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公开(公告)号：US20130300392A1
公开(公告)日：2013-11-14
申请号：US13536862
申请日：2012-06-28
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M3/1588 , H02M2001/0025 , H02M2001/0032 , H02M2003/1566 , Y02B70/1466 , Y02B70/16
摘要： A regulator system with dynamic droop including a regulator control network which is adapted to control regulation of an output voltage to a reference level, a DC droop network which provides a droop signal to modify the reference level based on output load according to a predetermined DC load line, and a dynamic droop network which adjusts the droop signal to delay recovery to the predetermined DC load line within an AC load line tolerance in response to a load transient. A transient reduction network may be included to reduce transient overshoot for load insertion or release depending upon duty cycle type. The dynamic droop network adjusts the droop signal to optimize utilization of an AC delay parameter while transitioning between an AC offset voltage allowance and the predetermined DC load line.
摘要翻译： 具有动态下降的调节器系统，其包括调节器控制网络，其适于将输出电压调节到参考电平; DC下降网络，其根据预定的DC负载输出负载来提供下垂信号以修改参考电平 线路和动态下降网络，其调节下降信号以响应于负载瞬变在AC负载线路公差内延迟恢复到预定DC负载线路。 可以包括瞬态还原网络以减少负载插入或释放的瞬态过冲，这取决于占空比类型。 动态下垂网络调整下垂信号以优化AC延迟参数的利用率，同时在AC偏移电压容限和预定DC负载线之间转换。
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2.发明申请SYSTEM AND METHOD OF PREDICTIVE CURRENT FEEDBACK FOR SWITCHED MODE REGULATORS 有权用于开关模式调节器的预测电流反馈系统和方法公开(公告)号：US20130300388A1
公开(公告)日：2013-11-14
申请号：US13531751
申请日：2012-06-25
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0009 , H02M2001/0019
摘要： A predictive current feedback system for a switched mode regulator including a sample and hold network for sampling voltage across a lower switch of the regulator and for providing a hold signal indicative thereof, and a predictive current feedback network which adds an offset adjustment to the hold signal based on a duration of a pulse width of a pulse control signal developed by the regulator. Sampling may be done while the lower switch is on for providing a hold value indicative of inductor current while the pulse control signal is low. The offset adjustment may be added to the hold signal in response to a transient event when the pulse signal is high. The offset may be incremental values after each of incremental time periods after a nominal time period, or may be a time-varying value. Adjustment may be made while the pulse signal is low as well.
摘要翻译： 一种用于开关模式调节器的预测电流反馈系统，包括用于对调节器的下开关进行采样电压并用于提供指示其的保持信号的采样和保持网络，以及预测电流反馈网络，其将偏移调整添加到保持信号 基于由调节器开发的脉冲控制信号的脉冲宽度的持续时间。 当下部开关打开时，可以进行采样，以提供指示电感器电流的保持值，同时脉冲控制信号为低电平。 当脉冲信号为高时，偏移调整可以响应于瞬态事件而被添加到保持信号。 偏移量可以是在标称时间段之后的每个增量时间段之后的增量值，或者可以是时变值。 脉冲信号也可以进行调整。
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3.发明申请SYSTEM AND METHOD OF BALANCED SLOPE COMPENSATION FOR SWITCH MODE REGULATORS 有权用于开关模式调节器的平衡斜率补偿系统和方法公开(公告)号：US20130293212A1
公开(公告)日：2013-11-07
申请号：US13536831
申请日：2012-06-28
IPC分类号： G05F1/46
CPC分类号： H02M3/157 , H02M2001/0025
摘要： A modulator with balanced slope compensation including a control network, a slope compensation network, an offset network and an adjust network. The control network receives a feedback signal indicative of an output voltage and provides a loop control signal. The slope compensation network develops a slope compensation signal. The offset network determines a DC offset of the slope compensation signal. The adjust network combines the DC offset, the slope compensation signal and the loop control signal to provide a balanced slope compensated control signal. The DC offset may be determined as a peak of the slope compensation signal. The slope compensation signal may be developed based on the output voltage and a pulse control signal, in which the pulse control signal is developed using the balanced slope compensated control signal.
