Mechatrofice

555 Multivibrator calculator – Astable, Monostable

555 Timer Astable Multivibrator Calculator

555 timer astable multivibrator calculator

Calculate using the values of Resistance RA, RB and Capacitance C as inputs.

" Finding output values of the astable multivibrator from circuit component values".

In kΩ (ohms)

ms

In milliseconds

Hz

In Hertz
In kΩ (ohms)

ms

In milliseconds

%

In Percentage
In μF (microfarad)

ms

In milliseconds

Calculate using the values of ON time and OFF time as inputs.

" Finding required component values from the desired output values ".

In seconds
In seconds

s

kΩ

Hz

In Hertz

kΩ

%

In Percentage
In μF (microfarad)

555 Astable Multivibrator With Diode

In the above astable multivibrator circuit duty cycle of 50% or less than that cannot be generated. So in order to produce a square wave with a duty cycle less than 50%, the circuit is modified by adding a diode D across the resistor RB.

555 astable multivibrator with diode calculation

555 Monostable Multivibrator Calculation

555 monostable multivibrator circuit