Q. about circuit of step up converter (attached with it) .
we are doing 6V to 12V,1A with that circuit.and just replacing both transistors by IRF640 N CH.POWER MOSFET.
basic circuit shown is from datasheet of lm3524 pwm IC page no 8.
1.how to calculate the value of resistance 1k and 2k before and after diode d1..