Circuit Design of 70W DC-DC Synchronous Rectifier Converter

GW MB10F 0.8A 1000V rectifier bridge

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

Summary:

The 70W converter uses many of the integrated features of DPA-Switch. In particular, it does not require an external current sensing element. In the design of a separate device, an expensive current transformer and some external components are required, which greatly increases the cost of the converter.

design feature

• Very few components
• High efficiency - up to 90% efficiency with synchronous rectification
• No current sense resistor or current transformer requirements
• Output overload, open loop and over temperature protection
• Accurate input undervoltage/overvoltage meets ETSI standards
• 300 kHz switching frequency - optimized efficiency with simple self-driven synchronous rectification

5V, 14A DC-DC converter circuit diagram

See the uploading documentation for details (click to download)