Programmable high-speed motor torque controller
US6960896B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2004 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Jun 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A programmable high-speed motor torque controller is provided. A current mode PWM controller widely used in the switching power supply is utilized to perform a real-time hardware control on the operating current of a motor. A microprocessor is used as an operating and controlling interface. By means of the output signal from the switching element of the current-limiting switching controller, the gate switch elements (MOSFET/IGBT) are further controlled so as to control the real operating current of the motor. Therefore, at a cost of approximately one tenth of the digital signal processor, the programmable high-speed motor torque controller can achieve the functions similar to the digital signal processor. Furthermore, a set of built-in power loop switch can be provided to interrupt the current loop of the motor upon reverse rotation without the requirement of power output, thereby largely reducing the drag force of motor upon reverse rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.