need help with transformer

AC-DC Adapter, Transformer, Lipo battery and charger, SLA, Cell battery.....

Re: need help with transformer

Postby tekiding » Thu Jun 07, 2012 7:48 pm

sorry to post another thread here :mrgreen:
ABSF WROTE:If you want a vibrating pillow, you should get ideas from the handphones vibration mode or the PS2 joystick.... 8-) like the link here:

HowStuffWorks "PlayStation Controller"
http://electronics.howstuffworks.com/playstation3.htm
Allen

just wandering...from the link above,how do i integrate with RTC :?:
tekiding
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Re: need help with transformer

Postby szhighstar » Sat Jul 14, 2012 11:05 am

in fact you can use samller toroidal core , which is power core, e.g. PC40, 3F3 and equivalent material, turns are depends on voltage, diameter of wire depends on Irms,core volume depends on power and frequency,keep enough safety distance between primary and secondary windings.
I am engineer who designs and develops magnetics components
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