06236177 is referenced by 81 patents and cites 30 patents.

A power tool including a braking and control circuit. The braking and control circuit includes a microcontroller-based control means circuit. The microcontroller assures control of switch means, such as triacs, switches and relays, and ensures that braking is effectuated regardless of the phase in the power cycle of the alternating current. Also, the microcontroller is programmable so that the braking and control circuit accommodates different braking conditions for different power tools and accommodates combinations of braking conditions for the same power tool. Further, the microcontroller is programmable to configure the braking and control circuit so that the braking force applied to the motor and the stopping time of the motor are regulated and adjustable. This may be accomplished by outputting a control signal so that the switch means skips cycles in the alternating current or by otherwise adjusting the operation of the switch means.

Title
Braking and control circuit for electric power tools
Application Number
9/326028
Publication Number
6236177 (B1)
Application Date
June 4, 1999
Publication Date
May 22, 2001
Inventor
Joseph W Willhide
Brookfield
WI, US
Jonathan A Zick
Waukesha
WI, US
Agent
Michael Best & Friedrich
US
Assignee
Milwaukee Electric Tool Corporation
WI, US
IPC
H02P 3/00
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