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公开(公告)号：US06377053B1
公开(公告)日：2002-04-23
申请号：US09028731
申请日：1998-02-24
IPC分类号： G01R3114
CPC分类号： G01R19/16528 , G01R31/025
摘要： The short-circuit detecting device includes a current generator for generating a current (IIN) of predetermined intensity, selectively into or out of the terminal (IN), and a first voltage comparator connected to the terminal (IN) and connected to the current generator in a manner such that the generator generates a current (IIN) in the inward direction and in the outward direction relative to the terminal (IN), respectively, when the voltage between the terminal (IN) and the ground is greater than a first level and less than a second level, respectively. The first level is greater than or equal to the second. The device also includes a second voltage comparator for supplying a first and a second signal, respectively, when the voltage between the terminal (IN) and the ground is close to the supply voltage (Vcc) and close to the ground potential (gnd), respectively, and a processing circuit connected to the second comparator for detecting whether the first or the second signal, respectively, persists for a predetermined period of time. In this case, an output signal (F_Vcc; F_gnd) is supplied which is indicative of a short-circuit of the terminal (IN) to the supply (Vcc) or to ground, respectively.
摘要翻译： 短路检测装置包括用于产生预定强度的电流（IIN）的电流发生器，其选择性地进入或离开端子（IN）;以及第一电压比较器，连接到端子（IN）并连接到电流发生器 以使得当端子（IN）和地面之间的电压大于第一级时，发电机分别相对于端子（IN）在向内方向和向外方向上产生电流（IIN） 并分别低于第二级。 第一级大于或等于第二级。 当端子（IN）和地之间的电压接近电源电压（Vcc）并且接近地电位（gnd）时，该装置还包括分别提供第一和第二信号的第二电压比较器， 以及连接到第二比较器的处理电路，用于分别检测第一或第二信号是否持续预定的时间段。 在这种情况下，提供输出信号（F_Vcc; F_gnd），分别指示端子（IN）与电源（Vcc）或接地的短路。
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公开(公告)号：US5812014A
公开(公告)日：1998-09-22
申请号：US726282
申请日：1996-10-04
CPC分类号： H02M7/217
摘要： A double half-wave rectifier circuit with earth shift using an input differential amplifier and two current mirrors in cascode configuration in such a way that the input current is transferred to the output via one or the other of the current mirrors depending on whether the input signal voltage is greater than or less than an input reference voltage and therefore the current is positive or negative.
摘要翻译： 具有接地移位的双半波整流电路，其使用输入差分放大器和两个共模共栅配置的电流镜，使得根据输入信号是否经由一个或另一个电流镜将输入电流传输到输出端 电压大于或小于输入参考电压，因此电流为正或负。
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公开(公告)号：US5623254A
公开(公告)日：1997-04-22
申请号：US367746
申请日：1995-01-03
IPC分类号： G01R31/02 , H03K17/082 , B60Q1/00
CPC分类号： G01R31/024 , H03K17/0822
摘要： A drive circuit fault detection device comprising a discriminating circuit generating a digital signal, the level of which indicates a fault; and an identifying circuit generating a binary-coded signal indicating the type of fault, i.e. ground shorting of the drive circuit or an open load. The discriminating circuit comprises a resistive network connected to the output of the drive circuit, for generating a voltage indicating correct connection of the load or a fault on the drive circuit and a comparator for comparing the generated voltage with a reference voltage and supplying the digital signal at its output. The identifying circuit comprises a current mirror circuit generating an output voltage having two different logic levels in the event of short circuiting or an open load, respectively, and a combination circuit for generating the binary-coded output signal.
