发明名称 |
System and method for employing variable magnetic flux bias in an amplifier |
摘要 |
A system and method for employing variable magnetic flux bias in an amplifier. The amplifier system comprises an output transformer and a magnetic sensor configured to sense a first magnetic flux of the output transformer. The magnetic sensor generates a flux signal responsive to the first magnetic flux. Control circuitry is configured to receive the flux signal and to generate a control signal responsive to the flux signal. A winding is configured to receive the control signal and to induce a second magnetic flux within the output transformer responsive to the control signal, the second magnetic flux having opposite polarity to the first magnetic flux. The second magnetic flux may maintain a non-zero quiescent magnetic bias level within the output transformer, or may substantially cancel or null the DC and low-frequency subsonic components of the first magnetic flux.
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申请公布号 |
US7348845(B2) |
申请公布日期 |
2008.03.25 |
申请号 |
US20060437316 |
申请日期 |
2006.05.18 |
申请人 |
GIOVANNOTTO ROBERTO MICHELE |
发明人 |
GIOVANNOTTO ROBERTO MICHELE |
分类号 |
H03F1/00 |
主分类号 |
H03F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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