公开(公告)号：US5845141A

公开(公告)日：1998-12-01

申请号：US721911

申请日：1996-09-27

申请人： Harold L. Massie

发明人： Harold L. Massie

IPC分类号： G06F1/26 ,  G06F1/28

CPC分类号： G06F1/26 ,  G06F1/28

摘要： A computer system that includes supply programming circuits for remotely programming a power supply such that minimum operating voltages are maintained. The computer system includes a power supply having a supply output line and a supply sense line. The power supply provides a supply voltage via the supply output line in response to a sense voltage received via the sense line. A first circuit that operates at the supply voltage is coupled to the supply output line. A first supply programming circuit is coupled to the first circuit, the supply output line and the sense line. The first supply programming circuit senses the supply voltage at the first circuit and adjusts the sense voltage in response to the sensed supply voltage at the first circuit. A second circuit is also coupled to the supply output line. A second supply programming circuit senses the supply voltage at the second circuit and adjusts the sense voltage in response to the sensed supply voltage at the second circuit. Only the supply programming circuit that senses the lowest supply voltage adjusts the sense voltage.

摘要翻译： 一种计算机系统，其包括用于远程编程电源的供应编程电路，从而保持最小工作电压。 计算机系统包括具有电源输出线和电源检测线的电源。 电源通过电源输出线提供响应于通过感测线接收的感测电压的电源电压。 以电源电压工作的第一电路耦合到电源输出线。 第一电源编程电路耦合到第一电路，电源输出线和感测线。 第一电源编程电路检测第一电路处的电源电压并响应于第一电路处感测到的电源电压来调节感测电压。 第二电路也耦合到电源输出线。 第二电源编程电路感测第二电路处的电源电压，并且响应于在第二电路处感测的电源电压来调节感测电压。 只有感应最低电源电压的电源编程电路才能调整感测电压。

公开(公告)号：US5822166A

公开(公告)日：1998-10-13

申请号：US759661

申请日：1996-12-05

申请人： Harold L. Massie

发明人： Harold L. Massie

IPC分类号： H02H3/24 ,  H02H3/22

CPC分类号： H02H3/243 ,  Y10T307/735

摘要： A transient suppression circuit suppresses transients on a dc power bus, extending between a power supply and a load which carries a first voltage having a nominal value, by charging a capacitor to a second voltage greater than the nominal voltage, detecting a threshold at which the first voltage drops below its nominal value by more than a first predetermined amount and coupling energy from the capacitor to the bus to compensate for the drop in voltage in response to detecting the threshold.

摘要翻译： 瞬态抑制电路通过将电容器充电到大于额定电压的第二电压来抑制直流电源总线上的瞬变，在电源和具有标称值的第一电压的负载之间延伸，检测阈值， 第一电压降低到其标称值以下超过第一预定量，并且将来自电容器的能量耦合到总线，以补偿响应于阈值检测的电压降。

公开(公告)号：US5808377A

公开(公告)日：1998-09-15

申请号：US584106

申请日：1996-01-11

申请人： Harold L. Massie ,  Russel K. Hampsten

发明人： Harold L. Massie ,  Russel K. Hampsten

IPC分类号： G11C5/14 ,  H02J1/08 ,  H02J1/00 ,  G11C7/00

CPC分类号： G11C5/143 ,  H02J1/08 ,  Y10T307/696

摘要： Where a computer system PC board has two separate power planes at different voltage levels and a CPU accesses both power planes, a system for detecting when a CPU will short the two power planes and shutting down the power to the lower voltage plane. The contention prevention circuit consists of a voltage level detection circuit having an input connected to the core power plane. The voltage level detection circuit is connected to the input of a shutdown circuit. Upon receipt of a signal from the voltage level detection circuit indicating that the voltage on the core power plane is greater than that provided by the core power supply, the shutdown circuit disables the core power supply.

