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1. 发明授权

US08441325B2 Isolator with complementary configurable memory 有权
标题翻译：隔离器具有互补的可配置存储器
公开(公告)号：US08441325B2
公开(公告)日：2013-05-14
申请号：US12494618
申请日：2009-06-30
申请人： Phil A. Callahan , Ahsan Javed , Zhiwei Dong , Axel Thomsen , Donald E. Alfano , Timothy Dupuis , Ka Y. Leung
发明人： Phil A. Callahan , Ahsan Javed , Zhiwei Dong , Axel Thomsen , Donald E. Alfano , Timothy Dupuis , Ka Y. Leung
IPC分类号： H03H2/00 , H04B3/00
CPC分类号： H01L24/48 , H01L23/49503 , H01L23/4952 , H01L23/49575 , H01L23/642 , H01L23/66 , H01L24/06 , H01L24/49 , H01L25/0655 , H01L2223/6611 , H01L2224/04042 , H01L2224/05554 , H01L2224/05599 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2224/48472 , H01L2224/49171 , H01L2224/49175 , H01L2224/85399 , H01L2924/00014 , H01L2924/01006 , H01L2924/01015 , H01L2924/01023 , H01L2924/01033 , H01L2924/01082 , H01L2924/13091 , H01L2924/14 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H04B2203/5491 , H01L2224/45099 , H01L2924/00
摘要： An isolator that includes first and second substantially identical circuitry galvanically isolated from each other and each having at least one communications channel thereon for communicating signals across an isolation boundary therebetween and each of said first and second circuitry having configurable functionality associated with the operation thereof. A coupling device is provided for coupling signal across the isolation boundary between the at least one communication channels of the first and second circuitry. First and second configuration memories are provided, each associated with a respective one of the first and second circuitry. First and second configuration control devices are provided, each associated with a respective one of the first and second circuitry and each configuring the functionality of the associated one of the first and second circuitry. The first and second configurable memories have stored therein complementary configuration information to control each of the functionalities of the first and second circuitry to operate in a complementary manner for communication of signals across the isolation boundary.
摘要翻译：一种隔离器，其包括彼此电隔离的第一和第二基本相同的电路，并且每个具有至少一个用于在其间的隔离边界传送信号的通信信道，所述第一和第二电路中的每一个具有与其操作相关联的可配置功能。提供耦合装置用于在第一和第二电路的至少一个通信信道之间的隔离边界上耦合信号。提供第一和第二配置存储器，每个与第一和第二电路中的相应一个相关联。提供第一和第二配置控制设备，每个配置控制设备与第一和第二电路中的相应一个相关联，并且每个配置控制设备配置第一和第二电路中相关联的一个的功能。第一和第二可配置存储器在其中存储有互补配置信息，以控制第一和第二电路的每个功能以互补的方式进行操作，用于跨越隔离边界的信号通信。

2. 发明授权

US07821251B2 Current sensor 有权
标题翻译：电流传感器
公开(公告)号：US07821251B2
公开(公告)日：2010-10-26
申请号：US11609746
申请日：2006-12-12
申请人： Donald E. Alfano , Timothy J. Dupuis
发明人： Donald E. Alfano , Timothy J. Dupuis
IPC分类号： G01R15/18
CPC分类号： G01R19/0092 , H01L2224/45147 , H01L2224/48091 , H01L2224/4826 , H01L2224/49111 , H01L2224/49171 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
摘要： A current sensor includes a sensing circuit for sensing current and supplying indications thereof. The current sensor also includes two or more output terminals coupled to the sensing circuit that alternately supply respective indications of the sensed current according to control signals supplied to the current sensor.
摘要翻译：电流传感器包括用于感测电流并提供其指示的感测电路。电流传感器还包括耦合到感测电路的两个或更多个输出端子，其根据提供给电流传感器的控制信号交替地提供感测电流的各个指示。

