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1. 发明授权

US08913762B2 Capacitive transducer circuit and method 有权
标题翻译：电容式传感器电路及方法
公开(公告)号：US08913762B2
公开(公告)日：2014-12-16
申请号：US12812390
申请日：2009-05-07
申请人： Colin Findlay Steele , Goran Stojanovic , John Paul Lesso
发明人： Colin Findlay Steele , Goran Stojanovic , John Paul Lesso
IPC分类号： H03M1/00 , G01D3/032 , G01D5/24 , H04R3/00 , H04R19/00 , H04R19/04
CPC分类号： G01D5/24 , G01D3/032 , H04R3/00 , H04R19/005 , H04R19/04
摘要： A capacitive transducer circuit comprises a capacitive transducer having first and second electrodes. The first and second electrodes are biased by respective first and second bias voltages. An amplifier is connected to receive a first analog signal on an input terminal, the first analog signal being generated by the capacitive transducer, and to generate a second analog signal on an output terminal. A digital feedback circuit is connected between the output terminal of the amplifier and the input terminal of the amplifier. The digital feedback circuit is configured to provide one of said first or second bias voltages. The output of a voltage source which provides the other bias voltage for the capacitive transducer may be filtered by a low pass filter. The low pass filter may comprise a switched capacitor filter circuit.
摘要翻译：电容式换能器电路包括具有第一和第二电极的电容换能器。第一和第二电极被相应的第一和第二偏置电压偏置。放大器被连接以在输入端子上接收第一模拟信号，第一模拟信号由电容换能器产生，并在输出端产生第二模拟信号。数字反馈电路连接在放大器的输出端和放大器的输入端之间。数字反馈电路被配置为提供所述第一或第二偏置电压之一。提供电容换能器的另一个偏置电压的电压源的输出可以被低通滤波器滤波。低通滤波器可以包括开关电容滤波器电路。

2. 发明申请

US20130120063A1 AMPLIFIER CIRCUIT 有权
标题翻译：放大器电路
公开(公告)号：US20130120063A1
公开(公告)日：2013-05-16
申请号：US13673760
申请日：2012-11-09
申请人： John Paul Lesso
发明人： John Paul Lesso
IPC分类号： H03F3/217
CPC分类号： H03F3/2173
摘要： Class D amplifier circuits for amplifying an input signal. The amplifier has an H-bridge output stage and thus has switches for switchably connecting a first output to a first voltage, e.g. Vdd, or a second voltage (e.g. ground) and for switchably connecting a second output to the first or second voltages. A switch controller is configured to control the H-bridge stage so as to vary between a plurality of states including at least a first state in which the outputs are both connected to the first voltage and a second state in which the outputs are both connected to said second voltage. The switch controller is configured to vary the proportion of time spent in the first state relative to the second state based on an indication of the amplitude of the input signal. The amplifier may therefore have first circuitry for deriving a proportion value (α) based on the input signal (Din) and second circuitry for generating control signals for selecting the first state or said second state based on the proportion value (α).
摘要翻译： D类放大器电路，用于放大输入信号。放大器具有H桥输出级，因此具有用于可切换地将第一输出连接到第一电压的开关，例如， Vdd或第二电压（例如接地），并且用于将第二输出可切换地连接到第一或第二电压。开关控制器被配置为控制H桥级，以便在包括至少第一状态的多个状态之间变化，其中输出都连接到第一电压，并且其中输出都连接到第二状态表示第二电压。开关控制器被配置为基于输入信号的幅度的指示来改变在第一状态下相对于第二状态所花费的时间的比例。因此，放大器可以具有用于基于输入信号（Din）导出比例值（α）的第一电路和用于基于比例值（α）产生用于选择第一状态或所述第二状态的控制信号的第二电路。

