1. Classification By Input And Output Type:

• AC-DC power module:

Converts AC power to DC power, widely used in various electronic devices that require DC power supply, such as computers, communication equipment, industrial control equipment, etc. The common AC-DC power adapter is a typical AC-DC power module.

• DC-DC power module:

Converts one DC voltage to another DC voltage, which can be divided into boost type (Boost), buck type (Buck), buck-boost type (Buck-Boost), etc. In portable devices such as mobile phones and tablets, DC-DC power modules are used to convert battery voltages into different voltages required by various chips and circuits.

• DC-AC power module:

Converts DC power to AC power, commonly used in uninterruptible power supplies (UPS), solar inverter systems, etc., converting the power provided by batteries or other DC power sources into AC power to meet the needs of AC loads.

2. Classification By Isolation Method:

• Isolated Power Module:

The input and output are electrically isolated by isolation components such as transformers, which has good electrical safety and can effectively prevent electrical faults on the input side from affecting the output side equipment. It can also suppress common mode interference. It is widely used in industrial control, medical equipment and other fields with high requirements for electrical isolation.

• Non-isolated power module:

There is no electrical isolation between the input and output, the structure is relatively simple, the cost is low, but the safety and anti-interference ability are relatively weak. It is often used in consumer electronic products that are cost-sensitive and do not require high electrical isolation.