公开(公告)号：US20160056777A1

公开(公告)日：2016-02-25

申请号：US14929974

申请日：2015-11-02

申请人： Cirrus Logic, Inc.

发明人： Bharath Kumar Thandri ,  John L. Melanson

IPC分类号： H03F3/183 ,  H03F3/217 ,  H02M3/07 ,  H03F1/02

CPC分类号： H03F3/183 ,  H02M3/07 ,  H02M2003/071 ,  H02M2003/072 ,  H03F1/0211 ,  H03F1/0227 ,  H03F3/185 ,  H03F3/217 ,  H03F2200/03 ,  H03F2200/102

摘要： A charge pump power supply may comprise a plurality of capacitors and a switching circuit for switching the capacitors to provide a first voltage or a second voltage in accordance with the select input. The charge pump power supply may have a signal polarity input for indicating a polarity of an output audio signal. Switches for switching one or more capacitors providing a first polarity voltage in a then-current operating mode may be configured to switch at a greater frequency than switches for switching one or more capacitors providing a second polarity voltage responsive to the signal polarity input indicating a positive polarity of the output audio signal. Switches for switching one or more capacitors providing the first polarity voltage in a then-current operating mode are configured to switch at a lesser frequency than switches for switching one or more capacitors providing the second polarity voltage responsive to the signal polarity input indicating a negative polarity of the output audio signal.

摘要翻译： 电荷泵电源可以包括多个电容器和用于切换电容器以根据选择输入提供第一电压或第二电压的开关电路。 电荷泵电源可以具有用于指示输出音频信号的极性的信号极性输入。 用于切换在当前操作模式中提供第一极性电压的一个或多个电容器的开关可以被配置为以比用于切换提供第二极性电压的一个或多个电容器的开关更大的频率切换，所述电容器响应于指示正的 输出音频信号的极性。 用于切换在当前操作模式中提供第一极性电压的一个或多个电容器的开关被配置为响应于指示负极性的信号极性输入而以比用于切换提供第二极性电压的一个或多个电容器的开关更小的频率 的输出音频信号。

公开(公告)号：US20160033988A1

公开(公告)日：2016-02-04

申请号：US14448388

申请日：2014-07-31

申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

发明人： Cornelis VOORWINDEN

IPC分类号： G05F5/00

CPC分类号： G05F5/00 ,  H02M1/44 ,  H02M3/07 ,  H02M2001/0006 ,  H02M2003/072

摘要： A power converter uses a charge pump divider that includes a capacitive divider core and a phase clock generator. The capacitive divider core has an input for receiving an input voltage and an output for providing an output voltage. In a first phase the capacitive divider core is adapted to couple a flying capacitor in series with an output capacitor. In a second phase the capacitive divider core is adapted to couple the flying capacitor in parallel with the output capacitor. The phase clock generator activates a first phase clock indicating the first phase when a flying voltage across the flying capacitor is less than a predetermined portion of the input voltage minus a peak voltage, and subsequently activates a second phase clock indicating the second phase when the flying voltage exceeds the predetermined portion of the input voltage plus the peak voltage.

摘要翻译： 电源转换器使用包括电容分压器内核和相位时钟发生器的电荷泵分压器。 电容分压器芯具有用于接收输入电压的输入和用于提供输出电压的输出。 在第一阶段中，电容分压器芯适于将与输出电容器串联的飞跨电容器耦合。 在第二阶段中，电容分压器芯适于将飞跨电容器与输出电容器并联耦合。 当跨越飞行电容器的飞跨电压小于输入电压的预定部分减去峰值电压时，相位时钟发生器激活指示第一相位的第一相位时钟，并且随后当飞行时产生指示第二相位的第二相位时钟 电压超过输入电压的预定部分加上峰值电压。

公开(公告)号：US09236794B2

公开(公告)日：2016-01-12

申请号：US13854707

申请日：2013-04-01

申请人： Wolfson Microelectronics plc

发明人： John P. Lesso

IPC分类号： H02M3/07

CPC分类号： H02M3/07 ,  H02M2003/072

摘要： A charge pump circuit, and associated method and apparatuses, for providing a split-rail voltage supply, the circuit having a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of said 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的方法和装置，用于提供分路电压电源，所述电路具有可在多个不同状态下操作的开关网络和用于以所述状态的顺序操作所述开关的控制器 以将正和负输出电压一起产生，跨越大约等于输入电压的电压并以公共端的电压为中心。

公开(公告)号：US20140285171A1

公开(公告)日：2014-09-25

申请号：US13973815

申请日：2013-08-22

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Maomi KATSUMATA

IPC分类号： H02M3/156

CPC分类号： H02M3/07 ,  H02M2003/072 ,  H02M2003/075

摘要： In an embodiment, a voltage conversion circuit includes a first voltage conversion unit stepping up or stepping down an input DC voltage and a second voltage conversion unit stepping up or stepping down an input DC voltage. A switcher is configured to switch between using both the first and second conversion units or just one of the first and second conversion units. The switcher can optionally be controlled according to an input voltage level such that both the first and second voltage conversion units can be used for a voltage step-up or voltage step-down operation or just one of the first and second voltage conversion units can be used.

摘要翻译： 在一个实施例中，电压转换电路包括第一电压转换单元，用于升压或降低输入直流电压，第二电压转换单元升压或降低输入直流电压。 切换器被配置为在使用第一和第二转换单元之间或仅使用第一和第二转换单元之一进行切换。 切换器可以根据输入电压电平进行控制，使得第一和第二电压转换单元都可以用于升压或降压运行，或者只有第一和第二电压转换单元中的一个可以是 用过的。

公开(公告)号：US20130314151A1

公开(公告)日：2013-11-28

申请号：US13854707

申请日：2013-04-01

申请人： Wolfson Microelectronics Plc

发明人： John P. Lesso

IPC分类号： H02M3/07

CPC分类号： H02M3/07 ,  H02M2003/072

摘要： A charge pump circuit, and associated method and apparatuses, for providing a split-rail voltage supply, the circuit having a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of said 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的方法和装置，用于提供分路电压电源，所述电路具有可在多个不同状态下操作的开关网络和用于以所述状态的顺序操作所述开关的控制器 以将正和负输出电压一起产生，跨越大约等于输入电压的电压并以公共端的电压为中心。

公开(公告)号：US20110298440A1

公开(公告)日：2011-12-08

申请号：US12794995

申请日：2010-06-07

申请人： Leland Chang ,  Robert H. Dennard ,  Brian L. Ji ,  Wing K. Luk ,  Robert K. Montoye

发明人： Leland Chang ,  Robert H. Dennard ,  Brian L. Ji ,  Wing K. Luk ,  Robert K. Montoye

IPC分类号： G05F5/00

CPC分类号： H02M3/07 ,  H02M2003/072

摘要： A low voltage signaling system for integrated circuits includes a first voltage domain operating at a nominal integrated circuit (IC) power supply voltage (Vdd) swing level at a signal transmitting end of a first chip, a second voltage domain having one or more transmission interconnect lines operating at a reduced voltage swing level with respect to the first voltage domain, and a third voltage domain at a signal receiving end of a second chip, the third voltage domain operating at the Vdd swing level; wherein an input signal originating from the first voltage domain is down converted to operate at the reduced voltage swing level for transmission over the second voltage domain, and wherein the third voltage domain senses the input signal transmitted over the second voltage domain and generates an output signal operating back up at the Vdd swing level.

摘要翻译： 用于集成电路的低电压信号系统包括在第一芯片的信号发射端处以标称集成电路（IC）电源电压（Vdd）摆幅电平操作的第一电压域，具有一个或多个传输互连的第二电压域 以相对于第一电压域的降低的电压摆动电平工作的线路，以及在第二芯片的信号接收端的第三电压域，以Vdd摆动电平工作的第三电压域; 其中源自所述第一电压域的输入信号被降频转换以在所述降低的电压摆幅电平下工作以在所述第二电压域上传输，并且其中所述第三电压域检测在所述第二电压域上传输的输入信号，并产生输出信号 以Vdd摆动水平运行。

公开(公告)号：US20110204966A1

公开(公告)日：2011-08-25

申请号：US13098739

申请日：2011-05-02

申请人： Wai Lim NGAI

发明人： Wai Lim NGAI

IPC分类号： G05F3/02

CPC分类号： H02M3/07 ,  G01R15/06 ,  H02M2003/072

摘要： Methods and apparatus for capacitive voltage division are provided, an example apparatus having an input and an output and including a first switched capacitor circuit. In some embodiments, the capacitive voltage divider includes first and second MOSFETs. A first capacitor is coupled between the drain of the first MOSFET and the input to the capacitive voltage divider. A first circuit coupled to the drain of the first MOSFET is configured to pull down the drain of the first MOSFET and thus apply a reverse bias to a first junction diode internal to the first MOSFET between the drain and the bulk of the first MOSFET. A second capacitor is coupled between the source of the first MOSFET and the drain of the second MOSFET. A second circuit is configured to reverse bias a second junction diode between the drain and bulk of the second MOSFET.

