公开(公告)号：US5917311A

公开(公告)日：1999-06-29

申请号：US27613

申请日：1998-02-23

申请人： A. Paul Brokaw

发明人： A. Paul Brokaw

IPC分类号： G05F1/573 ,  G05F1/575

CPC分类号： G05F1/573 ,  Y10S323/907

摘要： A trimmable voltage regulator feedback network is arranged as a voltage divider: series-connected resistors are connected between the divider tap and the regulator's output voltage and a fixed resistance is connected between the tap and ground. Severable links are connected across at least two resistors above the tap to allow the regulator output voltage to be trimmed in linearly independent increments with each severed link, thereby simplifying the task of determining which links to sever to attain a desired output voltage. A trimmable resistance is inserted between the divider tap and the circuit being driven to enable the impedance of the network to be adjusted. A regulator including the novel feedback network can provide a temperature-compensated output over the full range of selectable output voltages.

摘要翻译： 可调节的电压调节器反馈网络被布置为分压器：串联电阻器连接在分压器抽头和调节器的输出电压之间，并且固定电阻连接在分接头和接地之间。 可分离的链路跨接在抽头上方的至少两个电阻器，以允许调节器输出电压以每个切断的链路以线性独立的增量进行修整，从而简化了确定哪个链接以获得期望的输出电压的任务。 在分压器抽头和被驱动的电路之间插入可调整电阻，以使网络的阻抗得以调整。 包括新型反馈网络的调节器可以在可选输出电压的全范围内提供温度补偿输出。

公开(公告)号：US5892647A

公开(公告)日：1999-04-06

申请号：US90259

申请日：1998-06-04

申请人： Kimiyoshi Mizoe

发明人： Kimiyoshi Mizoe

IPC分类号： G01R19/165 ,  G05F1/573 ,  G05F3/26 ,  H02H3/08

CPC分类号： G05F1/573 ,  G05F3/262

摘要： An overcurrent detection circuit detects an overcurrent in a current path accurately and sensitively. The overcurrent detection circuit includes a first resistance element connected between first input and output terminals of the current path; a second resistance element connected to the first input terminal; a differential amplifying device connected to the first output terminal and the second resistance element; and a proportional-current output device connected to the second resistance element in series and to an output terminal of the differential amplifying device. The proportional-current output device receives an output signal from the differential amplifying device to output a proportional current with a magnitude proportional to a current flowing through the first resistance element. A current monitor device is connected to the proportional-current output device for monitoring the proportional current outputted from the proportional-current output device to detect an overcurrent flowing through the first resistance element.

摘要翻译： 过电流检测电路能够准确，灵敏地检测电流路径中的过电流。 过电流检测电路包括连接在电流路径的第一输入和输出端之间的第一电阻元件; 连接到第一输入端的第二电阻元件; 连接到所述第一输出端子和所述第二电阻元件的差分放大装置; 以及与所述第二电阻元件串联连接的差动放大装置的输出端的比例电流输出装置。 比例电流输出装置接收来自差分放大装置的输出信号，以输出与流过第一电阻元件的电流成正比的幅度的比例电流。 电流监视装置连接到比例电流输出装置，用于监视从比例电流输出装置输出的比例电流，以检测流过第一电阻元件的过电流。

公开(公告)号：US5680035A

公开(公告)日：1997-10-21

申请号：US611056

申请日：1996-03-05

申请人： Neerman Haim ,  Niv Nehemia

发明人： Neerman Haim ,  Niv Nehemia

IPC分类号： G05F1/573

CPC分类号： G05F1/573

摘要： This invention discloses an active electrical current filter including an N-channel FET controller coupled in series along a positive electrical line between an electrical power input and an electrical power output having voltages within a given range, apparatus for providing a driving voltage to the FET controller, the driving voltage being in excess of the voltages within said given range, and a differential voltage sensor, which senses the difference between the voltages at the filter input and output and whose output governs the driving voltage supplied to the FET controller, the active electrical filter exhibiting a voltage drop of less than one volt.

摘要翻译： 本发明公开了一种有源电流滤波器，包括一个N沟道场效应晶体管控制器，该N沟道场效应晶体管控制器沿着一个正电线串联连接在一个电源输入端和一个具有给定范围内电压的电功率输出之间，用于向FET控制器提供驱动电压 所述驱动电压超过所述给定范围内的电压;以及差分电压传感器，其感测所述滤波器输入和输出处的电压之间的差异，并且其输出控制提供给所述FET控制器的驱动电压，所述有源电 滤波器呈现小于1伏特的电压降。

公开(公告)号：US5587649A

公开(公告)日：1996-12-24

申请号：US316678

申请日：1994-09-30

申请人： Scott M. Garrett

发明人： Scott M. Garrett

IPC分类号： G05F1/573

CPC分类号： G05F1/573

摘要： A battery pack (10) includes a circuit (14) for assuring that a device (16) connected to the battery pack performs in a manner consistent with design requirements, while not exceeding certain thresholds for safety in volatile environments. The battery pack (10) includes a circuit (14) which matches performance requirements with the overall temperature likely to be generated by the device (16).

