Control circuit and motor device
US9166444B2 · kind B2 · utility
1Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2011 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Jul 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit has an input terminal for receiving an input voltage, an energy accumulator for storing electric energy from the input terminal and supplying power to an electrical load, and an over-voltage protection unit for lowering the voltage at the input terminal when the voltage at an output terminal of the energy accumulator exceeds a predetermined threshold value. A motor device combines the control circuit with an electric motor as the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.