公开(公告)号：US07276961B2

公开(公告)日：2007-10-02

申请号：US11121260

申请日：2005-05-03

Applicant: Ryohei Kimura

Inventor： Ryohei Kimura

IPC: G06F1/10 ,  H01J19/82

CPC classification number: G05F1/565

Abstract: A constant voltage outputting circuit has a differential amplification circuit having two inputs and an output that is connected to a gate of an output transistor. The output transistor is connected between a power supply voltage and an output terminal and controls an output voltage at the output terminal based on an output of the differential amplification circuit. A voltage division resistor divides the output voltage and applies a divided voltage to one input of the differential amplification circuit, and a reference voltage is applied to the other input thereof. A capacitor connected between the power supply voltage and the gate of the output transistor stabilizes the output voltage when the power supply voltage changes.

Abstract translation: 恒压输出电路具有具有两个输入的差分放大电路和连接到输出晶体管的栅极的输出。 输出晶体管连接在电源电压和输出端之间，并根据差动放大电路的输出控制输出端的输出电压。 分压电阻器分压输出电压，并将分压施加到差分放大电路的一个输入端，另一个输入端施加基准电压。 连接在电源电压和输出晶体管的栅极之间的电容器在电源电压变化时稳定输出电压。

公开(公告)号：US07265459B2

公开(公告)日：2007-09-04

申请号：US10764920

申请日：2004-01-26

Applicant: Andreas Sibrai ,  Josef Niederl

Inventor： Andreas Sibrai ,  Josef Niederl

IPC: H02M3/06 ,  H02M3/18 ,  H01J19/82

CPC classification number: H03H11/1291

Abstract: A voltage controlled variable capacitor, formed of a larger number of fixed capacitor segments and a corresponding number of switching elements, linearly switches on each switching element, one after the other. Several techniques are disclosed to have only a minimum number of switching stages being in the active mode-of-change at any one time with a minimum overlap. The arrangement achieves a nearly linear change of capacitance versus tuning voltage change, while resulting in high Q-factor due to the low RDSon and high RDSoff of the fully switched stages.

Abstract translation: 由多个固定电容器段和相应数量的开关元件形成的电压可变电容器，一个接一个地在每个开关元件上线性地开关。 公开了几种技术，使得只有最小数目的切换级在任何一个时间处于主动变化模式下具有最小重叠。 该装置实现了电容对调谐电压变化的近似线性变化，同时由于全切换级的低RDSon和高RDSoff导致高Q因子。

公开(公告)号：US06163204A

公开(公告)日：2000-12-19

申请号：US203439

申请日：1998-12-01

Applicant: Gueorgui I. Mantov

Inventor： Gueorgui I. Mantov

IPC: G01R19/155 ,  G01R19/25 ,  H02H3/24 ,  H01J19/82

CPC classification number: H02H3/24 ,  G01R19/155 ,  G01R19/2503

Abstract: An AC sensor for measuring voltage and detecting power outages is disclosed. In a disclosed embodiment, the AC sensor includes a plurality of integrators for independently integrating an AC voltage present on the AC power line. It also includes a timing circuit in communication with the integrators. The timing circuit initiates the integration cycles of the integrator such that the integration cycles are staggered in time and such that every two sequentially occurring integration cycles partially overlap.

Abstract translation: 公开了一种用于测量电压和检测断电的AC传感器。 在公开的实施例中，AC传感器包括用于独立地集成存在于AC电力线上的AC电压的多个积分器。 它还包括与积分器通信的定时电路。 定时电路启动积分器的积分周期，使得积分周期在时间上交错，使得每两个顺序发生的积分周期部分重叠。

公开(公告)号：US6111439A

公开(公告)日：2000-08-29

申请号：US153111

申请日：1998-09-15

Applicant: Carl T. Nelson ,  Robert Essaff

Inventor： Carl T. Nelson ,  Robert Essaff

IPC: H01L27/04 ,  H01L21/822 ,  H02J1/10 ,  H02M1/00 ,  H02M1/36 ,  H02M3/155 ,  H02M3/335 ,  H03K17/00 ,  H03K17/04 ,  H03K17/042 ,  H03K17/0422 ,  H03K17/16 ,  H03K19/013 ,  H01J19/82

