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I want to build a step up dc - dc converter to run some amps in a car. Therefore it would need to step 12 volts dc up to about +/- 20 volts dc, and provide about 2-4 amps per rail.
Can anyone offer suggestions on what type of transformer, mosfets and switching arrangement I would need.
What sort of waveform needs to enter the primary of the transformer (square/sine/modified sine) and how is this acheived. What is the most suitable frequency of switching.
My idea was to build a sinewave generator, and pump this signal into a circuit or PIC to provide the mosfets a PWM signal which varied in duty cycle according to the sine wave, thus effectively providing the primary with a sine wave.
Can anyone offer suggestions on what type of transformer, mosfets and switching arrangement I would need.
What sort of waveform needs to enter the primary of the transformer (square/sine/modified sine) and how is this acheived. What is the most suitable frequency of switching.
My idea was to build a sinewave generator, and pump this signal into a circuit or PIC to provide the mosfets a PWM signal which varied in duty cycle according to the sine wave, thus effectively providing the primary with a sine wave.