摘要翻译： 电池组（10）包括用于确保连接到电池组件的装置（16）以符合设计要求的方式执行的电路（14），而不超过在易失性环境中的安全性的某些阈值。 电池组（10）包括电路（14），其将性能要求与可能由器件（16）产生的总体温度相匹配。

公开(公告)号：US5559424A

公开(公告)日：1996-09-24

申请号：US326408

申请日：1994-10-20

申请人： Robert S. Wrathall ,  Steven J. Franck

发明人： Robert S. Wrathall ,  Steven J. Franck

IPC分类号： G05F3/20 ,  G05F3/26 ,  G05F1/573

CPC分类号： G05F3/20 ,  G05F3/267 ,  Y10S323/907

摘要： The preferred embodiment voltage regulator exhibits improved stability by offsetting changes in the output impedance of the regulator due to changes in load current. This compensation occurs virtually instantaneously with a change in load current. This enables an output capacitor to be selected primarily based upon filtering requirements rather than on frequency compensation requirements. Also in the preferred embodiment, a depletion mode pass transistor is used as the output transistor. A PMOS transistor on/off switch is connected between the source of the pass transistor and the output terminal of the regulator to effectively turn the regulator on or off without shutting down the depletion mode pass transistor. This avoids the need to form a negative supply voltage generator. An improved band gap voltage reference generator is also described which introduces a beta correction factor into the output voltage which offsets changes in beta due to process variations and other conditions. Thus, the output voltage of the reference generator is not affected by variations in the beta of transistors forming the reference generator.

摘要翻译： 优选实施例电压调节器通过抵消由于负载电流的变化而导致的调节器的输出阻抗的变化而显示出改进的稳定性。 随着负载电流的变化，这种补偿几乎立即发生。 这使得能够主要基于滤波要求而不是频率补偿要求来选择输出电容器。 同样在优选实施例中，耗尽型传输晶体管用作输出晶体管。 PMOS晶体管导通/截止开关连接在传输晶体管的源极和调节器的输出端之间，以有效地打开或关闭稳压器，而不关闭耗尽型传输晶体管。 这避免了形成负电源电压发生器的需要。 还描述了改进的带隙电压参考发生器，其将beta校正因子引入输出电压，其抵消由于过程变化和其它条件引起的β变化。 因此，参考发生器的输出电压不受形成参考发生器的晶体管的β的变化的影响。

公开(公告)号：US5355298A

公开(公告)日：1994-10-11

申请号：US99326

申请日：1993-07-30

申请人： Nagataka Seki

发明人： Nagataka Seki

IPC分类号： H02M1/16 ,  G05F1/573 ,  H02H7/122 ,  H02M7/48 ,  H02M7/515 ,  H02M7/537

CPC分类号： H02H7/1225 ,  G05F1/573 ,  H02M7/48

摘要： A conversion apparatus including a plurality of high-speed switching devices, each being operable in latch type operation and non-latch type operation and a power source for supplying a first current to the high-speed switching devices, thereby forming a current path of the high-speed switching devices. The high-speed switching device is turned off after changeover from the latch type operation to the non-latch type operation. The conversion apparatus further includes a current regulation circuit provided in the current path for regulating a second current flowing through the current regulation circuit after the second current has reached a prescribed value. In case of overcurrent malfunction, the high-speed switching device is changed from the latch type operation to the non-latch type operation, and then is caused to be turned off while the current regulation circuit regulates the second current.

摘要翻译： 一种包括多个高速开关装置的转换装置，每个高速开关装置均可在闩锁型操作和非闩锁型操作中操作，以及用于向高速开关装置提供第一电流的电源，从而形成电流路径 高速交换设备。 在从锁存型操作切换到非闩锁型操作之后，高速开关装置被关闭。 转换装置还包括电流调节电路，其设置在电流路径中，用于在第二电流达到规定值之后调节流过电流调节电路的第二电流。 在过电流故障的情况下，高速开关器件从锁存器类型操作变为非锁存型操作，然后在电流调节电路调节第二电流时被关断。

公开(公告)号：US5334928A

公开(公告)日：1994-08-02

申请号：US98461

申请日：1993-07-27

申请人： Robert C. Dobkin ,  Carl T. Nelson ,  Dennis P. O'Neill

发明人： Robert C. Dobkin ,  Carl T. Nelson ,  Dennis P. O'Neill

IPC分类号： G05F1/56 ,  G05F1/573 ,  G05F1/575

CPC分类号： G05F1/573 ,  G05F1/56

摘要： A three terminal control circuit for a low dropout voltage regulator having a PNP pass transistor is provided. The control circuit is capable of pulling the base drive point down to a voltage of 3.0 volts or less to permit a current limiting resistor to be inserted between the base drive point and the base of the PNP pass transistor. The control circuit includes a pair of small-valued capacitors for providing stable operation with different output capacitors. The control circuit can also be used with p-channel FET pass transistors.

