Industrial Power Supply

1. Application Scenarios

Industrial power supply provides stable DC power for industrial equipment, including rail power supply, module power supply, customized power supply, etc., with a power range of 50W-10kW, widely used in industrial control, communication, railway and other fields.

2. The Role of the Product in the System

Product Category	System Function
Rectifier bridge	AC input rectification provides DC bus for PFC stage
PFC diode (SiC/FRD)	PFC boost diode
Fast recovery diode	Output rectification or RCD absorption circuit
SBD (Schottky)	Low voltage high current output rectification (<200V)

3. Recommended Product Model

Product Category	Recommended Series/Model	Key Parameters
Surface mount/direct insertion rectifier bridge	MBxS/GBU series (2A-35A/600V-1000V)	Small size, suitable for high-density design
SiC diode	650V（4A–20A）	PFC level efficient solution
Fast recovery diode	FRxx series (600V/1200V)	TRR fast, suitable for high-frequency rectification
SBD (Schottky)	100V–200V SBD（5A–40A）	Low voltage output rectification, VF low

4. AC/DC Module Application

● Full bridge/half bridge module power supply usually adopts a two-stage scheme: PFC (AC/DC)+isolated DC/DC

● Recommend SiC diode+super junction MOSFET high-frequency solution to improve power density

5. Application of PFC Circuit

● Industrial power PFC mainly adopts critical conduction mode (CrM) or continuous conduction mode (CCM) Boost PFC

● Recommend SiC SBD+SJ-MOSFET combination, supporting 100kHz+switching frequency

6. Common Customer Needs

Demand	Our Response
The power supply must pass the 80PLUS Gold/Platinum certification	Provide a complete set of high-efficiency PFC+DC/DC solutions
Standby power consumption should be less than 0.5W	Recommend low static current MOSFET and optimized driver
To meet EN 55032 Class B EMI requirements	Recommend soft recovery diodes to reduce EMI
Poor heat dissipation of rail power supply	Recommend low VF SBD and low Rds (on) MOSFET to reduce heat generation