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公开(公告)号:USD644364S1
公开(公告)日:2011-08-30
申请号:US29382241
申请日:2010-12-30
申请人: Hyung Uk Chang , Ji Hoon Kim
设计人: Hyung Uk Chang , Ji Hoon Kim
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公开(公告)号:USD642308S1
公开(公告)日:2011-07-26
申请号:US29382239
申请日:2010-12-30
申请人: Hyung Uk Chang , Ji Hoon Kim
设计人: Hyung Uk Chang , Ji Hoon Kim
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公开(公告)号:USD577733S1
公开(公告)日:2008-09-30
申请号:US29267520
申请日:2006-10-17
申请人: Yi Sak Park , Ji Hoon Kim , Yeon Hee Hong
设计人: Yi Sak Park , Ji Hoon Kim , Yeon Hee Hong
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公开(公告)号:USD563966S1
公开(公告)日:2008-03-11
申请号:US29267503
申请日:2006-10-17
申请人: Yi Sak Park , Ji Hoon Kim , Jei Sung Park
设计人: Yi Sak Park , Ji Hoon Kim , Jei Sung Park
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公开(公告)号:USD560225S1
公开(公告)日:2008-01-22
申请号:US29267504
申请日:2006-10-17
申请人: Yi Sak Park , Ji Hoon Kim , Yeon Hee Hong
设计人: Yi Sak Park , Ji Hoon Kim , Yeon Hee Hong
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公开(公告)号:US06744321B2
公开(公告)日:2004-06-01
申请号:US10387062
申请日:2003-03-11
申请人: Youn Sub Noh , Ji Hoon Kim , Chul Soon Park , Joon Hyung Kim
发明人: Youn Sub Noh , Ji Hoon Kim , Chul Soon Park , Joon Hyung Kim
IPC分类号: H03F304
CPC分类号: H03F1/0261 , H03F1/302 , H03F3/72 , H03F2200/18
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.
摘要翻译: 一种用于功率放大器的偏置控制电路,包括具有用于功率放大的晶体管的RF放大器,包括两个部件。 第一分量是偏置电路,其具有以有源模式工作的有源偏置晶体管,并连接到预定的Vref引脚,以提供具有基极电流的功率放大的晶体管,而第二分量是具有另一有源偏置晶体管的偏置电流控制电路 连接到预定的Vcon引脚,并根据Vcon引脚的高或低模式导通或截止,从而控制用于功率放大的晶体管的基极电流和静态电流。
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