Pulse width modulation controller
US9124092B2 · kind B2 · utility
1Cited by
14References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | May 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a Pulse Width Modulation (PWM) controller. The PWM controller includes a plurality of Field Effect Transistors (FETs) and an FET driver. A comparator compares a current flowing through the FETs with an overcurrent reference value, and microcomputer controls a motor and a circuit protection function, and turns off the FET driver when the current flowing through the FETs is greater than the overcurrent reference value as a result of comparison by the comparator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.