CPC classification number: H02M1/36 ,  H02M3/155 ,  H02M3/33507 ,  H03K17/04213 ,  H03K17/0422 ,  H02J2001/104 ,  H02M1/32 ,  H02M2001/009 ,  H03K2217/0036

Abstract: A drive circuit for a high-speed integrated circuit, bipolar switching regulator is disclosed. The circuit runs at megahertz frequencies, yet is efficient as previously available bipolar integrated circuit switching regulators operating at much lower frequencies. The circuitry provides three switch drive currents: a first (nominal) current that is provided while the switch is off in order to conserve power; a second (boosted) current, provided while the switch is transitioning from off to on in order to increase the speed at which the switching element switches on; and a third (drive) current, provided after the switch has turned on for maintaining the switch at a desired point in saturation. The drive current, additionally, varies as a function of the load on the switch in order, again, to conserve power. Additional circuitry increases the speed at which the switch turns off, by momentarily boosting base discharge current during the on-to-off transition period of the switch. The circuitry also increases speed by enabling the drive current prior to switch turn on. The circuitry can regulate both positive and negative outputs using a common error amplifier, as well as providing a multifunction node for shutdown and synchronization. Additionally, the circuitry provides improved recovery from output overshoot conditions. An improved clamp, to prevent the switch from spending too much time in a high power state (which would slow the switch down), increases the stability of the switch as compared with previously known designs.

公开(公告)号：US6072356A

公开(公告)日：2000-06-06

申请号：US93584

申请日：1998-06-08

Applicant: Frederick Y. Kawabata

Inventor： Frederick Y. Kawabata

IPC: G01R13/20 ,  G01R1/07 ,  G01R13/32 ,  H01J19/82

CPC classification number: G01R13/32 ,  G01R1/07

Abstract: An apparatus and method for deriving a signal from the AC line and conveying it to processing circuitry employs two wires each of which is non-conductively attached and capacitively coupled to a respective one of a two-wire AC power line. Each of the capacitive pick-offs is coupled to a respective input of a differential amplifier for amplification. Advantageously, because the output signal is a replica of the AC power line signal, the detection threshold can be set at or near zero volts. This makes the detection point insensitive to the amplitude variations of the AC power line. In one embodiment, an output signal is developed at a single ended output of the differential amplifier, and applied to a low pass filter to remove undesired higher frequencies. A further amplifier provides greater amplification of the filtered representation of the AC power line signal, and includes an amplitude limiting circuit to accommodate the wide range of AC line voltages which may be applied to the instrument.

Abstract translation: 用于从AC线路导出信号并将其传送到处理电路的装置和方法采用两条导线，每条导线被连接并电容耦合到两线交流电力线的相应一个。 每个电容性拾取器耦合到用于放大的差分放大器的相应输入端。 有利的是，由于输出信号是AC电力线信号的复制品，因此可以将检测阈值设置为零伏或接近零伏特。 这使得检测点对于交流电力线的幅度变化不敏感。 在一个实施例中，在差分放大器的单端输出处产生输出信号，并将其施加到低通滤波器以去除不想要的较高频率。 另外的放大器提供对AC电力线信号的滤波表示的更大的放大，并且包括限幅电路，以适应可应用于该仪器的宽范围的AC线路电压。

公开(公告)号：US5574397A

公开(公告)日：1996-11-12

申请号：US352021

申请日：1994-11-30

Applicant: Shigeki Tomishima ,  Hideto Hidaka ,  Masakazu Hirose ,  Takahiro Tsuruda

Inventor： Shigeki Tomishima ,  Hideto Hidaka ,  Masakazu Hirose ,  Takahiro Tsuruda

