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Unread 23-12-2005, 12:52
Gdeaver Gdeaver is offline
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Re: Circuit design help - power supply - Non FIRST

This is outside of my expertise but, wouldn't putting a large inductor after a FET give the desired results? Monitor the voltage after the inductor. When the voltage gets close to 12 volts turn the FET off. When it drops to 6 volts turn it on. The feedback could be done with op amps or micro controller. The output would not be a true sine wave but good enough. The frequency would be variable to the load. Kind of a switching power supply with sloppy voltage control. As far as safety, one should have the mindset that it is going to blow and design the apparatus to handle it. Murphy's laws dictates in will blow at the most inopportune time.