Power MOSFET with current-monitoring

Details Power MOSFET with current-monitoring Power MOSFET with current-monitoring

1987-11-10

1991-07-02

Larkins, William D.

357 75, H01L 2356

Patent

active

050293222

ABSTRACT:
A power MOSFET composed of a plurality of individual MOSFETs connected in parallel, wherein an additional sensing MOSFET monitors the current in the power MOSFET. The sensing MOSFET has a surface comparatively smaller than the power MOSFET and is connected in parallel with the power MOSFET with a resistor between the source of the power MOSFET and the source of the sensing MOSFET. The sensing MOSFET and resistor are integrated with an integrated circuit provided for the control of the power MOSFET.

REFERENCES:
Publication from Electronic Design entitled, "MOSFET Measures Current with No Loss" by Frank Goodenough; dated Feb. 20, 1986; pp. 59-60.

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