IPC: H01L21/822 ,  G11C5/14 ,  G11C7/10 ,  G11C11/401 ,  G11C11/409 ,  H01L21/82 ,  H01L27/04 ,  H03K17/16 ,  H03K19/0175 ,  H01J19/82

CPC classification number: G11C7/1057 ,  G11C5/14 ,  G11C7/1051 ,  H03K17/164

Abstract: A semiconductor integrated circuit device includes a pad receiving a power supply potential and a pad receiving a ground potential both formed on a chip, and a power supply potential line and a ground potential line connected to respective pads and formed in a loop manner along a circumference of the chip. The semiconductor integrated circuit device includes a first data output circuit provided for a data output terminal proximate to a predetermined potential pad, and a second data output circuit provided for a data output terminal distant from the predetermined potential pad. First and second data output circuits drive corresponding data output terminals to the predetermined potential in two steps at a lower rate and a higher rate in accordance with an internal output data signal. First and second data output circuits include components for compensating for and canceling an influence on driving the corresponding output nodes due to the difference of distances to the predetermined pad therefrom. As a result, data is provided at a high speed and without overshoot, undershoot or ringing.

公开(公告)号：US5510748A

公开(公告)日：1996-04-23

申请号：US183036

申请日：1994-01-18

Applicant: Richard A. Erhart ,  Thomas W. Ciccone

Inventor： Richard A. Erhart ,  Thomas W. Ciccone

IPC: G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  H03K3/356 ,  H03K3/3562 ,  H01J19/82 ,  G09G5/00 ,  H01L25/00 ,  H03L5/00

CPC classification number: G09G3/3688 ,  H03K3/356147 ,  H03K3/3562 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0297 ,  G09G2330/08 ,  G09G3/2011

Abstract: An integrated circuit for driving an active or passive matrix liquid crystal display panel or the like provides an analog output signal which switches through a voltage range that exceeds the safe operating voltage of the CMOS transistors from which it is formed. Duplicate digital to analog conversion circuits are provided on the integrated circuit but are operated from two different power supply voltage ranges. Each voltage range has a magnitude less than the safe operating voltage. The analog output signals generated by the duplicate digital to analog conversion circuits are coupled to an output multiplexer that is responsive to a control signal for selecting one of the two analog output signals to the output terminal of the integrated circuit. The output multiplexer includes an n-channel pass transistor and a p-channel pass transistor coupled to the output terminal in parallel with each other and responsive to the control signal for passing one or the other of the dual analog signals to the output terminal. Exposure of the pass transistors to voltages exceeding the safe operating voltage is avoided by inserting shielding transistors in series therewith.

公开(公告)号：US5440202A

公开(公告)日：1995-08-08

申请号：US30889

申请日：1993-03-12

Applicant: Hans-Gunter Mathews ,  Wolfram Schminke

Inventor： Hans-Gunter Mathews ,  Wolfram Schminke

IPC: H01J19/38 ,  H01J19/82 ,  H01J21/10 ,  H01J23/027 ,  H01J23/34 ,  H01J25/00 ,  H02M7/19 ,  H05H5/00

CPC classification number: H02M7/19 ,  H01J23/0275 ,  H01J23/34 ,  H05H5/00

Abstract: In an electron beam device having a cathode (1), in which a high-power electron beam propagating along a beam axis (5) is generated, an anode (3) arranged behind the cathode (1) in the direction of beam axis (5), and a collector (4), arranged behind the anode (3) in the direction of the beam axis (5), for decelerating the electrons of the electron beam, the collector (4) is constructed of several collector stages (6) which are arranged successively in the direction of the beam axis (5) and which successively decrease in potential. A high-voltage direct-current supply (13), which consists of a series of similar switching stages (S1, . . . , S6) which are in each case constructed as switchable medium-voltage sources and the outputs of which are connected in series, is provided for the feed arrangement. The potentials of the collector stages (6) are provided by corresponding taps between the switching stages (S1, . . . , S6) of the high-voltage direct-current supply (13 ).

