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31. 发明申请

WO2009015205A1 DEAD-TIME TRANSITION ADJUSTMENTS FOR SYNCHRONOUS POWER CONVERTERS 审中-公开
标题翻译：同步电源转换器的死时间过渡调整
公开(公告)号：WO2009015205A1
公开(公告)日：2009-01-29
申请号：PCT/US2008/070887
申请日：2008-07-23
申请人： INTERSIL AMERICAS INC. , DEQUINA, Noel B.
发明人： DEQUINA, Noel B.
IPC分类号： H02M1/38 , H02M3/158 , H03K17/00
CPC分类号： H02M3/158 , H02M1/38 , H03K17/165 , H03K17/6871 , H03K2217/0036
摘要： A method of operating a synchronous power converter detects when at least one of an upper power switch and a lower power switch of the converter transition to an off state during a dead-time transition interval between the upper power switch and the lower power switch. The method generates a first comparison signal, indicative of a voltage level at a phase node of the converter, in a dead-time adjustment circuit coupled to the converter. The method further detects a body diode conduction level of at least one of the upper and lower power switches in the off state using at least a second comparison signal generated in the dead-time adjustment circuit and adjusts the dead-time transition interval between the upper power switch and the lower power switch using at least one current source from the dead-time adjustment circuit to reduce the dead-time transition interval to a desired dead-time interval.
摘要翻译：操作同步功率转换器的方法检测在上电源开关和下电源开关之间的死区时间过渡间隔期间，转换器的上电源开关和下电源开关中的至少一个转换到断开状态。该方法在耦合到转换器的死区时间调整电路中产生指示转换器的相位节点处的电压电平的第一比较信号。该方法还使用在死区时间调整电路中产生的至少第二比较信号，检测处于断开状态的上下功率开关中的至少一个的体二极管导通电平，并且调节上限和下限功率开关之间的死区时间过渡间隔电源开关和下电源开关，其使用来自死区时间调整电路的至少一个电流源，以将死区时间转换间隔减少到期望的死区间隔。

32. 发明申请

WO2008140861A1 RF - COUPLED DIGITAL ISOLATOR 审中-公开
标题翻译： RF - 耦合数字隔离器
公开(公告)号：WO2008140861A1
公开(公告)日：2008-11-20
申请号：PCT/US2008/057909
申请日：2008-03-21
申请人： INTERSIL AMERICAS INC. , HARVEY, Barry
发明人： HARVEY, Barry
IPC分类号： H01L23/495 , H01L23/64 , H04B5/00
CPC分类号： H01L23/495 , H01L23/49575 , H01L23/645 , H01L23/66 , H01L24/48 , H01L24/49 , H01L2224/05554 , H01L2224/48195 , H01L2224/48227 , H01L2224/48237 , H01L2224/4911 , H01L2224/49171 , H01L2224/49175 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01015 , H01L2924/01019 , H01L2924/0102 , H01L2924/01024 , H01L2924/01029 , H01L2924/01033 , H01L2924/01041 , H01L2924/01074 , H01L2924/01078 , H01L2924/01082 , H01L2924/014 , H01L2924/1204 , H01L2924/14 , H01L2924/181 , H01L2924/19041 , H01L2924/19042 , H01L2924/19107 , H01L2924/30105 , H01L2924/30107 , H01L2924/3025 , H01L2924/00 , H01L2224/45099 , H01L2224/05599
摘要： An RF-coupled digital isolator includes a first leadframe portion and a second leadframe portion, electrically isolated from one another. The first leadframe portion includes a first main body and a first finger. The second leadframe portion includes a second main body and a second finger. The first main body is connected to a first ground, and the second main body is connected to a second ground that is electrically isolated from the first ground. The first finger and the second finger are electrically isolated from one another, e.g., by a plastic molding compound that forms a package for the digital isolator. The first finger acts as a primary of a transformer, and the second finger acts as a secondary of a transformer, when an RF signal drives to the first finger. The first finger and the second finger can be substantially parallel or anti-parallel to one another.
摘要翻译： RF耦合数字隔离器包括彼此电隔离的第一引线框架部分和第二引线框架部分。第一引线框部分包括第一主体和第一手指。第二引线框架部分包括第二主体和第二手指。第一主体连接到第一接地，第二主体连接到与第一接地电隔离的第二接地。第一指状物和第二指状物彼此电隔离，例如通过形成用于数字隔离器的包装的塑料模制化合物。当RF信号驱动到第一个手指时，第一个手指充当变压器的主要部分，第二个手指充当变压器的次级。第一手指和第二手指可以基本上彼此平行或反平行。

