公开(公告)号：US5338979A

公开(公告)日：1994-08-16

申请号：US88911

申请日：1993-07-07

申请人： Robert A. Mammano ,  Mark Jordan

发明人： Robert A. Mammano ,  Mark Jordan

IPC分类号： G06F3/00 ,  G06F13/40 ,  H03K17/16 ,  H03K3/01

CPC分类号： H04L25/0298 ,  G06F13/4086 ,  Y02B60/1228 ,  Y02B60/1235

摘要： A controllable bus terminator for providing a switchable termination on a bus having a plurality of conductors, wherein the controllable bus terminator includes a voltage regulator, a plurality of termination networks, each having a first terminal and a second terminal wherein the second terminal of each of the termination networks provides an output terminal of the bus terminator. The bus terminator further includes a plurality of electrically controllable switches, each of the switches having a first port coupled to the voltage regulator and a second port coupled to the first terminal of a corresponding one of the termination networks wherein each of the switches couples the corresponding termination network to the voltage regulator when the corresponding switch is in a first state and wherein each of the switches disconnects the corresponding termination network from the voltage regulator when the corresponding switch is in a second state.

摘要翻译： 一种可控总线终端器，用于在具有多个导体的总线上提供可切换终端，其中所述可控总线终端器包括电压调节器，多个终端网络，每个终端网络具有第一终端和第二终端， 终端网络提供总线终端器的输出端。 总线终端器还包括多个电气可控开关，每个开关具有耦合到电压调节器的第一端口和耦合到相应的终端网络的第一端子的第二端口，其中每个开关将相应的 当相应的开关处于第一状态时，其中每个开关将相应的端接网络与电压调节器断开，当对应的开关处于第二状态时，开关断开网络连接到电压调节器。

公开(公告)号：US5521528A

公开(公告)日：1996-05-28

申请号：US273376

申请日：1994-07-11

申请人： Robert A. Mammano ,  Mark Jordan

发明人： Robert A. Mammano ,  Mark Jordan

IPC分类号： G06F3/00 ,  G06F13/40 ,  H03K17/16 ,  H03K3/01

CPC分类号： H04L25/0298 ,  G06F13/4086 ,  Y02B60/1228 ,  Y02B60/1235

摘要： A controllable bus terminator for providing a switchable termination on a bus having a plurality of conductors, wherein the controllable bus terminator includes a voltage regulator, a plurality of termination networks, each having a first terminal and a second terminal wherein the second terminal of each of the termination networks provides an output terminal of the bus terminator. The bus terminator further includes a plurality of electrically controllable switches, each of the switches having a first port coupled to the voltage regulator and a second port coupled to the first terminal of a corresponding one of the termination networks wherein each of the switches couples the corresponding termination network to the voltage regulator when the corresponding switch is in a first state and wherein each of the switches disconnects the corresponding termination network from the voltage regulator when the corresponding switch is in a second state.

摘要翻译： 一种可控总线终端器，用于在具有多个导体的总线上提供可切换终端，其中所述可控总线终端器包括电压调节器，多个终端网络，每个终端网络具有第一终端和第二终端， 终端网络提供总线终端器的输出端。 总线终端器还包括多个电气可控开关，每个开关具有耦合到电压调节器的第一端口和耦合到相应的终端网络的第一端子的第二端口，其中每个开关将相应的 当相应的开关处于第一状态时，其中每个开关将相应的端接网络与电压调节器断开，当对应的开关处于第二状态时，开关断开网络连接到电压调节器。

公开(公告)号：US5157269A

公开(公告)日：1992-10-20

申请号：US648569

申请日：1991-01-31

申请人： Mark Jordan ,  Robert A. Mammano

发明人： Mark Jordan ,  Robert A. Mammano

IPC分类号： G05F1/59 ,  H02J1/10

CPC分类号： H02J1/10 ,  G05F1/59 ,  Y10T307/406 ,  Y10T307/555 ,  Y10T307/587

摘要： A load current sharing circuit is disclosed that allows multiple independent power modules, either switching or linear, to be connected in a parallel configuration such that each module delivers only its proportionate share of the load current. Each module measures the common output voltage, compares that voltage to an internal reference voltage signal, and generates an error voltage signal to be used as feedback for regulating its output voltage. The internal reference voltage signal is a function of the extent to which the current within each module differs from the current of the module with the highest current. That module functions as the master, and all the other modules act as slaves. Each slave increases its share of the load current so as to asymptotically approach the load current of the master to within a preset offset voltage, while the load current of the master decreases.

