发明授权
US4032833A Chopper control device 失效
CHOPPER控制装置

Chopper control device
摘要:
In a chopper control device in which a magnetic phase shifter is used for providing chopper turn-on and turn-off signals, an external magnetic field is applied to the core of the magnetic phase shifter so as to carry out the notching control of a motor by regulating the residual phase angle of the output of the magnetic phase shifter.
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