摘要翻译： 具有平衡斜率补偿的调制器，包括控制网络，斜率补偿网络，偏移网络和调整网络。 控制网络接收表示输出电压的反馈信号并提供回路控制信号。 坡度补偿网络产生斜率补偿信号。 偏移网络确定斜率补偿信号的直流偏移。 调整网络组合了直流偏移，斜率补偿信号和回路控制信号，以提供平衡的斜率补偿控制信号。 DC偏移可以被确定为斜率补偿信号的峰值。 可以基于输出电压和脉冲控制信号来开发斜率补偿信号，其中使用平衡斜率补偿控制信号显示脉冲控制信号。
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4.发明申请公开(公告)号：US20140002047A1
公开(公告)日：2014-01-02
申请号：US13536786
申请日：2012-06-28
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0025 , H02M2001/0032 , H02M2003/1566 , Y02B70/16
摘要： A dynamic voltage response network for a switching regulator with droop control providing a droop control signal includes a voltage identification setting network, a pass and hold system, and a reset network. The voltage identification setting network initiates a hold condition and adjusts an output voltage reference in response to a change in a voltage identification input. The pass and hold system passes the droop control signal during a pass condition and holds the droop control signal during the hold condition. The reset network resets the pass and hold system to the pass condition in response to a reset signal. The reset signal may be provided in response to a variety of conditions, such as load transients, proximity between the developed droop control signal and the held droop control signal, timeout after the output voltage reference is adjusted, among other reset conditions.
摘要翻译： 具有提供下垂控制信号的下垂控制的开关调节器的动态电压响应网络包括电压识别设置网络，通过和保持系统以及复位网络。 电压识别设置网络响应于电压识别输入的变化而启动保持状态并调整输出电压基准。 通过和保持系统在通过条件期间通过下垂控制信号，并且在保持状态期间保持下垂控制信号。 复位网络响应于复位信号将通过和保持系统复位到通过条件。 复位信号可以响应于诸如负载瞬变，显影下垂控制信号和保持的下垂控制信号之间的接近度，在调整输出参考电压之后的超时以及其它复位条件之间的各种条件来提供。
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5.发明申请SYSTEM AND METHOD OF MAINTAINING GAIN LINEARITY OF VARIABLE FREQUENCY MODULATOR 有权维持变频调制器的增益线性的系统和方法公开(公告)号：US20130127557A1
公开(公告)日：2013-05-23
申请号：US13537708
申请日：2012-06-29
IPC分类号： H03K7/06
CPC分类号： H03K7/08 , H02M3/156 , H02M3/1563 , H03K3/0231 , H03K7/06 , H03K7/10
摘要： A variable frequency modulator including a compensation network, first and second pulse control networks and a linearity controller. The compensation network is configured to provide a compensation signal indicative of an output load condition. The first pulse control network is configured to initiate pulses on a pulse control signal and to adjust operating frequency based on changes of the compensation signal. The second pulse control network is configured to terminate the pulses on the pulse control signal based on a predetermined timing parameter. The linearity controller is configured to adjust timing of terminating the pulses based on a predetermined steady state operating frequency and an actual operating frequency to maintain modulator gain at a constant level.
摘要翻译： 一种包括补偿网络，第一和第二脉冲控制网络和线性控制器的可变频率调制器。 补偿网络被配置为提供表示输出负载条件的补偿信号。 第一脉冲控制网络被配置为在脉冲控制信号上启动脉冲，并且基于补偿信号的变化来调整工作频率。 第二脉冲控制网络被配置为基于预定的定时参数终止脉冲控制信号上的脉冲。 线性控制器被配置为基于预定的稳态工作频率和实际工作频率来调整终止脉冲的定时，以将调制器增益维持在恒定水平。
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6.发明申请SYSTEM AND METHOD FOR DETECTION AND COMPENSATION OF AGGRESSIVE OUTPUT FILTERS FOR SWITCHED MODE POWER SUPPLIES 有权用于切换模式电源的缓冲输出滤波器的检测和补偿的系统和方法公开(公告)号：US20110260703A1
公开(公告)日：2011-10-27
申请号：US12894395
申请日：2010-09-30
IPC分类号： G05F1/44
CPC分类号： H02M3/1563
摘要： A controller for a switched mode power supply converting an input voltage to a regulated output voltage according to one embodiment includes a control network and a detection network. The control network develops a pulse width control signal for regulating a level of the output voltage. The detection network detects a phase lag of the output voltage and adjusts operation of the control network based on the phase lag. The phase lag may be determined from any parameter incorporating phase shift, such as the output voltage or the compensation voltage. Various alternative schemes are disclosed for adjusting the control loop, including, but not limited to, adding slope compensation, adjusting window resistance or window current, adding adjustment current to adjust ripple voltage, adjusting ripple transconductance, and adjusting ripple capacitance. Digital and analog compensation adjustment schemes are disclosed.