3. 发明授权

US07498962B2 Analog-to-digital converter with low power track-and-hold mode 有权
标题翻译：具有低功率跟踪和保持模式的模数转换器
公开(公告)号：US07498962B2
公开(公告)日：2009-03-03
申请号：US11618644
申请日：2006-12-29
申请人： Donald E. Alfano , Danny J. Allred , Douglas S. Piasecki , Kenneth W. Fernald , Ka Y. Leung , Brian Caloway , Alvin Storvik , Paul Highley , Douglas R. Holberg
发明人： Donald E. Alfano , Danny J. Allred , Douglas S. Piasecki , Kenneth W. Fernald , Ka Y. Leung , Brian Caloway , Alvin Storvik , Paul Highley , Douglas R. Holberg
IPC分类号： H03M1/00
CPC分类号： G06F13/385 , G06F1/08 , G06F15/7814 , H03M1/122 , H03M1/183 , H03M1/462 , Y02D10/12 , Y02D10/13 , Y02D10/14 , Y02D10/151
摘要： A method for converting analog data to digital data includes operating an analog-to-digital data converter in a tracking mode to sample an input signal and in a convert mode to convert the sampled input signal after sampling to a digital signal. The analog-to-digital data converter is controlled with a controller to operate in different modes of operation by providing at least one step wherein the tracking mode of operation is controlled to initiate at a predetermined time to begin the sampling operation.
摘要翻译：一种将模拟数据转换为数字数据的方法包括以跟踪模式操作模拟数字数据转换器，以对输入信号进行采样，并以转换模式将采样后的采样输入信号转换为数字信号。模拟数字数据转换器由控制器控制，以通过提供至少一个步骤操作在不同的操作模式，其中跟踪操作模式被控制以在预定时间开始以开始采样操作。

4. 发明授权

US07492139B2 Digital control circuit for switching power supply with serial data input 有权
标题翻译：数字控制电路，用于串行数据输入开关电源
公开(公告)号：US07492139B2
公开(公告)日：2009-02-17
申请号：US11382462
申请日：2006-05-09
申请人： Donald E. Alfano , Paul Highley , Kenneth W. Fernald
发明人： Donald E. Alfano , Paul Highley , Kenneth W. Fernald
IPC分类号： G05F1/40
CPC分类号： H02M3/33576 , H02M3/33515
摘要： A method is disclosed for converting DC power from a first voltage level on an input to a different voltage level on an output for delivery to a load. The method includes switching current in a switching operation from the input to the output through an inductive element and measuring the voltage/current parameters on the input and output. A control algorithm is then utilized to determine control parameters necessary to make a control move to effect the switching operation, the control algorithm utilizing as inputs the measured voltage/current parameters. A digital control system controls the switching operation, which digital control system is operable to be controlled by the control algorithm. Configuration data is received on a serial data bus for configuring the control algorithm. Thereafter, the operation of the control algorithm is modified in response to receiving the configuration information.
摘要翻译：公开了一种用于将DC功率从输入端的第一电压电平转换为输出到输出的输出上的不同电压电平的方法。该方法包括通过电感元件将开关操作中的电流从输入切换到输出，并测量输入和输出上的电压/电流参数。然后利用控制算法来确定使控制移动以实现开关操作所必需的控制参数，该控制算法利用测量的电压/电流参数作为输入。数字控制系统控制切换操作，数字控制系统可操作地由控制算法控制。在串行数据总线上接收配置数据，以配置控制算法。此后，响应于接收到配置信息来修改控制算法的操作。

5. 发明申请

US20080082716A1 BUS TO MCU BRIDGE 有权
标题翻译：总线到单片机桥
公开(公告)号：US20080082716A1
公开(公告)日：2008-04-03
申请号：US11537452
申请日：2006-09-29
申请人： DONALD E. ALFANO
发明人： DONALD E. ALFANO
IPC分类号： G06F13/20
CPC分类号： G06F13/4022
摘要： An integrated circuit enables interconnection of a serial digital bus with a microcontroller unit. A physical interface provides for the transmission and reception of messages over the serial digital bus. A communication interface includes a serial interface for communicating with the microcontroller unit. The communication's interface further extracts clock data and information data from the received messages from the serial data bus in a format that may be transmitted to the microcontroller unit via the serial interface. The communication interface further formats data received from the serial interface into messages for transmission onto the serial digital bus. A sync timing generator generates a sync pulse for synchronizing the microcontroller unit with the serial interface of the communication interface.
摘要翻译：集成电路使串行数字总线与微控制器单元互连。物理接口通过串行数字总线提供消息的发送和接收。通信接口包括用于与微控制器单元通信的串行接口。通信接口还从串行数据总线的接收到的消息中提取时钟数据和信息数据，格式可以通过串行接口发送到微控制器单元。通信接口进一步将从串行接口接收的数据格式化成用于传输到串行数字总线的消息。同步定时发生器产生用于使微控制器单元与通信接口的串行接口同步的同步脉冲。

