2 Channel PWM

242

03:37:45

Common mode 2 channel pulse-width modulator.  Designed for single chip construction using the LM339 Quad Comparator.

The first two comp.'s generate a symmetrical linear triangular wave and the other two compare that with the voltages set by each of  the adjustable voltage dividers.

published 9 years ago

jpoulin0901

9 years ago

Upon closer inspection of the 339's datasheet, I realized this chip only has open collector outputs. Oops.

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