Invention Grant
- Patent Title: Electric working machine and method for smoothing AC power supplied thereto
-
Application No.: US15657484Application Date: 2017-07-24
-
Publication No.: US10658951B2Publication Date: 2020-05-19
- Inventor: Yuki Kawai , Itsuku Kato
- Applicant: MAKITA CORPORATION
- Applicant Address: JP Anjo-shi
- Assignee: MAKITA CORPORATION
- Current Assignee: MAKITA CORPORATION
- Current Assignee Address: JP Anjo-shi
- Agency: Oliff PLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@72abd3b5
- Main IPC: H02P1/02
- IPC: H02P1/02 ; H02P29/024 ; H02H9/00 ; H02P6/20 ; H02M1/36 ; H02M7/06 ; H03K5/1536 ; H03K17/567 ; H02M1/42

Abstract:
An electric working machine according to one aspect of the present disclosure comprises a motor, a rectifier circuit, a capacitor, a series switching element, a resistive element, a drive circuit, a peak voltage value acquirer, and a controller. The capacitor smooths power rectified by the rectifier circuit. The series switching element is coupled in series with the capacitor. The resistive element is coupled in parallel with the series switching element. The controller brings the series switching element into conduction in a case where AC power is inputted to the rectifier circuit and where a specified conducting condition based on a peak voltage value acquired by the peak voltage value acquirer is satisfied.
Public/Granted literature
- US20180034388A1 ELECTRIC WORKING MACHINE AND METHOD FOR SMOOTHING AC POWER SUPPLIED THERETO Public/Granted day:2018-02-01
Information query