33. 发明申请

WO2005052772A2 TRACKING SOFT START CIRCUIT 审中-公开
标题翻译：跟踪软启动电路
公开(公告)号：WO2005052772A2
公开(公告)日：2005-06-09
申请号：PCT/US2004/033576
申请日：2004-10-12
申请人： INTERSIL AMERICAS INC. , SHEARON, William Brandes , GIORDANO, Raymond Louis , CAN, Sumer
发明人： SHEARON, William Brandes , GIORDANO, Raymond Louis , CAN, Sumer
IPC分类号： G06F1/26
CPC分类号： G06F1/26 , H02M1/36 , Y10S323/901
摘要： A tracking soft start circuit architecture contains a plurality of soft start circuits for generating a plurality of soft start voltages during startup for application to associated power supply terminals of a power supply system. The soft start circuits are interconnected in such a manner that prevents any soft start circuit from generating a soft start voltage waveform until all of the controlled power output devices have been brought to the same prescribed state of operation, that is, all power FET gates are precharged and their source voltages match each other.
摘要翻译：跟踪软启动电路架构包含多个软启动电路，用于在启动期间产生多个软启动电压以应用于电源系统的相关电源端子。软启动电路以这样的方式互连，即，在所有受控功率输出设备已经达到相同的规定操作状态之前，防止任何软启动电路产生软启动电压波形，即所有功率FET门都是预充电和它们的电源电压相互匹配。

34. 发明申请

WO2005048235A1 MULTIPLE CHANNEL PROGRAMMABLE GAMMA CORRECTION VOLTAGE GENERATOR 审中-公开
标题翻译：多通道可编程电位器校正电压发生器
公开(公告)号：WO2005048235A1
公开(公告)日：2005-05-26
申请号：PCT/US2004/029878
申请日：2004-09-10
申请人： INTERSIL AMERICAS INC.
发明人： YOUNGBLOOD, Douglas L. , SMITH, Steven R.
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G2310/027 , G09G2320/0247 , G09G2320/0276 , G09G2320/0606 , G09G2320/0673
摘要： A multiple channel programmable gamma correction voltage generator (200) including a resistor ladder (201), buffers (209), select logic SL1 - SLM, and a programmable non-volatile memory device (207). The memory provides select values indicative of one or more stored gamma correction values. The resistor ladder includes adjustable tap resistors distributed along the resistor ladder. The adjustable tap resistors provide multiple tap voltages distributed according to the gamma correction value. The buffers receive the tap voltages and provide gamma correction voltages. The select logic selects tap points of the adjustable tap resistors to select the tap voltages based on the select values stored in the memory. Additional resistors and switch logic may be included to enable re-positioning of the adjustable tap resistor within the resistor ladder. Latches (303) and address control may be provided on the memory to enable programming and selection of multiple gamma correction values.
摘要翻译：包括电阻梯（201），缓冲器（209），选择逻辑SL1-SLM和可编程非易失性存储器件（207）的多通道可编程伽玛校正电压发生器（200）。存储器提供指示一个或多个存储的伽马校正值的选择值。电阻梯包括沿电阻梯分布的可调节分接电阻器。可调节抽头电阻提供根据伽马校正值分布的多个抽头电压。缓冲器接收抽头电压并提供伽马校正电压。选择逻辑选择可调节抽头电阻的抽头，根据存储在存储器中的选择值来选择抽头电压。可以包括附加的电阻和开关逻辑，以使可调节抽头电阻器能够重新定位在电阻梯内。可以在存储器上提供锁存器（303）和地址控制以使得能够编程和选择多个伽马校正值。

35. 发明申请

WO2005043731A3 STARTUP CIRCUIT FOR A DC-DC CONVERTER 审中-公开
公开(公告)号：WO2005043731A3
公开(公告)日：2005-05-12
申请号：PCT/US2004/035647
申请日：2004-10-27
申请人： INTERSIL AMERICAS INC.
发明人： LEITH, James W. , MEHAS, Gustavo J.
IPC分类号： H02M1/00
摘要： A startup circuit 109 for a power converter 100 including an amplifier circuit 205, a comparator 225, and startup logic 227. The power converter includes an error amplifier 111 that compares an output sense signal with a startup reference signal and that provides a compensation signal. The amplifier circuit charges the startup reference signal to a predetermined reference level based on a second reference signal in response to a start signal. The comparator determines when the compensation signal reaches a predetermined ramp level and asserts a startup complete signal indicative thereof. The startup logic provides the start signal and provides an output enable signal in response to the startup complete signal. The output enable signal enables output switching to initiate normal regulation operation of the output voltage. In one embodiment, the predetermined ramp level is approximately the center voltage of a sawtooth regulation waveform used for PWM modulation.

