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公开(公告)号：US4873453A
公开(公告)日：1989-10-10
申请号：US238447
申请日：1988-10-19
CPC分类号： H02H7/0833 , H02J7/0063 , H02P7/288 , Y10S388/903 , Y10T307/74 , Y10T307/858
摘要： A controller for a batter-drive DC motor controls the average motor current by switching a series-connected FET on and off with a pulse-width-modulated gate signal. Motor speed is changed by chaning the duty cycle of the signl, which is generated by an oscillator. An undervoltage protection circuit senses the battery voltage and compares it with a reference system that has hysteresis. An overload protection circuit senses the motor current, integrates the sensed signal, and comprares the result with a Zener reference diode that is connected in an amplifier circuit for positive feedback. The oscillators's pulse-width-modulated output, the undervoltage protection circuits's output, and the overload protection circuit's output are input to a "NOR" Logic gate, whose output drives the gate of the FET.
摘要翻译： 电池驱动直流电动机的控制器通过用脉冲宽度调制的门信号切换串联连接的FET来控制平均电动机电流。 通过改变由振荡器产生的sign1的占空比来改变电机速度。 欠压保护电路检测电池电压，并将其与具有迟滞的参考系进行比较。 过载保护电路检测电动机电流，对感测信号进行积分，并用连接在放大器电路中用于正反馈的齐纳二极管来比较结果。 振荡器的脉冲宽度调制输出，欠压保护电路的输出和过载保护电路的输出输入到“NOR”逻辑门，其输出驱动FET的栅极。
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公开(公告)号：US4851743A
公开(公告)日：1989-07-25
申请号：US114348
申请日：1987-10-27
CPC分类号： H02H7/0833 , H02J7/0063 , H02P7/288 , Y10S388/90 , Y10S388/903 , Y10S388/91 , Y10S388/937
摘要： A controller for a battery-driven DC motor controls the average motor current by switching a series-connected FET on and off with a pulse-width-modulated gate signal. Motor speed is changed by changing the duty cycle of the signal, which is generated by an oscillator. An undervoltage protection circuit senses the battery voltage and compares it with a reference system that has hysteresis. An overload protection circuit senses the motor current, integrates the sensed signal, and compares the result with a Zener reference diode that is connected in an amplifier circuit for positive feedback. The oscillator's pulse-width-modulated output, the undervoltage protection circuit's output, and the overload protection circuit's output are input to a "NOR" logic gate, whose output drives the gate of the FET.
摘要翻译： 用于电池驱动的直流电动机的控制器通过用脉冲宽度调制的栅极信号切换串联连接的FET来控制平均电动机电流。 通过改变由振荡器产生的信号的占空比来改变电机速度。 欠压保护电路检测电池电压，并将其与具有迟滞的参考系进行比较。 过载保护电路检测电动机电流，对感测信号进行积分，并将结果与连接在放大器电路中用于正反馈的齐纳二极管进行比较。 振荡器的脉冲宽度调制输出，欠压保护电路的输出和过载保护电路的输出输入到“NOR”逻辑门，其输出驱动FET的栅极。
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公开(公告)号：US4626954A
公开(公告)日：1986-12-02
申请号：US647763
申请日：1984-09-06
摘要： A power controller with overload protection having an alternating current source (AC) connected through power lines (L1, L2) and a pair of power switching devices (FET1, FET2) and a current sensor resistance shunt (SH) in series to a load (LD). A line-derived control power supply circuit (LDS) is connected through one of the power switching devices (FET1) to the lower line (L1, L2) such that the control power supply current does not flow through the shunt (SH) or the load (LD). Close and open commands are applied from a control switch (CSW) through a threshold detector (DT) and a logic circuit (LG1) to operate a latch (LCH) that turns the power switching devices (FET1, FET2) on and off under the clocking control of a zero voltage detector (ZVD) and a zero current detector (ZCD) and the gating control of a minimum current circuit (MCC). An overload circuit (AVC, ITC, TTC) provides instantaneous trip of the latch on rupture current or timed trip of the latch on smaller overloads. Opto-isolated indicators (SS, ST) indicate trip conditions and loss of line voltage conditions as well as whether the load current is above or below a minimum current value which is a current level adequate for operation of the control system.