摘要翻译： 公开了一种负载电流共享电路，其允许多个独立的功率模块（开关或线性）以并联配置连接，使得每个模块仅提供其负载电流的相应份额。 每个模块测量公共输出电压，将该电压与内部参考电压信号进行比较，并产生用作调节其输出电压的反馈的误差电压信号。 内部参考电压信号是每个模块内的电流与具有最高电流的模块的电流不同的程度的函数。 该模块用作主站，所有其他模块用作从站。 每个从器件增加其负载电流的份额，以便在主器件的负载电流减小的情况下，将主器件的负载电流渐近接近预置的偏移电压。

公开(公告)号：US5272396A

公开(公告)日：1993-12-21

申请号：US755072

申请日：1991-09-05

申请人： Robert A. Mammano ,  Mark Jordan

发明人： Robert A. Mammano ,  Mark Jordan

IPC分类号： G06F3/00 ,  G06F13/40 ,  H03K17/16 ,  H03K3/01

CPC分类号： H04L25/0298 ,  G06F13/4086 ,  Y02B60/1228 ,  Y02B60/1235

摘要： A controllable bus terminator, for providing a switchable termination on a bus having a plurality of conductors, wherein the controllable bus terminator includes a voltage regulator, a plurality of resistive networks each of the resistive networks having a first terminal and a second terminal wherein the second terminal of each of the resistive networks provides an output terminal of the bus terminator. The bus terminator further includes a plurality of electrically controllable switches, each of the switches having a first port coupled to the voltage regulator and a second port coupled to the first terminal of a corresponding one of the resistive networks wherein each of the switches couple the corresponding resistive network to the voltage regulator when the corresponding switch is in a first state and wherein each of the switches disconnect the corresponding resistive network from the voltage regulator when the corresponding switch is in a second state.

公开(公告)号：US5652501A

公开(公告)日：1997-07-29

申请号：US353620

申请日：1994-12-12

申请人： Winthrop H. McClure ,  John A. O'Connor ,  Robert A. Mammano

发明人： Winthrop H. McClure ,  John A. O'Connor ,  Robert A. Mammano

IPC分类号： H02J7/00 ,  G01N27/416

CPC分类号： H02J7/0019 ,  Y10S320/21

摘要： A battery charger/monitor circuit for charging and/or monitoring a plurality of series-connected cells, including a voltage sensor for sensing the voltage across each of the cells to provide a high cell voltage signal proportional to the highest voltage across any of the cells and a low cell voltage signal proportional to the lowest voltage across any of the cells. The circuit is operable in a monitor mode or a charge mode. In the monitor mode, the cells are disconnected from a load if the low cell voltage signal decreases to a first predetermined level. The circuit includes a controller which provides a control signal in response to the high cell voltage signal, the low cell voltage signal and a current sense signal, for controlling the charging of the cells. In the charge mode, the cells receive a constant charge current until the high cell voltage signal reaches a second predetermined level, after which the voltage across the cell charged to the highest voltage is held substantially constant, causing the charge current to be reduced.

摘要翻译： 一种用于对多个串联连接的电池进行充电和/或监视的电池充电器/监视器电路，包括用于感测每个电池两端的电压的电压传感器，以提供与跨越任何电池的最高电压成比例的高电池电压信号 以及与跨任何电池的最低电压成比例的低电池电压信号。 电路在监视模式或充电模式下可操作。 在监视器模式下，如果低电池电压信号降低到第一预定电平，则电池与负载断开。 该电路包括控制器，该控制器响应于高电池电压信号，低电池电压信号和电流检测信号提供控制信号，用于控制电池的充电。 在充电模式中，电池单元接收恒定的充电电流，直到高电池电压信号达到第二预定电平，之后充电至最高电压的电池两端的电压基本保持不变，从而导致充电电流降低。

公开(公告)号：US5359276A

公开(公告)日：1994-10-25

申请号：US61630

申请日：1993-05-12

申请人： Robert A. Mammano

发明人： Robert A. Mammano

IPC分类号： H02M1/00 ,  H02M1/42 ,  G05F1/70

CPC分类号： H02M1/4225 ,  Y02B70/126 ,  Y02P80/112

摘要： A high power factor regulator circuit which includes a variable multiplier, permitting the high power factor regulator circuit to be used with a number of input line voltage levels. In one embodiment a comparator determines the multiplication or gain factor to be applied in a control loop by comparing the rectified AC input voltage to a predetermined threshold value.

摘要翻译： 一种高功率因数调节器电路，其包括可变乘法器，允许高功率因数调节器电路与多个输入线路电压电平一起使用。 在一个实施例中，比较器通过将经整流的AC输入电压与预定阈值进行比较来确定要在控制回路中施加的乘法或增益因子。

公开(公告)号：US4379240A

公开(公告)日：1983-04-05

申请号：US179538

申请日：1980-08-19

申请人： Robert A. Mammano

发明人： Robert A. Mammano

IPC分类号： H03K5/24 ,  H03K7/08

CPC分类号： H03K5/2418 ,  H03K5/2427 ,  H03K7/08

摘要： A pulse width modulation comparator having internal latching and resetting functions. The comparator includes a differential input stage having first and second outputs which are connected to supply first and second transistors in a voltage gain stage, respectively. The first output of the input stage drives both of the transistors of the voltage gain stage. The second output of the input stage is connected to drive an output transistor as well as to supply the second transistor of the voltage gain stage. The output of the output transistor is connected via feedback circuitry to drive the transistors of the voltage gain stage. A shunt transistor forms part of the feedback circuit and serves to divert the feedback signal from the voltage gain stage transistors upon the application of a clock reset pulse.An analog voltage is applied to one input of the input stage and a ramp or triangular waveform is applied to the other input. At the point where the ramp exceeds the analog voltage, the voltage gain transistors are turned on and the second output of the input stage goes low, aided by the voltage gain stage. This causes the output transistor to go high, thereby generating positive feedback to drive the voltage gain transistors, thereby latching the output transistor in a high state. At the end of the ramp period, a clock pulse turns on the shunt transistor so as to remove the feedback current from the voltage gain stage and reset the output transistor to a low level.

摘要翻译： 具有内部锁存和复位功能的脉宽调制比较器。 比较器包括具有第一和第二输出的差分输入级，其分别连接以在电压增益级中提供第一和第二晶体管。 输入级的第一输出驱动电压增益级的两个晶体管。 输入级的第二输出被连接以驱动输出晶体管以及提供电压增益级的第二晶体管。 输出晶体管的输出通过反馈电路连接以驱动电压增益级的晶体管。 分流晶体管构成反馈电路的一部分，并用于在应用时钟复位脉冲时将来自电压增益级晶体管的反馈信号转移。 模拟电压被施加到输入级的一个输入，并且斜坡或三角波形被施加到另一个输入。 在斜坡超过模拟电压的点，电压增益晶体管导通，输入级的第二输出变为低电平，由电压增益级辅助。 这使得输出晶体管变高，从而产生正反馈以驱动电压增益晶体管，从而将输出晶体管锁定在高电平状态。 在斜坡周期结束时，时钟脉冲导通分流晶体管，从而消除来自电压增益级的反馈电流，并将输出晶体管复位到低电平。

公开(公告)号：US5414342A

公开(公告)日：1995-05-09

申请号：US054843

申请日：1993-04-29

申请人： Robert A. Mammano ,  Larry Wofford

发明人： Robert A. Mammano ,  Larry Wofford

IPC分类号： H02M3/335 ,  G05F1/44

CPC分类号： H02M3/33507

摘要： A pulse width modulator voltage feedforward circuit which includes a gating circuit for providing a control signal to a charge circuit which charges an integration circuit with a current proportional to an input voltage. The integration circuit provides an output ramp signal waveform having a slope proportional to the input voltage value. The gating circuit also provide a control signal to a discharge circuit, to thus alternately charge and discharge the integration circuit. The gating circuit insures that a minimum deadtime for a transformer reset will occur regardless of input voltage variations by preventing a fixed frequency signal provided by an oscillator from beginning a new ramp waveform signal period until the integration circuit is discharged to a minimum reference voltage level.

