Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1988-06-20
1990-01-09
James, Andrew J.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
357 41, 357 35, 357 234, 357 51, 361 91, H01L 2978
Patent
active
048931586
ABSTRACT:
A power MOSFET is provided with a protective circuit including a monitor MOSFET whose drain is connected with the drain of the power MOSFET, a monitor resistor connected betwen the sources of the power and monitor MOSFETs, and a monitor transistor for decreasing a gate voltage of the power MOSFET when a voltage across the monitor resistor exceeds a predetermined level representing a dangerous condition of the device.
REFERENCES:
patent: 4686551 (1987-08-01), Mihara
Wrathall, "The Design of a High Power Solid State Automotive Switch in CMOS-VDMOS Technology", IEEE, Power Electronic Specialists Conference Record, 1985, pp. 229-233.
S. Reich, "Vorspannungserzeugung bei MOS-Feldeffekttransistoren", Funk-Technik, (1971), pp. 201-204.
Hiramoto Yukio
Hirota Yukitsugu
Matsushita Tsutomu
Mihara Teruyoshi
James Andrew J.
Nissan Motor Co,. Ltd.
Prenty Mark
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