6. 发明授权

US6054823A Verification of fan operation 失效
标题翻译：风扇运行验证
公开(公告)号：US6054823A
公开(公告)日：2000-04-25
申请号：US81309
申请日：1998-05-19
申请人： Jerry Collings , Chuong Nguyen , Joseph James Judkins, III , Donald E. Alfano , Ali Tasdighi , Quoi V. Huynh , Sang T. Ngo
发明人： Jerry Collings , Chuong Nguyen , Joseph James Judkins, III , Donald E. Alfano , Ali Tasdighi , Quoi V. Huynh , Sang T. Ngo
IPC分类号： F04D27/02 , H02H7/093 , H01R39/46
CPC分类号： H02H7/093 , F04D27/008
摘要： An apparatus for sensing the rotation of a brushless DC fan includes the fan and a sense/driver circuit and a capacitance. The sense/driver circuit is coupled to the fan to receive a sense input signal including a fluctuating electrical effect caused by fan commutation events. The sense/driver circuit processes the sense input signal to generate a sense output signal indicative of fan operation. The sense/driver circuit includes an integrated circuit. The integrated circuit includes a sense input pin, a ground return pin, a driver circuit, an integrated filter portion, a filter pin and a level detecting circuit. The capacitance is coupled to the filter pin to provide a filter with the integrated filter portion. The driver circuit includes a control terminal, a first current handling terminal coupled to the sense input pin and a second current handling terminal coupled to provide a ground return pat. The integrated filter portion includes a filter input coupled to at least one of the first and second current handling terminals of the driver circuit, and a filter output for providing a filter output signal to the level detecting circuit. The level detecting circuit generates the sense output signal from the filter output signal. The filter derives the filter output signal indicative of the fan commutation events responsive to receiving a signal at the sense input pin.
摘要翻译：用于感测无刷直流风扇的旋转的装置包括风扇和感测/驱动器电路和电容。感测/驱动器电路耦合到风扇以接收包括由风扇换向事件引起的波动电效应的感测输入信号。感测/驱动电路处理感测输入信号以产生指示风扇操作的感测输出信号。感测/驱动电路包括集成电路。集成电路包括感测输入引脚，接地返回引脚，驱动器电路，集成滤波器部分，滤波器引脚和电平检测电路。电容耦合到滤波器引脚以提供具有集成滤波器部分的滤波器。驱动器电路包括控制端子，耦合到感测输入引脚的第一电流处理端子和耦合以提供接地回路的第二电流处理端子。集成滤波器部分包括耦合到驱动器电路的第一和第二电流处理终端中的至少一个的滤波器输入和用于向电平检测电路提供滤波器输出信号的滤波器输出。电平检测电路从滤波器输出信号产生感测输出信号。响应于在感测输入引脚处接收到信号，滤波器导出指示风扇换向事件的滤波器输出信号。

7. 发明授权

US6040668A Monolithic fan controller 失效
标题翻译：整体风扇控制器
公开(公告)号：US6040668A
公开(公告)日：2000-03-21
申请号：US749864
申请日：1996-11-14
申请人： Quoi V. Huynh , Sang T. Ngo , Joseph James Judkins, III , Donald E. Alfano
发明人： Quoi V. Huynh , Sang T. Ngo , Joseph James Judkins, III , Donald E. Alfano
IPC分类号： G05D23/19 , G05B5/00
CPC分类号： G05D23/1912 , Y10S388/934
摘要： Disclosed herein is a monolithic fan controller circuit which provides the following features: a special start-up routine for the fan; a fan fault detector; a thermal fault detector; an automatic speed controller; a minimum speed controller; a routine for attempting to clear temporary fan faults; and a controllable drive signal frequency. A start-up control circuit provides an initial high duty-cycle kick to the fan in order to initiate the rotation of the fan. A temperature sensor, which may be external or internal to the monolithic fan controller, supplies a signal which is proportional to measured temperature. This signal is used to control the output pulse width of a pulse-width modulator (PWM) or control the frequency of a pulse frequency modulator (PFM). The PWM or PFM output signal regulates the speed of the brushless (or brush) DC fan motor. In a preferred embodiment, the monolithic fan controller has 8 pins.
摘要翻译：本文公开了一种单片风扇控制器电路，其提供以下特征：风扇的特殊启动程序; 风扇故障检测器; 热故障检测器; 自动速度控制器; 最小速度控制器试图清除临时风扇故障的例行程序; 和可控的驱动信号频率。启动控制电路为风扇提供初始高占空比踢脚，以启动风扇的旋转。可以在单片风扇控制器外部或内部的温度传感器提供与测量温度成比例的信号。该信号用于控制脉冲宽度调制器（PWM）的输出脉冲宽度或控制脉冲频率调制器（PFM）的频率。 PWM或PFM输出信号调节无刷（或刷式）直流风扇电机的速度。在优选实施例中，单片风扇控制器具有8个引脚。

