Nearly half duty cycle multlvibrator


Posted on Dec 4, 2012

Three factors contribute to the output symmetry. The capacitor charges and discharges through the same external resistor. An internal resistive divider sets accurate switching thresholds within the chip, the bipolar types use dividers, as well. Most importantly, ICl`s CMOS output stage switches fully between ground and ICc, avoiding the errors from asymmetry that are often found in a TTL timer`s output.


Nearly half duty cycle multlvibrator
Click here to download the full size of the above Circuit.

The IC"s internal switchingthreshold tolerances can cause a deviation of several percent from the desired 50% duty cycle. To meet a tighter specification, you might have to select from a group of ICs.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Oscillator Design Guide Structure
Hardware design overview
stabilizer circuit
pic16f877 based controllable digital 25
project key
Heat Sensor
led array schematic
Spring Reverb
Tube 3TF7 Current Regulator
Voice amplifier transistor
Three temperature switch circuits



Top