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 JP1136576ApriorityCriticalpatent/JPS5295019A/en
Publication of JPS5295019ApublicationCriticalpatent/JPS5295019A/en
PURPOSE: To improve load compensation characteristic of DC motor field control system by detecting motor field current and providing positive feedback circuit in field control phase shifter.
COPYRIGHT: (C)1977,JPO&Japio
JP1136576A1976-02-061976-02-06Controller for dc motor
PendingJPS5295019A
(en)