公开(公告)号：US4742330A

公开(公告)日：1988-05-03

申请号：US45349

申请日：1987-05-01

申请人： Joey Doernberg ,  Paul R. Gray ,  David A. Hodges

发明人： Joey Doernberg ,  Paul R. Gray ,  David A. Hodges

IPC分类号： H03M1/00 ,  H03M1/12

CPC分类号： H03M1/10 ,  H03M1/361

摘要： A flash ADC utilizes parallel weighted capacitive arrays and a resistor string to provide reference voltage intervals and an encoder for indicating the reference voltage interval wherein an input voltage lies. For an embodiment having N branches, the reference voltage intervals are subdivided into N sub-intervals and each succeeding clock cycle.

摘要翻译： 闪存ADC使用并行加权电容阵列和电阻串来提供参考电压间隔，以及用于指示输入电压所在的参考电压间隔的编码器。 对于具有N个分支的实施例，参考电压间隔被细分为N个子间隔和每个后续时钟周期。

公开(公告)号：US06717451B1

公开(公告)日：2004-04-06

申请号：US10159089

申请日：2002-05-30

申请人： Hans W. Klein ,  Paul Hildebrant ,  Joey Doernberg ,  Jian Li

发明人： Hans W. Klein ,  Paul Hildebrant ,  Joey Doernberg ,  Jian Li

IPC分类号： H03L500

CPC分类号： H03K5/003 ,  H03F1/301 ,  H03F3/505 ,  H03F2203/5027 ,  H03F2203/5031

摘要： The inventive level shifting circuit shifts an analog input signal by a precise amount. This allows it to be used in precision instrumentation applications where precise signal shifts are critical. It uses a self-biasing feedback circuit to determine the bias current needed to shift an analog signal by a desired amount. The circuit automatically compensates for influences by temperature, supply voltage, and process variations. This circuit also has value as a stand-alone function for other (non-programmable) products.

摘要翻译： 本发明的电平移位电路使模拟输入信号移位精确的量。 这允许将其用于精确的信号偏移至关重要的精密仪器应用中。 它使用自偏置反馈电路来确定将模拟信号移位所需量所需的偏置电流。 该电路自动补偿温度，电源电压和工艺变化的影响。 该电路还具有作为其他（不可编程）产品的独立功能的价值。

公开(公告)号：US20050168270A1

公开(公告)日：2005-08-04

申请号：US10768643

申请日：2004-01-30

申请人： Robert Bartel ,  Joey Doernberg ,  Edward Miller

发明人： Robert Bartel ,  Joey Doernberg ,  Edward Miller

IPC分类号： G05F1/10 ,  G05F3/30

CPC分类号： G05F3/30

摘要： A bandgap reference circuit can use various output stages to implement a controlled feedback method of sensing and supplying the needed load current through a sensing network. A small amount of circuitry can be added to a class AB output stage to decouple the bandgap reference feedback from a capacitive load and simultaneously sense load current needs and boost current as needed while minimizing voltage droop. Such circuits can be implemented using relatively compact designs while still reducing droop, and thus allowing the use of a large external capacitor to reduce noise and maintain good power supply rejection.

摘要翻译： 带隙参考电路可以使用各种输出级来实现感测和提供所需负载电流通过感测网络的受控反馈方法。 可以将少量电路添加到AB类输出级，以将带隙参考反馈与容性负载分离，同时在最小化电压下降的同时检测负载电流需求并提高电流。 这样的电路可以使用相对紧凑的设计来实现，同时仍然减小下垂，从而允许使用大的外部电容器来降低噪声并保持良好的电源抑制。

公开(公告)号：US5769384A

公开(公告)日：1998-06-23

申请号：US591848

申请日：1996-01-25

申请人： Richard A. Baumgartner ,  Travis N. Blalock ,  Thomas Hornak ,  Joey Doernberg

发明人： Richard A. Baumgartner ,  Travis N. Blalock ,  Thomas Hornak ,  Joey Doernberg

IPC分类号： H01L27/14 ,  H01L27/146 ,  H01L31/10 ,  H04N1/028 ,  H04N1/047 ,  H04N1/107 ,  H04N5/335 ,  H03F1/34

CPC分类号： H01L27/14643 ,  H04N1/047 ,  H04N3/155 ,  H04N1/107 ,  H04N2201/04712

摘要： Circuitry and circuitry layout are provided to achieve a high percentage of photoreceiver area to total area and to stabilize the voltage at the base node of a phototransistor. Voltage stabilization is achieved by a servo circuit in which a negative feedback loop from the base node to an emitter node maintains a bias point, so that photocurrent is efficiently delivered to charge transfer circuitry. In the preferred embodiment, the base node is connected to a gate of a first transistor having a drain that is connected to a source of constant current and to a gate of a second transistor that functions as a source follower. The source of the second transistor is connected to the emitter node of a phototransistor. As photocurrent is generated by the reception of light, an integration capacitor is charged. The relatively high percentage of photoreceiver area to total area is achieved by contributions from a number of factors, including the design of the servo circuit, use of a single transfer amplifier to service an entire row of phototransistors, and pairing the phototransistor circuits in order to permit efficient sharing of common circuit paths and circuit components.

摘要翻译： 提供了电路和电路布局以实现高百分比的光接收器面积到总面积并稳定光电晶体管的基极节点处的电压。 电压稳定通过伺服电路实现，其中从基极节点到发射极节点的负反馈回路保持偏置点，使得光电流被有效地传送到电荷传输电路。 在优选实施例中，基极节点连接到具有连接到恒定电流源的漏极和用作源极跟随器的第二晶体管的栅极的第一晶体管的栅极。 第二晶体管的源极连接到光电晶体管的发射极节点。 由于通过光的接收产生光电流，因此对积分电容器进行充电。 光接收器面积对总面积的相对高的百分比是通过许多因素的贡献来实现的，包括伺服电路的设计，使用单个传递放大器来维护整行光电晶体管，以及将光电晶体管电路配对，以便 允许有效共享公共电路路径和电路组件。