Title:
REVOLUTION SPEED MEASUREMENT/REVOLUTION SPEED CONTROL OF A SINGLE-PHASE ASYNCHRONOUS MOTOR AND UNIVERSAL MOTOR
Document Type and Number:
WIPO Patent Application WO2004031778
Kind Code:
A3
Abstract:
The invention relates to a device or a method that can be carried out with said device for measuring and regulating the revolution speed of motors, more particularly universal motors. The induced voltage (Urw) of a motor winding is measured proportionally to the revolution speed. After undergoing signal processing, said signal is used as feedback for controlling the revolution speed. The signal controls a control element (triac or thyristor) and the control element controls phasewise the voltage of a main winding or armature winding and possibly an auxiliary winding of a motor and, hence, the revolution speed of a motor.
Inventors:
TKADLEC STANISLAV (DE)
Application Number:
PCT/DE2003/003243
Publication Date:
July 08, 2004
Filing Date:
September 28, 2003
Export Citation:
Assignee:
TKADLEC STANISLAV (DE)
International Classes:
H02P25/04; (IPC1-7): H02P1/44; H02P5/418; H02P7/622; H02P7/638
Foreign References:
| EP0054446A1 | 1982-06-23 | |||
| US4196462A | 1980-04-01 | |||
| US4935678A | 1990-06-19 | |||
| DE4130532A1 | 1993-03-18 | |||
| US4481448A | 1984-11-06 |
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