US 12,172,272 B2
Power tool control system
Yong Min Li, Dongguan (CN); Li Hua Xie, Dongguan (CN); Zhong Kang Fang, Dongguan (CN); and Ji Guang Sun, Dongguan (CN)
Assigned to Techtronic Cordless GP, Anderson, SC (US)
Appl. No. 18/035,465
Filed by TECHTRONIC CORDLESS GP, Anderson, SC (US)
PCT Filed Nov. 5, 2020, PCT No. PCT/CN2020/126727
§ 371(c)(1), (2) Date May 4, 2023,
PCT Pub. No. WO2022/094851, PCT Pub. Date May 12, 2022.
Prior Publication US 2023/0415315 A1, Dec. 28, 2023
Int. Cl. B25C 1/00 (2006.01); B25C 1/06 (2006.01)
CPC B25C 1/008 (2013.01) [B25C 1/06 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A control system for a power tool, comprising:
a sensing unit configured to sense an operating characteristic of the power tool;
a first control unit configured to determine whether the operating characteristic is within a safe operational range, and to output a first control signal at least partially based on the determination;
a second control unit configured to determine whether the operating characteristic is within a safe operational range independently of the first control unit, and to output a second control signal at least partially based on the determination; and
an output unit configured to receive the first and second control signals and to activate the power tool when the first and second control signals are received.