TECHNICAL KNOWLEDGE

TECHNICAL KNOWLEDGE


08

2024

-

04

Core Mao micro-synchronous rectifier chip product introduction and design points V1.1

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Xinmao Microelectronics (www.chip-hope.com) is a professional switching power supply chip manufacturer, focusing on the design, manufacture and packaging of AC-DC power management IC. Headquartered in Luohu, Shenzhen, the chip design center is in Shanghai. The company has a wholly-owned packaging factory (Hunan Hengyang Si Mao semiconductor), with the production of SOP7 ~ 24,QFN2x2 ~ 12x 12,TO220-6 and other advanced packaging capabilities.

Xinmao Microelectronics (www.chip-hope.com) is a professional switching power supply chip manufacturer, focusing on the design, manufacture and packaging of AC-DC power management IC. Headquartered in Luohu, Shenzhen, the chip design center is in Shanghai. The company has a wholly-owned packaging factory (Hunan Hengyang Si
Mao semiconductor), with the production of SOP7 ~ 24,QFN2x2 ~ 12x 12,TO220-6 and other advanced packaging capabilities.
The product line of power supply chips of Xinmao Microelectronics is very complete. It can provide customers with a series of full-category power management ICs such as PFC, LLC, forward excitation, flyback SSR, high frequency QR, flyback PSR, high voltage Buck, synchronous rectification chips for various topologies, DSP chips for digital power supply control, small motor drive chips, etc.

 

● Synchronous Rectification Overview
The secondary side of the switching power supply is mostly rectified by diodes. The forward voltage drop of the diodes is about 0.6V ~ 0.8V. If 12V3A is output, the rectification loss is 1.8W. If 5V10A is output, the loss is as much as 6W.

 

Core Mao micro-synchronous rectifier chip product introduction and design points V1.1.pdf