The function of isolating power modules

First， Isolation

1, safety isolation: strong current weak current isolation IGBT isolation drive surge isolation protection lightning isolation protection (such as human contact medical electronic equipment isolation protection);

2, noise isolation: (analog circuit and digital circuit isolation, strong and weak signal isolated power supply system.

3, grounding loop elimination: remote signal transmission distribution of medical electronic equipment isolation protection);

Second，Protection

Short circuit protection, over voltage protection, under voltage protection, over current protection, other protection.

Three, voltage transformation

Boost conversion, step-down conversion, AC/DC conversion (AC/DC, DC/AC), polarity conversion (positive and negative polarity conversion, single power supply and positive and negative power supply conversion, single power supply and multiple power supply conversion), among which AC/AC isolation power module generally uses transformers.

Four, stable pressure

Ac mains power supply, remote DC power supply, distributed power supply, and system battery power supply.

Five, noise reduction

Active filter.

The isolator is a linear optocoupler isolation principle, the input signal conversion output. The input, output and working power supply are isolated from each other, especially suitable for use with the equipment and instruments that need electrical isolation. Isolator, also known as signal isolator, is an important part of industrial control system. It is mainly used to reduce the transmission of shock and vibration.

For more knowledge about isolation power module, you can consult Zou Gong, senior design engineer of Shenzhen YLZ Technology Co., LTD.