Two terminal I.C. magnetic-field detector for use in a liquid level sensor and having an anti-slosh feature

摘要: A two-terminal integrated circuit magnetic-field detector, for use in detecting a low level of liquid vehicle, has Hall element, Schmitt type comparator, an anti-sloshing accumulator such as up-down counter, and latching driver all connected tandem. The is producing signal that the integral function time binary comparator output signal. During sloshing, when average near at which low-level warning desired, climbs vacillating manner. across two (I.C.) terminals latches on reaches predetermined value, dropping impedance I.C terminals. indicating lamp series with source DC voltage I.C. terminals, so position floating magnet approaches also turned cannot be off except by removing energizing voltage. may counter means preventing counting over-flow mode, under-flow namely downward below zero count.