Integrated circuit speed controller

Details Integrated circuit speed controller Integrated circuit speed controller

1986-05-27

1987-05-19

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307303, 307304, 307310, H03K 17687, H03K 1714

Patent

active

046671218

ABSTRACT:
A speed control circuit made by using CMOS processes is capable of handling high voltage and high current loads. The output of the speed control circuit is provided by a power field effect transistor. Current sensing means are provided to generate a fault signal in case an over current condition occurs. The junction temperature of the power field effect transistor is also monitored to provide an over temperature condition if the temperature of the junction of the power field effect transistor exceeds a predetermined value. A ramping generator is used to set a latch which controls the operation of the power field effect transistor. A speed control signal is compared against the ramping signal provided by the ramp generator and resets the latch in order to provide speed control.

REFERENCES:
patent: 4283638 (1981-08-01), Kompelien
patent: 4360783 (1982-11-01), Nagasawa et al.
patent: 4449067 (1984-05-01), Nishikawa

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