MOTOR DRIVING APPARATUS AND HOME APPLIANCE COMPRISING SAME

Title:

MOTOR DRIVING APPARATUS AND HOME APPLIANCE COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2017/061817

Kind Code:

A1

Abstract:

The present invention relates to a motor driving apparatus and a home appliance comprising the same. The motor driving apparatus according to an embodiment of the present invention comprises: an inverter which converts a direct current power source of a DC stage capacitor to an alternating current power source and outputs the converted alternating power source to a motor by a switching operation; a DC stage resistance device arranged between the DC stage capacitor and the inverter; and a control unit which controls the inverter on the basis of phase current sampled by means of the DC stage resistance device, wherein the control unit controls the frequency of voltage applied to the motor or the rotation frequency of the motor to be synchronized with the sampling frequency of the phase current sampled via the DC stage resistance device. Accordingly, it is possible to accurately calculate the phase current flowing through the motor by means of the DC stage resistance device.

Inventors:

KIM JONGWON (KR)
LEE JUNGDAE (KR)
YOO MYUNGKEUN (KR)
AHN JUNHO (KR)
HA JUNGIK (KR)
JUNG SUNGHO (KR)
PARK JAEYONG (KR)

Application Number:

PCT/KR2016/011250

Publication Date:

April 13, 2017

Filing Date:

October 07, 2016

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)
UNIV SEOUL NAT R & DB FOUND (KR)

International Classes:

H02P21/14; A47L9/28; H02P27/06

Foreign References:

JP2000350490A	2000-12-15
KR20140090470A	2014-07-17
JP2010148301A	2010-07-01
US20150077025A1	2015-03-19
JP2015133911A	2015-07-23

Other References: