发明名称 |
POWER AMPLIFYING CIRCUIT WITH SUPPLY ADJUST TO CONTROL ADJACENT AND ALTERNATE CHANNEL POWER. |
摘要 |
A power amplifying circuit with supply adjust for control of adjacent and alternate channel power. A power amplifier amplifies an input signal to produce an amplified signal. A peak-to-average detector detects peak levels of the amplified signal and an average level of the amplified signal and produces an indication of the peak levels and the average level. A controller adjusts a supply voltage to the power amplifier responsive to the indication to cause the supply voltage to lower as a difference between the peak levels and the average level increases above a predetermined level and to cause the supply voltage to elevate as the difference decreases below the predetermined level.
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申请公布号 |
MXPA00007090(A) |
申请公布日期 |
2004.11.10 |
申请号 |
MX2000PA07090 |
申请日期 |
2000.07.19 |
申请人 |
MOTOROLA INC. |
发明人 |
DAVID SCHLUETER. |
分类号 |
H03F3/24;H01Q11/12;H03F1/02;H03F3/20;H03G3/00;H03G3/20;H03G3/30;H04B1/04;H04B7/005;H04L27/36;H04W52/22;H04W52/52;H04W84/04;H04W88/02;(IPC1-7):H01Q11/12;H04K1/02;H04L25/03 |
主分类号 |
H03F3/24 |
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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