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公开(公告)号:US20120034956A1
公开(公告)日:2012-02-09
申请号:US12852536
申请日:2010-08-09
申请人: Duane A. Green , Weiwei Shu , David Sawatzky
发明人: Duane A. Green , Weiwei Shu , David Sawatzky
CPC分类号: H03F3/245 , H03F1/0261 , H03F1/0277 , H03F3/189 , H03F3/195 , H03F3/211 , H03F3/72 , H03F2200/18 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/555 , H03G1/0017 , H03G1/0088
摘要: A system and method for biasing a power amplifier includes a power amplifier having a driver stage and an output stage, the driver stage having a plurality of driver devices, a bias current source configured to deliver a bias current to each of the plurality of driver devices, and a current directing element configured to receive the bias current and selectively bias each of the plurality of driver devices based on a reference voltage and a system voltage.
摘要翻译: 用于偏置功率放大器的系统和方法包括具有驱动级和输出级的功率放大器,所述驱动级具有多个驱动器器件,偏置电流源被配置为将偏置电流传送到所述多个驱动器器件 以及电流引导元件,其被配置为接收偏置电流并且基于参考电压和系统电压选择性地偏置所述多个驱动器器件中的每一个。
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公开(公告)号:US08688061B2
公开(公告)日:2014-04-01
申请号:US12852536
申请日:2010-08-09
申请人: Duane A. Green , Weiwei Shu , David Sawatzky
发明人: Duane A. Green , Weiwei Shu , David Sawatzky
CPC分类号: H03F3/245 , H03F1/0261 , H03F1/0277 , H03F3/189 , H03F3/195 , H03F3/211 , H03F3/72 , H03F2200/18 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/555 , H03G1/0017 , H03G1/0088
摘要: A system and method for biasing a power amplifier includes a power amplifier having a driver stage and an output stage, the driver stage having a plurality of driver devices, a bias current source configured to deliver a bias current to each of the plurality of driver devices, and a current directing element configured to receive the bias current and selectively bias each of the plurality of driver devices based on a reference voltage and a system voltage.
摘要翻译: 用于偏置功率放大器的系统和方法包括具有驱动级和输出级的功率放大器,所述驱动级具有多个驱动器器件,偏置电流源被配置为将偏置电流传送到所述多个驱动器器件 以及电流引导元件,其被配置为接收偏置电流并且基于参考电压和系统电压选择性地偏置所述多个驱动器器件中的每一个。
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公开(公告)号:US20130029620A1
公开(公告)日:2013-01-31
申请号:US13559275
申请日:2012-07-26
申请人: Hui Liu , Duane A. Green , David Anthony Sawatzky
发明人: Hui Liu , Duane A. Green , David Anthony Sawatzky
CPC分类号: G05F1/46 , H03F1/0216 , H03F1/0227 , H03F1/30 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/108 , H03F2200/111 , H03F2200/387 , H03F2200/429 , H03F2200/447 , H03F2203/7209 , H03F2203/7236 , H03G3/3042 , H04B1/0458 , H04B1/0475
摘要: Aspects of the present disclosure relate to a current multiplier that can generate an output current with high linearity and/or high temperature compensation. Such current multipliers can be implemented by complementary metal oxide semiconductor (CMOS) circuit elements. In one embodiment, the current multiplier can include a current divider and a core current multiplier. The current divider can generate a divided current by dividing an input current by an adjustable division ratio. The division ratio can be adjusted, for example, based on a comparison of the input current with a reference current. The core current multiplier can generate the output current based on multiplying the divided current and a different current. According to certain embodiments, the output current can be maintained within a predetermined range as the input current to the current divider varies within a relatively wide range.
摘要翻译: 本公开的方面涉及可以产生具有高线性度和/或高温度补偿的输出电流的电流乘法器。 这种电流乘法器可以由互补金属氧化物半导体(CMOS)电路元件实现。 在一个实施例中,电流乘法器可以包括分流器和核心电流倍增器。 电流分压器可以通过将输入电流除以可调分频比来产生分压电流。 例如,可以基于输入电流与参考电流的比较来调整分频比。 核心电流乘数可以基于乘以分流电流和不同电流来产生输出电流。 根据某些实施例,当到分流器的输入电流在相对宽的范围内变化时,输出电流可以保持在预定范围内。
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公开(公告)号:US08626092B2
公开(公告)日:2014-01-07
申请号:US13559275
申请日:2012-07-26
申请人: Hui Liu , Duane A. Green , David Anthony Sawatzky
发明人: Hui Liu , Duane A. Green , David Anthony Sawatzky
CPC分类号: G05F1/46 , H03F1/0216 , H03F1/0227 , H03F1/30 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/108 , H03F2200/111 , H03F2200/387 , H03F2200/429 , H03F2200/447 , H03F2203/7209 , H03F2203/7236 , H03G3/3042 , H04B1/0458 , H04B1/0475
摘要: Aspects of the present disclosure relate to a current multiplier that can generate an output current with high linearity and/or high temperature compensation. Such current multipliers can be implemented by complementary metal oxide semiconductor (CMOS) circuit elements. In one embodiment, the current multiplier can include a current divider and a core current multiplier. The current divider can generate a divided current by dividing an input current by an adjustable division ratio. The division ratio can be adjusted, for example, based on a comparison of the input current with a reference current. The core current multiplier can generate the output current based on multiplying the divided current and a different current. According to certain embodiments, the output current can be maintained within a predetermined range as the input current to the current divider varies within a relatively wide range.
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