发明名称 |
Bias control circuit for power amplifier |
摘要 |
A bias control circuit for a power amplifier including an RF amplifier having a transistor for power amplification, comprises two components. A first component is a bias circuit having an active bias transistor operating in an active mode and connected to a predetermined Vref pin to provide the transistor for power amplification with a base current and a second component is a bias current control circuit having another active bias transistor connected to a predetermined Vcon pin and turned on or off depending on a high or a low mode of the Vcon pin to thereby control a base current and a quiescent current of the transistor for power amplification.
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申请公布号 |
US6744321(B2) |
申请公布日期 |
2004.06.01 |
申请号 |
US20030387062 |
申请日期 |
2003.03.11 |
申请人 |
INFORMATION AND COMMUNICATIONS UNIVERSITY EDUCATIONAL FOUNDATION |
发明人 |
NOH YOUN SUB;KIM JI HOON;PARK CHUL SOON;KIM JOON HYUNG |
分类号 |
H03F1/02;H03F1/30;H03F3/72;H03G3/00;(IPC1-7):H03F3/04 |
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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