摘要翻译： 具有过载保护的电力控制器具有通过电力线（L1，L2）和一对功率开关装置（FET1，FET2）和与负载串联的电流传感器电阻分流（SH）连接的交流电源（AC） LD）。 线路控制电源电路（LDS）通过功率开关器件（FET1）之一连接到下线（L1，L2），使得控制电源电流不流过分流器（SH）或 负载（LD）。 从控制开关（CSW）通过阈值检测器（DT）和逻辑电路（LG1）施加闭合和打开的命令，以操作锁存器（LCH），该锁存器（LCH）在下面的电源开关器件（FET1，FET2） 零电压检测器（ZVD）和零电流检测器（ZCD）的时钟控制和最小电流电路（MCC）的门控控制。 过载电路（AVC，ITC，TTC）在较小的过载情况下，提供闩锁对断路电流或定时跳闸的瞬时跳闸。 光电隔离指示器（SS，ST）指示跳闸条件和线路电压条件的损失，以及负载电流是否高于或低于最小电流值，该最小电流值是适用于控制系统操作的电流水平。
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公开(公告)号：US4616305A
公开(公告)日：1986-10-07
申请号：US700843
申请日：1985-02-11
IPC分类号： H02M7/5387 , H02M7/538
CPC分类号： H02M7/5387
摘要： A power MOSFET reversing H-drive system having a first pair of N-channel and P-channel MOSFETs (Q1,Q2) connected in series with a load (LD1,LD2) to a power supply source (T1) and a second like pair of N-channel and P-channel MOSFETs (Q3,Q4) connected in series with the load (LD1,LD2) to the source (T1), each pair having a resistance voltage divider (R1-R2, R5-R6) for providing the P-channel MOSFET (Q1,Q3) with a different voltage level gate signal from the logic level input signal by which the N-channel MOSFET (Q2,Q4) is gated, an overvoltage protector (Z1,Z2) allowing extension of the supply voltage (T1) range under which the system is operable, and the on-state resistances and the flyback current capability of the intrinsic diodes (ID1-ID4) being matched to the size of the load to be driven.
摘要翻译： 功率MOSFET反向H驱动系统，其具有与负载（LD1，LD2）串联连接到电源（T1）和第二类似对的第一对N沟道和P沟道MOSFET（Q1，Q2） 与负载（LD1，LD2）串联连接到源极（T1）的N沟道和P沟道MOSFET（Q3，Q4），每对具有电阻分压器（R1-R2，R5-R6），用于提供 具有与N沟道MOSFET（Q2，Q4）选通的逻辑电平输入信号不同的电压电平门信号的P沟道MOSFET（Q1，Q3），允许扩展N沟道MOSFET（Q2，Q4）的过电压保护器 电源电压（T1）范围，本体二极管（ID1-ID4）的导通电阻和反激电流能力与要驱动的负载的大小相匹配。
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公开(公告)号：US4945445A
公开(公告)日：1990-07-31
申请号：US251671
申请日：1988-09-29
IPC分类号： G01R1/20 , H02H3/087 , H03K17/08 , H03K17/082
CPC分类号： G01R1/203 , H01L24/48 , H01L24/49 , H02H3/087 , H03K17/0822 , H01L2224/48091 , H01L2224/48227 , H01L2224/48472 , H01L2224/4911 , H01L2224/49112 , H01L2224/49426 , H01L2924/00014 , H01L2924/1305 , H01L2924/13091 , H01L2924/14 , H01L2924/15747 , H01L2924/15787 , H01L2924/30107 , H03K2017/0806
摘要： A current sense circuit (100) includes a semiconductor power switch such as a MOSFET (102) having a source metallization contact pad (14) with a conductor jumper bond wire (106) directly connected thereto in the MOSFET module housing (104), which bond wire is connected to a source terminal lead frame within the module, which lead frame extends externally of the module for connection to a load (22) and load voltage (24). The current sense circuitry includes amplifier circuitry (150, 168) having first and second inputs (122, 124) connected to the source bond wire (106) at spaced points (126, 128) along the bond wire within the module housing (104) without insertion of additional series shunt resistance in the bond wire (106) between such points (126, 128), and sensing current flow through the bond wire (106) by sensing voltage between such points (126, 128) and amplifying such voltage. A comparator (218) compares the amplified voltage against a reference voltage (226) and generates an output signal ( 232) when the amplified voltage exceeds the reference voltage by a given amount. The output signal disables gate drive to the MOSFET. The speed of the gate drive signal is improved by providing a separate gate return jumper bond wire to the MOSFET source. Another comparator (242) compares thermistor (238) voltage, measuring MOSFET temperature, against a reference voltage (246) and generates an output signal (260) which disables gate drive to the MOSFET when the latter's temperature exceeds a given level, to provide overtemperature protection in combination with overcurrent protection.