36. 发明申请

WO2004074991A2 LOW POWER, AREA-EFFICIENT CIRCUIT TO PROVIDE CLOCK SYNCHRONIZATION 审中-公开
标题翻译：低功耗，提供时钟同步的区域电路
公开(公告)号：WO2004074991A2
公开(公告)日：2004-09-02
申请号：PCT/US2004/003965
申请日：2004-02-11
申请人： INTERSIL AMERICAS INC. , DOYLE, Brent R.
发明人： DOYLE, Brent R.
IPC分类号： G06F
CPC分类号： H03K5/1534 , G06F1/08 , H03K5/19
摘要： A clock signal generator, which requires no clock selection pin includes a multiplexer to which external and internal clocks are applied. The external clock is further coupled directly and via an inverting delay to a logic circuit, the output of which controls a switching device connected across a capacitor. The capacitor is coupled to a current source and to a comparator that is coupled to a reference voltage. The comparator output serves as the select control for the multiplexer. The switching device repeatedly discharges the capacitor in response to the external clock signal, but otherwise allows the capacitor to be charged by the current source. The external clock signal is coupled to the output of the multiplexer, as long as the capacitor is repeatedly discharged by the external clock signal at a frequency sufficient to maintain the voltage across the capacitor less than the reference voltage.
摘要翻译：不需要时钟选择引脚的时钟信号发生器包括应用了外部和内部时钟的多路复用器。外部时钟进一步直接耦合并通过反相延迟耦合到逻辑电路，逻辑电路的输出控制跨过电容器连接的开关器件。电容器耦合到电流源和耦合到参考电压的比较器。比较器输出用作多路复用器的选择控制。开关器件响应于外部时钟信号重复地对电容器进行放电，但是另外允许电容器由电流源充电。外部时钟信号耦合到多路复用器的输出端，只要电容器以足以使电容器两端的电压小于参考电压的频率由外部时钟信号反复放电。

37. 发明申请

WO2004064236A1 MULTIPHASE CONVERTER CONTROLLER USING SINGLE GAIN RESISTOR 审中-公开
标题翻译：使用单增益电阻的多相变换器控制器
公开(公告)号：WO2004064236A1
公开(公告)日：2004-07-29
申请号：PCT/US2003/037169
申请日：2003-11-19
申请人： INTERSIL AMERICAS INC.
发明人： ISHAM, Robert, H.
IPC分类号： H02M3/158
CPC分类号： H02M3/1584 , H02M2001/0025
摘要： A controller for a multiphase converter including an error amplifier (211), a gain resistor RG, (311), a current sense circuit (301) and a gain adjust amplifier (305). The error amplifier generates an error signal ERR based on an error voltage developed across a feedback resistance RFB. The current sense circuit converts each of multiple sensed load currents into corresponding proportional voltages VS1 - VSN. The gain adjust amplifier circuit receives the proportional voltages and operates to apply at least one gain adjust voltage to the gain resistor to develop a gain adjust current that is applied through the feedback resistance to adjust gain. In one embodiment, the proportional voltages are time multiplexed (303) or averaged (401) to provide the gain adjust voltage(s). An IC (300, 400) integrating the multiphase converter need only include a single gain pin (309) for coupling to a gain resistor to set gain for each phase.
摘要翻译：一种用于多相转换器的控制器，包括误差放大器（211），增益电阻器RG，（311），电流检测电路（301）和增益调整放大器（305）。误差放大器基于跨反馈电阻RFB产生的误差电压产生误差信号ERR。电流检测电路将多个检测到的负载电流中的每一个转换成相应的比例电压VS1-VSN。增益调节放大器电路接收比例电压并且操作以将至少一个增益调整电压施加到增益电阻器，以产生通过反馈电阻施加的增益调整电流以调节增益。在一个实施例中，比例电压被时分复用（303）或平均化（401）以提供增益调整电压。集成多相转换器的IC（300,400）仅需要包括用于耦合到增益电阻器以设置每相的增益的单个增益引脚（309）。

