发明名称 |
Amplifier and frequency converter |
摘要 |
An amplifier circuit amplifies a differential signal supplied by a pair of input terminals. A phase controller circuit is placed between the emitters of two bipolar transistors and the ground. A feedback circuit is placed across the input and the output of the amplifier circuit for feeding the output of the amplifier circuit back to the input thereof. A phase change amount in the amplifier circuit is determined by the values of two inductors, whereas a phase change amount in the feedback circuit is determined by the values of two resistances and capacitors. The values of these devices are selected so that a phase difference between an input signal and a feedback signal is approximately 180 degrees in a range from the frequency of a fundamental wave of the input signal to the frequency of a second harmonic thereof.
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申请公布号 |
US7123073(B2) |
申请公布日期 |
2006.10.17 |
申请号 |
US20040506078 |
申请日期 |
2004.08.31 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAKATANI TOSHIFUMI;ITOH JYUNJI;NAKANO HIDEO |
分类号 |
G06F7/44;H03D7/14;H03D7/18;H03F1/34;H03F3/45 |
主分类号 |
G06F7/44 |
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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