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公开(公告)号：US20100194479A1
公开(公告)日：2010-08-05
申请号：US12759900
申请日：2010-04-14
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
CPC分类号： H02M3/07 , H03F1/025 , H03F3/185 , H03F3/187 , H03F3/68 , H03F2200/507 , H03F2200/511 , H03G1/0017 , H03G1/0029 , H03G1/0088 , H03G1/0094
摘要： A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
摘要翻译： 一种信号放大电路及相关的方法和装置，所述电路包括：从输入端延伸到输出端的信号路径;增益控制器，被配置为响应于控制信号控制沿着信号路径施加的增益; 用于产生输出信号的信号路径内的输出级，输出级具有基本上与其电源电压无关的增益;以及可变电压电源，包括用于提供正和负输出电压的电荷泵，所述电荷泵包括 可操作于多个不同状态的开关网络和用于以一系列状态操作开关的控制器，以便将跨越大致等于输入电压的电压产生正和负输出电压。
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公开(公告)号：US07622984B2
公开(公告)日：2009-11-24
申请号：US12000547
申请日：2007-12-13
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
CPC分类号： H02M3/07 , H02M2001/009 , H02M2003/071 , H02M2003/072
摘要： A charge pump circuit and associated method and apparatuses for providing a plurality of output voltages using a single flying capacitor. The circuit includes a network of switches that are operable in a number of different states and a controller for operating the switches in a sequence of states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage and centered on the voltage at the common terminal.
摘要翻译： 一种电荷泵电路及相关方法和装置，用于使用单个飞行电容器提供多个输出电压。 该电路包括可在多个不同状态下操作的开关网络和用于以一系列状态操作开关的控制器，以便将正和负输出电压一起跨越大约等于输入电压的电压并以 公共端的电压。
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公开(公告)号：US20090154733A1
公开(公告)日：2009-06-18
申请号：US12390235
申请日：2009-02-20
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
IPC分类号： H03F99/00
CPC分类号： H02M3/07 , H03F1/025 , H03F3/185 , H03F3/187 , H03F3/68 , H03F2200/507 , H03F2200/511 , H03G1/0017 , H03G1/0029 , H03G1/0088 , H03G1/0094
摘要： A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
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公开(公告)号：US08183931B2
公开(公告)日：2012-05-22
申请号：US12966228
申请日：2010-12-13
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
IPC分类号： H03F3/04
CPC分类号： H02M3/07 , H03F1/025 , H03F3/185 , H03F3/187 , H03F3/68 , H03F2200/507 , H03F2200/511 , H03G1/0017 , H03G1/0029 , H03G1/0088 , H03G1/0094
摘要： A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
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公开(公告)号：US20110235827A1
公开(公告)日：2011-09-29
申请号：US13152770
申请日：2011-06-03
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
CPC分类号： H02M3/07 , H03F1/025 , H03F3/185 , H03F3/187 , H03F3/68 , H03F2200/507 , H03F2200/511 , H03G1/0017 , H03G1/0029 , H03G1/0088 , H03G1/0094
摘要： A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
摘要翻译： 一种信号放大电路及相关的方法和装置，所述电路包括：从输入端延伸到输出端的信号路径;增益控制器，被配置为响应于控制信号控制沿着信号路径施加的增益; 用于产生输出信号的信号路径内的输出级，输出级具有基本上与其电源电压无关的增益;以及可变电压电源，包括用于提供正和负输出电压的电荷泵，所述电荷泵包括 可操作于多个不同状态的开关网络和用于以一系列状态操作开关的控制器，以便将跨越大致等于输入电压的电压产生正和负输出电压。
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公开(公告)号：US20110115563A1
公开(公告)日：2011-05-19
申请号：US12966248
申请日：2010-12-13
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
CPC分类号： H02M3/07 , H03F1/025 , H03F3/185 , H03F3/187 , H03F3/68 , H03F2200/507 , H03F2200/511 , H03G1/0017 , H03G1/0029 , H03G1/0088 , H03G1/0094
