发明名称 |
POWER AMPLIFICATION DEVICE |
摘要 |
a DC power source for outputting a drain voltage; a Doherty amplifier which has a carrier amplifier and a peak amplifier connected in parallel and amplifies an RF signal; a voltage control circuit which outputs a first instruction so as to output a low voltage when the output power is below a predetermined value and a second instruction so as to output a high voltage when the output power is above the predetermined value; and a voltage conversion circuit which converts the drain voltage to a lower voltage and applies it to drain terminals of a carrier amplifier and a peak amplifier according to the first instruction and applies the drain voltage directly to the drain terminals of the carrier amplifier and the peak amplifier according to the second instruction. ® KIPO & WIPO 2009
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申请公布号 |
KR20090086626(A) |
申请公布日期 |
2009.08.13 |
申请号 |
KR20097013879 |
申请日期 |
2007.12.05 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
YAMAUCHI KAZUHISA;SAKAI YUJI;FUJISAKI KOICHI;INOUE AKIRA |
分类号 |
H03F1/07;H03F3/24 |
主分类号 |
H03F1/07 |
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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