Abstract translation: 在具有阴极（1）的电子束装置中，其中产生沿着光束轴线（5）传播的大功率电子束的阳极（3）在阴极（1）的沿光束轴线方向 5）以及在该光束轴线（5）的方向上布置在该阳极（3）的后面的用于使电子束的电子减​​速的收集器（4），该集电极（4）由几个收集器级 ），其沿着光束轴线（5）的方向依次布置并且依次降低电位。 一种高压直流电源（13），由一系列类似的开关级（S1，...，S6）组成，它们分别构成可切换的中压电源，其输出端连接在 系列，用于饲料装置。 集电极级（6）的电位由高压直流电源（13）的开关级（S1，...，S6）之间的相应抽头提供。

公开(公告)号：US5434532A

公开(公告)日：1995-07-18

申请号：US78523

申请日：1993-06-16

Applicant: Frank L. Thiel

Inventor： Frank L. Thiel

IPC: G05F3/30 ,  G05F1/10 ,  H01J19/82

CPC classification number: G05F3/30

Abstract: A voltage reference circuit (2) is provided that operates with a minimal amount of headroom. A low threshold voltage transistor (M71) is incorporated into a bandgap reference circuit (Q4, Q3, Q2, Q1, R2 and R1) to eliminate base current errors that a current mirror (Q3 and Q4) of the bandgap may introduce. A low threshold voltage transistor (M72) is incorporated into the gain circuit (Q7) to eliminate base current error that a gain transistor (Q7) may introduce. A third low voltage transistor (M73) may be incorporated into a feedback circuit (QS) to eliminate any voltage variations possibly caused by the addition of the first two low threshold transistors (M71 and M72). Using P channel type MOS low voltage threshold transistors for base drive cancellation allows the circuit to operate effectively with a very low input voltage of around about 2.0 volts. These CMOS low threshold devices absorb process variations in the transistors that may occur between different lots of silicon and thereby provide a more manufacturable voltage reference circuit.

Abstract translation: 提供了以最小量的净空操作的电压参考电路（2）。 将低阈值电压晶体管（M71）并入到带隙参考电路（Q4，Q3，Q2，Q1，R2和R1）中，以消除带隙的电流镜（Q3和Q4）可能引入的基极电流误差。 增益电路（Q7）中集成有低阈值电压晶体管（M72），以消除增益晶体管（Q7）可能引入的基极电流误差。 第三低电压晶体管（M73）可以并入到反馈电路（QS）中以消除可能由前两个低阈值晶体管（M71和M72）的添加引起的任何电压变化。 使用P沟道型MOS低电压阈值晶体管进行基极驱动取消允许电路以约2.0伏特的非常低的输入电压有效地工作。 这些CMOS低阈值器件吸收可能在不同批次硅之间发生的晶体管中的工艺变化，从而提供更可制造的电压参考电路。

公开(公告)号：US4766390A

公开(公告)日：1988-08-23

申请号：US20004

申请日：1987-02-27

Applicant: James H. Wharton ,  Peter D. Osman

Inventor： James H. Wharton ,  Peter D. Osman

IPC: H04N3/27 ,  H04N5/63 ,  H01J19/82 ,  H05B39/00

CPC classification number: H04N3/27 ,  H04N5/63

Abstract: A video apparatus capable of operating at different line deflection frequencies incorporates a CRT electron gun assembly heater supply voltage circuit that maintains a constant rms voltage level independent of the line deflection frequency. The heater supply includes a transformer winding located on the line deflection driver transformer. The duty cycle of the developed AC voltage waveform remains substantially constant independent of the line deflection frequency, so that the AC voltage may be applied to the heater circuit.

Abstract translation: 能够以不同的线偏转频率工作的视频装置包括CRT电子枪组件加热器电源电压电路，其保持与线偏转频率无关的恒定均方根电压电平。 加热器电源包括位于线偏转驱动变压器上的变压器绕组。 开发的交流电压波形的占空比与线路偏转频率无关地保持基本恒定，从而可以将AC电压施加到加热器电路。