Low Power CMOS PWM Circuit With Buffer Output Requires Only 5 Components 2017-02-09

PWM (Pulse Width Modulation) is frequently used for efficient control of DC voltage or current.
Here's a simple, low-power circuit to generate a PWM signal that requires only 1 CD4093 NAND CMOS chip, 1 potentiometer, 2 diodes, and 1 capacitor.
The pot provides for adjustment of the duty-cycle.

The microwatt power consumption is desirable for any small battery powered circuits that use PWM.
It's similar in operation to some designs of a 555 timer PWM circuit but consumes much lower power...

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crutschow said:

crutschow submitted a new article:

Low Power CMOS PWM Circuit Requires Only 5 Components - CD4093 PWM circuit uses only 2 diodes, 1 capacitor, and 1 potentiometer

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