Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Hitachi Ltd
Original Assignee
Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP7118476ApriorityCriticalpatent/JPS52154018A/en
Publication of JPS52154018ApublicationCriticalpatent/JPS52154018A/en
PURPOSE: To eliminate a unstability caused in the speed control circuit by a current on-off, by such that with AC input line voltage being in conduction to the convertor detected, its voltage be fed back likely to be overlapped on output signal of the current control circuit.
COPYRIGHT: (C)1977,JPO&Japio
JP7118476A1976-06-181976-06-18Controller for dc motor
PendingJPS52154018A
(en)