Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1983-03-29
1986-01-14
Miller, Stanley D.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307570, 307580, 250551, H03K 342, G02B 2700
Patent
active
045647704
ABSTRACT:
A solid state relay having a light-emitting diode, an array of series connected photodiodes, a field-effect-transistor (FET) and optically controlled switch for FET turn off is described.
The light-emitting diode is optically coupled to the array of photodiodes. Turn on of the transistor is determined entirely by the voltage developed by the array of photodiodes. Turn off of the transistor is determined by the state of the optically controlled switch.
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Letter from William Sheng to Mr. Jeff Sherman dated Feb. 9, 1983 "Power-saving SSRs Separate Switching and Control" by William W. Sheng, Electronic Design, May 27, 1982, pp. 163-169.
Courcy Stephen E.
Sherman Jeffrey D.
Miller Stanley D.
RCA Corporation
Roseen Richard
Smiley Raymond E.
Tripoli Joseph S.
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