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I'm working on a stepper motor driver, most of the control will be handled by a PIC most likely a 16f887.
I want to simplify control of the H-bridge switches to use fewer pins and make programming easier for the PIC so I came up with the circuit below.
The H-bridge needs only a few signals...
ok well ive given this thing some more thought, and I realized I cant use my first idea because the TVS diodes on the H-bridge will look like a set of 2 TVS diodes in series between the high voltage and ground letting the TVS diodes absorb the pulse and not strike the lamp.
maybe someone here...
I'm in the process of designing a digital ballast for metal halide/high pressure sodium lighting.
I've found a fair amount of information online for the basic design of digital ballasts, a lot of good stuff in the form of app notes from various chip manufacturers.
The one area i'm having...
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