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    • 1. 发明授权
    • Solid state power controller with overload protection
    • 具有过载保护功能的固态电源控制器
    • US4626954A
    • 1986-12-02
    • US647763
    • 1984-09-06
    • Michael A. DamianoDale L. GassDennis M. KramerRichard F. Schmerda
    • Michael A. DamianoDale L. GassDennis M. KramerRichard F. Schmerda
    • H02H7/12H02M5/293H02H3/00
    • H02M5/293H02H7/12
    • 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.
    • 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。
    • 2. 发明授权
    • Solid state DC power control system
    • 固态直流电源控制系统
    • US4599555A
    • 1986-07-08
    • US693700
    • 1985-01-22
    • Michael A. DamianoDennis M. KramerRichard F. Schmerda
    • Michael A. DamianoDennis M. KramerRichard F. Schmerda
    • H02M3/155H03K17/567H03K17/687
    • H03K17/567
    • A solid state DC power control system having a single N-type or N-channel or majority carrier solid state switching element (Q1) connected to the high side (L) of the power supply for energizing a ground or neutral (V.sub.o) connected load (LD). A voltage level translation circuit (2,2') supplies a floating regulated control voltage to the switching element (Q1) high enough to maintain it turned on even if the voltage at the low side of the switching element (Q1) rises up to or near the supply voltage thereby allowing use of such N-type switching device (Q1) in the high side (L) of the supply. A zener diode (ZD3) limits the gate(G)-to-source(S) voltage to the proper level. A non-inverting drive circuit (10,12) controlled by a logic level signal input element (Q2) controls connection of the high voltage to the switching (Q1) gate (G). A first version uses a DC-DC converter (CON) and a preferred version uses a voltage multiplier (VM) in the voltage level translation, high voltage, gate supply circuit (2,2').
    • 一种具有连接到电源的高侧(L)的单个N型或N沟道或多数载流子固态开关元件(Q1)的固态DC功率控制系统,用于为接地或中性(Vo)连接负载 (LD)。 电压电平转换电路(2,2')向开关元件(Q1)提供足够高的浮动稳压控制电压,以使开关元件(Q1)的低侧的电压上升到 靠近电源电压,从而允许在电源的高侧(L)中使用这种N型开关装置(Q1)。 齐纳二极管(ZD3)将栅极(G)至源极(S)电压限制到适当的电平。 由逻辑电平信号输入元件(Q2)控制的非反相驱动电路(10,12)控制高电压与开关(Q1)栅极(G)的连接。 第一版本使用DC-DC转换器(CON),并且优选版本在电压电平转换,高电压,栅极供应电路(2,2')中使用电压倍增器(VM)。
    • 3. 发明授权
    • Knock detector for internal combustion engine
    • 内燃机检测器
    • US4312214A
    • 1982-01-26
    • US160268
    • 1980-06-17
    • Dennis M. KramerJohn C. Dock
    • Dennis M. KramerJohn C. Dock
    • G01L23/22
    • G01L23/225
    • A knock detector for an internal combustion engine comprises a resonantly tuned knock sensor mounted on the engine, a variable gain amplifier for amplifying the signal from the knock sensor, knock and reference channels which are operatively coupled with the output of the variable gain amplifier to develop respective knock and reference channel signals, and a comparator for comparing the signal of one channel against the signal of the other channel. The gain of the variable gain amplifier, in general, is an inverse function of engine speed. The amplified signal from the variable gain amplifier is gated to a peak detector of the reference channel circuit during absence of any appreciable engine knock to develop a reference signal representing background noise. The knock channel detects peaks of the amplifier output signal, and the comparator compares the two peak detected signals to provide a knock signal when a predetermined relationship between the two is attained.
    • 用于内燃机的爆震检测器包括安装在发动机上的共振调谐的爆震传感器,用于放大来自爆震传感器的信号的可变增益放大器,与可变增益放大器的输出可操作耦合的敲击和参考通道,以产生 相应的敲击和参考通道信号,以及用于将一个通道的信号与另一个通道的信号进行比较的比较器。 通常,可变增益放大器的增益是发动机转速的反函数。 来自可变增益放大器的放大信号在没有任何明显的引擎敲击期间门控到参考通道电路的峰值检测器,以产生表示背景噪声的参考信号。 敲击通道检测放大器输出信号的峰值,并且当达到两者之间的预定关系时,比较器比较两个峰值检测信号以提供爆震信号。
    • 5. 发明授权
    • Electrothermal wire responsive miniature precision current sensor
    • 电热丝响应微型精密电流传感器
    • US4538199A
    • 1985-08-27
    • US513570
    • 1983-07-14
    • Ralph F. BielinskiM. Frank ChaconDennis M. KramerWilliam R. MathiasStanley Schneider
    • Ralph F. BielinskiM. Frank ChaconDennis M. KramerWilliam R. MathiasStanley Schneider
    • H02H5/04
    • H02H5/044
    • A resistance wire sensing overcurrent protection module (CSM) for an electrical supply circuit (SC) having a hot temperature sensing diode (32) mounted at the center portion (8c) of an M-shaped resistance wire (8) connected in the supply circuit and an ambient temperature sensing diode (20) mounted on a substrate (18) supported between the supply terminals (4a-b, 6a-b), both diodes being connected to respective pairs of terminals (12a-b, 10a-b) mounted on a header (18) along with the supply terminals. A cover (46) is mounted on the header and filled with glass micro-balloons (48) to isolate thermally the two diodes. A constant current circuit (49) supplies constant current to the two diodes which operate a differential amplifier (52) having an output proportional to the temperature difference as a measure of supply current. This output trips a Schmitt trigger comparator (54) when the supply current rises to an overload value.
    • 一种用于电源电路(SC)的电阻线检测过电流保护模块(CSM),其具有安装在连接在供电电路中的M形电阻线(8)的中心部分(8c)处的热温度感测二极管(32) 和安装在所述供电端子(4a-b,6a-b)之间的衬底(18)上的环境温度感测二极管(20),两个二极管连接到相应的一对端子(12a-b,10a-b) 与供应端子一起在集管(18)上。 盖(46)安装在集管上并填充有玻璃微球(48),以隔离两个二极管。 恒定电流电路(49)向两个二极管提供恒定电流,这两个二极管操作具有与温度差成比例的输出的差分放大器(52)作为电源电流的量度。 当电源电流上升到过载值时,该输出跳闸施密特触发比较器(54)。