公开(公告)号：US4924113A

公开(公告)日：1990-05-08

申请号：US220712

申请日：1988-07-18

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： G05F3/26 ,  G05F3/30 ,  H03K17/60 ,  H03K17/687

CPC分类号： G05F3/30 ,  G05F3/265

摘要： The accuracy of a bandgap type reference voltage generator which contains bipolar load elements is increased by the use of current compensation circuitry which includes a dummy load element which is the electrical equivalent of the load elements of the generator, an operational amplifier and a current mirror. The operational amplifier and the current mirror act to cause the same potential level (voltage) to be applied to the dummy load element as is applied to the load elements of the generator. A master leg of the current mirror generates a first output current which is identical to the current drawn by the load elements of the generator and provides the current to the dummy load element. A slave leg of the current mirror generates a second output current which is identical to the first output current and which is coupled to the load elements of the generator. Thus current used to drive the load elements of the generator is supplied by the compensation circuitry. This improves the accuracy of the output voltage generated by the reference voltage generator.

摘要翻译： 包含双极性负载元件的带隙型参考电压发生器的精度通过使用电流补偿电路来增加，该电流补偿电路包括作为发电机的负载元件，运算放大器和电流镜的电当量的虚拟负载元件。 运算放大器和电流镜用于使相同的电位电平（电压）施加到发生器的负载元件上的虚拟负载元件。 电流镜的主支路产生与由发生器的负载元件汲取的电流相同的第一输出电流，并将电流提供给虚拟负载元件。 电流镜的从站产生与第一输出电流相同的第二输出电流，并且耦合到发生器的负载元件。 因此，用于驱动发电机的负载元件的电流由补偿电路提供。 这提高了由参考电压发生器产生的输出电压的精度。

公开(公告)号：US4361816A

公开(公告)日：1982-11-30

申请号：US164139

申请日：1980-06-30

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： H03F3/30 ,  H03F3/345 ,  H03F3/45 ,  H03G3/30

CPC分类号： H03F3/3093 ,  H03F3/3088 ,  H03F3/345

摘要： A current mirror amplifier includes first and second transistors connected together at their common electrodes, the first transistor being connected for receiving input signal current at its output electrode, and the control electrodes of the transistors being connected for conditioning the second transistor for conducting a current responsive to the input signal current. Switch means, responsive to a control signal, selectively connects the output electrode of the second transistor to a supply terminal so the current gain between the input signal current and the current in the connection of their common electrodes switches responsive to the control signal.

摘要翻译： 电流镜放大器包括在其公共电极处连接在一起的第一和第二晶体管，第一晶体管被连接用于在其输出电极处接收输入信号电流，并且晶体管的控制电极被连接用于调节第二晶体管以进行电流响应 到输入信号电流。 开关装置，响应于控制信号，选择性地将第二晶体管的输出电极连接到电源端子，使得输入信号电流与其公共电极连接中的电流之间的电流增益响应于控制信号。

公开(公告)号：US4267519A

公开(公告)日：1981-05-12

申请号：US76674

申请日：1979-09-18

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： H03F1/02 ,  H03F3/30 ,  H03F3/34 ,  H03F3/343 ,  H03F3/347 ,  H03F3/45

CPC分类号： H03F3/3066 ,  H03F3/343 ,  H03F3/45076

摘要： Operational transconductance amplifiers are described in which the balanced output currents of a preliminary amplifier stage are applied to the input connections of first and second current amplifiers. A third current amplifier has an input connection to which the output connection of the second current amplifier is connected and has an output connection connected to an output signal terminal to which the output connection of the first current amplifier also connects. At least one of the current amplifiers is a non-linear current amplifier with current gain as between its input and output connections that increases with increasing input current. This increases the capability of the amplifier to source or sink output current without increasing quiescent power consumption.

摘要翻译： 描述了操作跨导放大器，其中初级放大器级的平衡输出电流被施加到第一和第二电流放大器的输入连接。 第三电流放大器具有连接第二电流放大器的输出连接的输入连接，并具有连接到第一电流放大器的输出连接所连接的输出信号端的输出连接。 电流放大器中的至少一个是非线性电流放大器，其输入和输出连接之间的电流增益随着输入电流的增加而增加。 这增加了放大器在不增加静态功耗的情况下输出或吸收输出电流的能力。

公开(公告)号：US4183020A

公开(公告)日：1980-01-08

申请号：US940573

申请日：1978-09-08

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： H03F3/30 ,  G08B17/11 ,  H03F1/52 ,  H03F3/20 ,  H03F3/34 ,  H03F3/345 ,  H03G11/00 ,  G08B17/10 ,  G08B21/00 ,  H03F3/16