摘要翻译： 在计算机系统PC板具有不同电压级别的两个独立的电源层和CPU访问两个电源层的系统中，用于检测CPU将何时缩短两个电源层并关闭到较低电压平面的电力的系统。 争用防御电路由具有连接到核心电源层的输入端的电压电平检测电路组成。 电压电平检测电路连接到关断电路的输入端。 在从电压电平检测电路接收到表示核心电力平面上的电压大于核心电源所提供的电压的信号时，关断电路将禁止核心电源。

公开(公告)号：US5678049A

公开(公告)日：1997-10-14

申请号：US254249

申请日：1994-06-06

申请人： Harold L. Massie

发明人： Harold L. Massie

IPC分类号： G06F1/26 ,  G06F1/28

CPC分类号： G06F1/26 ,  G06F1/28

摘要： A computer system that includes supply programming circuits for remotely programming a power supply such that minimum operating voltages are maintained. The computer system includes a power supply having a supply output line and a supply sense line. The power supply provides a supply voltage via the supply output line in response to a sense voltage received via the sense line. A first circuit that operates at the supply voltage is coupled to the supply output line. A first supply programming circuit is coupled to the first circuit, the supply output line and the sense line. The first supply programming circuit senses rises the supply voltage at the first circuit and adjusts the sense voltage in response to the sensed supply voltage at the first circuit. A second circuit is also coupled to the supply output line. A second supply programming circuit senses the supply voltage at the second circuit and adjusts the sense voltage in response to the sensed supply voltage at the second circuit. Only the supply programming circuit that senses the lowest supply voltage adjusts the sense voltage.

摘要翻译： 一种计算机系统，其包括用于远程编程电源的供应编程电路，从而保持最小工作电压。 计算机系统包括具有电源输出线和电源检测线的电源。 电源通过电源输出线提供响应于通过感测线接收的感测电压的电源电压。 以电源电压工作的第一电路耦合到电源输出线。 第一电源编程电路耦合到第一电路，电源输出线和感测线。 第一电源编程电路感测上升第一电路处的电源电压，并且响应于第一电路处感测到的电源电压来调节感测电压。 第二电路也耦合到电源输出线。 第二电源编程电路感测第二电路处的电源电压，并且响应于在第二电路处感测的电源电压来调节感测电压。 只有感应最低电源电压的电源编程电路才能调整感测电压。

公开(公告)号：US5587650A

公开(公告)日：1996-12-24

申请号：US355027

申请日：1994-12-13

申请人： Harold L. Massie

发明人： Harold L. Massie

IPC分类号： G05F1/575 ,  H02M3/156

CPC分类号： G05F1/575 ,  H02M3/1563

摘要： A switching regulator circuit. The switching regulator circuit comprises a primary feedback loop and a secondary feedback connection. The primary feedback loop comprises a drive circuit, a switching transistor, an output stage, a voltage divider circuit, and a pre-drive circuit that are coupled in series. The pre-drive circuit is coupled to the drive circuit to close the primary feedback loop. The primary feedback loop uses negative feedback to output a predetermined output voltage. The secondary feedback connection is coupled between an input and an output of the pre-drive circuit. The secondary feedback connection uses regenerative feedback to provide hysteresis such that the primary feedback loop oscillates. The switching regulator circuit thus regulates the output voltage without requiring a separate oscillator circuit.

摘要翻译： 开关稳压电路。 开关调节器电路包括主反馈回路和次级反馈连接。 主反馈回路包括串联耦合的驱动电路，开关晶体管，输出级，分压器电路和预驱动电路。 预驱动电路耦合到驱动电路以闭合主反馈回路。 主反馈环路使用负反馈来输出预定的输出电压。 次级反馈连接耦合在预驱动电路的输入和输出之间。 次级反馈连接使用再生反馈来提供滞后，使得主反馈回路振荡。 因此，开关调节器电路调节输出电压，而不需要单独的振荡器电路。

公开(公告)号：US5428524A

公开(公告)日：1995-06-27

申请号：US184388

申请日：1994-01-21

申请人： Harold L. Massie

发明人： Harold L. Massie

IPC分类号： G05F1/59 ,  H02J1/10

CPC分类号： G05F1/59 ,  H02J1/10 ,  Y10T307/505 ,  Y10T307/555

摘要： An apparatus and method for current sharing among multiple power supplies is disclosed. The output current of each power supply is compared in an amplifier which produces an output signal. This signal controls a transistor used to enable or disable current flow on a SENSE line in a particular power supply. By controlling the SENSE line, the output current of each power supply is adjusted to roughly equal levels. The combined current is thereby the combination of approximately equal shared outputs of each individual power supply. The current share of each individual power supply is offset by a predetermined level to prevent a race condition in the initial power-up phase.

摘要翻译： 公开了一种用于多个电源之间的电流共享的装置和方法。 在产生输出信号的放大器中比较每个电源的输出电流。 该信号控制用于在特定电源中的SENSE线路上启用或禁用电流的晶体管。 通过控制SENSE线，每个电源的输出电流被调整到大致相等的电平。 因此，组合电流是每个单独电源的大致相等的共享输出的组合。 每个单独电源的当前份额被偏移预定水平以防止在初始上电阶段中的竞争条件。

公开(公告)号：US08581416B2

公开(公告)日：2013-11-12

申请号：US13327032

申请日：2011-12-15

申请人： Harold L. Massie ,  Phillip Celaya ,  David F. Moeller ,  Mark Randol

发明人： Harold L. Massie ,  Phillip Celaya ,  David F. Moeller ,  Mark Randol

IPC分类号： H01L23/48 ,  H01L23/52 ,  H01L29/40 ,  H01L23/495 ,  H01L21/00

CPC分类号： H01L23/49524 ,  H01L23/3107 ,  H01L23/49575 ,  H01L24/37 ,  H01L24/40 ,  H01L2224/37147 ,  H01L2224/376 ,  H01L2224/40095 ,  H01L2224/40139 ,  H01L2224/40245 ,  H01L2224/48137 ,  H01L2224/49171 ,  H01L2224/73221 ,  H01L2924/00014 ,  H01L2924/1305 ,  H01L2924/13091 ,  H01L2924/181 ,  H01L2924/30107 ,  H01L2924/00 ,  H01L2924/00012 ,  H01L2224/84

摘要： In one embodiment, a leadframe for a semiconductor package includes a source connection area for one transistor and a drain connection point for a second transistor, and a common connection for using a connection clip to couple a drain of the first transistor to a source of the second transistor and to the common connection.

摘要翻译： 在一个实施例中，用于半导体封装的引线框架包括用于一个晶体管的源极连接区域和用于第二晶体管的漏极连接点，以及用于使用连接夹将第一晶体管的漏极耦合到第二晶体管的源极的公共连接 第二晶体管和公共连接。

公开(公告)号：US07746156B1

公开(公告)日：2010-06-29

申请号：US11787456

申请日：2007-04-16

申请人： Harold L. Massie ,  Kuang Ming Daniel Chang

发明人： Harold L. Massie ,  Kuang Ming Daniel Chang

IPC分类号： H03K17/687

CPC分类号： H03K17/063 ,  H03K2217/0036

摘要： A circuit and method for driving a field effect transistor is disclosed. A switching circuit includes a driver device having a signal input, a supply voltage input, and an output. The driver output is coupled to a JFET. A converter couples to the JFET and provides an output of the switching circuit. When enabled, a switching device couples this switching circuit output to the gate of the JFET, thus causing the JFET to be driven into conduction.

摘要翻译： 公开了用于驱动场效应晶体管的电路和方法。 开关电路包括具有信号输入，电源电压输入和输出的驱动器装置。 驱动器输出耦合到JFET。 A转换器耦合到JFET并提供开关电路的输出。 当使能时，开关器件将该开关电路输出耦合到JFET的栅极，从而使JFET被驱动成导通。

公开(公告)号：US06271650B1

公开(公告)日：2001-08-07

申请号：US09548480

申请日：2000-04-13

申请人： Harold L. Massie ,  Edward L. Payton

发明人： Harold L. Massie ,  Edward L. Payton

IPC分类号： G05F140

CPC分类号： H02M3/1584

摘要： A power supply including a DC—DC converter with multiphase current sharing and ripple regulation. In one embodiment, the disclosed power supply includes a plurality of power drivers coupled to supply power to the supply output. The power drivers are cyclically enabled to provide multiphase current sharing. Ripple regulation is provided with a hysteretic comparator that is coupled to receive feedback from the power supply output. The hysteretic comparator is used to clock or advance a select circuit, which is used to cyclically enable each one of the plurality of power drivers. A reset circuit is included to reset the hysteretic comparator in the event that the hysteretic comparator has not switched for an excessive amount of time. A supply current sensor is used to monitor the current drawn by the plurality of power drivers. As the amount of current drawn by any of the plurality of power drivers rises, the on cycle time of the power driver that is delivering power to the power supply output at that particular time is shortened, enabling the next power driver to deliver power.

摘要翻译： 电源包括具有多相电流共享和纹波调节的DC-DC转换器。 在一个实施例中，所公开的电源包括耦合以向电源输出供电的多个电源驱动器。 电源驱动器循环启用，以提供多相电流共享。 纹波调节器带有滞后比较器，其被耦合以从电源输出接收反馈。 迟滞比较器用于对选择电路进行时钟或前进，该选择电路用于循环地使能多个电源驱动器中的每一个。 在迟滞比较器没有切换过多的时间的情况下，包括复位电路以复位滞后比较器。 供电电流传感器用于监视由多个电源驱动器画出的电流。 随着多个电力驱动器中的任何一个引起的电流量的上升，在该特定时间将功率输送到电源输出的功率驱动器的接通时间缩短，使得下一个电源驱动器能够传送电力。

公开(公告)号：US5889387A

公开(公告)日：1999-03-30

申请号：US764930

申请日：1996-12-13

申请人： Harold L. Massie

发明人： Harold L. Massie

IPC分类号： H02J7/00 ,  H02M3/156

CPC分类号： H02M3/156 ,  H02J7/0093 ,  H02M2001/0009

摘要： A battery charging circuit, particularly useful in a laptop computer system, includes a voltage input terminal coupled to a dc voltage. A first switch couples the voltage input terminal to an output coupled to the battery through a current sense resistor. A first current sink which is on when the charger circuit is on draws current from the input side of the current sense resistor through a first resistor to develop a first voltage. This voltage and a voltage coupled through a second resistor from the battery side of the sense resistor are inputs to a comparator, the output of which controls the first switch. A second current sink, when on, draws current through the second resistor causing the first switch to be held off, turning the charging circuit off. An ON/OFF terminal, to which a variable duty cycle square wave is supplied, controls the turning on and off of the first and second current sinks, with the length of the duty cycle controlling the average current supplied to the battery.

摘要翻译： 在膝上型计算机系统中特别有用的电池充电电路包括耦合到直流电压的电压输入端子。 第一开关通过电流检测电阻将电压输入端耦合到耦合到电池的输出。 当充电器电路接通时，导通的第一电流吸收器通过第一电阻器从电流检测电阻器的输入端吸取电流，以产生第一电压。 该电压和通过来自检测电阻器的电池侧的第二电阻耦合的电压是输入到比较器，其输出控制第一开关。 第二个电流吸收器在接通时，通过第二个电阻吸入电流，使第一个开关保持关闭，关闭充电电路。 一个供给可变占空比方波的ON / OFF端子控制第一和第二电流吸收器的接通和断开，占空比的长度控制提供给电池的平均电流。