Electrolux Home Products, Inc.

Techtronic Cordless Gp

Dongyu Wang

Jonathan R Feldkamp

William E Colber, Jr

James C Ferrell

Gianluca Venturini

Dayu Feng

A power tool may have features for varying height or speed. The power tool may include a base chassis, one or more wheels mounted to the base chassis, and a handle frame attached to the base chassis. A slider assembly or support rail may further be included with the power tool to, for instance, aid in varying speed or height.

Power tool having a variable height or speed

A power supply includes a filter that attenuates a noise component being transmitted toward a source that supplies an AC current. The filter lacks a capacitor establishing a conductive path for conducting a high-frequency alternating signal, a leakage current, or both to a ground electrode. A rectifier is included, and is disposed electrically between the filter and a load that is to be energized by operation of the power supply. The rectifier converts AC into a rectified signal. The power supply also includes a grounding capacitor that establishes a capacitive, conductive path between an output of the rectifier and a ground electrode that is to be electrically connected to ground. The grounding capacitor is electrically separated from the filter by the rectifier, and extends electrically between the ground electrode and at least one of: a positive DC bus conductor from the rectifier, and a DC bus return to the rectifier.

Electric heating appliance with AC-line filter with low leakage current

Growing community of inventors

Hendersonville, TN, United States of America

Dongyu Wang