摘要翻译： 电流感测电路（100）包括半导体功率开关，例如具有源极金属化接触焊盘（14）的MOSFET（102），在MOSFET模块外壳（104）中与导体跳线接合线（106）直接连接， 接合线连接到模块内的源极端子引线框架，该引线框架从模块外部延伸以连接到负载（22）和负载电压（24）。 电流感测电路包括放大器电路（150,168），该放大器电路具有沿着模块外壳（104）内的接合线的间隔点（126,128）处连接到源极接合线（106）的第一和第二输入端（122,124） 而不在这些点（126,128）之间的接合线（106）中插入额外的串联分流电阻，并且通过感测这些点（126,128）之间的电压并且放大这种电压来感测通过接合线（106）的电流。 比较器（218）将放大的电压与参考电压（226）进行比较，并且当放大的电压超过参考电压给定量时产生输出信号（232）。 输出信号禁止MOSFET驱动MOSFET。 通过向MOSFET源提供单独的栅极返回跳线接合线来提高栅极驱动信号的速度。 另一个比较器（242）将热敏电阻（238）的电压（测量MOSFET温度）与参考电压（246）进行比较，并产生一个输出信号（260），当输出信号的温度超过给定的电平时，该输出信号禁止对MOSFET的栅极驱动，以提供过温 保护与过流保护相结合。
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6.发明申请公开(公告)号：US20110080685A1
公开(公告)日：2011-04-07
申请号：US12572209
申请日：2009-10-01
IPC分类号： H01H47/22
CPC分类号： H01H71/1054 , H01H35/14 , H01H47/002 , H01H71/2463 , H01H83/12
摘要： Electrically assisted safing of a solenoid linear actuator to provide shock tolerance is provided for a solenoid actuator, the actuator having an armature and at least one electromagnetic inductive coil. A controller, receiving an output from a motion sensor, adjusts an electrical power input to the electromagnetic inductive coil. When the output of the motion sensor indicates onset of an environmental transient exceeding a predetermined threshold of intensity, the controller adjusts the electrical power input such that an electromagnetic field generated by the coil is sufficient to restrain the armature in a desired position during the environmental transient.
摘要翻译： 为螺线管致动器提供电磁线性致动器的电辅助保护以提供抗冲击能力，致动器具有电枢和至少一个电磁感应线圈。 接收来自运动传感器的输出的控制器调节输入到电磁感应线圈的电力。 当运动传感器的输出指示超过预定的强度阈值的环境瞬变的开始时，控制器调节电力输入，使得线圈产生的电磁场足以在环境瞬变期间将电枢限制在期望的位置 。
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7.发明授权DC or AC solid state switch with improved line-derived control circuit power supply 失效DC或AC固态开关，具有改进的线路导出控制电路电源
公开(公告)号：US4649302A
公开(公告)日：1987-03-10
申请号：US870661
申请日：1986-06-02
IPC分类号： H03K17/687 , H03K17/785 , H03K17/79
CPC分类号： H03K17/6874 , H03K17/785 , H03K17/79
摘要： A solid state switch (SS) for controlling a load (1) supplied from either an alternating current (AC) or a direct current (DC) power supply line (L1, L2) having a pair of solid state devices (FET1, FET2) for controlling energization of the load and a common control circuit (CC) therefore which includes a diode isolated, capacitive-reactively coupled, line-derived power supply circuit (PSC) for the common control circuit and an opto-isolated logic signal input circuit (ISO) such power supply circuit effectively eliminating the need for transformers or the line.
摘要翻译： 一种用于控制从具有一对固态器件（FET1，FET2）的交流（AC）或直流（DC）电源线（L1，L2）提供的负载（1）的固态开关（SS） 用于控制负载的通电以及公共控制电路（CC），其包括用于公共控制电路的二极管隔离，电容 - 反应耦合的线路导电电源电路（PSC）和光隔离逻辑信号输入电路 ISO）这样的电源电路有效地消除了对变压器或线路的需要。
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公开(公告)号：US4638226A
公开(公告)日：1987-01-20
申请号：US699522
申请日：1985-02-07
CPC分类号： H02P25/14 , Y10S323/901
摘要： A motor (M) supplied by AC full-wave voltage is controlled by a triac (Q2) under the control of a double-time constant triggering circuit which has a speed setting branch (R3-C2) connected at the triac (Q2) side of the motor (M) and the other time constant branch (R1-C1) connected at the supply side of the motor (M) to provide a feedback function as well as a first time constant. A unidirectional diode (D1) is incorporated in the feedback sensing time constant branch for rendering feedback signals only on alternate half cycles to prevent oscillation and overcompensation of motor speed due to the feedback signal. A soft-start circuit, usable also in half-wave applications, is incorporated in the branch containing adjustable speed setting resistor and comprises a transistor (Q3) having its collector-emitter circuit connected in series with the adjustable resistor (R3). A resistor (R4)-capacitor(C3) time constant circuit is provided to supply time variable current to the base of the transistor (Q3) through a resistor (R5) for causing the transistor (Q3) to gradually conduct, thereby gradually decreasing its resistance and therefore gradually increasing the firing angle of the triac (Q2).
摘要翻译： 由AC全波电压提供的电动机（M）由三端双向可控硅（Q2）控制，在双倍频（AC）侧连接有速度设定分支（R3-C2）的双倍时间常数触发电路的控制下 的电动机（M）和连接在电动机（M）的供给侧的另一时间常数分支（R1-C1），以提供反馈功能以及第一时间常数。 单向二极管（D1）被并入反馈感测时间常数分支中，用于仅在交替的半周期上渲染反馈信号，以防止由于反馈信号引起的电动机速度的振荡和过度补偿。 也可以在半波应用中使用的软启动电路被并入包含可调速度设定电阻器的分支中，并且包括其集电极 - 发射极电路与可调电阻器（R3）串联连接的晶体管（Q3）。 提供电阻器（R4）电容器（C3）时间常数电路，通过电阻器（R5）向晶体管（Q3）的基极提供时间可变电流，以使晶体管（Q3）逐渐导通，从而逐渐减小其 并且因此逐渐增加三端双向tri隙（Q2）的触发角。
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9.发明授权Electrically assisted safing of a linear actuator to provide shock tolerance 有权线性执行器的电子辅助保护，以提供抗冲击能力公开(公告)号：US08264810B2
公开(公告)日：2012-09-11
申请号：US12572209
申请日：2009-10-01
IPC分类号： H01H9/00
CPC分类号： H01H71/1054 , H01H35/14 , H01H47/002 , H01H71/2463 , H01H83/12
摘要： Electrically assisted safing of a solenoid linear actuator to provide shock tolerance is provided for a solenoid actuator, the actuator having an armature and at least one electromagnetic inductive coil. A controller, receiving an output from a motion sensor, adjusts an electrical power input to the electromagnetic inductive coil. When the output of the motion sensor indicates onset of an environmental transient exceeding a predetermined threshold of intensity, the controller adjusts the electrical power input such that an electromagnetic field generated by the coil is sufficient to restrain the armature in a desired position during the environmental transient.
摘要翻译： 为螺线管致动器提供电磁线性致动器的电辅助保护以提供抗冲击能力，致动器具有电枢和至少一个电磁感应线圈。 接收来自运动传感器的输出的控制器调节输入到电磁感应线圈的电力。 当运动传感器的输出指示超过预定的强度阈值的环境瞬变的开始时，控制器调节电力输入，使得线圈产生的电磁场足以在环境瞬变期间将电枢限制在期望的位置 。
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公开(公告)号：US4691197A
公开(公告)日：1987-09-01
申请号：US748106
申请日：1985-06-24
摘要： A solid state switching circuit for energizing a lamp (L) is connected around a fuse (12) across an AC supply for detecting a voltage differential at the opposite sides of a blown fuse and applying that differential across the control (g) and switching (c) electrodes of the solid state switch (SCR) to render the same conductive. Current limiting resistors (RL1 and RL2) are placed in the ends of wire conductors which are to be connected at opposite sides of the fuse, thereby to limit current flowing in the conductors over the entire length of the conductor, minimizing electrical shock hazard upon damage to the conductor.
摘要翻译： 用于激励灯（L）的固态切换电路连接在交流电源上的熔丝（12）周围，用于检测熔断的熔断器的相对侧的电压差，并将该差分跨越控制（g）和开关（ c）固态开关（SCR）的电极，以产生相同的导电性。 电流限制电阻（RL1和RL2）放置在要在熔断器相对侧连接的导线的端部，从而限制导体在导体的整个长度上流动的电流，从而最大限度地减少损坏时的电击危险 到指挥。
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