Here, SG3524 is only used as a pulse width modulator. The error amplifier
is connected in the form of a follower. As shown in Figure 10-7. The ACR output is connected to pin 2 as the PWM input
control signal. V. Connect in parallel with VB to obtain single-ended output mode. When S, is closed, the output PWM pulse is turned off
to stop the motor.
Obviously, this application method is also suitable for the control of DC motors and brushless current motors
. Since the switched reluctance motor winding current is only in one direction, it
is more suitable and simpler to use a switching power supply PWM control integrated circuit.
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