Question

Suppose you want to operate the DC motor as load which is connected with a rectifier circuit as drawn below. Write down the working principle of the following circuit. Draw the signal waveforms at different stages of working procedure. For your convenience, redraw the circuit and name the diodes as D1, D2, D3 and D4.

Answer 1

The rectifier circuit converts the AC voltage into a DC voltage for powering the DC motor. Diodes allow current to flow in one direction only. The signal waveforms would show the AC input, pulsating DC output, and steady DC voltage.

Step-by-step explanation:

The circuit diagram you provided shows a rectifier circuit connected to a DC motor. The rectifier circuit is responsible for converting the AC voltage from the source into a DC voltage that can be used to power the motor. It uses diodes (D1, D2, D3, D4) to allow current to flow in one direction only.

When the AC voltage is applied to the rectifier circuit, the positive half of the AC waveform allows current to flow through diodes D1 and D3, while the negative half allows current to flow through diodes D2 and D4. This effectively converts the AC voltage into a pulsating DC voltage.

The signal waveforms at different stages of the working procedure would show the AC input waveform, the pulsating DC waveform after rectification, and the steady DC voltage that powers the motor.