Voltage sensing circuit of differential input type

Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock


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307DIG3, 330253, 365208, H03K 520




A voltage sensing circuit of differential input type includes at least one differential amplifier circuit connected between two complementary data lines of a semiconductor memory. The differential amplifier circuit detects data in response to a minute potential difference between the data lines and amplifies the same by a substantial change in conductance g.sub.m of metal oxide semiconductor field effect transistors (MOSFET) used in the circuit. When data is read from a semiconductor memory onto the data lines, the differential amplifier sensing circuit detects the data quickly by detecting potential changes of the data lines.

patent: 3854101 (1974-12-01), Muramatsu
patent: 3967252 (1976-06-01), Donnelly
patent: 4003034 (1977-01-01), Au
patent: 4050030 (1977-09-01), Russell


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