公开(公告)号：US07091787B2

公开(公告)日：2006-08-15

申请号：US10873902

申请日：2004-06-22

Applicant: Scott C. Willis

Inventor： Scott C. Willis

IPC: H03F3/26

CPC classification number: H03F3/26 ,  H03F3/3083 ,  H03F3/3432 ,  H03F3/45475 ,  H03F2200/447 ,  H03F2203/45288

Abstract: A transconductance amplifier generally limits its current output, and specifically decreases its current output as a function of temperature. The circuit is made up of an operational amplifier and two drive transistors that are connected to a first part of the amplifier circuit and a second part of the amplifier circuit respectively. The first part of the circuit is driven by positive input voltages, and the second part of the circuit is driven by negative input voltages. A transistor in each part of the circuit clamps a voltage, thereby limiting the current output. The negative temperature coefficient of the transistor also decreases the output current as the temperature of the circuit rises.

Abstract translation: 跨导放大器通常限制其电流输出，并且具体地降低其作为温度的函数的电流输出。 电路由运算放大器和两个驱动晶体管组成，分别连接到放大器电路的第一部分和放大器电路的第二部分。 电路的第一部分由正输入电压驱动，电路的第二部分由负输入电压驱动。 电路的每个部分中的晶体管钳位电压，从而限制电流输出。 当电路的温度上升时，晶体管的负温度系数也降低了输出电流。

公开(公告)号：US6127879A

公开(公告)日：2000-10-03

申请号：US30902

申请日：1998-02-26

Applicant: Scott C. Willis ,  Mark J. Jones

Inventor： Scott C. Willis ,  Mark J. Jones

IPC: H02H11/00 ,  H02H3/02

CPC classification number: H02H11/006 ,  Y10T307/729 ,  Y10T307/735

Abstract: A redundant power supply with a number of loads is coupled to each half of the redundant supply by a respectively different MOSFET switch, with logic gates coupling control signals to the MOSFET switches. The control signal is coupled as one input to the logic gate and the output of the logic gate is connected to the MOSFET switch. The other input of the logic gates for a particular power supply is the output of an overvoltage detection circuit whose output is coupled as an input to all the gates for that power supply. The output of the gates opens the MOSFET switches in response to detection of an overvoltage condition.

Abstract translation: 具有多个负载的冗余电源通过分别不同的MOSFET开关耦合到冗余电源的每一半，其逻辑门将控制信号耦合到MOSFET开关。 控制信号作为一个输入耦合到逻辑门，逻辑门的输出端连接到MOSFET开关。 用于特定电源的逻辑门的另一输入是过电压检测电路的输出，其输出作为输入耦合到用于该电源的所有门。 响应于过压状态的检测，门的输出打开MOSFET开关。

公开(公告)号：US06841980B2

公开(公告)日：2005-01-11

申请号：US10458545

申请日：2003-06-10

Applicant: Richard M. Brosh ,  Scott C. Willis

Inventor： Richard M. Brosh ,  Scott C. Willis

IPC: H02M1/00 ,  H02M1/36 ,  G05F1/40

CPC classification number: H02M1/36 ,  G06F1/26 ,  H02M2001/008

Abstract: An apparatus for controlling voltage sequencing for a power supply having multiple switching regulators includes a first switching regulator, a second switching regulator, a first and second resistors, and a first and second transistors. The first switching regulator provides a positive output voltage at a positive voltage output. The second switching regulator provides a negative output voltage at a negative voltage output. When the voltage at a node between the first and second resistors exceeds a predetermined positive voltage, the first transistor turns on to limit the positive output voltage at the positive voltage output. When the voltage at the node between the first and second resistors drops below a predetermined negative voltage, the second transistor turns on to limit the negative output voltage at the negative voltage output.

Abstract translation: 用于控制具有多个开关调节器的电源的电压排序的装置包括第一开关调节器，第二开关调节器，第一和第二电阻器以及第一和第二晶体管。 第一个开关稳压器在正电压输出端提供正输出电压。 第二开关稳压器在负电压输出端提供负输出电压。 当第一和第二电阻之间的节点处的电压超过预定的正电压时，第一晶体管导通以限制正电压输出处的正输出电压。 当第一和第二电阻之间的节点处的电压下降到预定的负电压以下时，第二晶体管导通以限制负电压输出处的负输出电压。

公开(公告)号：US06411068B1

公开(公告)日：2002-06-25

申请号：US09679407

申请日：2000-10-03

Applicant: Scott C. Willis

Inventor： Scott C. Willis

IPC: G05F140

CPC classification number: H02M3/1563

Abstract: A switching regulator connectable to a DC power supply includes a power switch coupled between a first node and an output node and having a control gate. An output voltage feedback circuit is coupled between the output node and a feedback node. A self-oscillating power switch control circuit is coupled to the first node, the feedback node, and the power switch control gate. The power switch control circuit compares a feedback voltage to a reference voltage and provides a first control voltage to the power switch control gate when the reference voltage exceeds the feedback voltage to turn on the power switch to raise the output voltage, and a second control voltage to the power switch control gate when the feedback voltage exceeds the reference voltage to turn off the power switch to lower the output voltage.

