Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1993-09-02
1995-05-30
Dougherty, Thomas M.
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363 17, 363132, H02M 744
Patent
active
054207819
ABSTRACT:
A system senses a voltage that exists across two nodes using first and second resistors connected in series between the two nodes. A differential amplifier acts as a detector and produces a first signal having a magnitude that corresponds to the voltage across the second resistor. A variable gain circuit changes the magnitude of the first signal by a gain factor to produce a second signal which indicates the voltage that exists across two nodes. A mechanism coupled to said variable gain circuit and adjusts the gain factor to compensate for changes in resistivity of said first and second resistors. The mechanism determines the resistor gain provided by the first and second resistors and uses the resistor gain to derive a new value for the gain factor.
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patent: 5272618 (1993-12-01), Blake
Berhane Adolf
Dougherty Thomas M.
General Electric Company
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