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    • 91. 发明授权
    • Multiplexed proportional-integral-derivative filter architecture (Mux-PID) for control-loop applications
    • 用于控制环应用的多路比例积分微分滤波器架构(Mux-PID)
    • US07979483B1
    • 2011-07-12
    • US11506189
    • 2006-08-16
    • Hee Wong
    • Hee Wong
    • G06F17/10
    • G05B11/42
    • A multiplexed digital proportional-integral-derivative filter receives error signal samples and operates in different states during sub-cycles of a single system cycle. A single multiplier and a single adder within the filter calculate at least portions of a proportional control signal, an integral control signal and a derivative control signal for one error signal sample during successive sub-cycles. The calculated control signal portions are aggregated to produce a filtered error signal for the respective error signal sample. The original resolution at lower cost, or increased resolution at the original cost, are achieved, as well as full programmability of loop gain with only negligible increase in loop latency.
    • 复用的数字比例积分微分滤波器接收误差信号采样并在单个系统周期的子周期期间以不同的状态操作。 滤波器内的单个乘法器和单个加法器在连续的子周期期间计算一个误差信号采样的比例控制信号,积分控制信号和微分控制信号的至少一部分。 所计算的控制信号部分被聚合以产生用于相应误差信号样本的滤波误差信号。 以较低的成本或原始成本提高分辨率的原始分辨率,以及环路增益的全面可编程性,环路延迟增加可忽略不计。
    • 95. 发明授权
    • Optimal control of charge-modulated gate drivers
    • 电荷调制栅极驱动器的最优控制
    • US07932754B1
    • 2011-04-26
    • US11506335
    • 2006-08-17
    • Michael Eugene BroachMichael D. Mulligan
    • Michael Eugene BroachMichael D. Mulligan
    • H03B1/00H03K3/00
    • H03K17/0822H02M1/08H02M3/1588H03K17/145H03K17/166H03K2217/0036Y02B70/1466
    • A system, apparatus and method is arranged to adaptively adjust drive signals for a gate controlled switch circuit such that the amount of gate swing automatically changes based on the load conditions. An adaptive gate charge modulation (GCM) technique can be utilized to dynamically adjust the drive signals so that a substantially constant voltage drop is perceived across to a gate controlled switch circuit. The voltage drop across the gate controlled switch circuit can be set to a reference level that is adjusted whenever a change in system conditions are detected. The gate charge can then be adaptively increased and decreased during operation, within maximum and minimum limits, to substantially match the voltage drop of the gate control switch circuit to the reference level.
    • 一种系统,装置和方法被设置为自适应地调整门控开关电路的驱动信号,使得门摆动量基于负载条件自动改变。 可以利用自适应栅极电荷调制(GCM)技术来动态地调整驱动信号,从而在栅极控制的开关电路两端感知到基本恒定的电压降。 门控制开关电路两端的电压降可以设置为每当检测到系统条件发生变化时调整的参考电平。 然后可以在最大和最小限度内的操作期间自适应地增加和减小栅极电荷,以使栅极控制开关电路的电压降达到基准电平。
    • 96. 发明授权
    • Stable high efficiency step-up voltage regulator with fast transient response and ultra low output voltage ripple
    • 稳定的高效率升压稳压器具有快速瞬态响应和超低输出电压纹波
    • US07932709B1
    • 2011-04-26
    • US12147474
    • 2008-06-26
    • Hok Sun Ling
    • Hok Sun Ling
    • G05F1/575
    • H02M3/156
    • A regulator circuit and a method of generating a stable, low-ripple output, step-up or step-down voltage are disclosed. A low ESR (Equivalent Series Resistance) output capacitor is employed to provide low output voltage ripple. A voltage, −VESRi, is generated using information based on an input voltage and the output voltage. −VESRi is coupled onto an intermediate reference voltage generated by an integrator based on the output voltage and a constant reference voltage, to form another voltage, VREFi. VREFi is coupled to an input of a feedback comparator, instead of a plain constant reference voltage, to modulate the duty cycle of a main switch. The output voltage is inputted as a feedback signal to another input of the feedback comparator. −VESRi, is generated using information based on an input voltage and the output voltage in such a way that output voltage is stable without sub-harmonic oscillation.