Abstract translation: 可连接到DC电源的开关调节器包括耦合在第一节点和输出节点之间并具有控制门的功率开关。 输出电压反馈电路耦合在输出节点和反馈节点之间。 自振功率开关控制电路耦合到第一节点，反馈节点和电源开关控制门。 电源开关控制电路将反馈电压与参考电压进行比较，并且当参考电压超过反馈电压时，向功率开关控制栅极提供第一控制电压，以接通电源开关以提高输出电压，第二控制电压 当反馈电压超过参考电压时关闭电源开关以降低输出电压到电源开关控制门。

公开(公告)号：US5644286A

公开(公告)日：1997-07-01

申请号：US131346

申请日：1993-10-04

Applicant: Richard M. Brosh ,  Charles A. Dennis ,  Scott C. Willis

Inventor： Richard M. Brosh ,  Charles A. Dennis ,  Scott C. Willis

IPC: H04L12/10 ,  H04L12/40 ,  H04L25/02 ,  H04L25/49 ,  H04M11/04

CPC classification number: H04L25/4904 ,  H04L12/10 ,  H04L25/02 ,  H04L25/0266

Abstract: A power bus digital communication system reduces power and signal cabling in a space satellite by transformer coupling digital signal sources to power bus circuits, the transformer coupling devices in all power bus circuits being in parallel relation and electrically isolated from a power supply whereby the digital communication sources may communicate among themselves at a DC power level using a square wave modulated according to a Manchester code.

Abstract translation: 电力总线数字通信系统通过将数字信号源耦合到电力总线电路来减少空间卫星中的电力和信号布线，所有电力总线电路中的变压器耦合装置处于并联关系并与电源电隔离，由此数字通信 源可以使用根据曼彻斯特码调制的方波以直流功率电平在它们之间通信。

公开(公告)号：US5166871A

公开(公告)日：1992-11-24

申请号：US575580

申请日：1990-08-31

Applicant: Lawrence B. Carroll ,  Scott C. Willis

Inventor： Lawrence B. Carroll ,  Scott C. Willis

IPC: G05F1/56 ,  H02M3/155 ,  H02M3/156

CPC classification number: H02M3/156

Abstract: A buck switching regulated power supply having a first feedback loop which is relatively slow, so as to prevent rapid changes in the output current from being reflected to the input current. A second, faster feedback loop having a higher loop gain is provided, and is arranged to take over when the load voltage reaches a predetermined level, so as to prevent the load voltage from rising above such level.

Abstract translation: 具有相对较慢的第一反馈回路的降压开关稳压电源，以防止输出电流的快速变化被反射到输入电流。 提供了具有较高环路增益的第二个更快的反馈环路，并且被布置为在负载电压达到预定电平时接管，以便防止负载电压升高到高于该电平。

公开(公告)号：US06885533B2

公开(公告)日：2005-04-26

申请号：US10282349

申请日：2002-10-29

Applicant: William C. Singleton ,  Scott C. Willis

Inventor： William C. Singleton ,  Scott C. Willis

IPC: G08B17/12 ,  G21J1/00 ,  H01L27/02 ,  H02H5/00

CPC classification number: H02H5/005 ,  H01L27/0248

Abstract: An electromagnetic protection ASIC that includes a high transconductance FET switch array operatively arranged to momentarily short all lines of ingress/egress to ground when triggered by a nuclear event detector.

Abstract translation: 一种电磁保护ASIC，其包括高跨距FET开关阵列，其可操作地布置成在由核事件检测器触发时瞬间将所有入口/出口线路短路到地。

公开(公告)号：US06781257B1

公开(公告)日：2004-08-24

申请号：US10439396

申请日：2003-05-16

Applicant: Scott C. Willis

Inventor： Scott C. Willis

IPC: H02J100

CPC classification number: H02M1/15 ,  H02J1/02 ,  H02M2001/0077 ,  Y10T307/685

Abstract: An apparatus for reducing switching regulator noise from outputs of multiple switching regulators is disclosed. The apparatus includes an operational amplifier, an capacitor, a resistor and a pair of diodes. The switching regulators are connected in series to provide a positive output rail and a negative output rail. The output of the operational amplifier in connected to an inverting input of the operational amplifier and a positive sensing input of one of the switching regulators. The non-inverting input of the operation amplifier is connected to the positive output rail of one of the switching regulator via the capacitor. The resistor is connected between a positive voltage output of one of the switching regulators and the capacitors. The pair of diodes is connected between the positive voltage output of one of the switching regulators and the negative output rail of the switching regulators.