摘要翻译： 根据一个实施例的用于将输入电压转换为稳定输出电压的开关模式电源的控制器包括控制网络和检测网络。 控制网络开发用于调节输出电压电平的脉冲宽度控制信号。 检测网络检测输出电压的相位滞后，并根据相位滞后调整控制网络的运行。 可以从包含相移的任何参数（例如输出电压或补偿电压）确定相位滞后。 公开了用于调整控制回路的各种替代方案，包括但不限于：添加斜率补偿，调整窗口电阻或窗口电流，增加调节电流以调整纹波电压，调整纹波跨导和调整纹波电容。 公开了数字和模拟补偿调整方案。
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7.发明申请SWITCHING REGULATOR WITH BALANCED CONTROL CONFIGURATION WITH FILTERING AND REFERENCING TO ELIMINATE COMPENSATION 有权具有平衡控制配置的开关调节器，具有滤波和参考消除补偿公开(公告)号：US20120126773A1
公开(公告)日：2012-05-24
申请号：US13362015
申请日：2012-01-31
IPC分类号： G05F1/46
摘要： A switching regulator and controller and an electronic device using same are disclosed in which the controller includes a sense circuit, an error amplifier circuit, a filter and reference circuit, and a comparator circuit. The switching regulator includes a pulse switch circuit coupled to an output inductor for developing an output voltage. The sense circuit provides a sense signal indicative of current through the output inductor. The error amplifier circuit develops an error signal indicative of error of the output voltage. The filter and reference circuit high pass filters the sense signal to provide a filtered sense signal and which balances the filtered sense signal and the error signal at a common DC level. The comparator circuit develops a pulse control signal using the error signal and the filtered sense signal, where the pulse control signal is for controlling switching of the pulse switch circuit.
摘要翻译： 公开了一种开关调节器和控制器以及使用它的电子设备，其中控制器包括感测电路，误差放大器电路，滤波器和参考电路以及比较器电路。 开关稳压器包括耦合到输出电感器以产生输出电压的脉冲开关电路。 感测电路提供指示通过输出电感器的电流的感测信号。 误差放大器电路产生表示输出电压误差的误差信号。 滤波器和参考电路高通滤波感测信号以提供滤波的感测信号，并且将滤波的感测信号和误差信号平衡在公共DC电平。 比较器电路使用误差信号和滤波的感测信号产生脉冲控制信号，其中脉冲控制信号用于控制脉冲开关电路的切换。
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8.发明申请SYSTEM AND METHOD FOR DETERMINING OUTPUT VOLTAGE LEVEL INFORMATION FROM PHASE VOLTAGE FOR SWITCHED MODE REGULATOR CONTROLLERS 有权用于确定开关模式调节器控制器的相电压输出电压信号的系统和方法公开(公告)号：US20100270995A1
公开(公告)日：2010-10-28
申请号：US12700103
申请日：2010-02-04
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0022
摘要： A controller integrated circuit for a switched mode regulator which converts an input voltage to an output voltage. The controller includes a phase pin, a modulation circuit and a filter. The modulation circuit is configured to regulate the output voltage using the input voltage and output voltage level information. The filter has an input coupled to the phase pin and an output providing the output voltage level information which approximates the output voltage based on phase pin voltage. Various filters are contemplated, including passive and active low pass filters and the like. A regulator using such a controller is disclosed. A method of determining a voltage level of an output voltage includes receiving a phase voltage from a phase pin coupled to the phase node, and filtering the phase voltage to provide an output sense voltage having a voltage level approximating the voltage level of the output voltage.
