H-bridge with sensing circuit
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United States of America Patent
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Mar 8, 2005
Grant Date -
May 8, 2003
app pub date -
Nov 5, 2001
filing date -
Nov 5, 2001
priority date (Note) -
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Abstract
In a cardioverter/defibrillator system, an electrical circuit includes an energy storage device, an output circuit for controlling delivery of pulse therapy from the energy storage device to a patient, and a sensing circuit coupled across the patient to sense the patient's heart signal. The output circuit may be in the form of an H-bridge switching circuit wherein a pair of switches of the output circuit is simultaneously turned on to discharge residual voltage across the patient that remains after delivery of pulse therapy. Thus, interference with sensing of the patient's heart signal is avoided.
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