摘要翻译： 一种驱动电路故障检测装置，包括产生数字信号的识别电路，其电平表示故障; 以及识别电路，产生指示故障类型的二进制编码信号，即驱动电路的接地短路或开路负载。 识别电路包括连接到驱动电路的输出的电阻网络，用于产生指示驱动电路上的负载或故障的正确连接的电压以及比较器，用于将产生的电压与参考电压进行比较并提供数字信号 在其产出。 识别电路包括分别在短路或开路负载的情况下产生具有两个不同逻辑电平的输出电压的电流镜电路和用于产生二进制编码的输出信号的组合电路。
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4.发明授权Voltage stabilizer with a very low voltage drop designed to withstand high voltage transients 失效电压稳定器具有非常低的电压降，可承受高电压瞬变
公开(公告)号：US5036269A
公开(公告)日：1991-07-30
申请号：US458373
申请日：1989-12-28
申请人： Bruno Murari , Marco Morelli , Giampietro Maggioni
发明人： Bruno Murari , Marco Morelli , Giampietro Maggioni
CPC分类号： G05F1/571
摘要： A voltage stabilizer with a very low voltage drop includes a series voltage regulator circuit having a first PNP transistor connected to an input terminal of the stabilizer via a second PNP transistor and being connected to ground via a capacitor. The stabilizer has biasing and switching circuits disposed between the input terminal thereof, a base terminal of the second transistor and ground.
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公开(公告)号：US5970785A
公开(公告)日：1999-10-26
申请号：US853163
申请日：1997-05-08
CPC分类号： F02D41/1494
摘要： A circuit comprises a measurement resistor in series with a heater, a detector circuit for providing a signal indicative of the current flowing in the resistor, switching devices for controlling the connection of the heater to a voltage source and the connection of the measurement resistor in the supply circuit comprising the source and the heater, and a control unit arranged to drive the switching devices in a manner such that each time the heater is activated, the measurement resistor is kept disconnected from the supply circuit of the heater for a predetermined period of time and the measurement resistor is then connected in the supply circuit of the heater.
摘要翻译： 电路包括与加热器串联的测量电阻器，用于提供指示在电阻器中流动的电流的信号的检测器电路，用于控制加热器与电压源的连接的开关装置以及测量电阻器的连接 包括源极和加热器的电源电路以及控制单元，其被布置成以每次加热器被激活的方式驱动开关装置，测量电阻器与加热器的电源电路保持断开预定的时间段 然后将测量电阻连接在加热器的供电电路中。
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6.发明授权Method for generating a fault signal in a voltage regulator and corresponding control circuitry for a system voltage regulator 有权用于在电压调节器中产生故障信号的方法和用于系统电压调节器的相应控制电路公开(公告)号：US06803768B2
公开(公告)日：2004-10-12
申请号：US10300662
申请日：2002-11-19
IPC分类号： G01R3102
CPC分类号： H02J7/1461
摘要： A method for generating a fault signal in a system voltage regulator by a phase signal includes detecting the system voltage and phase signal; comparing the system voltage and phase signal with respective fault levels; and generating a fault signal upon either the system voltage or the phase signal falling below the respective fault level of the fault levels. The fault signal generating method also inhibits generating a fault signal using a drive signal of the system voltage regulator. A diagnostic circuit for a system voltage regulator is also disclosed.
摘要翻译： 通过相位信号在系统电压调节器中产生故障信号的方法包括检测系统电压和相位信号; 将系统电压和相位信号与各自的故障电平进行比较; 并且在系统电压或相位信号下降到故障级别的相应故障级别之前产生故障信号。 故障信号产生方法还可以使用系统电压调节器的驱动信号来抑制产生故障信号。 还公开了一种用于系统电压调节器的诊断电路。
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公开(公告)号：US5780995A
公开(公告)日：1998-07-14
申请号：US550690
申请日：1995-10-31
CPC分类号： H02J7/242 , Y02T10/7005
摘要： A circuit for regulating the charging voltage to a battery and connected to the field inductor (IND) of an alternator (ALT) which supplies that voltage. It is connected by a control cable to the battery and comprises an electric path, extending between a terminal for connection to the alternator and ground, which is only activated when the battery voltage drops below a predetermined threshold value. This electric path comprises a switch (TSW) driven from a control circuit (COMP1,T4) which sense the battery voltage, and when activated, the voltage drop across the path is substantially equal to that of the regulated voltage. The control circuit also senses breakage in the battery sensing cable, and ceases driving the alternator when this occurs.
