Thyristor Chopper Circuits Objective Questions – 1

What is the expression for the value of the capacitor in the voltage commutation circuit? Let tc be the circuit turn off time and Io be the constant load current.

In a voltage commutated chopper circuit, the capacitor C can be charged to Vs by

The process of commutating a SCR by applying a reverse voltage to an SCR through a previously charged capacitor is called as

In case of current commutation of SCR

In the below given circuit, when the main thyristor T1 is triggered after charging the capacitor, the commutation current flows through the path

In the below shown voltage commutated chopper circuit, the chopper operation can only start when

In the below given circuit, when the main SCR T1 is commutated at t², the load voltage is

Below given circuit is a

In a voltage commutated SCR, the main SCR is commutated by

Which type of commutation circuit does not work on no load?