H - Electricity – 02 – P
Patent
H - Electricity
02
P
318/96
H02P 7/29 (2006.01)
Patent
CA 1109122
TITLE OF THE INVENTION: Speed Regulator ABSTRACT OF THE DISCLOSURE: An AC feedback circuit is interconnected through a choke coil between the input and output lines of a motor drive circuit so that the negative feedback may be effected at a low frequency close to the cutoff frequency of a control system but the positive feedback may be effected at a high frequency. The carrier signal or the high frequency signal for controlling the switching may be generated within the drive circuit. Thus a switching type speed regulator which is simple in construction yet has high efficiency may be provided. - 1 -
288530
Gowling Lafleur Henderson Llp
Matsushita Electric Industrial Co. Ltd.
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