Inverter system for vehicle-mounted air conditioner

Details Inverter system for vehicle-mounted air conditioner Inverter system for vehicle-mounted air conditioner

2011-08-23

2011-08-23

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S700000, C318S400010, C318S139000

Reexamination Certificate

active

08004221

ABSTRACT:
The present invention has an object to provide an inverter system for a vehicle-mounted air conditioner that prevents noise from entering a control circuit and allows high speed communication. A motor control microcomputer24is isolated from a gate circuit22, and communication therebetween is performed via a photocoupler80. This suppresses the influence of noise resulting from changes caused by changes in voltage and current that occur in a high voltage system for driving a motor30. Also, the motor control microcomputer24and a communication driver27can be directly bus-connected without a photocoupler, thereby allowing high speed communication therebetween.

REFERENCES:
patent: 4667480 (1987-05-01), Bessler
patent: 5577152 (1996-11-01), Chen
patent: 5595064 (1997-01-01), Ikeda et al.
patent: 5963442 (1999-10-01), Yoshida et al.
patent: 6646411 (2003-11-01), Hirono et al.
patent: 11-189032 (1999-07-01), None

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