Elektrische Arbeitsmaschine und Verfahren zur Glättung der Wechselstromversorgung dafür

Details

Veröffentlichungs-Nr.

EP3276821

Aktenzeichen

EP17183563

Anmeldetag

27. Juli 2017

Veröffentlichung

3. März 2021

Erteilung

3. März 2021

Rechtsraum

EP

IPC

H02P29/024H02P6/20H02M1/14H02H9/00

Abstract

An electric working machine (1) according to one aspect of the present disclosure comprises a motor (15), a rectifier circuit (35), a capacitor (31), a series switching element (56), a resistive element (58), a drive circuit (50), a peak voltage value acquirer (42, 38), and a controller (38). 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.

Anmelder

Firma

Makita Corporation

Land

🇯🇵 Japan

Fachgebiete