Abstract translation: 公开了一种用于从多个开关调节器的输出减少开关调节器噪声的装置。 该装置包括运算放大器，电容器，电阻器和一对二极管。 开关稳压器串联连接，以提供正输出轨和负输出轨。 运算放大器的输出连接到运算放大器的反相输入端和开关稳压器之一的正感测输入端。 运算放大器的同相输入通过电容连接到开关稳压器之一的正输出导轨。 电阻连接在开关稳压器之一的正电压输出端和电容器之间。 一对二极管连接在开关稳压器之一的正电压输出端和开关稳压器的负输出导轨之间。

公开(公告)号：US06590447B1

公开(公告)日：2003-07-08

申请号：US10115562

申请日：2002-04-02

Applicant: Scott C. Willis

Inventor： Scott C. Willis

IPC: H03F136

CPC classification number: H03F3/3081

Abstract: A bridge amplifier includes a first input node connectable to a power source having an input voltage, a second input node connectable to a control source having a control voltage, and a first and a second output node. A first amplifier module having a gain is coupled between the first and second input nodes and between the first and second output nodes, and a second amplifier module is coupled to the first input node and between the first and second output nodes. The first amplifier module compares a voltage differential between the first and second output nodes to the control voltage and provides an output voltage at the first output node necessary to maintain the voltage differential at a level substantially equal to a product of the control voltage multiplied by the gain. The second amplifier module compares a midpoint voltage level of the input voltage to a midpoint voltage level of the voltage differential and provides and output voltage at the second output node necessary to maintain the voltage differential midpoint level at a level substantially equal to the input voltage midpoint level.

Abstract translation: 桥式放大器包括可连接到具有输入电压的电源的第一输入节点，可连接到具有控制电压的控制源的第二输入节点以及第一和第二输出节点。 具有增益的第一放大器模块耦合在第一和第二输入节点之间以及在第一和第二输出节点之间，并且第二放大器模块耦合到第一输入节点以及第一和第二输出节点之间。 第一放大器模块将​​第一和第二输出节点之间的电压差与控制电压进行比较，并且在第一输出节点处提供必要的输出电压，以将电压差保持在基本上等于控制电压乘以 获得。 第二放大器模块将​​输入电压的中点电压电平与电压差的中点电压电平进行比较，并在第二输出节点处提供和输出电压，以将电压差分中点电平维持在基本等于输入电压中点的电平 水平。

公开(公告)号：US5796274A

公开(公告)日：1998-08-18

申请号：US733080

申请日：1996-10-16

Applicant: Scott C. Willis ,  Mark J. Jones

Inventor： Scott C. Willis ,  Mark J. Jones

IPC: H03K17/16 ,  H03K17/687 ,  H03K17/693 ,  H03K5/22

CPC classification number: H03K17/6874 ,  H03K17/162 ,  H03K17/693 ,  Y10T307/505 ,  Y10T307/62

Abstract: A MOSFET switched, redundant power supply has a back-to-back MOSFET switch connecting respectively each power supply to a single load. Each power supply has a positive and negative gate voltage source. In a specific N-channel MOSFET embodiment, the positive (i.e. on) bias is coupled to each switch via a radiation hardened, redundant analogue switch capable of being driven by, for example, a TTL or CMOS microprocessor signal. The negative (i.e. off) bias is coupled to each via a redundant diode pair. In addition, the gates of the back-to-back MOSFET switch for one power source are also connected to the negative bias of the other power source. In this way the MOSFET switch for a failed power supply will be maintained in an off state by the negative bias provided by the redundant supply.

Abstract translation: MOSFET开关冗余电源具有背对背MOSFET开关，每个电源分别连接到单个负载。 每个电源具有正和负栅极电压源。 在特定的N沟道MOSFET实施例中，正（即导通）偏置通过能够被例如TTL或CMOS微处理器信号驱动的辐射硬化的冗余模拟开关耦合到每个开关。 负（即关）偏压通过冗余二极管对耦合到每个。 此外，用于一个电源的背靠背MOSFET开关的栅极也连接到另一个电源的负偏压。 以这种方式，故障电源的MOSFET开关将由冗余电源提供的负偏压保持在关闭状态。