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公开(公告)号：US08401207B2
公开(公告)日：2013-03-19
申请号：US12748097
申请日：2010-03-26
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
CPC分类号： H04R3/002 , H03F1/32 , H03F1/56 , H03F3/187 , H03F3/45475 , H03F2200/03 , H03F2203/45136 , H03F2203/45138 , H03F2203/45526 , H04R3/04 , H04R29/001
摘要： An audio amplifier is operated in an audio system with optimized source impedance to minimize distortion in a loudspeaker that is paired with the audio amplifier. The audio amplifier provides an amplified audio signal to drive the loudspeaker. A variable output impedance of the audio amplifier is controlled using a feedback control loop to allow negative output impedance at low frequencies that changes to positive output impedance at higher frequencies. The change from negative output impedance to positive output impedance occurs at a determined threshold frequency or determined transitional frequency band.
摘要翻译： 音频放大器在具有优化的源阻抗的音频系统中操作，以最小化与音频放大器配对的扬声器中的失真。 音频放大器提供放大的音频信号来驱动扬声器。 使用反馈控制回路控制音频放大器的可变输出阻抗，以允许在较低频率下的负输出阻抗在较高频率下改变为正输出阻抗。 从负输出阻抗到正输出阻抗的变化发生在确定的阈值频率或确定的过渡频带。
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公开(公告)号：US08194424B2
公开(公告)日：2012-06-05
申请号：US12116794
申请日：2008-05-07
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
CPC分类号： H03F3/217 , H02M7/48 , H02M2001/0012
摘要： A switching DC to AC power converter includes an automatic zero voltage switching (ZVS) mode controller. The automatic zero voltage switching mode controller may adjust a ZVS dead-time in accordance with a range of load currents being supplied by the power converter that range from quiescent conditions to a predetermined loading level of the power converter. The variable ZVS dead-time may be larger nearer to quiescent conditions, and become progressively smaller as load currents increase. Outside a predetermined range of load currents, the variable ZVS dead-time may be disabled or minimized.
摘要翻译： 开关直流到交流电源转换器包括自动零电压开关（ZVS）模式控制器。 自动零电压开关模式控制器可以根据从功率转换器提供的负载电流的范围来调节ZVS死区时间，该范围从静态条件到功率转换器的预定负载水平。 可变ZVS死区时间可能更接近于静态条件，并且随着负载电流的增加而逐渐变小。 在预定范围的负载电流之外，可以禁用或最小化可变的ZVS死区时间。
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公开(公告)号：US20100019846A1
公开(公告)日：2010-01-28
申请号：US12573674
申请日：2009-10-05
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
IPC分类号： H03F3/217
CPC分类号： H03F3/2173 , H03F1/32 , H03K7/08 , H03K17/16 , H03K2217/0036
摘要： An amplifier having improved distortion characteristics is set forth. The amplifier includes an interleaved PWM amplifier that generates interleaved PWM pulses in response to a modified input signal and one or more carrier signals. The interleaved PWM pulses of the amplifier are used to drive a power stage, such as an opposed current power stage. The amplifier also includes an interleaved PWM generator that provides interleaved PWM pulses in response to the modified input signal and one or more further carrier signals. The carrier signals used by the PWM generator may differ in phase from the carrier signals used by the interleaved PWM amplifier to generate its interleaved PWM pulses. One or more feedback circuits are employed in the generation of the modified input signal. More particularly, the feedback circuit(s) generates the modified input signal based on an input signal that is to be amplified and the interleaved PWM pulses of the interleaved PWM generator.
摘要翻译： 阐述了具有改进的失真特性的放大器。 放大器包括交织的PWM放大器，其响应于修改的输入信号和一个或多个载波信号而产生交织的PWM脉冲。 放大器的交错PWM脉冲用于驱动功率级，例如相对的电流功率级。 放大器还包括交错PWM发生器，其响应于修改的输入信号和一个或多个其它载波信号提供交织的PWM脉冲。 PWM发生器使用的载波信号可能与交错的PWM放大器使用的载波信号的相位不同，以产生其交错的PWM脉冲。 在生成修改的输入信号时采用一个或多个反馈电路。 更具体地，反馈电路基于要被放大的输入信号和交织的PWM发生器的交错PWM脉冲产生修改的输入信号。
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公开(公告)号：US20090267656A1
公开(公告)日：2009-10-29
申请号：US12499017
申请日：2009-07-07
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
IPC分类号： H03K4/06
CPC分类号： H03F3/217 , H03F2200/03 , H03F2200/351 , H03F2200/78 , H03K4/06 , H03K7/08
摘要： A triangle waveform generator is set forth that comprises a capacitive element, a regulator, and a control circuit. The regulator is configured to charge the capacitive element in responsive to a first control signal and to discharge the capacitive element in response to a second control signal. The control circuit is responsive to a reference waveform to generate the first and second control signals. In one example, the control circuit generates the first and second control signals in response to the amplitude, frequency, phase, and symmetry of the reference waveform.
