Defibrillator charging current regulator
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United States of America Patent
Stats
-
Nov 11, 1980
Grant Date -
N/A
app pub date -
Jan 5, 1978
filing date -
Jan 5, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The capacitor of a defibrillator is charged to a high D.C. voltage from a low voltage D.C. source of small capacity by an inverter, a transformer, and a rectifier coupled in sequence. The turns ratio of the transformer is changed as the voltage across the capacitor reaches predetermined levels and the current in the primary of the transformer is regulated by comparing the voltage drop across a small resistor with the voltage of the source.
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