8. 发明授权

US08049573B2 Bidirectional multiplexed RF isolator 有权
标题翻译：双向多路复用RF隔离器
公开(公告)号：US08049573B2
公开(公告)日：2011-11-01
申请号：US11772178
申请日：2007-06-30
申请人： Donald E. Alfano , Brett Etter , Timothy Dupuis
发明人： Donald E. Alfano , Brett Etter , Timothy Dupuis
IPC分类号： H03H7/00 , H04B3/00
CPC分类号： H01L23/66 , H01L23/48 , H01L23/49503 , H01L23/4952 , H01L23/49575 , H01L24/06 , H01L24/48 , H01L24/49 , H01L2224/04042 , H01L2224/05554 , H01L2224/05599 , H01L2224/48095 , H01L2224/48137 , H01L2224/48247 , H01L2224/48464 , H01L2224/49171 , H01L2224/49175 , H01L2224/49176 , H01L2224/85399 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01014 , H01L2924/01015 , H01L2924/01023 , H01L2924/01027 , H01L2924/01033 , H01L2924/01082 , H01L2924/01083 , H01L2924/1204 , H01L2924/12041 , H01L2924/13055 , H01L2924/13091 , H01L2924/14 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01L2924/30105 , H01L2924/30107 , H01L2924/3011 , H01L2924/3025 , H03K5/135 , H03M9/00 , H04B3/542 , H04B3/56 , H04B2203/542 , H04L5/14 , H04L25/0268 , H01L2924/00 , H01L2224/45099
摘要： An isolator provides bidirectional data transfer for a plurality of communications channels. First and second dies are located on first and second sides of a voltage isolation barrier and have a first and second plurality of digital data input/output pins associated therewith. First circuitry on the first die and third circuitry on the second die serializes a plurality of parallel digital data inputs from the digital data input/output pins onto one link across the barrier and transmits synchronization clock signals associated with the digital data inputs over a link across the barrier. Second circuitry on the second die and fourth circuitry on the first die de-serializes the digital data inputs from the first link onto the second digital data input/output pins and receives the first synchronization clock signal associated with the digital data inputs on the second link.
摘要翻译：隔离器为多个通信信道提供双向数据传输。第一和第二管芯位于电压隔离屏障的第一和第二侧上并且具有与其相关联的第一和第二多个数字数据输入/输出引脚。第一裸片上的第一电路和第二裸片上的第三电路将来自数字数据输入/输出引脚的多个并行数字数据输入串行化到跨越屏障的一个链路上，并通过跨链路传输与数字数据输入相关联的同步时钟信号屏障。第二管芯上的第二电路和第一管芯上的第四电路将来自第一链路的数字数据输入串行化到第二数字数据输入/输出引脚上，并且接收与第二链路上的数字数据输入相关联的第一同步时钟信号。