摘要翻译： 提供一种具有PNP传输晶体管的低压差稳压器的三端控制电路。 控制电路能够将基极驱动点拉低至3.0伏或更小的电压，以允许限流电阻器插入在PNP传输晶体管的基极驱动点和基极之间。 该控制电路包括一对小值电容器，用于提供与不同输出电容器的稳定操作。 控制电路也可以与p沟道FET传输晶体管一起使用。

公开(公告)号：US5177429A

公开(公告)日：1993-01-05

申请号：US699492

申请日：1991-05-14

申请人： Yutaka Eki

发明人： Yutaka Eki

IPC分类号： G05F1/10 ,  G05F1/56 ,  G05F1/573

CPC分类号： G05F1/573

摘要： A series type d.c. power source circuit having a comparator for comparing a voltage detected by a current detector with a reference voltage and generating an overcurrent detection signal; and a controller connected in series with a power source line for controlling a d.c. output and executing an overcurrent protection operation, wherein one of a d.c. output division voltage and an output voltage and an oscillator circuit is mainly used as the reference voltage of the comparator, and the output voltage of the oscillator circuit is used during the overcurrent protection operation.

摘要翻译： 一系列类型 电源电路，具有用于将由电流检测器检测的电压与参考电压进行比较的比较器，并产生过电流检测信号; 以及与用于控制直流电源的电源线串联连接的控制器。 输出并执行过电流保护操作，其中一个直流 输出分压，输出电压和振荡电路主要用作比较器的参考电压，在过电流保护操作期间使用振荡电路的输出电压。

公开(公告)号：US5124616A

公开(公告)日：1992-06-23

申请号：US608941

申请日：1990-11-05

申请人： Stanley Wrzesinski

发明人： Stanley Wrzesinski

IPC分类号： B60Q11/00 ,  G05F1/573 ,  H05B37/03 ,  H05B39/02 ,  H05B39/04

CPC分类号： G05F1/573 ,  B60Q11/00 ,  H05B37/03 ,  H05B39/02 ,  H05B39/047 ,  Y10S323/908

摘要： A drive circuit for driving a capacitive load (4) and for producing a signal (FIG. 2b, 3b, 4b, 5b) indicative of the condition of the load, the circuit comprising: a FET (26) applying current to the load; a resistance (30) sensing the level of the applied current; a differential amplifier (32) detecting when the sensed level exceeds a predetermined threshold; and a bipolar transistor producing a control signal (FIG. 2b, 3b, 4b, 5b) to limit the applied current until the load current falls below the threshold, whereby the control signal is a pulse width modulated signal whose pulse width is indicative of the condition of the load.

公开(公告)号：US5045771A

公开(公告)日：1991-09-03

申请号：US362452

申请日：1990-04-21

申请人： Andre Kislovski

发明人： Andre Kislovski

IPC分类号： H02M3/155 ,  G05F1/573 ,  H02H9/02 ,  H02M3/156

CPC分类号： H02M3/1563

摘要： A voltage control regulator features a power switch in the form of a transistor that is normally actuated for a constant switch-on time interval during each variable period interval (T). The type of control required in this case comprises, conventionally, a monostable multivibrator, a controller, and a voltage/frequency converter. The present control system is subordinated to an emergency control circuit which, via a priority loop, intervenes in the control process as soon as the current flowing through the switching transistor threatens to become excessive. This emergency control unit thus constitutes a predictive type of control that employs knowledge of the operation of the voltage control regulator and the instantaneous values of the input and output voltages of the voltage control regulator, in order to predict the voltage increase during the period interval (T). Such an arrangement permits the emergency control unit to react very quickly.

摘要翻译： PCT No.PCT / CH88 / 00188 Sec。 371日期：1989年4月21日 102（e）日期1989年7月10日PCT提交1988年10月12日PCT公布。 WO89 / 03608 PCT出版物 日期：1989年4月20日。电压调节器具有晶体管形式的功率开关，该晶体管通常在每个可变周期间隔（T）期间恒定的接通时间间隔被致动。 在这种情况下所需的控制类型通常包括单稳态多谐振荡器，控制器和电压/频率转换器。 本控制系统从属于紧急控制电路，一旦流过开关晶体管的电流有可能变得过大，则通过优先环路介入控制过程。 因此，该应急控制单元构成了采用对电压控制调节器的操作的知识和电压控制调节器的输入和输出电压的瞬时值的预测类型的控制，以便预测在周期间隔期间的电压增加（ T）。 这种布置允许应急控制单元反应非常快。