Monostable-multivibrator


Posted on May 4, 2012

The circuit illustrates the usefulness of the HA-5151 as a battery-powered monostable. In this circuit, the ratio is set to .632, which allows the time constant equation to be reduced to: T=R1*C1. D2 is used to force the output to a defined state by clamping the negative input at +0.6 V. Triggering is set by C1, R3, and D2.


Monostable-multivibrator
Click here to download the full size of the above Circuit.

An applied trigger pulls the positive input below the clamp voltage, +0.6 V, which causes the output to change state. This state is held because the negative input cannot follow the change because of R,. C,. This particular circuit has an output pulse width set at approximately 100 us. Use of potentiometers for R1 and variable capacitors for C, will allow for a wide variation in T.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

20 & 30 Segment LED Voltmeters
15 Watt switching power supply
600 Watt Mosfet Power Amplifier with PCB Schematic Diagram
Logic Probe with Pulse Indicator Circuit
digital led voltmeter circuit
Sequencer circuit
Measuring the differential pressure sensing bridge circuit diagram
Basic circuit diagram of a 2.4 GHz radio system-on-chip CC2430
F733 integrated amplifiers common emitter - common base wideband amplifier circuit



Top