Line deflection circuit
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United States of America Patent
Stats
-
May 7, 2002
Grant Date -
Aug 9, 2001
app pub date -
Jan 11, 2001
filing date -
Jan 12, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic circuit for switching an inductive load (10) by way of a bipolar transistor (1) whereby a switching signal is supplied to the base (5) of a switching transistor (1) via an LRC circuit (6, 7, 9). During switching off the LRC circuit (6, 7, 9) causes a peak voltage at the base (5) of the switching transistor (1). The value of the peak voltage is a maximum when the power dissipation of the switching transistor (1) is a minimum. A regulator circuit (12-17) regulates a current source (18) in a primary winding of a switched transformer (22) in such a way that the peak voltage (Vp) is maximized.
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