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公开(公告)号：US08264273B2
公开(公告)日：2012-09-11
申请号：US12744073
申请日：2008-12-08
Applicant: Douglas James Wallace MacFarlane
Inventor： Douglas James Wallace MacFarlane
IPC: G05F1/10
CPC classification number: H02M3/07
Abstract: A method of generating a voltage supply (Vout+, Vout−) from a single input supply (+VDD), comprising connecting at least one flying capacitor (Cf) to at least one reservoir capacitor (CR1, CR2) and to the input supply in repeated cycles so as to generate a voltage on said reservoir capacitor, the cycles differing between at least two modes so that each mode generates a different voltage on said reservoir capacitor the method including changing from an existing one of said modes to enter a new one of said modes during operation, and operating in at least one transitional mode for a period prior to entering fully said new mode.
Abstract translation: 一种从单个输入电源（+ VDD）产生电压源（Vout +，Vout-）的方法，包括将至少一个快速电容器（Cf）连接到至少一个储存电容器（CR1，CR2）和至少一个储存电容器 重复循环，以便在所述储存电容器上产生电压，所述循环在至少两种模式之间不同，使得每种模式在所述储存电容器上产生不同的电压，所述方法包括从现有的所述模式中的一种转换为输入新的 所述模式在操作期间，并且在进入完全所述新模式之前的一段时间内以至少一个过渡模式操作。
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公开(公告)号：US08508288B2
公开(公告)日：2013-08-13
申请号：US13603222
申请日：2012-09-04
Applicant: Douglas James Wallace MacFarlane
Inventor： Douglas James Wallace MacFarlane
IPC: G05F1/10
CPC classification number: H02M3/07
Abstract: A method of generating a voltage supply (Vout+, Vout−) from a single input supply (+VDD), comprising connecting at least one flying capacitor (Cf) to at least one reservoir capacitor (CR1, CR2) and to the input supply in repeated cycles so as to generate a voltage on said reservoir capacitor, the cycles differing between at least two modes so that each mode generates a different voltage on said reservoir capacitor the method including changing from an existing one of said modes to enter a new one of said modes during operation, and operating in at least one transitional mode for a period prior to entering fully said new mode.
Abstract translation: 一种从单个输入电源（+ VDD）产生电压源（Vout +，Vout-）的方法，包括将至少一个快速电容器（Cf）连接到至少一个储能电容器（CR1，CR2）和与所述输入电源 重复循环，以便在所述储存电容器上产生电压，所述循环在至少两种模式之间不同，使得每种模式在所述储存电容器上产生不同的电压，所述方法包括从现有的所述模式中的一种转换为输入新的 所述模式在操作期间，并且在进入完全所述新模式之前的一段时间内以至少一个过渡模式操作。
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公开(公告)号：US08699726B2
公开(公告)日：2014-04-15
申请号：US12649525
申请日：2009-12-30
Applicant: Colin Findlay Steele , Douglas James Wallace MacFarlane
Inventor： Colin Findlay Steele , Douglas James Wallace MacFarlane
IPC: H04R3/00
CPC classification number: H04R3/00 , A61B8/4444 , A61B8/56 , H04R19/005 , H04R19/04 , H04R29/004
Abstract: An apparatus comprising a capacitive transducer, for example a MEMS microphone. A first voltage generator is connected to receive a first voltage (VDD*) and generate a second voltage (VCP) for biasing the capacitive transducer. A control circuit is adapted to, in use, control the first voltage (VDD*) based on a calibration value, wherein a different calibration value would lead to a different first voltage level and the calibration value is set such that an input signal of known amplitude produces an output signal of predetermined amplitude.
