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1. 发明授权

US09065339B2 Methods and apparatus for voltage regulation with dynamic transient optimization 有权
标题翻译：用动态瞬态优化调节电压的方法和装置
公开(公告)号：US09065339B2
公开(公告)日：2015-06-23
申请号：US13046603
申请日：2011-03-11
申请人： Richard Pierson , Jinghong Guo , Tim M. Ng , Benjamim Tang , Amir Babazadeh , Scott Southwell
发明人： Richard Pierson , Jinghong Guo , Tim M. Ng , Benjamim Tang , Amir Babazadeh , Scott Southwell
IPC分类号： H02M1/32 , G06F1/32 , H02M1/00
CPC分类号： H02M1/32 , G06F1/3234 , G06F1/3296 , H02M2001/0012 , H02M2001/0016
摘要： Methods and apparatus of dynamic transient optimization in a voltage regulator according to various aspects of the present invention may comprise a transition detector configured to compare an output voltage error to an amplitude threshold. The voltage regulator may further comprise a frequency detector configured to measure the frequency of the amplitude threshold being exceeded and to compare the frequency to a frequency threshold and a response circuit configured to activate a response according to a comparison between the frequency threshold and the frequency of the amplitude threshold being exceeded.
摘要翻译：根据本发明的各个方面的电压调节器中的动态瞬态优化的方法和装置可以包括被配置为将输出电压误差与振幅阈值进行比较的转换检测器。电压调节器还可以包括频率检测器，其被配置为测量超过的幅度阈值的频率，并且将频率与频率阈值进行比较，以及响应电路，被配置为根据频率阈值和频率阈值之间的比较激活响应超过振幅阈值。

2. 发明授权

US5856760A Overdrive protection clamp scheme for feedback amplifiers 失效
标题翻译：反馈放大器的过驱保护钳位方案
公开(公告)号：US5856760A
公开(公告)日：1999-01-05
申请号：US745070
申请日：1996-11-07
申请人： Khanh Lam , Lloyd F. Linder , Carrie C. Lo , Tim M. Ng , Kelvin T. Tran
发明人： Khanh Lam , Lloyd F. Linder , Carrie C. Lo , Tim M. Ng , Kelvin T. Tran
IPC分类号： H03F1/52 , H03F3/30
CPC分类号： H03F1/52 , H03F3/3076 , H03F2200/372
摘要： A low-noise, low-distortion clamping scheme includes a bootstrapped voltage clamp and an R.sub.gm current clamp that provide superior overdrive protection when used together in a Class-AB feedback amplifier. The bootstrapped voltage clamp includes a transistor that is connected to a circuit node to be clamped. The transistor's base is bootstrapped to the node to maintain a constant V.sub.be when not clamping, to reduce the adverse effects of the junction capacitance C.sub.je which would normally vary with the node voltage and distort the signal at the node. Two such clamps provide positive and negative voltage limiting. The R.sub.gm current clamp is used in the input stage of a Class-AB feedback amplifier to limit the current through the resistor R.sub.gm that interconnects the current inputs of two transconductance amplifiers whenever the voltage drop across R.sub.gm increases to an unacceptable level. The clamp uses a dependent current source whose output current increases with the magnitude of the current flowing through R.sub.gm and prevents that current from exceeding a predetermined limit. When not clamping, the clamp has a very small effect on the amplifier's input stage. Two R.sub.gm current clamps are typically used to limit current flowing in either direction through R.sub.gm.
摘要翻译：低噪声，低失真钳位方案包括一个自举电压钳位电路和一个Rgm电流钳位电路，可在AB类反馈放大器中一起使用时提供卓越的过驱动保护。自举电压钳包括连接到要钳位的电路节点的晶体管。晶体管的基极被引导到节点，以在不夹持时保持恒定的Vbe，以减少结电容Cje的不利影响，其通常随着节点电压而变化并且使节点处的信号失真。两个这样的夹具提供正和负电压限制。 Rgm电流钳位用于AB类反馈放大器的输入级，以限制通过电阻Rgm的电流，每当跨过Rgm的电压降到不可接受的电平时，互连两个跨导放大器的电流输入。钳位使用依赖电流源，其输出电流随流过Rgm的电流的大小而增加，并防止该电流超过预定极限。当不夹紧时，夹具对放大器的输入级具有非常小的影响。通常使用两个Rgm电流钳来限制在任一方向流过Rgm的电流。

3. 发明授权

US08972216B2 Methods and apparatus for calibration of power converters 有权
标题翻译：电力转换器校准方法和装置
公开(公告)号：US08972216B2
公开(公告)日：2015-03-03
申请号：US13042914
申请日：2011-03-08
申请人： Benjamim Tang , Chun-Yen Lin , Rohan Samsi , Jinghong Guo , Tim M. Ng , Richard Pierson
发明人： Benjamim Tang , Chun-Yen Lin , Rohan Samsi , Jinghong Guo , Tim M. Ng , Richard Pierson
IPC分类号： G05F1/10 , H02M3/156 , H01L27/02 , B23K26/00 , G01R31/40 , H02M3/158 , H02M1/00
CPC分类号： H02M3/156 , B23K26/351 , G01R19/00 , G01R31/40 , G01R35/005 , H01L27/0211 , H02M3/1584 , H02M2001/0009
摘要： Methods and apparatus for a power regulator according to various aspects of the present invention may comprise a sensor adapted to generate a measurement of a voltage or a current. A memory may store a correction parameter that corresponds to the measurement, and a correction system may be adapted to adjust the measurement according to the correction parameter.
摘要翻译：根据本发明的各个方面的用于功率调节器的方法和装置可以包括适于产生电压或电流的测量的传感器。存储器可以存储对应于测量的校正参数，并且校正系统可以适于根据校正参数来调整测量。