摘要翻译： 一种脉宽调制器电压前馈电路，其包括用于向充电电路提供控制信号的选通电路，该充电电路以与输入电压成正比的电流对积分电路充电。 积分电路提供具有与输入电压值成比例的斜率的输出斜坡信号波形。 选通电路还向放电电路提供控制信号，从而交替地对积分电路进行充电和放电。 选通电路确保通过防止振荡器提供的固定频率信号开始新的斜坡波形信号周期，直到积分电路放电到最小参考电压电平，无论输入电压变化如何，都会发生变压器复位的最小死区时间。

公开(公告)号：US5422562A

公开(公告)日：1995-06-06

申请号：US183720

申请日：1994-01-19

申请人： Robert A. Mammano ,  John A. O'Connor

发明人： Robert A. Mammano ,  John A. O'Connor

IPC分类号： G05F1/44 ,  H02J1/10 ,  H02M3/156 ,  G05F1/56

CPC分类号： G05F1/44 ,  H02J1/10 ,  H02M3/156 ,  H02M2001/0045

摘要： A switching regulator having improved dynamic response to load variations includes a load compensation circuit coupled to the output terminal. The load compensation circuit supplies current to a load coupled to the output terminal when the output voltage is less than a first predetermined level and/or diverts current away from the load when the output voltage is greater than a second predetermined level. The load compensation circuit operates in this manner until the output voltage is between the first and second predetermined levels. The load compensation circuit responds faster to load variations than the switching regulator to accommodate sudden changes in the load demand.

摘要翻译： 具有改善的对负载变化的动态响应的开关调节器包括耦合到输出端子的负载补偿电路。 当输出电压小于第一预定电平时，负载补偿电路向耦合到输出端子的负载提供电流，并且当输出电压大于第二预定电平时，将电流转移离开负载。 负载补偿电路以这种方式工作，直到输出电压在第一和第二预定电平之间。 负载补偿电路响应负载变化比开关稳压器更快，以适应负载需求的突然变化。

公开(公告)号：US06301135B1

公开(公告)日：2001-10-09

申请号：US09475861

申请日：1999-12-30

申请人： Robert A. Mammano ,  Harvey L. Golladay

发明人： Robert A. Mammano ,  Harvey L. Golladay

IPC分类号： H02M3335

CPC分类号： H02M3/33523 ,  H02M1/36

摘要： A primary-side power modulator for an isolated switching-mode power supply operating under secondary-side control comprising a pulse width determining circuit for real-time primary-side adjustment of a PWM control signal received from a secondary-side PWM controller. While accepting pulse width commands from an isolated secondary-side PWM controller, the pulse width determining circuit has the ability to reduce the width of the switching pulse in response to primary-side information. The power modulator may further comprise a start-up circuit for ensuring that the primary-side supply voltage is above a minimum under-voltage lock out threshold, a soft start circuit for controlling the power switch at power-up, a pulse receiver for receiving the PWM control signal generated by the secondary-side PWM controller, and a drive circuit for driving an external solid-state power switch with the adjusted PWM control signal.

摘要翻译： 用于在次级侧控制下工作的隔离开关模式电源的初级侧功率调制器，包括用于从次级侧PWM控制器接收的PWM控制信号的实时初级侧调整的脉冲宽度确定电路。 在从隔离的次级侧PWM控制器接收脉冲宽度命令的同时，脉冲宽度确定电路能够响应于初级侧信息而减小开关脉冲的宽度。 功率调制器还可以包括用于确保初级侧电源电压高于最小欠压锁定阈值的启动电路，用于在上电时控制功率开关的软启动电路，用于接收的脉冲接收器 由二次侧PWM控制器产生的PWM控制信号，以及用于通过调整后的PWM控制信号驱动外部固态电源开关的驱动电路。