Control and power module for brushless motor
US10848034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2017 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Aug 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10522
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic module is provided for a power tool having an electric motor. The electronic module includes a printed circuit board (PCB) being substantially disc-shaped; power switches mounted on the PCB forming an inverter bridge circuit for driving the electric motor; a controller mounted on the PCB and configured to control a switching operation of the power switches; positional sensors mounted on the PCB substantially equidistantly from a center of the PCB within the control portion and in communication with the controller to provide positional signals related to a rotational position of the electric motor to the controller; and a module housing arranged to receive the PCB therein. The module housing includes a planar portion in parallel to the PCB and openings disposed in the planar portion angularly around a center of the module housing to receive the positional sensors therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.