Invention Grant
- Patent Title: Motor driving apparatus and home appliance including the same
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Application No.: US15205638Application Date: 2016-07-08
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Publication No.: US09954473B2Publication Date: 2018-04-24
- Inventor: Jungmoon Je , Hansu Jung , Chungill Lee , Jangmok Kim , Hyunkeun Ku , Hanbeom Yeom
- Applicant: LG ELECTRONICS INC. , Pusan National University Industry-University Cooperation Foundation
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Dentons US LLP
- Priority: KR10-2015-0098556 20150710
- Main IPC: H02P21/24
- IPC: H02P21/24 ; H02P27/08 ; H02P6/18

Abstract:
The present invention relates to a motor driving apparatus and a home appliance including the same. A motor driving apparatus according to an embodiment of the present invention includes an inverter for converting a DC voltage of a DC-link capacitor into an AC voltage according to a switching operation and outputting the converted AC voltage to a motor; a DC-link resistor disposed between the DC-link capacitor and the inverter; and a controller for controlling the inverter based on a phase current sampled through the DC-link resistor, wherein the controller estimates a phase current based on the phase current sampled through the DC link resistor, in an interval in which phase current detection is not possible. Thereby, the phase current flowing through the motor may be accurately calculated using the DC link resistor.
Public/Granted literature
- US20170070172A1 MOTOR DRIVING APPARATUS AND HOME APPLIANCE INCLUDING THE SAME Public/Granted day:2017-03-09
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