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公开(公告)号：US5811889A
公开(公告)日：1998-09-22
申请号：US613375
申请日：1996-03-11
申请人： Harold L. Massie
发明人： Harold L. Massie
CPC分类号： G06F1/26 , H02J1/10 , Y10T307/505 , Y10T307/826 , Y10T307/937
摘要： A circuit used in combination with a redundant power supply system to electrically disconnect its failed power supplies. The circuit comprises a power FET, a rectifier and filter circuit, a start-up circuit and a shut-down circuit. The rectifier and filter circuit rectifies an input AC waveform and subsequently filters a resultant DC voltage which is subsequently used to supply an output voltage at an output terminal connected to the power FET. In parallel with the rectifier and filter circuit, the start-up circuit is coupled to a gate of the power FET to ramp the voltage supplied to that gate slowly turning on the power FET. Coupled in parallel with the start-up circuit, the shut-down circuit conducts voltage from the gate thereby turning-off the power FET to preclude current from other power supplies of the redundant power supply system to pass current to its failed power supply.
摘要翻译： 与冗余电源系统组合使用的电路，以电断开其故障电源。 该电路包括功率FET，整流器和滤波器电路，启动电路和关断电路。 整流器和滤波器电路对输入AC波形进行整流，并随后对结果的直流电压进行滤波，随后用于在连接到功率FET的输出端子处提供输出电压。 与整流器和滤波器电路并联，启动电路耦合到功率FET的栅极，以缓冲提供给该门的电压，缓慢地导通功率FET。 与启动电路并联的情况下，关断电路从栅极传导电压，从而关断功率FET，以阻止来自冗余电源系统的其他电源的电流将电流传递到其故障电源。
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公开(公告)号：US5777461A
公开(公告)日：1998-07-07
申请号：US799385
申请日：1996-12-31
申请人： Harold L. Massie , G. Mark Johnston
发明人： Harold L. Massie , G. Mark Johnston
CPC分类号： H02M1/38 , H02M3/1588 , H02M3/33561 , Y02B70/1466
摘要： A DC-DC voltage conversion provides a voltage to a processor in a mobile computer system using a high side power FET and a low side power FET, each having a variable gate discharge time dependent on the applied battery voltage. The power FETs are arranged in a synchronous totem pole configuration with a junction point therebetween, coupled between a voltage input terminal and ground, with the junction point coupled to a voltage output terminal. Each of the power FETs is driven by a FET driver, with the driver being coupled to the output of a comparator comparing a reference voltage with the output voltage. To avoid cross-conduction, the high side power FET and the low side power FET are coupled to each other in such a manner that the event of one turning off will turn on the other after a dead time determined by the threshold sense circuit, plus delays of the devices used in the embodiment.
摘要翻译： DC-DC电压转换使用高边功率FET和低边功率FET向移动计算机系统中的处理器提供电压，每个具有取决于施加的电池电压的可变栅极放电时间。 功率FET被布置成同步图腾柱配置，其间具有连接点，耦合在电压输入端子和地之间，其中结点耦合到电压输出端子。 每个功率FET由FET驱动器驱动，驱动器耦合到比较参考电压与输出电压的比较器的输出。 为了避免交叉导通，高边功率FET和低边功率FET以这样的方式彼此耦合，使得在由阈值感测电路确定的死区时间之后，一次关断的事件将在另一个之后导通，另外 在实施例中使用的装置的延迟。
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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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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
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。
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