公开(公告)号：US3842412A

公开(公告)日：1974-10-15

申请号：US30868772

申请日：1972-11-22

申请人： ANALOG DEVICES INC

发明人： SPOFFORD W

IPC分类号： G05F3/22 ,  H03M1/00 ,  H03K13/04

CPC分类号： G05F3/225 ,  H03M1/742

摘要： A monolithic digital-to-analog converter capable of converting a 10-bit digital input signal to a corresponding analog signal, and comprising a series of transistor current sources selectively operable by corresponding transistor buffers. Multiple transistors are used in attenuator arrangements to provide proper binary weighting for certain of the current sources. The outputs of the current sources are regulated to correspond to a reference current produced by a source controlled by a temperaturecompensated voltage based on the stable and repeatable properties of forward-biased silicon junctions. This voltage also controls a bipolar offset current source which subtracts from the output a current equal to one-half of full-scale output, to permit bipolar operation with offset-binary coding.

摘要翻译： 一种单片数模转换器，其能够将10位数字输入信号转换为对应的模拟信号，并且包括由相应的晶体管缓冲器选择性地操作的一系列晶体管电流源。 在衰减器装置中使用多个晶体管来为某些电流源提供适当的二进制加权。 电流源的输出被调节为对应于由基于正向偏置硅结的稳定和可重复性质的由温度补偿电压控制的源产生的参考电流。 该电压还控制双极性偏移电流源，其从输出中减去等于满量程输出的一半的电流，以允许具有偏移二进制编码的双极性操作。

公开(公告)号：US3825776A

公开(公告)日：1974-07-23

申请号：US31486672

申请日：1972-12-13

申请人： IBM

发明人： JACQUART C

IPC分类号： G05F1/10 ,  G05F3/22 ,  H03K17/66 ,  G05F1/40 ,  G05F3/00

CPC分类号： G05F3/22

摘要： A current generator comprising switchable circuit means for selectively establishing current loops for providing high stable null, and equal but opposite polarity currents dependent only on resistive means.

摘要翻译： 一种电流发生器，包括可切换电路装置，用于选择性地建立用于提供高稳定零点的电流回路，以及仅依赖于电阻装置的相等但相反的极性电流。

公开(公告)号：US3736574A

公开(公告)日：1973-05-29

申请号：US3736574D

申请日：1971-12-30

申请人： IBM

发明人： GERSBACH J

IPC分类号： G11C11/41 ,  G05F3/22 ,  G11C7/00 ,  G11C11/411 ,  G11C11/413 ,  G11C11/414 ,  G11C11/415 ,  G11C11/416 ,  G11C11/40

CPC分类号： G05F3/22 ,  G11C11/4113 ,  G11C11/414 ,  G11C11/415 ,  G11C11/416

摘要： A monolithic memory system for a digital computer comprises an array of monolithic chips arranged in rows. Each chip includes an array of memory cells, associated support circuits, and current reference sources connected to the support circuits. Each of a plurality of power gate drivers has a line connected to the current reference sources of a respective row of chips. One power gate driver is actuated to supply power to the current reference sources of a selected row of chips which includes the selected memory cell to be addressed and the power is uninterruptedly maintained for so long as the successive cells being addressed are within the selected row of chips. When the cell being currently addressed is within a different row of chips, the original power gate driver is deactuated and a new power gate driver is actuated to supply power to the current reference sources of the new row of chips containing the memory cell to be addressed.

摘要翻译： 用于数字计算机的单片存储器系统包括排列成行的单片芯片阵列。 每个芯片包括存储器单元阵列，相关支持电路和连接到支持电路的电流参考源。 多个电源栅极驱动器中的每一个具有连接到相应行芯片的当前参考源的线。 一个电源栅极驱动器被致动以向所选择的芯片行的当前参考源提供电力，其包括要被寻址的所选择的存储器单元，并且功率不间断地维持，只要所寻址的连续单元在所选择的行内 筹码 当当前寻址的单元处于不同的芯片行内时，原始功率栅极驱动器被去激活，并且启动新的功率栅极驱动器以向包含待寻址的存储器单元的新行芯片的当前参考源提供电力 。

公开(公告)号：US3679963A

公开(公告)日：1972-07-25

申请号：US3679963D

申请日：1970-01-30

申请人： MOOTORA INC ,  MOTOROLA INC

发明人： FREE MAURICE G ,  WISSEMAN LEO L

IPC分类号： G05F3/18 ,  G05F3/22 ,  G05F3/26 ,  H03F3/45 ,  G05F1/58

CPC分类号： G05F3/265 ,  G05F3/18 ,  G05F3/222 ,  H03F3/45479 ,  Y10T307/422

摘要： A current supply including matched transistors and diodes in which circulating paths are provided for the increased base currents due to decrease of beta of the transistors caused by neutron radiation and for the photoelectric currents produced in the transistors and diodes due to gamma ray radiation. The flow of current provided by the radiation and gamma hardened current source is adjustable.