38. 发明申请

WO2004054079A2 SELF-POWERED OVER-VOLTAGE PROTECTION CIRCUIT 审中-公开
标题翻译：自供电过电压保护电路
公开(公告)号：WO2004054079A2
公开(公告)日：2004-06-24
申请号：PCT/US2003/034917
申请日：2003-11-04
申请人： INTERSIL AMERICAS INC. , ISHAM, Robert, Haynes
发明人： ISHAM, Robert, Haynes
IPC分类号： H02M3/158
CPC分类号： H02M3/1588 , H02M1/32 , Y02B70/1466
摘要： A self-powered overvoltage protection circuit for a regulated DC-DC converter looks for the onset of a very large input voltage prior to regulation. In response to such a voltage during this interval, it turns on a low side electronic power switching device, in accordance with the voltage at one of the phase node and the regulated voltage output terminal from which the protection circuit derives its power. This provides a bypass path for an overvoltage that would otherwise be coupled from the regulated voltage output terminal to one or more load devices.
摘要翻译：用于稳压DC-DC转换器的自供电过电压保护电路在调节之前寻找非常大的输入电压的开始。响应于该间隔期间的这种电压，它根据保护电路从其产生功率的相位节点和调节电压输出端之一处的电压来接通低边电子功率开关装置。这提供了用于过电压的旁路路径，否则过电压将从调节电压输出端子耦合到一个或多个负载装置。

39. 发明申请

WO2004019471A1 CLOSED LOOP DIODE EMULATOR FOR DC-DC CONVERTER 审中-公开
标题翻译：用于DC-DC转换器的闭环二极管仿真器
公开(公告)号：WO2004019471A1
公开(公告)日：2004-03-04
申请号：PCT/US2003/025392
申请日：2003-08-14
申请人： INTERSIL AMERICAS INC. , WIKTOR, Stefan Wlodzimierz , LI, Xuening
发明人： WIKTOR, Stefan Wlodzimierz , LI, Xuening
IPC分类号： H02M3/158
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A diode emulator for a DC-DC buck converter employs a variable current ramp-based circuit that monitors the state of the phase voltage at the common node between two power switching devices. Incrementally with each pulse width modulation cycle, the diode emulator adjusts the time of turn-off of the lower power switching device, until the monitored phase voltage indicates that the emulator is effectively tracking the negative going, zero-crossing of the ripple current through an output inductor.
摘要翻译：用于DC-DC降压转换器的二极管仿真器采用基于可变电流斜坡的电路，其监测两个功率开关器件之间的公共节点处的相电压状态。随着每个脉冲宽度调制周期的增加，二极管仿真器调节下功率开关器件关断的时间，直到被监控的相电压指示仿真器有效跟踪纹波电流的负向过零输出电感。

40. 发明申请

WO2004017588A1 WIRELESS RECEIVER FOR SORTING PACKETS USING CORRELATORS 审中-公开
标题翻译：无线接收器，用于使用相关器分配包
公开(公告)号：WO2004017588A1
公开(公告)日：2004-02-26
申请号：PCT/US2003/025980
申请日：2003-08-19
申请人： INTERSIL AMERICAS INC.
发明人： HALFORD, Steven, D. , FROGGE, Perry W.
IPC分类号： H04L27/00
CPC分类号： H04L27/0012 , H04L27/0008 , H04L27/2647
摘要： A wireless receiver (100) that sorts packets including a packet detector (105, 203), multiple correlators (107, 111), and multiple packet processors (109, 113). Each correlator correlates a received signal according to packet type. Each packet processor processes the received signal according to packet type. A signal power detector (105) may be provided to initially qualify the received signal as containing a packet, and the correlators determine whether a packet is present. The correlators may be configured for sequential or simultaneous correlation. For the simultaneous correlator configuration, a correlation monitor (203) is provided to monitor correlation results to determine if the received signal contains a packet, and if so, to determine packet type. A low SNR packet detector may be provided which correlates the received signal to detect weak packet signals. The signal power detector (105) may be omitted, and the correlators may simultaneously monitor the received signal while a correlation monitor may continuously monitor correlation results for packet detection.
摘要翻译：一种分组的无线接收机（100），包括分组检测器（105,203），多个相关器（107,111）和多个分组处理器（109,113）。每个相关器根据分组类型将接收到的信号相关。每个分组处理器根据分组类型处理接收到的信号。可以提供信号功率检测器（105）以将接收到的信号初始限定为包含分组，并且相关器确定分组是否存在。相关器可以被配置为顺序或同时相关。对于同时相关器配置，提供相关监视器（203）以监视相关结果以确定接收到的信号是否包含分组，并且如果是，则确定分组类型。可以提供低SNR分组检测器，其将接收的信号相关联以检测弱分组信号。可以省略信号功率检测器（105），并且相关器可以同时监视接收到的信号，同时相关监视器可以连续监视分组检测的相关结果。

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