INVERTER DRIVE CIRCUIT

摘要

An inverter drive circuit is equipped with a switching element for each of the upper and lower arms connected in series between the positive electrode and the negative electrode of a DC power source, and a driver circuit for controlling the switching on and off of the switching elements, according to a control signal imparted to each of the switching elements, has a load connected to the connection point between the switching elements of the upper and lower arms, converts the DC-power-source power into AC through the switching on and off, and supplies said power to the load. Therein, the driver circuit compares the voltage of each terminal at both ends of the switching elements, and controls on the basis of the comparison result and the control signal.

主权项

1. An inverter drive circuit comprising:
respective switching elements of upper and lower arms connected in series between a positive electrode and a negative electrode of a DC power source, a driver circuit that performs on/off switching control of the switching elements in accordance with a control signal given for each of the switching elements, wherein a load is connected to a connection point between the switching elements of the upper and lower arms, power from the DC power source is converted into an AC by the on/off switching and the AC is supplied to the load, and the driver circuit compares voltages of respective terminals at both ends of the switching element and performs the control based on a result of the comparison and the control signal.