摘要翻译： 提出了一种三角形波形发生器，其包括电容元件，调节器和控制电路。 调节器被配置为响应于第一控制信号对电容元件充电，并响应于第二控制信号对电容元件进行放电。 控制电路响应参考波形以产生第一和第二控制信号。 在一个示例中，控制电路响应于参考波形的幅度，频率，相位和对称性而产生第一和第二控制信号。
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公开(公告)号：US07598714B2
公开(公告)日：2009-10-06
申请号：US11485612
申请日：2006-07-12
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
CPC分类号： H03F3/2173 , H03F1/32 , H03K7/08 , H03K17/16 , H03K2217/0036
摘要： An amplifier having improved distortion characteristics is set forth. The amplifier includes an interleaved PWM amplifier that generates interleaved PWM pulses in response to a modified input signal and one or more carrier signals. The interleaved PWM pulses of the amplifier are used to drive a power stage, such as an opposed current power stage. The amplifier also includes an interleaved PWM generator that provides interleaved PWM pulses in response to the modified input signal and one or more further carrier signals. The carrier signals used by the PWM generator may differ in phase from the carrier signals used by the interleaved PWM amplifier to generate its interleaved PWM pulses. One or more feedback circuits are employed in the generation of the modified input signal. More particularly, the feedback circuit(s) generates the modified input signal based on an input signal that is to be amplified and the interleaved PWM pulses of the interleaved PWM generator.
摘要翻译： 阐述了具有改进的失真特性的放大器。 放大器包括交织的PWM放大器，其响应于修改的输入信号和一个或多个载波信号而产生交织的PWM脉冲。 放大器的交错PWM脉冲用于驱动功率级，例如相对的电流功率级。 放大器还包括交错PWM发生器，其响应于修改的输入信号和一个或多个其它载波信号提供交织的PWM脉冲。 PWM发生器使用的载波信号可能与交错的PWM放大器使用的载波信号的相位不同，以产生其交错的PWM脉冲。 在生成修改的输入信号时采用一个或多个反馈电路。 更具体地，反馈电路基于要被放大的输入信号和交织的PWM发生器的交错PWM脉冲产生修改的输入信号。
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公开(公告)号：US07554820B2
公开(公告)日：2009-06-30
申请号：US11231160
申请日：2005-09-20
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
CPC分类号： H02M3/3376 , H02M7/53871 , Y02B70/1433 , Y02B70/1441
摘要： A series resonant Dc-DC converter powers an audio amplifier as a load. The series resonant DC-DC converter may include a power input stage, a switching stage, a series resonant stage, a transformer stage and a power output stage. The series resonant DC-DC converter further may include a clamping stage and a leakage inductance canceling stage. The clamping stage may operate to clamp an excess voltage generated at least by a leakage inductance and a parasitic capacitance. The leakage inductance canceling stage may operate to generate a voltage drop corresponding to a voltage drop generated by the leakage inductance. The generated voltage drop may be subject to clamping. The clamping stage may operate under all load conditions without any influence of the leakage inductance. As a result, the series resonant converter may achieve improved load regulation.
摘要翻译： 串联谐振Dc-DC转换器为音频放大器作为负载供电。 串联谐振DC-DC转换器可以包括功率输入级，开关级，串联谐振级，变压器级和功率输出级。 串联谐振DC-DC转换器还可以包括钳位级和漏电感消除级。 钳位级可以用于钳位至少由漏电感和寄生电容产生的过电压。 泄漏电感消除级可以工作以产生对应于由漏电感产生的电压降的电压降。 产生的电压降可能受到夹紧。 钳位级可以在所有负载条件下工作，而不受漏电感的影响。 结果，串联谐振转换器可以实现改进的负载调节。
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7.发明授权Oscillator having a sixteen bit signal generation utilizing an eight bit processor 失效具有利用八位处理器的16位信号产生的振荡器
公开(公告)号：US4604719A
公开(公告)日：1986-08-05
申请号：US544280
申请日：1983-10-21
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
摘要： A programmable signal generator which utilizes an eight bit microprocessor to generate a sixteen bit signal. Information is passed from an eight bit processor having a sixteen bit address register into one or more latches to produce a sixteen bit digital signal. The generator may be utilized in a time delay spectrometer to produce digital signals in quadrature form which are analyzed by the system microprocessor.
摘要翻译： 一个可编程信号发生器，利用八位微处理器产生十六位信号。 信息从具有十六位地址寄存器的八位处理器传递到一个或多个锁存器中以产生十六位数字信号。 发生器可以用在时间延迟光谱仪中以产生正交形式的数字信号，这些数字信号由系统微处理器分析。
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公开(公告)号：US08283979B2
公开(公告)日：2012-10-09
申请号：US13009335
申请日：2011-01-19
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
CPC分类号： H03F3/2173 , H01L21/823892 , H01L27/0629 , H01L27/0921 , H03F1/523
摘要： An amplifier system for a power converter includes at least a first switching device and a second switching device formed in an integrated circuit in a substrate of a semiconductor. The first and second switching devices may be formed in a half bridge configuration and may be cooperatively switchable to generate an amplified output signal on an output node of the semiconductor. A resistor and a capacitor may be coupled in parallel between a power supply input node and a substrate node included in the semiconductor. The capacitor may be selectively charged to a de-biasing voltage during a switching cycle of the first and second switching devices to reverse bias a parasitic switching device appearing in the integrated circuit.
摘要翻译： 用于功率转换器的放大器系统至少包括形成在半导体衬底中的集成电路中的第一开关器件和第二开关器件。 第一和第二开关器件可以形成为半桥配置，并且可以协作地切换以在半导体的输出节点上产生放大的输出信号。 可以在电源输入节点和包括在半导体中的衬底节点之间并联耦合电阻器和电容器。 在第一和第二开关器件的开关周期期间，电容器可以选择性地充电到去偏置电压，以反向偏置集成电路中出现的寄生开关器件。
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公开(公告)号：US07969126B2
公开(公告)日：2011-06-28
申请号：US12573701
申请日：2009-10-05
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
CPC分类号： H03F3/2173 , H03F1/32 , H03K7/08 , H03K17/16 , H03K2217/0036
摘要： An amplifier having improved distortion characteristics is set forth. The amplifier includes an interleaved PWM amplifier that generates interleaved PWM pulses in response to a modified input signal and one or more carrier signals. The interleaved PWM pulses of the amplifier are used to drive a power stage, such as an opposed current power stage. The amplifier also includes an interleaved PWM generator that provides interleaved PWM pulses in response to the modified input signal and one or more further carrier signals. The carrier signals used by the PWM generator may differ in phase from the carrier signals used by the interleaved PWM amplifier to generate its interleaved PWM pulses. One or more feedback circuits are employed in the generation of the modified input signal. More particularly, the feedback circuit(s) generates the modified input signal based on an input signal that is to be amplified and the interleaved PWM pulses of the interleaved PWM generator.
摘要翻译： 阐述了具有改进的失真特性的放大器。 放大器包括交织的PWM放大器，其响应于修改的输入信号和一个或多个载波信号而产生交织的PWM脉冲。 放大器的交错PWM脉冲用于驱动功率级，例如相对的电流功率级。 放大器还包括交错PWM发生器，其响应于修改的输入信号和一个或多个其它载波信号提供交织的PWM脉冲。 PWM发生器使用的载波信号可能与交错的PWM放大器使用的载波信号的相位不同，以产生其交错的PWM脉冲。 在生成修改的输入信号时采用一个或多个反馈电路。 更具体地，反馈电路基于要被放大的输入信号和交织的PWM发生器的交错PWM脉冲产生修改的输入信号。
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公开(公告)号：US07557622B2
公开(公告)日：2009-07-07
申请号：US11542756
申请日：2006-10-03
申请人： Gerald R. Stanley
发明人： Gerald R. Stanley
IPC分类号： H03K4/06
CPC分类号： H03F3/217 , H03F2200/03 , H03F2200/351 , H03F2200/78 , H03K4/06 , H03K7/08
摘要： A triangle waveform generator is set forth that comprises a capacitive element, a regulator, and a control circuit. The regulator is configured to charge the capacitive element in responsive to a first control signal and to discharge the capacitive element in response to a second control signal. The control circuit is responsive to a reference waveform to generate the first and second control signals. In one example, the control circuit generates the first and second control signals in response to the amplitude, frequency, phase, and symmetry of the reference waveform.
摘要翻译： 提出了一种三角形波形发生器，其包括电容元件，调节器和控制电路。 调节器被配置为响应于第一控制信号对电容元件充电，并响应于第二控制信号对电容元件进行放电。 控制电路响应参考波形以产生第一和第二控制信号。 在一个示例中，控制电路响应于参考波形的幅度，频率，相位和对称性而产生第一和第二控制信号。
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