公开(公告)号：US07907430B2

公开(公告)日：2011-03-15

申请号：US12338723

申请日：2008-12-18

申请人： Nihal Kularatna ,  Lewis Jayathu Fernando

发明人： Nihal Kularatna ,  Lewis Jayathu Fernando

IPC分类号： H02M3/18 ,  G05F1/00 ,  H02J7/00

CPC分类号： G05F1/46 ,  H02M3/07 ,  H02M2001/0045 ,  H02M2003/072

摘要： A linear voltage regulator which includes on its input side an array of switched super capacitors coupled between the power source and the load. This apparatus is capable of delivering currents typically from milliamperes to greater than several amperes at very low switching frequencies. In addition by using capacitors rather than resistors or transistor devices to drop voltage on the input side, power consumption is reduced. The array of capacitors is switched by simple analog circuitry or a switching logic with or without a processor subsystem and the capacitors themselves are of the super capacitor type, thus providing very high capacitance, and are effectively series connected during certain phases of operation with the input terminal of the conventional linear voltage regulator portion of the apparatus. Energy stored in the super capacitors during the various phases of operation is reused.

摘要翻译： 线性电压调节器，其在其输入侧包括耦合在电源和负载之间的开关超级电容器阵列。 该装置能够以非常低的开关频率将电流通常从毫安传递到大于几安培。 此外，通过使用电容器而不是电阻器或晶体管器件来降低输入侧的电压，降低了功耗。 电容器阵列由简单的模拟电路或具有或不具有处理器子系统的开关逻辑来切换，并且电容器本身是超级电容器类型，因此提供非常高的电容，并且在与输入的某些操作阶段有效地串联连接 端子的传统线性稳压器部分。 在各种操作阶段存储在超级电容器中的能量被重复使用。

公开(公告)号：US20110031818A1

公开(公告)日：2011-02-10

申请号：US12907194

申请日：2010-10-19

申请人： Tai-Her YANG

发明人： Tai-Her YANG

IPC分类号： H02M3/06

CPC分类号： H01H47/18 ,  H02J7/0068 ,  H02J7/345 ,  H02J9/005 ,  H02M3/07 ,  H02M7/155 ,  H02M7/217 ,  H02M2001/009 ,  H02M2003/072 ,  H03K17/162

摘要： A circuit installation that executes full voltage activation, division voltage operation, and delayed breaking brake to electric load by increasing the power to the load activated to promote its activation performance or reducing operation power in the course of operation by the load to save power consumption or limit operation performance of the load.

摘要翻译： 一种电路安装，通过增加对被起动的负载的功率来执行全电压启动，分压操作和延迟断开制动，以促进其启动性能或降低运行过程中的运行功率以节省功耗或 限制运行性能的负载。

公开(公告)号：US20100237931A1

公开(公告)日：2010-09-23

申请号：US12727123

申请日：2010-03-18

申请人： Ryu OGIWARA ,  Daisaburo TAKASHIMA

发明人： Ryu OGIWARA ,  Daisaburo TAKASHIMA

IPC分类号： G05F1/10

CPC分类号： G05F1/56 ,  G05F3/30 ,  H02M3/07 ,  H02M2003/072

摘要： An internal power supply voltage generation circuit 100 has a first charge pump circuit which steps up the external power supply voltage in response to the first clock signal and outputs a first stepped up voltage from the first voltage stepup output terminal; a second charge pump circuit which steps up the first stepup voltage in response to the second clock signal and outputs a second stepped up voltage from the second voltage stepup output terminal, the second stepped up voltage being higher than the first stepped up voltage; a first voltage stepdown circuit which steps down the first stepped up voltage and outputs a first stepped down voltage; and a second voltage stepdown circuit which steps down the second stepped up voltage and outputs a second stepped down voltage, the second stepped down voltage being higher than the first stepped up voltage.

摘要翻译： 内部电源电压产生电路100具有第一电荷泵电路，其响应于第一时钟信号升高外部电源电压，并从第一升压输出端子输出第一升压电压; 第二电荷泵电路，其响应于所述第二时钟信号升高所述第一升压电压，并且从所述第二升压输出端子输出第二升压电压，所述第二升压电压高于所述第一升压电压; 降低第一升压电压并输出第一降压电压的第一降压电路; 以及第二降压电路，其降低所述第二升压电压并输出第二降压电压，所述第二降压电压高于所述第一升压电压。