Method and apparatus for monitoring resistor temperature

Details Method and apparatus for monitoring resistor temperature Method and apparatus for monitoring resistor temperature

1989-11-13

1990-08-28

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Responsive to thermal conditions

318472, 388934, G05B 902, G05D 2300

Patent

active

049528564

ABSTRACT:
Method and apparatus for monitoring the temperature of a resistor in a resistive current controller. The heating and cooling rates for the resistor are determined and a predicted temperature of the resistor is automatically calculated at the beginning each time interval of consecutive time intervals by subtracting from the previous temperature prediction for the resistor the product of the cooling rate of the resistor and the time interval and adding the product of the heating rate of the resistor and the time interval. An actuating signal is produced when the predicted temperature of the resistor for a given time interval corresponds to a threshold temperature.

REFERENCES:
patent: 3808516 (1974-04-01), Hentschel
patent: 4434390 (1984-02-01), Elms
patent: 4573132 (1986-02-01), Boothman et al.
patent: 4743818 (1988-05-01), Quayle et al.

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