Elektrowerkzeug und Verfahren zum Betrieb davon

Details

Veröffentlichungs-Nr.

EP4804395

Anmeldetag

7. März 2025

Veröffentlichung

9. September 2026

Rechtsraum

EP

IPC

H02M1/42, H02M7/06, H02P6/10

Abstract

A power tool (100) and a method (300) for operating the same are provided. The power tool (100) includes an electric motor (112), an AC power supply (102) to provide an AC input voltage, and a rectifier (104) to convert the AC input voltage to a rectified DC voltage. The power tool (100) includes an inductor-capacitor (LC) circuit (106) to convert the rectified DC voltage to an output DC voltage, a pulse width modulated (PWM) switch (108) to control the output DC voltage, and a controller (110) to control the PWM switch (108). An internal inductor (118) of the electric motor (112) extends the LC circuit (106) to an inductor-capacitor-inductor (LCL) circuit (122). The controller (110) is configured to control a duty cycle of the PWM switch (108) such that an input current from the AC power supply (102) is sinusoidal and in-phase with the AC input voltage.

Anmelder

Firma

Husqvarna AB

Land

🇸🇪 Schweden

Fachgebiete