    • 公开了调节器电路和产生稳定的低纹波输出,升压或降压的方法。 使用低ESR(等效串联电阻)输出电容器来提供低输出电压纹波。 使用基于输入电压和输出电压的信息生成电压-VESRi。 -VESRi基于输出电压和恒定参考电压耦合到由积分器产生的中间参考电压,以形成另一电压VREFi。 VREFi耦合到反馈比较器的输入而不是普通参考电压,以调制主开关的占空比。 输出电压作为反馈信号输入到反馈比较器的另一输入端。 -VESRi使用基于输入电压和输出电压的信息,使得输出电压稳定而没有亚谐波振荡的方式产生。
    • 97. 发明申请
    • Apparatus and method for isolating an adaptive voltage scaling (AVS) loop in a powered system
    • 用于在动力系统中隔离自适应电压缩放(AVS)回路的装置和方法
    • US20110089914A1
    • 2011-04-21
    • US12587910
    • 2009-10-15
    • Mark Hartman
    • Mark Hartman
    • G05F1/10
    • G06F1/26
    • A method includes generating a regulated voltage for a powered component and modifying the regulated voltage with an adaptive voltage scaling (AVS) control loop. The method also includes further modifying the regulated voltage using at least one additional control loop. The AVS control loop is isolated from the at least one additional control loop. Modifying the regulated voltage with the AVS control loop could include storing an AVS digital value and converting the AVS digital value into an analog signal. Modifying the regulated voltage with the AVS control loop could also include modifying a control signal for a voltage regulator using the analog signal, where the voltage regulator generates the regulated voltage. Modifying the regulated voltage with the AVS control loop could further include buffering the analog signal and outputting the buffered analog signal as an isolated AVS signal over the AVS control loop.
    • 一种方法包括产生用于有源部件的调节电压并用自适应电压调节(AVS)控制环来修改调节电压。 该方法还包括使用至少一个附加控制回路来进一步修改调节电压。 AVS控制回路与至少一个附加控制回路隔离。 使用AVS控制环来修改调节电压可能包括存储AVS数字值并将AVS数字值转换为模拟信号。 使用AVS控制环修改调节电压还可以包括使用模拟信号修改电压调节器的控制信号,其中电压调节器产生调节电压。 使用AVS控制回路修改调节电压可进一步包括缓冲模拟信号,并通过AVS控制回路输出缓冲模拟信号作为隔离的AVS信号。
    • 98. 发明授权
    • Gain control coding within proportional-integral-derivative filters for control-loop applications
    • 用于控制环应用的比例积分微分滤波器内的增益控制编码
    • US07930334B1
    • 2011-04-19
    • US11731962
    • 2007-04-02
    • Hee Wong
    • Hee Wong
    • G06F17/10
    • G05B11/42
    • Proportional, integral and derivative error gains within a proportional-integral-derivative filter are selected based on a magnitude of the error value and with successively higher gain values corresponding to larger ranges of error values. Coding of the error gains is selected based on one or more of: large code-dynamic-range to achieve good transient and quiescent responses; small code-step ratio to achieve smooth transitions between consecutive steps; large gain control range to satisfy the differing gain coverage requirements of the three proportional, integral and derivative error; positive and negative code symmetry with small step increment about zero; reservation of code space for dead band elimination; allocation of code space to prevent overflow/underflow during multiplying and bit-shifting; and minimum cost and power.
    • 基于比例积分微分滤波器中的比例积分和微分误差增益是基于误差值的大小以及对应于较大范围误差值的连续较高增益值来选择的。 基于以下一个或多个选择误差增益的编码:大代码 - 动态范围以实现良好的瞬态和静态响应; 小代码步长比实现连续步骤之间的平滑过渡; 大增益控制范围满足三种比例,积分和微分误差的不同增益覆盖要求; 正,负码对称,小步增量约零; 预留死区消除代码空间; 分配代码空间,以防止在乘法和位移期间的溢出/下溢; 最低成本和最低功耗。