CPC分类号： H03F3/345 ,  G08B17/11 ,  H03F1/523 ,  H03G11/002

摘要： A field effect transistor in common-drain amplifier connection is followed in direct-coupled cascade by a bipolar transistor of similar conductivity type, in common-emitter amplifier connection, and without emitter degeneration resistance for limiting its collector current by means of current feedback. Rather the collector current is limited by (a) restricting the range of source voltage variation of the field effect transistor by a threshold conducting means between the source electrode of the field effect transistor and the emitter electrode of the bipolar transistor and (b) inserting a resistance between the source electrode of the field effect transistor and the base electrode of the bipolar transistor to limit the maximum base drive current available to the bipolar transistor when the restricted source voltage of the field effect transistor departs most from the emitter voltage of the bipolar transistor.

摘要翻译： 在共漏极放大器连接中的场效应晶体管在直接耦合级联中遵循类似导电类型的双极型晶体管，在共发射极放大器连接中，并且没有用于通过电流反馈限制其集电极电流的发射极退化电阻。 相反，集电极电流受（a）通过场效应晶体管的源极和双极晶体管的发射极之间的阈值导通装置来限制场效应晶体管的源极电压变化的范围来限制，（b） 当场效应晶体管的源电极和双极晶体管的基极之间的电阻在双极晶体管的发射极电压偏离最大时，限制双极晶体管可用的最大基极驱动电流。 。

公开(公告)号：US4456837A

公开(公告)日：1984-06-26

申请号：US311512

申请日：1981-10-15

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： H03K5/151 ,  H03K5/00 ,  H03K5/01 ,  H03K5/156

CPC分类号： H03K5/1515

摘要： A two phase waveform generator for producing nonoverlapping pulses is designed with a CMOS inverter modified to include a resistor between the drain electrodes of the complementary inverter transistors and three conventional CMOS inverter circuits. The resistor n-type transistor interconnection exhibits a fast negative signal transition but a slower positive transition due to the resistor. This effect tends to shorten the duration of pulses applied to the inverter input. The shortened pulses are applied to a cascade connected pair of inverters to sharpen the waveform and produce a first phase output signal. The resistor-p-type transistor interconnection of the modified inverter exhibits a fast positive signal transition but a slower negative transition. This effect tends to widen pulses applied to the input. The widened pulses are applied to another inverter which complements the widened pulses ultimately generating narrower pulses which comprise a second phase signal. The first and second phase signals are antiphase with no pulse overlap.

摘要翻译： 设计用于产生非重叠脉冲的两相波形发生器，其中CMOS反相器被修改为在互补逆变器晶体管的漏极和三个常规CMOS反相器电路之间包括电阻器。 电阻器n型晶体管互连呈现快速的负信号转变，但由于电阻器而呈现较慢的正向跃迁。 这种效应有可能缩短施加到逆变器输入端的脉冲的持续时间。 将缩短的脉冲施加到级联的反相器对以锐化波形并产生第一相输出信号。 修改后的反相器的电阻-P型晶体管互连呈现快速的正信号转变，但较慢的负转变。 这种效应倾向于加宽施加到输入端的脉冲。 加宽的脉冲被施加到另一个逆变器，该逆变器补充加宽的脉冲，最终产生包括第二相位信号的较窄脉冲。 第一和第二相信号为反相，无脉冲重叠。

公开(公告)号：USRE31263E

公开(公告)日：1983-05-31

申请号：US153630

申请日：1980-05-27

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： H03F3/343 ,  H03F3/04 ,  H03F3/16 ,  H03F3/34 ,  H03F3/345 ,  H03F3/347 ,  H03F3/45

CPC分类号： H03F3/04 ,  H03F3/16 ,  H03F3/345 ,  H03F3/347 ,  H03F3/45076 ,  H03F3/45282 ,  H03F2203/45344 ,  H03F2203/45352 ,  H03F2203/45374 ,  H03F2203/45674

摘要： A composite transistor device is described which comprises a field effect transistor having its transconductance multiplied by the current gain of a current mirror amplifier. The transconductances of such devices can be matched with an accuracy approaching that with which simple field effect transistors can be matched. The higher transconductances of the composite devices make possible a variety of new circuits with distinct performance advantages.

