For the three-phase low-voltage fan motor drive solution, Cmsemicon launched a cost-effective low-voltage fan solution. The scheme adopts SVPWM space voltage vector modulation technology, which has smaller harmonic components and torque ripple, and the peripheral circuit is simplified, providing a complete solution.
> Integrate 12Bits high-speed ADC, multiple high-performance analog operational amplifiers and programmable PGA, P+N drive, streamline peripheral circuits
> Non-inductive FOC, dual resistance control mode
> Self-convergence and direct closed-loop startup algorithm, adapt to different load startup, 100% startup success
> Good start effect in forward and backward wind, fast and stable start, no out of step, smooth operation and low noise
> Constant speed control
> Standard output interface: FG, Vsp (or PWM), VCC, GND
Demonstration of DC fan control scheme, including graphic control platform such as motor and touch