disclosed is an apparatus for generating and controlling a desired substrate potential level or a semiconductor chip. A pulse source, such as an oscillator, provides a pulse train which, in combination with a control signal from the substrate voltage detector, selectively discharges a capacitor in a voltage level converter for obtaining a desired level of substrate potential. A feedback path through the substrate regulates the conductivity of a reference transistor in the substrate voltage detector providing the required control signal.

Classifications

7 codes

IPC · International Patent Classification

Section G — Physics

G05F3/20

Section H — Electricity

H03L1/00
H03K17/14
H03K3/011

USPC · US Patent Classification

307/304357/41331/57

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