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A 2 parter: does anyone know of a pwm controller that can work with 1.5v? and! Does this section of the element14 community remain active for like general flyback discussion?

Anthocyanina

Now that the time constraints have been removed, I want to keep working on my portable chaos toy. I started by taking apart the tiny transformer (the hot air station made this super easy) to rewind it with two symmetrical secondaries.

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Now my goal is to power the converter with a rechargeable AAA battery, or if getting a low enough voltage pwm controller is not possible, a single 18650. So, does anyone know of a controller that can do that? 

And well, my second question is if this section remains active in the community, or if this should be used only for the challenge and I should take my questions elsewhere? 

Thank you!

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  • DRV8837CDSGR

    Is this what you are looking for? It can output any voltage although you would need to boost the input logic to 1.8V.

    There are small MCUs that will run down to 0.7V by using an internal voltage booster. Such as ATtiny43U, which could drive the H-bridge above with PWM.

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  • DRV8837CDSGR

    Is this what you are looking for? It can output any voltage although you would need to boost the input logic to 1.8V.

    There are small MCUs that will run down to 0.7V by using an internal voltage booster. Such as ATtiny43U, which could drive the H-bridge above with PWM.

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