One-Chip Microcomputer-Based Controller for the McMurray Inverter

Control signals applied to a power converter can be obtained with the aid of microcomputer software. A reliable, low-cost, and small-sized gate circuit can be realized by using microcomputers. The generation of control signals required to control the McMurray inverter are attained by the one-chip microcomputer Intel 8748. The microcomputer generates not only the required firing pulses but monitors the commutating process of the inverter. Once the commutation failure has been detected, the gating sequence is changed to return the system to normal operation, thus realizing the commutation failure-free inverter control.