| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter system for an on-vehicle air conditioner, which can prevent intrusion of noises into a control circuit and can realize high speed communication. <P>SOLUTION: The inverter system is configured to communicate between a motor control microcomputer 24 and a gate circuit 22 through a photo-coupler 80, by insulating the microcomputer and the gate circuit. Thereby, the inverter system is less liable to the influence of noises caused by the fluctuation associated with voltage and current fluctuations which occur in a high-voltage system for driving a motor 30. Furthermore, the motor control microcomputer 24 and a communication driver 27 can be directly connected by bus without using the photo-coupler, enabling high speed communication between the microcomputer and the communication driver. <P>COPYRIGHT: (C)2009,JPO&INPIT |
