Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
INVERTER DEVICE, COMPRESSOR DRIVE DEVICE, AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2018/055671
Kind Code:
A1
Abstract:
An inverter device (100) is characterized by being provided with: an inverter main circuit (3); a direct current detection circuit (5) that detects a direct current flowing in a direct current bus bar; and an inverter control unit (7) that outputs a pulse width modulation drive signal for controlling a plurality of semiconductor switching elements on the basis of the direct current detected by the direct current detection circuit (5). The inverter device is also characterized in that, when an operation frequency for operating the pulse width modulation drive signal is represented by Ts, an operation time of the pulse width modulation drive signal is represented by Tx, and a control carrier period of the pulse width modulation drive signal is represented by Tc, the inverter control unit (7) sets, as Tc, a value satisfying formula of Tx<(Ts-Tc/2).

Inventors:
KASHIMA, Mitsuo (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2016/077684
Publication Date:
March 29, 2018
Filing Date:
September 20, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02P27/08
Attorney, Agent or Firm:
TAKAMURA, Jun (Sakai International Patent Office, Toranomon Mitsui Building 8-1, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
Download PDF: