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公开(公告)号：US07852148B2
公开(公告)日：2010-12-14
申请号：US12413271
申请日：2009-03-27
IPC分类号： H01L25/00
CPC分类号： G01R19/0092 , H01L2924/0002 , H01L2924/19043 , Y10T29/41 , H01L2924/00
摘要： In one embodiment, a sensing circuit includes a sense transistor and a compensation circuit to improve the accuracy of a sensing signal formed by the sensing circuit.
摘要翻译： 在一个实施例中，感测电路包括感测晶体管和补偿电路，以提高由感测电路形成的感测信号的精度。
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公开(公告)号：US5764047A
公开(公告)日：1998-06-09
申请号：US891414
申请日：1997-07-09
申请人： Harold L. Massie
发明人： Harold L. Massie
CPC分类号： G01R31/40
摘要： An apparatus for measuring the dc current in a power supply circuit includes a transformer having a primary winding, a core and a secondary winding, a current generator, a pulse generator, and a measurement circuit. The secondary winding of the transformer is coupled to the power supply circuit, wherein the power supply circuit supplies dc current to the secondary winding generating a second field of magnetic flux. The current generator, coupled to the primary winding of the transformer, supplies an ac current to the primary winding generating a first field of magnetic flux. The pulse generator, coupled to the primary winding, generates a pulse when the first field of magnetic flux is substantially equal to the second field of magnetic flux. The measuring circuit, coupled to the current generator and responsive to the pulse generator, measures the ac current from the current generator in response to a pulse received from the pulse generator, wherein the ac current is proportional to the dc current.
摘要翻译： 用于测量电源电路中的直流电流的装置包括具有初级绕组，铁芯和次级绕组的变压器，电流发生器，脉冲发生器和测量电路。 变压器的次级绕组耦合到电源电路，其中电源电路向次级绕组提供直流电流，产生第二磁通场。 耦合到变压器的初级绕组的电流发生器向初级绕组提供交流电流，产生第一磁通场。 耦合到初级绕组的脉冲发生器当磁通的第一场基本上等于第二磁通场时产生脉冲。 耦合到电流发生器并响应于脉冲发生器的测量电路响应于从脉冲发生器接收的脉冲测量来自电流发生器的交流电流，其中交流电流与直流电流成比例。
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公开(公告)号：US20130154073A1
公开(公告)日：2013-06-20
申请号：US13327032
申请日：2011-12-15
IPC分类号： H01L23/495 , H01L21/50 , H01L21/28
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。
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公开(公告)号：US06510065B1
公开(公告)日：2003-01-21
申请号：US09836049
申请日：2001-04-16
申请人： Harold L. Massie , Edward L. Payton
发明人： Harold L. Massie , Edward L. Payton
IPC分类号： H02M700
CPC分类号： H02M3/1584 , H02M1/14
摘要： Briefly, in accordance with one embodiment of the invention, a circuit includes: a DC-to-DC converter. The DC-to-DC converter includes a plurality of ripple regulator DC-to-DC converter circuits. The plurality of circuits are coupled so that the output signals produced by each of the ripple regulator DC-to-DC converter circuits is out of phase with respect to the other of the ripple regulator DC-to-DC converter circuits.
摘要翻译： 简而言之，根据本发明的一个实施例，电路包括：DC-DC转换器。 DC-DC转换器包括多个纹波调节器DC-DC转换器电路。 多个电路被耦合，使得由每个纹波调节器DC-DC转换器电路产生的输出信号相对于纹波调节器DC-DC转换器电路中的另一个异相。
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公开(公告)号：US06417653B1
公开(公告)日：2002-07-09
申请号：US08848842
申请日：1997-04-30
IPC分类号： G05F140
CPC分类号： H02M1/32 , H02M3/1588 , H02M2001/0025 , Y02B70/1466
摘要： Briefly, in accordance with one embodiment of the invention, a DC-to-DC converter includes: a circuit configuration to modify the set point of the output voltage signal level of the DC-to-DC converter circuit in response to a transient signal by an amount related, at least in part, to the magnitude of the transient signal. Briefly, in accordance with yet another embodiment of the invention, a DC-to-DC converter circuit includes: a high-side and a low-side voltage switching device. The switching devices are coupled in a circuit configuration to apply a control voltage signal to each switching device based, at least in part, on the state of the other switching device.
摘要翻译： 简而言之，根据本发明的一个实施例，DC-DC转换器包括：电路配置，以响应于瞬态信号来修改DC-DC转换器电路的输出电压信号电平的设定点， 至少部分地与瞬态信号的幅度有关的量。 简而言之，根据本发明的另一实施例，DC-DC转换器电路包括：高侧和低侧电压切换装置。 开关装置以电路配置耦合，以至少部分地基于另一开关装置的状态向每个开关装置施加控制电压信号。
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公开(公告)号：US06066942A
公开(公告)日：2000-05-23
申请号：US73906
申请日：1998-05-06
申请人： Harold L. Massie , Viktor D. Vogman
发明人： Harold L. Massie , Viktor D. Vogman
CPC分类号： H02M3/1584
摘要： A DC-to-DC converter includes: a first and a second inductor path, the inductor paths being coupled in the converter so as to provide a single voltage output signal during converter operation. An array of switches are coupled so as to control the application of voltage sources to the inductor paths during converter operation. The switches and the array are coupled so that their states are controlled, at least in part, based upon the voltage signal level of the single voltage output signal during converter operation.A method of producing a voltage signal is as follows. One of two voltage sources is applied to an inductor circuit to produce an output voltage signal. The voltage source supplied is switched based, at least in part, on the voltage signal level of the output voltage signal.
摘要翻译： DC-DC转换器包括：第一和第二电感器路径，电感器路径耦合在转换器中，以便在转换器操作期间提供单个电压输出信号。 耦合开关阵列，以便在转换器操作期间控制电压源到电感器路径的应用。 开关和阵列被耦合，使得它们的状态至少部分地基于转换器操作期间的单个电压输出信号的电压信号电平被控制。 产生电压信号的方法如下。 将两个电压源中的一个施加到电感器电路以产生输出电压信号。 至少部分地，所提供的电压源基于输出电压信号的电压信号电平进行开关。
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公开(公告)号：US5650715A
公开(公告)日：1997-07-22
申请号：US633690
申请日：1996-04-19
申请人： Harold L. Massie
发明人： Harold L. Massie
CPC分类号： G05F1/56 , G01R19/04 , H02M2001/0009
摘要： A circuit for detecting peak current pulses on a secondary transformer of a power supply and converting these peak current pulses into a direct current (DC) voltages, which can be used for various purposes such as current limiting or current sharing. A peak detection circuit is coupled to the secondary transformer and is employed to detect a peak current pulse through the secondary transformer. A sample and hold circuit that is coupled to the peak detection circuit samples the current through a current sense transformer. The sample and hold circuit provides the current pulse through the secondary transformer in a direct current voltage representation. The sample and hold circuit includes a storage circuit for storing this direct current voltage representation of the current through the secondary transformer. The sample and hold circuit selectively samples the current through the current transformer in response to a control signal generated by the peak detection circuit.
摘要翻译： 用于检测电源的次级变压器上的峰值电流脉冲并将这些峰值电流脉冲转换为直流（DC）电压的电路，其可用于各种目的，例如限流或电流共享。 峰值检测电路耦合到次级变压器，并用于检测通过次级变压器的峰值电流脉冲。 耦合到峰值检测电路的采样和保持电路通过电流检测变压器对电流进行采样。 采样和保持电路以直流电压表示提供通过次级变压器的电流脉冲。 采样和保持电路包括用于存储通过次级变压器的电流的直流电压表示的存储电路。 采样和保持电路响应于由峰值检测电路产生的控制信号选择性地采样通过电流互感器的电流。
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公开(公告)号：US5623198A
公开(公告)日：1997-04-22
申请号：US576465
申请日：1995-12-21
申请人： Harold L. Massie , G. Mark Johnston
发明人： Harold L. Massie , G. Mark Johnston
CPC分类号： G05F1/575
摘要： A switching regulator circuit comprises a drive circuit, a switching transistor, an output stage and a pre-drive circuit that are coupled in series. The pre-drive circuit is coupled to the drive circuit to apply a pre-drive signal which varies the duty cycle and frequency of a series of drive pulses which activate and deactivate the switching transistor thereby adjusting a voltage of the switching regulator circuit. The pre-drive circuit utilizes a comparator in combination with a hysteresis network to vary the oscillation frequency of the pre-drive signal.
摘要翻译： 开关调节器电路包括串联耦合的驱动电路，开关晶体管，输出级和预驱动电路。 预驱动电路耦合到驱动电路以施加预驱动信号，该预驱动信号改变驱动和去激活开关晶体管的一系列驱动脉冲的占空比和频率，从而调节开关调节器电路的电压。 预驱动电路利用与迟滞网络组合的比较器来改变预驱动信号的振荡频率。
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公开(公告)号：US5534771A
公开(公告)日：1996-07-09
申请号：US184387
申请日：1994-01-21
申请人： Harold L. Massie
发明人： Harold L. Massie
IPC分类号： G05F1/44 , H02M3/155 , H03K17/0412 , H03K17/06
CPC分类号： G05F1/44 , H02M3/155 , H03K17/04123 , H03K17/063
摘要： A high precision DC-DC converter circuit having improved efficiency is disclosed. The DC-DC converter circuit includes a low accuracy switching regulator circuit for driving a switching field effect transistor (FET) on and off. A high accuracy output voltage regulator circuit is inserted into the feedback loop between the output of the DC-DC converter circuit and the sensing input of the switching regulator circuit such that the accuracy of the output voltage regulator circuit primarily determines the precision of the DC-DC converter. The DC-DC converter also includes a quick shut-off circuit coupled to the gate and source of the FET for driving the gate of the FET negative when the FET is switched off such that switching losses are minimized. A second embodiment of the high precision DC-DC converter is used to convert from 5.0 to 3.3 volts. The second embodiment includes a transformer, one winding of which is used as an output inductor. The second winding is used as part of a multiplying bootstrap circuit that approximately triples the 5.0 volt input voltage to drive the gate of an n-channel switching FET. The second embodiment also includes a circuit for extending the duty cycle of the switching regulator in response to a load transient on the output.
摘要翻译： 公开了一种具有提高效率的高精度DC-DC转换器电路。 DC-DC转换器电路包括用于驱动开关场效应晶体管（FET）导通和截止的低精度开关调节器电路。 DC-DC转换器电路的输出与开关稳压器电路的感应输入端之间的反馈回路中插入一个高精度的输出稳压电路，使输出稳压电路的精度主要决定了DC- DC转换器。 DC-DC转换器还包括耦合到FET的栅极和源极的快速切断电路，用于在FET关断时驱动FET负极的栅极，使得开关损耗最小化。 使用高精度DC-DC转换器的第二实施例将其从5.0转换成3.3伏。 第二实施例包括一个变压器，一个绕组用作输出电感器。 第二绕组被用作乘法自举电路的一部分，其大约是5.0伏输入电压的三倍以驱动n沟道开关FET的栅极。 第二实施例还包括用于响应于输出上的负载瞬变而延长开关调节器的占空比的电路。
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公开(公告)号：US6144115A
公开(公告)日：2000-11-07
申请号：US181080
申请日：1998-10-27
CPC分类号： H02J1/10 , Y10T307/549 , Y10T307/696 , Y10T307/702 , Y10T307/76
摘要： A power share distribution system and method. Included are: a plurality of power supplies; an isolator provided for each power supply of the plurality of power supplies for selectively blocking/passing an output power from the power supply; and a controller controlling each isolator for passing an output power of each power supply for a predetermined time, such that different groups (including groups of 1) of the plurality of power supplies supply output power to a load at different times. In a preferred embodiment, the power supplies are more particularly current supplies. Further, in a preferred embodiment, the controller more specifically passes an output current of each current supply such that each current supply supplies current to the load for mutually exclusive times.
摘要翻译： 权力分配制度和方法。 包括：多个电源; 为所述多个电源的每个电源设置隔离器，用于选择性地阻断/传递来自所述电源的输出电力; 以及控制每个隔离器的控制器，用于使每个电源的输出功率传递预定时间，使得多个电源的不同组（包括1组）在不同时间向负载提供输出功率。 在优选实施例中，电源更特别地是电流源。 此外，在优选实施例中，控制器更具体地传递每个电流源的输出电流，使得每个电流源将电流提供给负载用于相互排斥的时间。
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