Second breakdown protection circuit for X-ray generator inverter

Details Second breakdown protection circuit for X-ray generator inverter Second breakdown protection circuit for X-ray generator inverter

1983-12-22

1986-05-13

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361100, 363 56, H02H 320

Patent

active

045890510

ABSTRACT:
In an X-ray generator operating with a pulse-width-modulated transistor inverter, circuitry is provided to sense the collector-emitter voltage of each of the transistors and to responsively turn off the transistor when that voltage level reaches a predetermined threshold level which is indicative of a problem. Provision is included to inhibit the operation of the protective circuit during the time period in which the transistor is turning on so as to thereby allow for higher voltages during that critical period.

REFERENCES:
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Walter Weigl, "A New High-Frequency Controlled X-Ray Generator System with Multi-Pulse Wave Shape", Jun. 1983, pp. 7-19 in The Journal for Radiological Engineering, vol. 1, No. 1, Jun. 1983.

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