发明名称 |
System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers |
摘要 |
<p>A system and method for dynamic adjustment of drain or collector voltage of a power amplifier (PA), including a PA having a voltage input, a temperature sensor (616) measuring ambient temperature of the PA, and an adaptive PA control processor (608) that dynamically changes the input voltage based on the ambient temperature, achieving a desired peak power when the system is subjected to high temperatures. In a further embodiment, a power sensor (614) measures output power of the PA, and the control processor (608) dynamically changes the voltage based on output power when the system serves a large cell in a mobile communication infrastructure employing high power. In a further embodiment, a multistage PA and method include amplifier stages having drain or collector voltage inputs, wherein a voltage applied to the inputs are set so as to be proportional to the peak power requirements of each stage, enhancing overall efficiency.</p> |
申请公布号 |
EP1959564(A2) |
申请公布日期 |
2008.08.20 |
申请号 |
EP20080151486 |
申请日期 |
2008.02.15 |
申请人 |
TELASIC COMMUNICATIONS, INC. |
发明人 |
NGUYEN, DUNG C.;YOON, SOON K.;KHANIFAR, AHMAD;DEVENDORF, DON. C. |
分类号 |
H03F1/02;H03F1/07;H03F1/30;H03F1/32;H03F3/24 |
主分类号 |
H03F1/02 |
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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