Fans Solution:

Introduction:

Megawin's Hall-Sensor Fan solution adopts CGH021A as the main control MCU.  This solution is with Hall element and built-in hardware MDE to handle the high-speed operation, with a built-in 40V P/N Gate-Driver, can be applied to ceiling fan, standing fan, air purifier, etc.

Features:

 - Embedded 40V P/N Gate-Driver
 - Embedded 5V LDO
 - Embedded hardware MDE(Motor Driving Engine), can reduce code size, RAM size and calculating pressure

   * Support Space Vector PWM (SVPWM), programmable Dead-time, Over-Current Protection
   * Support 1 or 3 phase Hall-input
   * Support sinewave and square wave control
 - Protection function: Over / Under Voltage, No-load, Over Current, Over temperature
 - Speed closed/open feedback control, Limited current control
 - Turn on / turn off the fan  and control fan speed

Applications:

Block Diagram:

Related Products: 

BLDC Base Line: https://www.megawin.com.tw/zh-TW/products-sub/BLDC-Base-Line

CGF021A: https://www.megawin.com.tw/product/CGH021A

Technical Support Files : (Please click to download)

1. ReferenceDesign Document

2. Hardware File

3. Firmware File

4. BOM List