Power tool and control method of the same
US11070164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2020 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Oct 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P7/29
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power tool has a functional component, a motor, a power supply module, a controller and a drive circuit including a first drive terminal and a second drive terminal respectively electrically connected to a first power terminal and a second power terminal of the power supply module, multiple high-side switches wherein high-side terminals of the high-side switches are respectively electrically connected to the first drive terminal, and multiple low-side switches wherein low-side terminals of the low-side switches are respectively electrically connected to the second drive terminal. The controller is configured to output a first control signal to one high-side switch to place it in an on or off state and output a second control signal to one low-side switch to place it in the other state. The low-side terminal of one high-side switch is connected to the high-side terminal of one low-side switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.