smps help

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aruna1

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Hi I need to design a boost converter with following specs

Vin = 6-9V
Vout=12v
freq=100kHz

I intended to use TL494 PWM ic for this.
My question is;

I couldn't find any logic level mosfets , so how ca i use normal power mosfet for this? (because input voltage is 6V and I cannot turn on mosfet completely with 6V)
thank you
 
hi well searched for IRL540 and BS170 bt couldnt find any.and I dont know any other popular easy to find logic level mosfets
 
hi
i know that.thing is thoes results get from google is not available n my country.if you can please tell me some comman easy to find n channel logic level mosfets
thank you
 
aruna1; I am not familiar with your area or your supplyers but maybe in a pinch you can use a buffer to drive a higher voltage mosfet. Maybe you can use a transistor or and opamp. I hope someone can help you. Good luck Andy
 
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