A Switched Mode Power Supply (SMPS) is a high-efficiency power system commonly used in various electronic devices such as computers, mobile phone chargers, and televisions. Compared to traditional linear power supplies, SMPS features higher energy conversion efficiency as it converts input voltage into stable direct current output voltage using high-frequency switching.
The operation of an SMPS involves the periodic switching of a switch transistor to control voltage and current in the circuit to provide the required output voltage. This design allows SMPS to output stable voltage while being compact and lightweight, suitable for a wide range of electronic device requirements.
The advantages of SMPS include high efficiency, compact size, light weight, and stable output, making it a widely adopted power supply design in modern electronic devices. However, due to its complexity, issues such as electromagnetic interference may arise, requiring careful consideration during design and application.