitors to limit ripple. ...
    (sci.electronics.design)
  • Re: Flyback power supply design
    ... where I can find info how properly design a low power flyback power supply? ... The key to all switchmode is sizing the inductor for correct value at full current load and then sizing the capacitors to limit ripple. ... *ALL* of them are totally useless for high voltage output. ... "high" voltage is anything over 30V... ...
    (sci.electronics.design)