Power source voltage detector device incorporated in LSI circuit

Details Power source voltage detector device incorporated in LSI circuit Power source voltage detector device incorporated in LSI circuit

1987-03-31

1988-12-20

Salce, Patrick R.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323317, G05F 316

Patent

active

047927496

ABSTRACT:
A voltage regulator for an output voltage of a solar cell is formed together with an LSI circuit on a single chip. The voltage regulator includes a bias circuit as a CMOS current mirror circuit consituted by MOS transistors designed to operate in weak inversion regions, a constant current circuit constituted by a parasitic bipolar transistor, a voltage divider having a plurality of MOS transistors whose current paths are connected in series with each other, a comparator constituted by a CMOS differential amplifier, and a current path of a CMOS transistor, thereby assuring low current consumption, a highly stable regulated output, and a high packing density of the LSI circuit.

REFERENCES:
patent: 4260946 (1981-04-01), Wheatley, Jr.
patent: 4306183 (1981-12-01), Wright
patent: 4327321 (1982-04-01), Suzuki et al.
patent: 4366432 (1982-12-01), Noro
patent: 4423370 (1983-12-01), Wilhelm
patent: 4454467 (1984-06-01), Sakaguchi
patent: 4532467 (1985-07-01), Mensink et al.
patent: 4593208 (1986-06-01), Single
patent: 4638239 (1987-01-01), Hachinisri
Horowitz et al., The Art of Electronics, (Cambridge University Press, 1980), pp. 246, 420-421.
IC for Precision Reference Power Supply, Transistor Technology, Ferranti Semiconductors, p. 245, Jan. 1987.
C-MOS Voltage Detector and C-MOS Voltage Regulator, Transistor Technology, Seiko Denshi Kogyo Kabushiki Kaisha, p. 324 Jun. 1985.

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