3. 发明申请

US20120154032A1 DC OFFSET COMPENSATION 有权
标题翻译：直流偏移补偿
公开(公告)号：US20120154032A1
公开(公告)日：2012-06-21
申请号：US13327009
申请日：2011-12-15
申请人： John Paul Lesso
发明人： John Paul Lesso
IPC分类号： H03F1/38
CPC分类号： H03F3/181 , H03F1/304 , H03F3/183 , H03F2200/03 , H03K3/013
摘要： An apparatus and method for DC offset compensation. An amplifier receives an input signal (AIN) and provides an amplified output signal (SOUT) and a feedback path provides DC offset compensation. The feedback path comprises at least one voltage controlled oscillator (VCO) and a counter. The VCO provides, over time, a first VCO output signal based on said amplified output signal and a second VCO output signal based on a reference signal (VREF). The counter generates first pulse counts based upon the first VCO output signal and second pulse counts based upon the second VCO output signal and provides a compensation signal based on a comparison of the first and second pulse counts. One voltage controlled oscillator may sequentially receive a signal based on said amplifier output signal and the reference signal from a multiplexer so as to sequentially produce the first and second VCO output signals.
摘要翻译：一种用于直流偏移补偿的装置和方法。放大器接收输入信号（AIN）并提供放大的输出信号（SOUT），反馈路径提供DC偏移补偿。反馈路径包括至少一个压控振荡器（VCO）和计数器。 VCO随时间提供基于所述放大的输出信号的第一VCO输出信号和基于参考信号（VREF）的第二VCO输出信号。计数器基于第一VCO输出信号和基于第二VCO输出信号的第二脉冲计数产生第一脉冲计数，并且基于第一和第二脉冲计数的比较来提供补偿信号。一个压控振荡器可以基于所述放大器输出信号和来自多路复用器的参考信号顺序地接收信号，以便顺序产生第一和第二VCO输出信号。

4. 发明授权

US08198941B2 Amplifier circuit and method of amplifying a signal in an amplifier circuit 有权
标题翻译：放大器电路和放大电路中信号放大的方法
公开(公告)号：US08198941B2
公开(公告)日：2012-06-12
申请号：US12671656
申请日：2008-08-04
申请人： John Paul Lesso
发明人： John Paul Lesso
IPC分类号： H03F3/04
CPC分类号： H03G3/3015 , H03F1/0216 , H03F1/0227 , H03F1/0261 , H03F1/30 , H03F3/185 , H03F3/193 , H03F2200/03 , H03F2200/504 , H03G3/001
摘要： There is provided an amplifier circuit, comprising: an input, for receiving an input signal to be amplified; a power amplifier, for amplifying the input signal; a switched power supply, having a switching frequency, for providing at least one supply voltage to the power amplifier; and a dither block, for dithering the switching frequency of the switched power supply. The dither block is controlled based on the input signal. Another aspect of the invention involves using first and second switches, each having different capacitances and resistances, and using the first or second switch depending on the input signal or volume signal. Another aspect of the invention involves controlling a bias signal provided to one or more components in the signal path based on the input signal or volume signal.
摘要翻译：提供了一种放大器电路，包括：输入端，用于接收待放大的输入信号; 功率放大器，用于放大输入信号; 具有开关频率的开关电源，用于向所述功率放大器提供至少一个电源电压; 以及抖动块，用于使开关电源的开关频率抖动。基于输入信号控制抖动块。本发明的另一方面涉及使用具有不同电容和电阻的第一和第二开关，以及根据输入信号或音量信号使用第一或第二开关。本发明的另一方面涉及基于输入信号或音量信号控制提供给信号路径中的一个或多个分量的偏置信号。

5. 发明申请

US20110273151A1 DC-DC CONVERTER CIRCUITS, AND METHODS AND APPARATUS INCLUDING SUCH CIRCUITS 有权
标题翻译： DC-DC转换器电路，以及包括这种电路的方法和装置
公开(公告)号：US20110273151A1
公开(公告)日：2011-11-10
申请号：US13184101
申请日：2011-07-15
申请人： John Paul Lesso , John L. Pennock
发明人： John Paul Lesso , John L. Pennock
IPC分类号： G05F1/10
CPC分类号： H02M3/1582 , H02M3/158 , H02M3/33561
摘要： Electrical power from an input voltage supply is converted to first and second output voltages of opposite polarities using a single inductor (L) and only four principal switches (S1, S2, S4, S6). In contrast to known circuits, none of the switches is exposed to voltages greater than the input voltage (V1). In a first type of charging cycle (FIG. 5(a)-(c)), the first output voltage (V2+) is obtained from the input voltage supply through the inductor. In a second type of charging cycle (FIG. 5 (d)-(f)), the second output voltage (V2−) is obtained from the first output voltage via the intermediate step of storing energy in the same inductor as is used in the first type of charging cycle. Auxiliary switches (S7a, S7b) can be operated in wait states between cycles of the first and second type.
摘要翻译：使用单个电感器（L）和仅四个主开关（S1，S2，S4，S6）将来自输入电压源的电力转换为具有相反极性的第一和第二输出电压。与已知的电路相比，没有一个开关暴露于大于输入电压（V1）的电压。在第一种充电周期（图5（a） - （c））中，从通过电感器的输入电压源获得第一输出电压（V2 +）。在第二种类型的充电周期（图5（d） - （f））中，通过中间步骤从第一输出电压获得第二输出电压（V2-），该中间步骤将能量存储在与第一种充电周期。辅助开关（S7a，S7b）可在第一和第二类型的周期之间以等待状态运行。