Abstract translation: 一种包括电容换能器，例如MEMS麦克风的装置。 连接第一电压发生器以接收第一电压（VDD *）并产生用于偏置电容式换能器的第二电压（VCP）。 控制电路适于在使用中基于校准值来控制第一电压（VDD *），其中不同的校准值将导致不同的第一电压电平，并且校准值被设置为使已知的输入信号 振幅产生预定幅度的输出信号。
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Patent Agency Ranking
公开(公告)号：US08541993B2
公开(公告)日：2013-09-24
申请号：US12841722
申请日：2010-07-22
Applicant: Andrew Notman , Mark McCloy-Stevens , Douglas James Wallace MacFarlane , Holger Haiplik
CPC classification number: H02M3/1588 , H02M1/38 , H02M2001/0009 , H02M2001/0032 , Y02B70/1466
Abstract: Methods and apparatus for control of DC-DC converters, especially in valley current mode. The DC-DC converter is operable so that a low side supply switch may be turned off, before the high side supply switch is turned on. During the period when both switches are off the current loop control remains active and the change in inductor (L) current is emulated. One embodiment uses a current sensor for lossless current sensing and emulates the change in inductor current by holding the value of the output of the current sensor (ISNS) at the time that the low side switch turns off and adding an emulated ramp signal (VISLP) until the inductor current reaches zero. Embodiment employing a pulse-skip mode of operation based on a minimum conduction time are also disclosed. The invention enables a seamless transition from Continuous Conduction Mode the Discontinuous Conduction Mode and Pulse Skipping and provide converters that are efficient at low current loads.
Abstract translation: 用于控制DC-DC转换器的方法和装置，特别是在谷电流模式下。 在高侧供电开关接通之前，DC-DC转换器可操作使得可以关闭低侧供电开关。 在两个开关断开期间，电流环路控制保持有效，并且仿真电感（L）电流的变化。 一个实施例使用电流传感器进行无损耗电流检测，并通过在低侧开关断开时保持电流传感器（ISNS）的输出值并添加仿真斜坡信号（VISLP）来模拟电感器电流的变化， 直到电感电流达到零。 还公开了采用基于最小导通时间的脉冲跳过操作模式的实施例。 本发明实现了从连续导通模式不连续导通模式和脉冲跳跃的无缝转换，并提供了在低电流负载下有效的转换器。
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公开(公告)号：US20120326771A1
公开(公告)日：2012-12-27
申请号：US13603222
申请日：2012-09-04
Applicant: Douglas James Wallace MacFarlane
Inventor： Douglas James Wallace MacFarlane
IPC: G05F3/02
CPC classification number: H02M3/07
Abstract: A method of generating a voltage supply (Vout+, Vout−) from a single input supply (+VDD), comprising connecting at least one flying capacitor (Cf) to at least one reservoir capacitor (CR1, CR2) and to the input supply in repeated cycles so as to generate a voltage on said reservoir capacitor, the cycles differing between at least two modes so that each mode generates a different voltage on said reservoir capacitor the method including changing from an existing one of said modes to enter a new one of said modes during operation, and operating in at least one transitional mode for a period prior to entering fully said new mode.
Abstract translation: 一种从单个输入电源（+ VDD）产生电压源（Vout +，Vout-）的方法，包括将至少一个快速电容器（Cf）连接到至少一个储能电容器（CR1，CR2）和与所述输入电源 重复循环，以便在所述储存电容器上产生电压，所述循环在至少两种模式之间不同，使得每种模式在所述储存电容器上产生不同的电压，所述方法包括从现有的所述模式中的一种转换为输入新的 所述模式在操作期间，并且在进入完全所述新模式之前的一段时间内以至少一个过渡模式操作。
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公开(公告)号：US20110050185A1
公开(公告)日：2011-03-03
申请号：US12841722
申请日：2010-07-22
Applicant: Andrew Notman , Mark McCloy-Stevens , Douglas James Wallace MacFarlane , Holger Haiplik
IPC: G05F1/56
CPC classification number: H02M3/1588 , H02M1/38 , H02M2001/0009 , H02M2001/0032 , Y02B70/1466
Abstract: Methods and apparatus for control of DC-DC converters, especially in valley current mode. The DC-DC converter is operable so that a low side supply switch may be turned off, before the high side supply switch is turned on. During the period when both switches are off the current loop control remains active and the change in inductor (L) current is emulated. One embodiment uses a current sensor for lossless current sensing and emulates the change in inductor current by holding the value of the output of the current sensor (ISNS) at the time that the low side switch turns off and adding an emulated ramp signal (VISLP) until the inductor current reaches zero. Embodiment employing a pulse-skip mode of operation based on a minimum conduction time are also disclosed. The invention enables a seamless transition from Continuous Conduction Mode the Discontinuous Conduction Mode and Pulse Skipping and provide converters that are efficient at low current loads.
