Monostable Multivibrator Using Transistor Design. Monostable multivibrator or one shot multivibrator has only one stable state. R l1 r l2 the values of v bb and r 3 are such as to reverse bias q 1 and keep it at cut off.
As q 1 is off the collector voltage will be v cc at point a and hence c 1 gets charged. In this multivibrator one state is permanent stable state while the other state is temporary state. This is the stable state.
The output must be triggered on and it s only turns on once per trigger and then shuts off.
Op amp monostable multivibrator using op amp derivation. The output must be triggered on and it s only turns on once per trigger and then shuts off. The operation and output of the 555 timer monostable is exactly the same as that for the transistorised one we look at previously in the monostable multivibrators tutorial. It consists of two similar transistor q 1 and q 2 with equal collector loads i e.
