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Title:
CONTROLLER OF ONE-PISTON ROTARY COMPRESSOR
Document Type and Number:
Japanese Patent JP2008263693
Kind Code:
A
Abstract:

To provide an invertor controller preventing a component from being damaged due to a sudden change of DC voltage and achieving stable torque control in a brushless DC motor controller.

A DC voltage detecting means 11 detects a MAX value and a MIN value of DC voltage. A torque gain setting means 12 is provided to set a torque gain so that the detected value does not exceed a voltage calculated from the breakdown voltage of an electrolytic capacitor and so that it exceeds a voltage calculated from a low voltage protection level of power IC and fan motor drive IC.


Inventors:
SUZUKI YOHEI
FUKUI SEIJI
Application Number:
JP2007103640A
Publication Date:
October 30, 2008
Filing Date:
April 11, 2007
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F24F11/86; F24F11/02; F24F11/49; F24F11/64; H02P6/06; H02P6/08; F24F140/00
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano