I’m tying to understand boost and buck converter designs. Recently I made a prototype of a simple boost converter, used this as a reference. Used parts are as follows:
- Transistor – IRF3205
- Diode – STPS1545CT
- Inductor – T80-6 core with 25 windings of 1mm wire.
- PWM Source – Arduino Leonardo
PWM Duty cycle is set to 60%, frequency 70kHz.
It boost 12V input up to 40V. But transistor dissipates to much heat. Are there any issue I have to take into account? What is the reason for such power dissipation?