Level conversion of AC or DC voltage with noise rejection and lo

Details Level conversion of AC or DC voltage with noise rejection and lo Level conversion of AC or DC voltage with noise rejection and lo

1994-07-28

1996-02-13

Wong, Peter S.

Electricity: power supply or regulation systems

Input level responsive

323273, 323902, G05F 500

Patent

active

054914051

ABSTRACT:
An input voltage U.sub.IN to a voltage level converter 10 having a high input impedance charges a storage element which periodically discharges current to an LED 16 which periodically provides a light pulse for generating a level converted version of the input voltage U.sub.IN. A resistor R.sub.p 22 connected to the storage element allows the storage element to discharge noise voltage spikes in the input voltage U.sub.IN.

REFERENCES:
patent: 4394613 (1983-07-01), Cole
patent: 4962292 (1990-10-01), Aoki
patent: 5089948 (1992-02-01), Brown et al.
patent: 5124630 (1992-06-01), Tsutsumi

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