摘要翻译： 包括匹配晶体管和二极管的电流源，其中由于由中子辐射引起的晶体管的β降低以及由于伽马射线辐射而在晶体管和二极管中产生的光电流，由此提供了用于增加的基极电流的循环路径。 由辐射和伽马硬化电流源提供的电流可调。

公开(公告)号：US3602799A

公开(公告)日：1971-08-31

申请号：US3602799D

申请日：1970-06-24

申请人： WESTINGHOUSE ELECTRIC CORP

发明人： GUILLEN FRANCISCO J

IPC分类号： G05F1/56 ,  G05F3/22 ,  G05F3/14 ,  H02J1/04

CPC分类号： G05F1/56 ,  G05F3/225 ,  Y10T307/593

摘要： An ultrastable high-speed constant DC current source for generating a precise reference voltage in other apparatus such as a high-speed analogue to digital converter. A continuous constant load current is selectively switched between two current paths, one of which comprises an output load across which said reference voltage is developed. A high-speed digitally controlled driver circuit including a differential amplifier configuration controls the flow of the constant current selectively through one of two hot carrier diodes. The diodes serve as electronic switches from the constant current source which comprises an operational amplifier connected in a feedback loop including a Darlington transistor configuration and controlled by an externally applied input reference voltage and an error signal developed by the flow of said load current across a temperature compensated resistor.

公开(公告)号：US3601687A

公开(公告)日：1971-08-24

申请号：US3601687D

申请日：1970-06-22

申请人： COGAR CORP

发明人： TU GEORGE K

IPC分类号： G05F3/22 ,  G05F1/56

CPC分类号： G05F3/22

摘要： A low-impedance voltage supply for providing a relatively constant reference voltage independent of the magnitude of the current flowing through the source. The circuit includes a transistor whose base is connected to the junction of two resistors in a voltage divider network. The voltage divider network is driven from a diode connected through a resistor to a potential source. The collector of the transistor is connected to another diode which is fed through the same resistor from the potential source.

公开(公告)号：US3567965A

公开(公告)日：1971-03-02

申请号：US3567965D

申请日：1968-12-05

申请人： INT STANDARD ELECTRIC CORP

发明人： WEINERTH HANS ,  BLEHER HARTMUT

IPC分类号： G05F3/18 ,  G05F3/22 ,  H01L27/00 ,  H01L27/02 ,  H01L29/00 ,  H01L17/00

CPC分类号： H01L27/00 ,  G05F3/18 ,  G05F3/225 ,  H01L27/0211 ,  H01L29/00

摘要： This is a temperature compensated zener diode wherein the compensation is provided by having a transistor structure with two base emitter junctions, one operating in forward bias and the other (zener) being reversed biased. This device has a number of these transistor structures cascaded to give the desired zener voltage and temperature compensation. The negative voltage variation with respect to temperature of a forward biased emitter base junction compensates for the positive voltage variation of the zener diode.

公开(公告)号：US3508139A

公开(公告)日：1970-04-21

申请号：US3508139D

申请日：1967-03-14

申请人： WESTERN RESERVE ELECTRONICS IN

发明人： RUMMEL EDWARD W

IPC分类号： G05F3/22 ,  H04M3/30 ,  G05F1/20 ,  H02J13/00 ,  H02M7/18

CPC分类号： H04M3/30 ,  G05F3/227

公开(公告)号：US3089998A

公开(公告)日：1963-05-14

申请号：US80670159

申请日：1959-04-15

申请人： WESTINGHOUSE ELECTRIC CORP

发明人： REUTHER JOHN F

IPC分类号： G05F3/22

CPC分类号： G05F3/225

公开(公告)号：US20230124021A1

公开(公告)日：2023-04-20

申请号：US17853358

申请日：2022-06-29

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Boqiang XIAO ,  Avinash SHREEPATHI BHAT

IPC分类号： G05F3/22

摘要： A bandgap current reference circuit includes a bandgap core circuit and an error amplifier. The bandgap core circuit is configured to generate a zero temperature coefficient bandgap current. The bandgap core circuit includes a bipolar transistor. The bipolar transistor is configured to pass a current that is proportional to absolute temperature (PTAT current). The error amplifier is coupled to the bandgap core circuit and includes a bipolar differential input pair. The bipolar differential input pair is configured to ensure that the PTAT current is flowing in the bipolar transistor.