Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1994-08-11
1996-09-10
Wysocki, Jonathan
Electricity: motive power systems
Induction motor systems
Primary circuit control
15319, 318809, H02P 500
Patent
active
055549179
ABSTRACT:
In an apparatus for regulating the power consumption of a vacuum cleaner, it is proposed to detect the pulsating alternating current present at the driving electric motor and delivered by a phase-angle circuit by means of a parallel voltage sensor, rectify it, smooth it, digitize it, and, on the basis of data stored in tabular form from a memory arranged in a microprocessor, convert it into a true effective value of the motor voltage; and subsequently to compare it with various associated respective manually defined power data and to activate the phase-angle circuit so that irrespective of fluctuations or different power system alternating voltages or frequencies, motor output is regulated to constant values corresponding to the manual setting.
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Kraft Manfred
Kurz Gerhard
Kurz Gerhard
Wysocki Jonathan
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