optoisolatorn.
/ˌɒptəʊˈʌɪsəleɪtə/, U.S. /ˌɑptoʊˈaɪsəˌleɪdər/ Electronics.
A device consisting essentially of a current-dependent light source and a photodetector, which receives incoming electrical signals and transmits them optically over a short distance and can be used to provide electrical isolation between two parts of a circuit.
ΚΠ
1970 WESCON Techn. Papers 14 Paper 15/1. 1/1 An interesting innovation is GaAs opto-isolators which are used to eliminate such problems as unwanted spikes, voltage transients and ground current often encountered in switching circuits.
1979 SLR Camera Feb. 75/2 The transistor is driven from an optoisolator—an extremely useful electronic component which keeps the camera trigger pulse separate from the 283's circuit.
1986 Short Wave Mag. Dec. 367/2 (advt.) Opto-isolators from the chip ensure that R.F. can't get in.
1992 RS Components: Electronic & Electr. Products July 600/3 An optoisolator consisting of a gallium arsenide infra-red emitting diode coupled to a symmetrical bilateral silicon photo detector.
This is a new entry (OED Third Edition, June 2004; most recently modified version published online March 2022).
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n.1970- stone-coral
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