Black Decker Inc.

Joseph B Narbut

Shailesh P Waikar

Scott J Eshleman

Erik A Ekstrom

Daniel F Nace

Alexandros T Theos

Zachary S Olmsted

Ganapati K Pai

A power adaptor is provided including a housing receiving a first power cord couplable to a power source through a and a second power cord couplable to a load through a second axial end, a protective capacitor mounted on a circuit board within the housing, a first set of terminals mounted on a first side of the circuit board adjacent the protective capacitor and configured to electrically couple line and neutral wires of the first power cord to the protective capacitor, and a second set of terminals mounted on a second side of the circuit board adjacent the protective capacitor and configured to electrically couple line and neutral wires of the second power cord to the protective capacitor. The protective capacitor is configured to discharge when current draw by the load exceeds a current threshold.

Line conditioning accessory and protective circuit for power tool

A power tool has a housing, a motor disposed within the housing, a power supply circuit for providing power to the motor, a controller circuit for controlling the power provided to the motor, and an electric static discharge (ESD) protection circuit connected to the power supply circuit and the housing. The ESD protection circuit includes a first resistor connected to the power supply circuit and the housing. The first resistor may be a high impedance resistor. The ESD protection circuit may also have a first capacitor connected in parallel to the first resistor, a second resistor connected in series to the first resistor, and a second capacitor connected in series to the first capacitor and in parallel to the second resistor.

Electric static discharge protection for power tools

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Parkville, MD, United States of America

Joseph B Narbut