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2022-09-24 23:33:15
ECN3021SP - Motor Controller
ECN3021 is a single-chip three-phase bridge inverter IC with 6 IGBTs in the circuit. Especially, it is very suitable for controlling the speed of three-phase DC brushless motors, converting AC200~230V power supply applications. Figure 1 shows the internal block diagram.
Function
*Integrated charge pump circuit
*Integrated freewheeling diode
*Integrated PWM circuit
*Integrated FG circuit
*Integrated over current protection circuit
*Integrated rotation direction monitoring circuit
Features
* Speed control for three-phase brushless DC motors with external microprocessor.
*Lower arm circuit can work at 20KHZ chopping frequency PWM.