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RE: Halogen filament low voltage questions???

Posted by Triode_Kingdom (A) on January 4, 2017 at 08:02:42

In Reply to: Halogen filament low voltage questions??? posted by TomWh on January 4, 2017 at 07:10:24:

I think the best solution will ultimately require replacing the oscillator circuit with one that's self-sustaining. A low-voltage oscillator also won't require such extreme step-down ratios, and the transformation will be more efficient.

Here's a circuit I threw together yesterday in SPICE. It creates a 2.5V RMS squarewave, and the frequency can be set to well above 100kHz. I don't mean for this exact configuration to be constructed and used, it's just an example to illustrate the direction I think this concept will need to go.

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