Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1986-08-12
1987-12-29
Beha, Jr., William H.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
323281, 323303, G05F 156, G05F 508
Patent
active
047163070
ABSTRACT:
A semiconductor device having a circuit for regulating the external power supply voltage applied to the chip. When numerous chips are used in an electronic circuit having an external power supply voltage, variations in the electrical characteristics, such as the total power supply current, of each chip, become a problem. According to the present invention, variations in the electrical characteristics can be reduced by compensating the chip-to-chip fluctuations of the conductance of transistors (FETs) contained in an inner circuit disposed on the chip. A dummy transistor having a relatively short channel length is employed as a circuit for detecting the electrical characteristics of the transistors formed on the chip. The voltage drop across the dummy transistor is employed as a representative signal since it is sensitive to variations in the characteristics of the FETs contained in the inner circuit. Regulation of the power supply voltage is performed by a regulating device, usually a transistor, connected in series between the external power supply and the inner circuit. The representative signal is amplified by a regulating signal generating circuit whose output voltage is applied to the regulating device, thereby controlling the conductance of the regulating device.
REFERENCES:
patent: 4205263 (1980-05-01), Kawagai et al.
patent: 4281261 (1981-07-01), Adam
patent: 4430582 (1984-02-01), Bose et al.
patent: 4477737 (1984-10-01), Ulmer et al.
patent: 4555642 (1985-11-01), Morales
patent: 4585955 (1986-04-01), Uchida
Chu, "On-Chip Constant-Current Compensator," IBM Tech. Discl. Bull., vol. 19, No. 2, pp. 500-501, Jul. 1976.
Beha Jr. William H.
Fujitsu Limited
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