What is semi controlled rectifier?

Answer 1

such a control rectifier that control or rectifier single phase. for that purpose we used SCR that is called single phase controlled rectifier.

Answer 2

I think you mean silicon controlled rectifier or SCR.

These are 4 layer devices made of N and P silicon in alternate layers and are an open circuit to the passage of current until a trigger pulse is applied to it's gate terminal.

The device then acts as a normal diode until the current falls below it's holding current whereupon it reverts to the open circuit state and waits for a subsequent trigger pulse.

SCR's are used in lamp dimming circuits and are often packaged as two in inverse parallel. These are called Triacs and can fully control an AC waveform.

Answer 3

A: It is a diode with an extra input TERMINAL called gate. This particular diode will not conduct not until there is current present at he gate or has reached forward breakdown voltage. It is actually called and SCR. It easily find applications in phase control of AC inputs Whereby the output power can be controlled by using the gate to make it conduct at a certain angle of the incoming AC

Answer 4

A Basic non controlled Rectifying circuit would employ single or multiple Diodes. either in a half wave, full wave or bridged full wave configuration. In a controlled rectifier the diode(s) are replaced by Thyristor(s). The Thyristor(s) with suitable circuitry these can be gated during any point in the AC input cycle thus allowing control of the DC output of the rectifier circuit.

Answer 5

A rectifier is an electrical device that converts alternating current, which flows in only one direction. The process is known as rectification.

Answer 6

that can be purely resistive or inductive

we can control in both cycle(+ or - ) of output current.