Explain the working principle of a regulated power supply. What is the role of Zener diode in it ?
Asked by pratikbharadia | 30th Dec, 2009, 11:51: AM
There are many types of power supply. Most are designed to convert high voltage AC mains electricity to a suitable low voltage supply for electronics circuits and other devices. A power supply can by broken down into a series of blocks, each of which performs a particular function.
For example a 5V regulated supply
Each of the blocks is described in more detail below:
- Transformer steps down high voltage AC mains to low voltage AC.
- Rectifier- converts AC to DC, but the DC output is varying.
- Smoothing smooths the DC from varying greatly to a small ripple.
- Regulator- eliminates ripple by setting DC output to a fixed voltage.
Answered by | 30th Dec, 2009, 01:40: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number