What Is an AC-DC Power Supply?

Devices capable of forming a constant current in the circuit, such as dry batteries, batteries, DC generators, etc., are called DC power sources. The DC power supply has two positive and negative electrodes. The potential of the positive electrode is high and the potential of the negative electrode is low. When the two electrodes are connected to the circuit, the DC power supply can maintain a constant potential difference between the two electrodes, thereby forming a positive electrode to a negative electrode in the external circuit. Constant current. In order to keep the potential difference between the two poles of the DC power supply constant, the positive charge flowing from the positive electrode to the negative electrode in the external circuit must be returned from the negative electrode to the positive electrode inside the power supply against the direction of the electric field force. This process cannot be achieved by electrostatic force, but only by some kind of "non-static force" opposite to the direction of the electrostatic force.

AC-DC Power Module

I. Isolation:

1. Safety isolation: strong current and weak current isolation \ IGBT isolation drive \ surge isolation protection \ lightning isolation protection (such as the isolation and protection of medical electronic equipment in contact with human body)

2. Noise isolation: (Isolation of analog and digital circuits, isolation of strong and weak signals)

3. Ground loop elimination: remote signal transmission \ distributed power supply system

Protection: short circuit protection, over voltage protection, under voltage protection, over current protection, other protection

Third, the voltage conversion: step-up conversion \ step-down conversion \ AC / DC conversion (AC / DC, DC / AC) \ polarity conversion (positive and negative polarity conversion, single and positive and negative power conversion, single and multiple power conversion )

Fourth, voltage stabilization: AC mains power supply \ remote DC power supply \ distributed power supply system \ battery power supply

V. Noise Reduction: Active Filtering