Power tool with electric motor and auxiliary switch path

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10050572
APP PUB NO 20170288585A1
SERIAL NO

15623541

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A power tool is configured to receive power from a power supply. The power tool may include a rectifier that may output a rectified signal to a DC power bus. A switching arrangement may operate to deliver electric power from the DC power bus to an electric motor. A switch path may be electrically coupled in parallel with the rectifier on the DC power bus. The switch path includes an auxiliary capacitor in series with a switch and a state of the switch controls a discharging path for the auxiliary capacitor. A switch control circuit may be configured to detect voltage associated with at least one of the AC power supply or the DC power bus and to control state of the switch in accordance with magnitude of the detected voltage.

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Patent Owner(s)

  • STANLEY BLACK & DECKER, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cherry, Mark T White Marsh, US 9 32
Eshleman, Scott J Parkville, US 22 987
Forster, Michael K White Hall, US 74 1570
Pant, Pradeep M Cockeysville, US 12 270
Seeley, Timothy J Bel Air, US 9 76
Woods, Samuel G Bel Air, US 23 1133

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