Abstract translation: 用于控制DC-DC转换器的方法和装置，特别是在谷电流模式下。 在高侧供电开关接通之前，DC-DC转换器可操作使得可以关闭低侧供电开关。 在两个开关断开期间，电流环路控制保持有效，并且仿真电感（L）电流的变化。 一个实施例使用电流传感器进行无损耗电流检测，并通过在低侧开关断开时保持电流传感器（ISNS）的输出值并添加仿真斜坡信号（VISLP）来模拟电感器电流的变化， 直到电感电流达到零。 还公开了采用基于最小导通时间的脉冲跳过操作模式的实施例。 本发明实现了从连续导通模式不连续导通模式和脉冲跳跃的无缝转换，并提供了在低电流负载下有效的转换器。
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公开(公告)号：US20100277152A1
公开(公告)日：2010-11-04
申请号：US12744073
申请日：2008-12-08
Applicant: Douglas James Wallace MacFarlane
Inventor： Douglas James Wallace MacFarlane
IPC: G05F1/10
CPC classification number: H02M3/07
Abstract: A method of generating a voltage supply (Vout+, Vout−) from a single input supply (+VDD), comprising connecting at least one flying capacitor (Cf) to at least one reservoir capacitor (CR1, CR2) and to the input supply in repeated cycles so as to generate a voltage on said reservoir capacitor, the cycles differing between at least two modes so that each mode generates a different voltage on said reservoir capacitor the method including changing from an existing one of said modes to enter a new one of said modes during operation, and operating in at least one transitional mode for a period prior to entering fully said new mode.
Abstract translation: 一种从单个输入电源（+ VDD）产生电压源（Vout +，Vout-）的方法，包括将至少一个快速电容器（Cf）连接到至少一个储能电容器（CR1，CR2）和与所述输入电源 重复循环，以便在所述储存电容器上产生电压，所述循环在至少两种模式之间不同，使得每种模式在所述储存电容器上产生不同的电压，所述方法包括从现有的所述模式中的一种转换为输入新的 所述模式在操作期间，并且在进入完全所述新模式之前的一段时间内以至少一个过渡模式操作。
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公开(公告)号：US20100166228A1
公开(公告)日：2010-07-01
申请号：US12649525
申请日：2009-12-30
Applicant: Colin Findlay Steele , Douglas James Wallace MacFarlane
Inventor： Colin Findlay Steele , Douglas James Wallace MacFarlane
IPC: H04R3/00
CPC classification number: H04R3/00 , A61B8/4444 , A61B8/56 , H04R19/005 , H04R19/04 , H04R29/004
Abstract: An apparatus comprising a capacitive transducer, for example a MEMS microphone. A first voltage generator is connected to receive a first voltage (VDD*) and generate a second voltage (VCP) for biasing the capacitive transducer. A control circuit is adapted to, in use, control the first voltage (VDD*) based on a calibration value, wherein a different calibration value would lead to a different first voltage level and the calibration value is set such that an input signal of known amplitude produces an output signal of predetermined amplitude.
Abstract translation: 一种包括电容换能器，例如MEMS麦克风的装置。 连接第一电压发生器以接收第一电压（VDD *）并产生用于偏置电容式换能器的第二电压（VCP）。 控制电路适于在使用中基于校准值来控制第一电压（VDD *），其中不同的校准值将导致不同的第一电压电平，并且校准值被设置为使已知的输入信号 振幅产生预定幅度的输出信号。
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