摘要翻译： 用于调节对电池的充电电压并连接到提供该电压的交流发电机（ALT）的励磁电感器（IND）的电路。 它通过控制电缆连接到电池，并且包括在用于连接到交流发电机的接线端子和接地之间延伸的电路，该电路仅在电池电压低于预定阈值时被激活。 该电路包括从感测电池电压的控制电路（COMP1，T4）驱动的开关（TSW），并且当被激活时，路径上的电压降基本上等于调节电压的电压降。 控制电路还检测电池传感电缆的断裂，并在发生这种情况时停止驱动交流发电机。
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8.发明授权Output stage, and automotive regulator, with supply-dependent selection of MOS or bipolar driver 失效输出级和汽车调节器，具有供应选择的MOS或双极驱动器
公开(公告)号：US5541456A
公开(公告)日：1996-07-30
申请号：US259968
申请日：1994-06-14
申请人： Giampietro Maggioni , Marco Morelli
发明人： Giampietro Maggioni , Marco Morelli
CPC分类号： H02P9/08 , H02P2101/45
摘要： The contrasting requirements of low power consumption during operation and ability to function under drastic drops of the supply voltage at start-up of output power stages of an electric system of self-generation and recharge of a storage battery, are satisfied by an output power driving stage composed of a bipolar transistor and a field effect transistor, functionally connected in parallel to each other and having independent control terminals. A control signal is selectably switched either to the base of the bipolar output transistor or to the gate of the field effect output transistor, depending on the level of the supply voltage. A comparator comparing the voltage present on the supply node with a reference voltage controls a selection switch. The low threshold of the bipolar transistor ensures functioning at start-up, while the field effect transistor provides a low power consumption during normal running conditions.
摘要翻译： 通过输出功率驱动来满足运行中的低功耗和在蓄电池的自发电和再充电的输出功率级的启动时的电源电压急剧下降下的功能的对比要求 由双极晶体管和场效应晶体管组成的级，彼此并联并具有独立的控制端子。 取决于电源电压的电平，控制信号可选地切换到双极性输出晶体管的基极或者到场效应输出晶体管的栅极。 比较供电节点上存在的电压与参考电压的比较器控制选择开关。 双极晶体管的低阈值确保启动时的功能，而场效应晶体管在正常运行条件下提供低功耗。
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公开(公告)号：US5341282A
公开(公告)日：1994-08-23
申请号：US865421
申请日：1992-04-08
CPC分类号： H01H47/325 , H02H3/08 , H02H9/047 , Y10T307/878
摘要： An inductive load drive device which has a switch defining an output terminal connectable to an inductive load between the output terminal and a reference potential line is provided. A first current recirculating branch is connectable parallel to the load and a control opens and closes the switch so that the load is supplied with current rising to a first predetermined value in a first increasing phase and falling to a second predetermined value in a first recirculating phase. The device detects a short-circuit between the output terminal of the control device and the reference potential line with a first current sensor for detecting current flow in the first recirculating branch during the first recirculating phase. A fault signaling circuit connected to the first current sensor produces a short-circuit signal in the absence of current in the first recirculating branch during the first recirculating phase.
摘要翻译： 提供一种感性负载驱动装置，其具有限定可连接到输出端子和参考电位线之间的感性负载的输出端子的开关。 第一电流循环分支可平行于负载连接，并且控制器打开和闭合开关，使得负载在第一增加阶段中以上升到第一预定值并在第一再循环阶段中下降到第二预定值 。 该装置利用第一电流传感器检测控制装置的输出端与参考电位线之间的短路，用于检测在第一再循环阶段期间第一再循环分支中的电流。 连接到第一电流传感器的故障信号电路在第一再循环阶段期间在第一再循环分支中没有电流时产生短路信号。
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公开(公告)号：US5001414A
公开(公告)日：1991-03-19
申请号：US440034
申请日：1989-11-21
IPC分类号： H01L27/04 , G05F3/30 , H01L21/822
CPC分类号： G05F3/30 , Y10S323/907
摘要： This voltage reference circuit has high thermal stability and minimal bulk and comprises a transistor defining a base-emitter junction having a voltage drop which varies in a non-linear manner as a function of temperature and resistors connected in series to the junction, the junction and the resistors being interposed between a ground line and the output terminal. A compensation transistor generates a compensation current which varies as a function of temperature so as to produce a voltage drop with a behavior substantially opposite to the previous voltage drop upon reaching the switching on temperature of the transistor.
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