摘要： A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
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公开(公告)号：US07714660B2
公开(公告)日：2010-05-11
申请号：US12000549
申请日：2007-12-13
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
IPC分类号： H03F3/04
CPC分类号： H02M3/07 , H03F1/025 , H03F3/185 , H03F3/187 , H03F3/68 , H03F2200/507 , H03F2200/511 , H03G1/0017 , H03G1/0029 , H03G1/0088 , H03G1/0094
摘要： A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
摘要翻译： 一种信号放大电路及相关的方法和装置，所述电路包括：从输入端延伸到输出端的信号路径;增益控制器，被配置为响应于控制信号控制沿着信号路径施加的增益; 用于产生输出信号的信号路径内的输出级，输出级具有基本上与其电源电压无关的增益;以及可变电压电源，包括用于提供正和负输出电压的电荷泵，所述电荷泵包括 可操作于多个不同状态的开关网络和用于以一系列状态操作开关的控制器，以便将跨越大致等于输入电压的电压产生正和负输出电压。
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公开(公告)号：US20090212859A1
公开(公告)日：2009-08-27
申请号：US12434424
申请日：2009-05-01
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
IPC分类号： H03G3/20
CPC分类号： H02M3/07 , H03F1/025 , H03F3/185 , H03F3/187 , H03F3/68 , H03F2200/507 , H03F2200/511 , H03G1/0017 , H03G1/0029 , H03G1/0088 , H03G1/0094
摘要： A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
摘要翻译： 一种信号放大电路及相关的方法和装置，所述电路包括：从输入端延伸到输出端的信号路径;增益控制器，被配置为响应于控制信号控制沿信号路径施加的增益; 用于产生输出信号的信号路径内的输出级，输出级具有基本上与其电源电压无关的增益;以及可变电压电源，包括用于提供正和负输出电压的电荷泵，所述电荷泵包括 可操作于多个不同状态的开关网络和用于以一系列状态操作开关的控制器，以便将跨越大致等于输入电压的电压产生正和负输出电压。
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公开(公告)号：US20110103619A1
公开(公告)日：2011-05-05
申请号：US12966228
申请日：2010-12-13
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
CPC分类号： H02M3/07 , H03F1/025 , H03F3/185 , H03F3/187 , H03F3/68 , H03F2200/507 , H03F2200/511 , H03G1/0017 , H03G1/0029 , H03G1/0088 , H03G1/0094
摘要： A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
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公开(公告)号：US20080159567A1
公开(公告)日：2008-07-03
申请号：US12000548
申请日：2007-12-13
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
IPC分类号： H03F21/00
CPC分类号： H02M3/07 , H03F1/0211 , H03F1/56 , H03F3/187 , H03F2200/03 , H03F2200/507 , H03F2200/511
摘要： An electronic audio amplifier circuit, operable in two modes and a battery powered portable audio apparatus incorporating the circuit; and associated apparatuses and methods. When in the first mode the audio apparatus is designed for the direct driving of headphones or a speaker. When in the second mode the audio apparatus is designed to drive a line input of an external amplifying apparatus with a signal that having a higher voltage amplitude for a given signal content than when driving headphone or a speaker. The circuit has common output stage circuitry for use in both modes, and a dual mode power supply circuit, ideally a charge pump circuit, for supplying the output stage in the first mode with a lower supply voltage than in the second mode.
摘要翻译： 一种可在两种模式下工作的电子音频放大器电路和结合该电路的电池供电便携式音频装置; 以及相关的装置和方法。 当处于第一模式时，音频设备被设计用于直接驱动耳机或扬声器。 当处于第二模式时，音频设备被设计成以对于给定信号内容具有比对驱动耳机或扬声器驱动的电压幅度更高的信号来驱动外部放大装置的线路输入。 该电路具有用于两种模式的公共输出级电路和理想地为电荷泵电路的双模式电源电路，用于在第一模式中以比第二模式更低的电源电压提供输出级。
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