About AC-DC Converter Pricelist

An AC DC converter refers to a power device that converts alternating current to direct current. Simply put, it is a switching power supply. The MOS tube works on the principle of PWM, generates waveform changes, and then converts the voltage through the transformer, and then commutates the output. Converting alternating current to direct current is called rectification, and converting direct current to alternating current is called inversion.

Potting and sealing of AC DC power modules is very important. This process involves not only the protection of AC and DC power modules (waterproof, moisture-proof, dust-proof, anti-corrosion, etc.), but also the thermal design of AC and DC power modules.

Power module potting materials are generally divided into three categories: epoxy resin, polyurethane, and silicone rubber

Due to the hardness of epoxy resin, it cannot be used for stress-sensitive and module packaging and SMT components, so it is basically eliminated in module power supplies. But epoxy resins are also used in cost-critical micropower power supplies due to their low cost. Some domestic bad power supply manufacturers also use this epoxy resin for AC and DC power supply modules, but due to stress problems, the failure rate of this power supply is very high, and buyers are very distressed.