Electrical transmission or interconnection systems – Miscellaneous systems – Rate of change responsive systems
Patent
1983-03-14
1984-05-15
Goldberg, E. A.
Electrical transmission or interconnection systems
Miscellaneous systems
Rate of change responsive systems
324 62, 361 86, G01R 1912, G01R 2702
Patent
active
044490585
ABSTRACT:
It has been determined that if the level of the current input to a feedback stabilized driver amplifier circuit is compared with the level of the current output by the amplifier portion of this circuit, the ratio of the two currents is indicative of the condition of a load connected to the circuit. If the load comprises one or more impedances all of the same value, the ratio obtained will determine not only whether or not the load is open or short circuited but how many of the standard value loads are connected in parallel.
REFERENCES:
patent: 3710234 (1973-01-01), Nakano
patent: 4109196 (1978-08-01), Carmody
patent: 4349777 (1982-09-01), Mitamura
Goldberg E. A.
Hamann H. Fredrick
Jennings Derek S.
Lutz Bruce C.
Mayes Robert C.
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