Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1990-12-13
1992-09-08
Sterrett, Jeffrey
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363 51, 361 42, 340650, 324509, G01R 3114
Patent
active
051463970
ABSTRACT:
A power supply device with a monitoring circuit for detecting an unbalance in a direct voltage transmitted between two line conductors and which is normally balanced with respect to ground potential. A voltage divider circuit is arranged between the two line conductors and consists of components which are identical in pairs. The center tap of the voltage divider is connected to ground potential and at further taps thereof in each case positive and negative part-voltages are produced. A first positive part voltage is compared with a second negative part voltage and a second positive part voltage is compared with a first negative part-voltage so that the balance of the direct voltage with respect to ground potential is simply and reliably monitored.
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patent: 4430683 (1984-02-01), Kawai et al.
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Franzblau Bernard
Sterrett Jeffrey
U. S. Philips Corporation
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