NASA NTRS · 19740000112
Bio-isolated DC operational amplifier
Abstract
Possibility of shocks from leakage currents can be reduced by use of isolated preamplifiers. Amplifier consists of battery-powered operational amplifier coupled by means of light-emitting diodes to another amplifier which may be grounded and operated from ac power mains or separate battery supply.
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Lee, R. D.. 1974-08-01. Bio-isolated DC operational amplifier. https://ntrs.nasa.gov/citations/19740000112
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