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Stephen Courcy Phones & Addresses

  • Belmont, NH
  • Brookline, NH
  • 41 Lock St, Nashua, NH 03064 (603) 882-5883 (603) 882-8632
  • Gilford, NH
  • 41 Lock St, Nashua, NH 03064 (603) 882-5883

Work

Position: Protective Service Occupations

Publications

Us Patents

High Voltage Solid State Multiplexer

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US Patent:
45688346, Feb 4, 1986
Filed:
Sep 2, 1983
Appl. No.:
6/528837
Inventors:
Jeffrey D. Sherman - Billerica MA
Stephen E. Courcy - Westford MA
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
H03K 17693
H04J 302
US Classification:
250551
Abstract:
A high voltage multiplexer comprising as the switching elements for each nnel thereof a pair of series connected double diffused metal oxide semiconductor transistors connected source-to-source to obtain very high `off` resistance, with optical links comprising LEDs to switch the pairs of transistors `on` and `off`. A logic chip controls the switching of the transistors in accordance with externally applied signals. Circuitry is provided for rapidly discharging any voltage remaining on the gate-to-source capacity of the series-connected transistors upon the switching `off` of any channel.

Solid State Relay With Fast Turnoff

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US Patent:
45647704, Jan 14, 1986
Filed:
Mar 29, 1983
Appl. No.:
6/479988
Inventors:
Jeffrey D. Sherman - Billerica MA
Stephen E. Courcy - Westford MA
Assignee:
RCA Corporation - Princeton NJ
International Classification:
H03K 342
G02B 2700
US Classification:
307311
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.
Stephen M Courcy from Belmont, NH, age ~47 Get Report