摘要翻译： 一种用于将输入电压转换为输出电压的开关模式调节器的控制器集成电路。 控制器包括相位引脚，调制电路和滤波器。 调制电路被配置为使用输入电压和输出电压电平信息来调节输出电压。 滤波器具有耦合到相位引脚的输入端和提供基于相位引脚电压近似输出电压的输出电压电平信息的输出。 涵盖了各种滤波器，包括无源和有源低通滤波器等。 公开了一种使用这种控制器的调节器。 确定输出电压的电压电平的方法包括从耦合到相位节点的相位引脚接收相电压，以及对相电压进行滤波以提供具有接近输出电压的电压电平的电压电平的输出感测电压。
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9.发明申请SYSTEM AND METHOD FOR IMPROVING REGULATION ACCURACY OF SWITCH MODE REGULATOR DURING DCM 有权用于改善DCM期间开关模式调节器的调节精度的系统和方法公开(公告)号：US20120212204A1
公开(公告)日：2012-08-23
申请号：US13098880
申请日：2011-05-02
IPC分类号： G05F1/618
CPC分类号： H02M3/156 , H02M2001/0003 , H02M2001/0032 , Y02B70/16
摘要： A controller for a switch mode regulator with discontinuous conduction mode (DCM) correction which includes a correction network and a modulator. The correction network detects a low load condition indicative of regulation error during DCM and asserts an adjust value indicative thereof. The modulator receives the adjust value and adjusts operation accordingly to improve regulation during DCM. The correction network receives or determines a regulation metric, such as periods between successive pulses of a pulse control signal, or a current sense signal indicative of load current, and compares the regulation metric with one or more thresholds for determining the level of adjustment. Adjustment may be made using one or more methods, such as adjusting pulse on-time, adjusting pulse off-time, adjusting frequency of operation, etc.
摘要翻译： 一种用于具有不连续导通模式（DCM）校正的开关模式调节器的控制器，其包括校正网络和调制器。 校正网络检测在DCM期间指示调节误差的低负载状况，并且确定其指示的调整值。 调制器接收调整值并相应调整操作，以改善DCM中的调节。 校正网络接收或确定诸如脉冲控制信号的连续脉冲之间的周期或指示负载电流的电流感测信号的调节度量，并且将调节度量与用于确定调整电平的一个或多个阈值进行比较。 可以使用一种或多种方法进行调整，例如调节脉冲接通时间，调整脉冲关闭时间，调整操作频率等。
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公开(公告)号：US20110234193A1
公开(公告)日：2011-09-29
申请号：US12878529
申请日：2010-09-09
IPC分类号： G05F3/02
CPC分类号： G05F1/59 , H02M3/1584 , H02M2003/1586
摘要： A phase current sharing network for a current mode multiphase switching regulator. The multiphase switching regulator includes switching networks for developing phase currents of switching phase networks controlled by pulse control signals for converting an input voltage to an output voltage. The regulator develops the pulse control signals based on current control values and at least one trigger value. The phase current sharing network includes conversion networks and a phase current combining network. Each conversion network provides a phase current value based on a corresponding phase current, such as by directly or indirectly measuring real current or by synthetically developing the phase current value. The phase current combining network develops an average phase current value based on the phase current values, and subtracts the average phase current value from each phase current value to provide the current control values used to control the switching networks.
摘要翻译： 用于电流模式多相开关稳压器的相电流共享网络。 多相开关调节器包括用于开发用于将输入电压转换为输出电压的脉冲控制信号控制的开关相位网络的相电流的开关网络。 调节器根据电流控制值和至少一个触发值开发脉冲控制信号。 相电流共享网络包括转换网络和相电流组合网络。 每个转换网络基于对应的相电流提供相电流值，例如通过直接或间接测量实际电流或通过合成开发相电流值。 相电流组合网络基于相电流值产生平均相电流值，并从每相电流值中减去平均相电流值，以提供用于控制开关网络的电流控制值。
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