SWITCHING AMPLIFIER AND CONTROL METHOD THEREFOR

摘要

A fault-tolerant switching amplifier includes an inverter unit including N inverters, where N is a natural number, each of the N inverters including a plurality of switching elements and configured to perform switching ON or OFF of the switching elements based on a PWM signal inputted to the switching elements, thus switching an applied direct-current (DC) voltage, and to generate an output signal based on the switching and a switch unit including N switches respectively connected to output terminals of the N inverters, each of the N switches being configured to be short-circuited or open-circuited based on whether or not the corresponding one of the N inverters is in a normal operation condition. The output terminals of the N inverters are connected in series, such that output signals outputted from the inverters are combined to generate an amplified signal.

主权项

1. A fault-tolerant switching amplifier, comprising:
an inverter unit including N inverters, where N is a natural number, each of the N inverters including a plurality of switching elements and configured to perform switching ON or OFF of the switching elements based on a PWM signal inputted to the switching elements, thus switching an applied direct-current (DC) voltage, and to generate an output signal based on the switching; and a switch unit including N switches respectively connected to output terminals of the N inverters, each of the N switches being configured to be short-circuited or open-circuited based on whether or not the corresponding one of the N inverters is in a normal operation condition, wherein the output terminals of the N inverters are connected in series, such that output signals outputted from the inverters are combined to generate an amplified signal.