Square-wave modulator has variable frequency and pulse width


Posted on Aug 7, 2012

The circuit in Figure 1 satisfies all these criteria. The circuit delivers a unipolar (adjustable from 0 to 12V) pulse with adjustable frequency and pulse width. The first half of a dual, retriggerable monostable multivibrator, IC1A, generates the frequency of the pulse train. The 100-k potentiometer, R1, along with R2 and C1, sets the adjustable frequency. R3, R4, and C2 set the adjustable pulse width in the second section of the multivibrator, IC1B.






Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Micro Power FM Broadcasting
50 MHz range frequency counter using ATtiny45 microcontroller
usb powered lithium ion battery charger
buzzer set
Automatic Light Dimmer
SOURCE-ONE ANALOG SYNTHESIZER and Resistance Serving Control Voltage 8-step Sequencer Unit
Electronic potentiometer circuit composed of digital circuits



Top