6. 发明授权

US07667508B2 Frequency synthesizer 有权
标题翻译：频率合成器
公开(公告)号：US07667508B2
公开(公告)日：2010-02-23
申请号：US12219074
申请日：2008-07-15
申请人： John Paul Lesso
发明人： John Paul Lesso
IPC分类号： H03L7/06
CPC分类号： H03L7/093 , H03L7/18
摘要： A circuit for receiving an input signal and generating an output signal, the input signal having a first frequency, the output signal having a second frequency. The circuit comprises a forward branch for generating the output signal and a return branch for feeding back the output signal. The return branch comprises a frequency divider for receiving the output signal, for dividing the frequency of the output signal by a factor, and for outputting a modified output signal. The forward branch comprises a detector for comparing the input signal and the modified output signal and outputting a comparison signal indicative of the comparison; a word-length reduction circuit for reducing the number of bits of the comparison signal, thereby generating a reduced-length comparison signal; a digital-to-analog converter for converting the reduced-length comparison signal to analog, thereby generating an analog signal; and an oscillator, controlled by said analog signal. By reducing the word length of the input to the digital-to-analog converter, the digital-to-analog converter may be greatly simplified.
摘要翻译：一种用于接收输入信号并产生输出信号的电路，所述输入信号具有第一频率，所述输出信号具有第二频率。电路包括用于产生输出信号的正向分支和用于反馈输出信号的返回分支。返回分支包括用于接收输出信号的分频器，用于将输出信号的频率除以因子，并输出修改的输出信号。正向分支包括用于比较输入信号和修改的输出信号并输出表示比较的比较信号的检测器; 用于减少比较信号的比特数的字长减小电路，从而生成缩小比例信号; 数模转换器，用于将缩小比例信号转换为模拟信号，从而产生模拟信号; 以及由所述模拟信号控制的振荡器。通过减少输入到数模转换器的字长，可以大大简化数模转换器。

7. 发明申请

US20090256642A1 LOCKED-LOOP CIRCUIT 审中-公开
标题翻译：锁定环路
公开(公告)号：US20090256642A1
公开(公告)日：2009-10-15
申请号：US12419834
申请日：2009-04-07
申请人： John Paul Lesso
发明人： John Paul Lesso
IPC分类号： H03L7/085
CPC分类号： H03L7/08 , H03L7/0812 , H03L7/0891 , H03L7/18
摘要： A locked loop circuit, comprising: an input, for receiving an input signal; controllable modification circuitry for generating a signal; an output for the generated signal; a feedback loop for the generated signal; a comparator for comparing the input signal and a signal from the feedback loop, and for producing a comparison signal; circuitry for controlling the modification circuitry on the basis of the comparison signal; and dither circuitry, for adjusting the comparison signal by applying a dither value, where the dither value is non-zero at all times.
摘要翻译：一种锁定环路电路，包括：输入端，用于接收输入信号; 用于产生信号的可控修改电路; 产生的信号的输出; 用于产生的信号的反馈回路; 比较器，用于比较输入信号和来自反馈回路的信号，并用于产生比较信号; 用于根据比较信号控制修改电路的电路; 和抖动电路，用于通过施加抖动值来调整比较信号，其中抖动值始终为非零。

8. 发明授权

US09136755B2 Charge pump circuit 有权
标题翻译：电荷泵电路
公开(公告)号：US09136755B2
公开(公告)日：2015-09-15
申请号：US13336835
申请日：2011-12-23
申请人： John Paul Lesso , Peter John Frith , John Laurence Pennock
发明人： John Paul Lesso , Peter John Frith , John Laurence Pennock
IPC分类号： G05F1/10 , G05F3/02 , H02M3/07
CPC分类号： H02M3/07 , H02M2003/071 , H02M2003/072 , H03G3/30
摘要： A bipolar output charge pump circuit having a network of switching paths 110 for selectively connecting an input node (VV) and a reference node (VG) for connection to an input voltage, a first pair of output nodes (VP, VN), two pairs of flying capacitor nodes (CF1A, CF1B; CF2A, CF2B), and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors (CF1, CF2) connected to the two pairs of flying capacitor nodes, to provide a first mode and a second mode when in use with two flying capacitors connected to the flying capacitor nodes, wherein at least the first mode corresponds to a bipolar output voltage of +/−3VV, +/−VV/5 or +/−VV/6.
摘要翻译：一种双极性输出电荷泵电路，具有用于选择性地连接输入节点（VV）和用于连接到输入电压的参考节点（VG）的开关路径110的网络，第一对输出节点（VP，VN），两对的飞行电容器节点（CF1A，CF1B; CF2A，CF2B）和用于控制切换路径网络的切换的控制器。当与两对飞跨电容器节点连接的两个浮动电容器（CF1，CF2）使用时，该控制器可操作以控制开关路径网络，以在连接两个飞行电容器时提供第一模式和第二模式其中至少第一模式对应于+/- 3VV，+/- VV / 5或+/- VV / 6的双极性输出电压。

9. 发明申请

US20120170770A1 CHARGE PUMP CIRCUIT 有权
标题翻译：充电泵电路
公开(公告)号：US20120170770A1
公开(公告)日：2012-07-05
申请号：US13336835
申请日：2011-12-23
申请人： John Paul Lesso , Peter John Frith , John Laurence Pennock
发明人： John Paul Lesso , Peter John Frith , John Laurence Pennock
IPC分类号： H03G3/00 , H02B1/00 , G05F1/10
CPC分类号： H02M3/07 , H02M2003/071 , H02M2003/072 , H03G3/30
摘要： A bipolar output charge pump circuit having a network of switching paths 110 for selectively connecting an input node (VV) and a reference node (VG) for connection to an input voltage, a first pair of output nodes (VP, VN), two pairs of flying capacitor nodes (CF1A, CF1B; CF2A, CF2B), and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors (CF1, CF2) connected to the two pairs of flying capacitor nodes, to provide a first mode and a second mode when in use with two flying capacitors connected to the flying capacitor nodes, wherein at least the first mode corresponds to a bipolar output voltage of +/−3VV, +/−VV/5 or +/−VV/6.
摘要翻译：一种双极性输出电荷泵电路，具有用于选择性地连接输入节点（VV）和用于连接到输入电压的参考节点（VG）的开关路径110的网络，第一对输出节点（VP，VN），两对的飞行电容器节点（CF1A，CF1B; CF2A，CF2B）和用于控制切换路径网络的切换的控制器。当与两对飞跨电容器节点连接的两个浮动电容器（CF1，CF2）使用时，该控制器可操作以控制开关路径网络，以在连接两个飞行电容器时提供第一模式和第二模式其中至少第一模式对应于+/- 3VV，+/- VV / 5或+/- VV / 6的双极性输出电压。

10. 发明申请

US20120163632A1 CHARGE PUMP CIRCUIT 有权
标题翻译：充电泵电路
公开(公告)号：US20120163632A1
公开(公告)日：2012-06-28
申请号：US13403450
申请日：2012-02-23
申请人： John Paul Lesso , Peter John Frith , John Laurence Pennock
发明人： John Paul Lesso , Peter John Frith , John Laurence Pennock
IPC分类号： H03G3/00 , G05F1/10
CPC分类号： H02M3/07 , H02M1/00 , H02M2001/0083 , H02M2001/009 , H03F3/181
摘要： A bipolar output charge pump circuit 100 having a network of switching paths 110 for selectively connecting an input node (VV) and a reference node (VG) for connection to an input voltage, a first pair of output nodes (VP, VN) and a second pair of output nodes (VQ, VM), and two pairs of flying capacitor nodes (CF1A, CF1 B; CF2A, CF2B), and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors (CF1, CF2) connected to the two pairs of flying capacitor nodes, to provide a first bipolar output voltage at the first pair of output nodes (VP, VN) and a second bipolar output voltage at the second pair of bipolar output nodes (VQ, VM).
摘要翻译：具有用于选择性地连接输入节点（VV）和用于连接到输入电压的参考节点（VG）的开关路径网络的双极性输出电荷泵电路100，第一对输出节点（VP，VN）和第二对输出节点（VQ，VM）和两对飞电容器节点（CF1A，CF1B; CF2A，CF2B），以及用于控制切换路径网络切换的控制器。控制器可操作以在与两对飞跨电容器节点连接的两个飞行电容器（CF1，CF2）使用时控制开关路径网络，以在第一对输出节点（VP， VN）和在第二对双极输出节点（VQ，VM）处的第二双极性输出电压。

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