公开(公告)号：US4311967A

公开(公告)日：1982-01-19

申请号：US104372

申请日：1979-12-17

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： H03F1/56 ,  H03F3/04

CPC分类号： H03F1/56

摘要： Compensation for the current flowing in the collector resistance of a transistor is achieved by generating a compensating current of appropriate magnitude and polarity sense, and applying that compensating current to the base of the transistor. To this end, a voltage equivalent to that across the transistor emitter-collector path is applied across a current conductive device representative of the collector resistance. The current therethrough is then proportioned by a current amplifier and applied to the base of the transistor to be compensated.

摘要翻译： 通过产生适当大小和极性感测的补偿电流，并将该补偿电流施加到晶体管的基极来实现在晶体管的集电极电阻中流动的电流的补偿。 为此，将跨过晶体管发射极 - 集电极路径的电压等效于表示集电极电阻的电流传导器件。 然后通过电流放大器对其中的电流进行比例并将其施加到要补偿的晶体管的基极。

公开(公告)号：US4250500A

公开(公告)日：1981-02-10

申请号：US87447

申请日：1979-10-22

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： G08B17/10

CPC分类号： G08B17/10

摘要： In a smoke detector of the type wherein an alarm signal is generated to activate an audible indicator and an oscillator circuit drives a pulsating visual indication of standby readiness, the oscillation frequency increases between its standby and alarm modes. In addition, duty cycle means controls the operative period of the alarm indicator during each cycle of the increased frequency. The smoke detector includes a relaxation oscillator where the oscillation frequency is proportional to the charge rate of a capacitor. Independent current sources are connected through separate switches to change the charge rate of the capacitor and thus the oscillation frequency. Each switch is controlled by signals from a separate detector of a condition which requires that the oscillation frequency be changed, for example, the presence of smoke.

摘要翻译： 在其中产生报警信号以激活可听指示器并且振荡器电路驱动待机准备的脉动视觉指示的类型的烟雾探测器中，振荡频率在其待机和报警模式之间增加。 此外，占空比装置控制在增加频率的每个周期期间报警指示器的操作周期。 烟雾探测器包括振荡器，振荡频率与电容器的充电速率成比例。 独立的电流源通过单独的开关连接，以改变电容器的充电速率，从而改变振荡频率。 每个开关由来自需要改变振荡频率（例如烟雾的存在）的条件的单独检测器的信号控制。

公开(公告)号：US4250464A

公开(公告)日：1981-02-10

申请号：US921268

申请日：1978-07-03

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： G08B17/10 ,  G08B23/00 ,  H03K3/0231 ,  G08B19/00 ,  H03K3/02

CPC分类号： G08B17/10 ,  G08B23/00 ,  H03K3/0231

摘要： In a relaxation oscillator where the oscillation frequency is proportional to the charge rate of a capacitor, independent current sources are connected through separate switches to change the charge rate of the capacitor and thus the oscillation frequency. Each switch is controlled by signals from a separate detector of a condition which requires that the oscillation frequency be changed. An oscillation frequency increase between the standby and alarm modes of a smoke detector is accomplished in one disclosed embodiment and duty cycle means for controlling the operative period of the alarm indicator during each cycle of the increased oscillator frequency is disclosed in a more particular embodiment.

摘要翻译： 在振荡频率与电容器的充电速率成比例的弛豫振荡器中，独立的电流源通过单独的开关连接，以改变电容器的充电速率，从而改变振荡频率。 每个开关由来自需要改变振荡频率的条件的单独检测器的信号控制。 在一个公开的实施例中实现了烟检测器的待机和报警模式之间的振荡频率增加，并且在更具体的实施例中公开了用于在升高的振荡器频率的每个周期期间控制报警指示器的操作周期的占空比装置。

公开(公告)号：US4158178A

公开(公告)日：1979-06-12

申请号：US906005

申请日：1978-05-15

申请人： Otto H. Schade, Jr.

发明人： Otto H. Schade, Jr.

IPC分类号： H03F1/52 ,  H03F3/45

CPC分类号： H03F1/523 ,  H03F1/52

摘要： A circuit for preventing latch up of a differential-input stage, which includes both bipolar and field-effect transistors, without degrading performance including means for clamping the base electrode of the slave transistor of a current mirror whenever the potential thereacross approaches a level sufficient to forward bias the base collector junction thereof to forestall its reaching such level.

摘要翻译： 一种用于防止包括双极和场效应晶体管的差分输入级的锁存的电路，而不降低性能，包括用于夹紧电流镜的从属晶体管的基极的装置，只要其电位达到足以达到 正向偏置其底部集电器结，以防止其达到这样的水平。