Power tool having stamped brake resistor
US12328087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2024 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Feb 12, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P3/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for braking a power tool using a stamped brake resistor. The power tool includes a motor, a trigger configured to be actuated, and a brake switch coupled to the motor. A brake resistor assembly is selectively coupled to the motor via the brake switch and includes a stamped brake resistor. The stamped brake resistor includes a terminal portion and a resistive portion. The resistive portion includes a planar serpentine path. A controller including an electronic processor and a memory is coupled to the trigger, the motor, and the brake switch, and is configured to control power delivered to the motor based on a position of the trigger, determine to brake the motor during operation of the motor, and activate, in response to determining to brake the motor, the brake switch to connect the stamped brake resistor to the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.