Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1989-12-07
1991-06-11
Beha, Jr., William H.
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
338 64, 323370, 378112, H02M 7155
Patent
active
050237691
ABSTRACT:
A power supply for an X-ray tube having a feedback loop for regulating the high-voltage output signal of the power supply and allowing operation from AC lines of different voltage characteristics. The single-phase components of the input AC line voltage pass through separate silicon controlled rectifiers before being applied to a step-up transformer. The high-voltage transformer output is monitored by a shielded resistor divider and processed to produce a low-voltage control signal for controlling the input rectifiers.
REFERENCES:
patent: 4034283 (1977-07-01), Pellegrino
patent: 4274003 (1981-06-01), Kuehnel et al.
patent: 4412183 (1983-10-01), Brodie
Beha Jr. William H.
Electromed International Ltd.
Oliverio M. Lawrence
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