Control device and method for controlling an electronically commutated motor, and motor
US8659247B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2009 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jul 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/182
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control device for controlling an electronically commutated motor. The control device includes a control input for a rotor position signal and a control output for connection to field coils of the motor, and generates a load current for displacing a rotor of the motor depending on the rotor position signal outputting said load current via the control output. The control device includes at least one semiconductor switch for switching the load current depending on a semiconductor control signal, and includes at least one pulse generator which generates the load current in the form of a pulsed control signal for displacing the rotor. The control device also includes a delta sigma converter which is at least indirectly connected to the control input on the input side and which is designed to produce the semiconductor control signal in the form of a digital bit stream depending on the rotor position signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.