Power voltage drop detecting circuit

Details Power voltage drop detecting circuit Power voltage drop detecting circuit

1986-04-25

1987-12-29

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307200B, 307603, 307605, 307362, 307304, 371 25, 371 66, 340663, H03K 17284, H03K 1722, H03K 1720, H03K 1730

Patent

active

047163232

ABSTRACT:
A power voltage drop detecting circuit includes VDD and ground terminals supplied with power voltage VD, a resistor connected at one end to the VDD terminal, a MOS transistor connected between the other end of the resistor and the ground terminal, and a CMOS inverter for producing an output signal according to a voltage at the junction between the resistor and the MOS transistor. The detecting circuit further includes a control pad connected to the control gate of the n-channel MOS transistor and supplied with control voltage VC at different levels in the test mode and detect modes, respectively.

REFERENCES:
patent: 3654496 (1972-04-01), Flad
patent: 3913006 (1975-10-01), Fillmore
patent: 3975649 (1976-08-01), Kawagoe et al.
patent: 4103187 (1978-07-01), Imamura
patent: 4140930 (1979-02-01), Tanaka
patent: 4293782 (1981-10-01), Tanaka et al.
patent: 4366560 (1982-12-01), McDermott et al.
patent: 4399372 (1983-08-01), Tanimoto et al.
patent: 4607178 (1986-08-01), Sugie et al.

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