An SMPS (Switched-Mode Power Supply) is a type of power supply that is more efficient and lighter than traditional linear power supplies. It works by converting electrical power efficiently from one form to another. Here’s how it generally operates:
Basic Operation of SMPS
1. **Input Stage**:
- The AC voltage from the power source is first rectified and filtered, converting it into DC voltage. This is often done using a transformer and a rectifier circuit.
2. **Switching Stage**:
- The DC voltage is then switched on and off at a very high frequency (typically ranging from 20 kHz to several hundred kHz). This is usually accomplished using a transistor or a MOSFET. The high-frequency switching...