发明名称 |
Composite power amplifier |
摘要 |
A PAMELA-type of composite power amplifier is configured in such a way that a single power amplifier is operated at low output voltage amplitudes by prohibiting a pair of outphasing power amplifiers to produce any current. Preferably, at output voltage amplitudes above the maximum voltage of the single power amplifier is to be reached, the pair of outphasing power amplifiers is taken into operation providing currents phase shifted by substantially 180 degrees. When also the outphasing power amplifiers reach their maximum voltages, an outphasing operation is performed. |
申请公布号 |
SE0302586(D0) |
申请公布日期 |
2003.09.26 |
申请号 |
SE20030002586 |
申请日期 |
2003.09.26 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
MATS KLINGBERG;RICHARD HELLBERG |
分类号 |
H03F;H03F1/02;H03F3/24;H03F3/60;(IPC1-7):H03F/ |
主分类号 |
H03F |
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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