Copy of Voltage controlled Pulse Width oscillator

0
Favorite
0
copy
Copy
834
Views
Copy of Voltage controlled Pulse Width oscillator

Circuit Description

Graph image for Copy of Voltage controlled Pulse Width oscillator

Circuit Graph

This circuit allows to create a variable pulse-width signal. It is based on the famous 555 timer that generates a square signal at around 48kHz. An operational amplifier compares the voltage across the capacitor in the 555 circuit and compares it to a voltage set by a voltage divider with a potentiometer (R3). This allows to change the duty cycle from 0 to 100% (it is reversed wrt the potentiometer, ie. 100% pot = 0% duty cycle, 0% pot = 100% duty cycle).

There are currently no comments

Creator

jbittle

1 Circuit

Date Created

6 years, 1 month ago

Last Modified

6 years, 1 month ago

Tags

  • 555
  • oscillator
  • circuit fundamentals
  • duty cycle
  • variable
  • voltage controlled
  • pulse-width

Circuit Copied From