4. 发明授权

US08207720B2 Methods and apparatus for power supply load dump compensation 有权
标题翻译：电源负载倾卸补偿方法和装置
公开(公告)号：US08207720B2
公开(公告)日：2012-06-26
申请号：US12505838
申请日：2009-07-20
申请人： Benjamin Tang , Tim M. Ng
发明人： Benjamin Tang , Tim M. Ng
IPC分类号： G05F1/59
CPC分类号： H02M3/156 , H02M2001/0019 , H03K7/08 , Y10S323/901
摘要： Methods and apparatus for power supply load dump compensation according to various aspects of the present invention may operate in conjunction with a power stage system, such as a power stage system comprising a bootstrapped driver circuit and a power stage responsive to the driver circuit. The power stage system may further include a load dump compensation circuit connected to the driver circuit, wherein the load dump compensation circuit is configured to remove a bias current generated by the bootstrapped driver circuit. Various aspects of the present invention may be implemented in conjunction with any appropriate power supply, such as a switching regulator, for example a buck converter.
摘要翻译：根据本发明的各个方面的用于电源负载突降补偿的方法和装置可以与功率级系统结合操作，功率级系统例如包括自举驱动电路和响应于驱动器电路的功率级的功率级系统。功率级系统还可以包括连接到驱动器电路的负载突降补偿电路，其中负载突降补偿电路被配置为去除由自举驱动电路产生的偏置电流。本发明的各个方面可以结合任何适当的电源，例如开关调节器，例如降压转换器来实现。

5. 发明授权

US5128674A Two quadrants high speed multiplying DAC 失效
标题翻译：两个象限高速倍增DAC
公开(公告)号：US5128674A
公开(公告)日：1992-07-07
申请号：US676635
申请日：1991-03-28
申请人： Kam W. Kong , John M. Burns , Tim M. Ng
发明人： Kam W. Kong , John M. Burns , Tim M. Ng
IPC分类号： H03M1/74
CPC分类号： H03M1/745
摘要： A multiplying digital-to-analog converter for multiplying a bipolar input current by a digital word A having N bits a.sub.i including a current adder for adding a constant current to the bipolar input current to produce a unipolar current, a first current mirror responsive to the unipolar current for providing N binary weighted versions of the unipolar current, a second current mirror for providing binary weighted versions of the constant current, N current selection circuits respectively controlled the N bits a.sub.i for providing an output current comprising (a) the correspondingly weighted version of said unipolar current if the associated control bit is in a first state or (b) the correspondingly weighted version of the constant current if the associated control bit is in a second state, and a shifting circuit for summing the outputs of said N current selection means and for shifting the sum current to produce a bipolar output current representative of product of (a) the input bipolar current and (b) the digital word A.
摘要翻译：一种乘法数模转换器，用于将双极性输入电流乘以具有N位ai的数字字A，其包括用于将恒定电流加到双极性输入电流以产生单极电流的电流加法器，第一电流镜响应于用于提供单极电流的N个二进制加权版本的单极电流，用于提供恒定电流N个电流选择电路的二进制加权版本的第二电流镜分别控制N个比特ai以提供输出电流，其包括（a）相应的加权版本如果所述相关联的控制位处于第一状态，或（b）相关联的控制位处于第二状态的恒定电流的对应加权版本，以及用于将所述N个当前选择的输出相加的移位电路，意味着和移动总和电流以产生代表（a）输入双极光的乘积的双极输出电流 t和（b）数字词A.

6. 发明申请

US20110221405A1 METHODS AND APPARATUS FOR CALIBRATION OF POWER CONVERTERS 有权
标题翻译：功率转换器校准的方法和装置
公开(公告)号：US20110221405A1
公开(公告)日：2011-09-15
申请号：US13042914
申请日：2011-03-08
申请人： Benjamim Tang , Chun-Yen Lin , Rohan Samsi , Jinghong Guo , Tim M. Ng , Richard Pierson
发明人： Benjamim Tang , Chun-Yen Lin , Rohan Samsi , Jinghong Guo , Tim M. Ng , Richard Pierson
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , B23K26/351 , G01R19/00 , G01R31/40 , G01R35/005 , H01L27/0211 , H02M3/1584 , H02M2001/0009
摘要： Methods and apparatus for a power regulator according to various aspects of the present invention may comprise a sensor adapted to generate a measurement of a voltage or a current. A memory may store a correction parameter that corresponds to the measurement, and a correction system may be adapted to adjust the measurement according to the correction parameter.
摘要翻译：根据本发明的各个方面的用于功率调节器的方法和装置可以包括适于产生电压或电流的测量的传感器。存储器可以存储对应于测量的校正参数，并且校正系统可以适于根据校正参数来调整测量。

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