AC bias for a magnetic amplifier
Compton, Bryan W.
Yarbrough, Raymond B.
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The use of an alternating bias for a center tap doublet circuit, as a typical representative of the doublet class of magnetic amplifiers, was investigated primarily to determine if a mower minimum output could be obtained than with a direct bias without appreciably changing the gain characteristic. An analytical solution to the problem indicated that a minimum output less than that obtainable with a DC bias alone could be obtained without a major change in the gain characteristic. Laboratory investigation revealed that a minimum output was obtainable that was significantly less than that obtainable by use of a DC bias alone by using an AC bias in conjunction with a DC bias. The writer wishes to express his appreciation to Mr. Raymond B. Yarbrough of the U.S. Naval Postgraduate School whose inspiration and assistance made this investigation possible.
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