9. 发明授权

US07962773B2 Micro controller unit (MCU) with RTC 有权
标题翻译：微控制器（MCU）与RTC
公开(公告)号：US07962773B2
公开(公告)日：2011-06-14
申请号：US12046321
申请日：2008-03-11
申请人： Kenneth W. Fernald , Donald E. Alfano
发明人： Kenneth W. Fernald , Donald E. Alfano
IPC分类号： G06F1/26
CPC分类号： G06F1/3203
摘要： A microcontroller unit (MCU) is disclosed with a stand-alone Real Time Clock (RTC). The MCU includes a processing circuit for receiving digital information and processing said received digital information. A primary clock circuit provides the timing for the processing circuit. A power control circuit controls the power to the processing circuit and the primary clock circuit to control the operation thereof to operate in at least a full power mode drawing a full power level from a supply voltage input and a reduced power mode drawing less than the full power level from the supply voltage input. A stand-alone RTC circuit is also provided, the stand-alone RTC circuit including an RTC clock circuit operating independent of the primary clock circuit. A timer clocked by the RTC clock circuit is operable to increment a stored time value for output therefrom, the RTC clock circuit having a defined time base. An input/output (I/O) device provides access by the processing circuit to the results output by the timer. A power management circuitry manages the power to the stand-alone RTC circuit, such that the RTC clock circuit, the timer, and the I/O device operate regardless of the power mode of operation of the processing circuitry and the primary clock circuit.
摘要翻译：公开了具有独立实时时钟（RTC）的微控制器单元（MCU）。 MCU包括用于接收数字信息并处理所接收的数字信息的处理电路。主时钟电路为处理电路提供定时。电源控制电路控制处理电路和主时钟电路的电源，以控制其工作在至少全功率模式下工作，从供电电压输入和低功耗模式绘制小于全功率模式功率电平从电源电压输入。还提供独立的RTC电路，独立的RTC电路包括独立于主时钟电路工作的RTC时钟电路。由RTC时钟电路计时钟的定时器可操作以增加存储的时间值以便从其输出，RTC时钟电路具有确定的时基。输入/输出（I / O）设备提供处理电路对定时器输出的结果的访问。电源管理电路管理独立RTC电路的电源，使得RTC时钟电路，定时器和I / O设备无论处理电路和主时钟电路的功率工作模式如何都工作。

10. 发明授权

US07821428B2 MCU with integrated voltage isolator and integrated galvanically isolated asynchronous serial data link 失效
标题翻译： MCU具有集成电压隔离器和集成电隔离异步串行数据链路
公开(公告)号：US07821428B2
公开(公告)日：2010-10-26
申请号：US12165011
申请日：2008-06-30
申请人： Ka Y. Leung , Donald E. Alfano , David P. Bresemann
发明人： Ka Y. Leung , Donald E. Alfano , David P. Bresemann
IPC分类号： H03M9/00
CPC分类号： G06F13/4072 , G06F13/4278 , H01L2224/05554 , H01L2224/48137 , H01L2224/48247 , H01L2224/49171 , H01L2224/49175 , H01L2924/00014 , H01L2924/10253 , H01L2924/14 , H01L2924/181 , H01L2924/19041 , H01L2924/00 , H01L2224/45099 , H01L2924/00012
摘要： An integrated circuit comprises a first microcontroller unit for executing instructions in accordance with a first clock frequency. The microcontroller located on a first die and includes a first processing core for providing a parallel stream of data in accordance with the first clock frequency. A second microcontroller unit executes instructions in accordance with the first clock frequency. The second microcontroller is located on a second die and includes a second processing core for receiving the parallel stream of data in accordance with the first clock frequency. Capacitive isolation circuitry connected with the first microcontroller unit and the second microcontroller unit provides a high voltage isolation link between the first and the second microcontroller units. The capacitive isolation circuitry distributing a first portion of a high voltage isolation signal across a first group of capacitors associated with the first microcontroller unit and distributes a second portion of the high voltage isolation signal across a second group of capacitors associated with the second microcontroller unit. The capacitive isolation circuitry further transmits data from the parallel data stream between the first microcontroller and the second microcontroller in a serial data stream in accordance with the second clock frequency.
摘要翻译：集成电路包括用于根据第一时钟频率执行指令的第一微控制器单元。微控制器位于第一管芯上并且包括用于根据第一时钟频率提供并行数据流的第一处理核心。第二微控制器单元根据第一时钟频率执行指令。第二微控制器位于第二管芯上，并且包括用于根据第一时钟频率接收并行数据流的第二处理核。与第一微控制器单元和第二微控制器单元连接的电容隔离电路在第一和第二微控制器单元之间提供高电压隔离链路。电容隔离电路将高电压隔离信号的第一部分跨越与第一微控制器单元相关联的第一组电容器分配，并将第二部分高电压隔离信号分配到与第二微控制器单元相关联的第二组电容器上。电容隔离电路还根据第二时钟频率在串行数据流中从第一微控制器和第二微控制器之间的并行数据流传输数据。

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