Patent · US Expired

Electronically commutated DC motor

US6456024B1 · kind B1 · utility

28Cited by

7References

19Claims

0Family size

Assignee

Papst Motoren GmbH & Co KG · DE

Inventors

Fritz Schmider · Hornberg, DE
Stefan Lukenich · Singen, DE

Key dates

Filing date	Nov 27, 2000
Grant date	Sep 24, 2002
Priority date	—
Expiry date	Nov 27, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH02P6/22
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electronically commutated direct-current motor has a permanent-magnet rotor (19), a stator (2) that has at least one drive winding (25), and an H-bridge circuit (52) in which two bridge elements are configured as transistors (54, 56) and the other two bridge elements as resistors (58, 60), the drive winding (25) being arranged on the diagonal of said H-bridge circuit (52); and it has a commutation circuit for alternate activation and deactivation of the two transistors (54, 56) of the H-bridge circuit (52). The motor operates quietly and with unusual reliability, and is well adapted for driving a fan.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.