Motor control apparatus

Details Motor control apparatus Motor control apparatus

1997-08-25

1999-06-08

Ip, Paul

Electricity: motive power systems

Automatic and/or with time-delay means

Nonresponsive or less responsive for limited periods

318266, 318452, H02K 1734, B60K 2000

Patent

active

059107189

ABSTRACT:
A control circuit outputs a first signal at a predetermined period in the case of being in a normal state and in the case of not being in a normal state, stops the output of the first signal at the predetermined period and outputs a third signal for controlling a motor on the basis of a second signal at a time when a switch SW is operated. In the case that the control circuit is not in a normal state, the first signal is not output at the predetermined period, a fifth signal is output from an output circuit and the second signal passes through a second gate circuit. Then, a drive circuit drives the motor by the second signal passing through the second gate circuit.

REFERENCES:
patent: 4611154 (1986-09-01), Lambropoulos et al.
patent: 5689160 (1997-11-01), Shigematsu et al.
patent: 5723959 (1998-03-01), Iwata et al.
patent: 5754017 (1998-05-01), Tsuge et al.
patent: 5773942 (1998-06-01), Takahara et al.
patent: 5774046 (1998-06-01), Ishihara et al.

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