ROHM Semiconductor – BD9227F: The Industry’s First DC/DC Converter Capable of DC Fan Motor Speed Control

Pg28_ROHM_thumb

The BD9227F is the industry’s first power supply IC capable of controlling the rotational speed of DC fan motors with high accuracy by linearly varying the output voltage based on the PWM duty signal generated by the MCU. In addition to more accurate control compare to conventional discrete configurations, ROHM’s proprietary IC analog circuit design […]