Circuit Archives

Linear Circuits/ Signal Generators

Pulse Width Modulator

Reprinted with permission from Rudolf Graf.
For this and over 1000 other electronic circuits, review and order Rudolf Graf's Encyclopedia of Electronic Circuits on CD-ROM Vol-1 McGraw-Hill ISBN0078528119

FA55-11

Description: Pulse Width Modulator

The threshold voltage, and thereby the time delay, of a free-running oscillator is shown modulated with a triangular-wave modulation signal; however, any modulating wave-shape could be used. (Courtesy of Texas Instruments Incorporated. Linear Control Circuits Data Book. Second Edition, p. 288.) From figure FA55-11 of Encyclopedia of Electronic Circuits on CD-ROM Vol. 1.