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1. 发明申请

WO2019156763A1 RELIABLE DIGITAL LOW DROPOUT VOLTAGE REGULATOR 审中-公开
公开(公告)号：WO2019156763A1
公开(公告)日：2019-08-15
申请号：PCT/US2019/012561
申请日：2019-01-07
申请人： INTEL CORPORATION
发明人： MEINERZHAGEN, Pascal A. , KIM, Stephen , CHO, Minki , KHELLAH, Muhammad M.
IPC分类号： G05F3/16 , G04F10/00
摘要： An apparatus is provided which comprises: a first device coupled to a first power supply rail; a second device coupled in series with the first device, wherein the second device is coupled to a second power supply rail; and a third device coupled to the first and second power supply rails, wherein the first device is controllable by a first input, wherein the second device is controllable by a second input, wherein the third device is controllable by a third input, and wherein the first input is an analog bias between a high power supply level and a ground supply level.

2. 发明申请

WO2017087952A3 BANDGAP REFERENCE CIRCUIT WITH CURVATURE COMPENSATION 审中-公开
公开(公告)号：WO2017087952A3
公开(公告)日：2017-05-26
申请号：PCT/US2016/063107
申请日：2016-11-21
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS DEUTSCHLAND GMBH , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： ARNOLD, Matthias , QAIYUM, Asif
IPC分类号： G05F3/16 , G05F3/26
摘要： In described examples of a bandgap reference circuit (20) with curvature compensation, the circuit (20) includes a first current mirror (25) that mirrors a current (I c ) conducted by a bandgap reference (VBG). A difference between gate-to- source voltages in two legs provides a first mirrored current (I x ) with non-linear temperature stability. The first mirrored current (I x ) is mirrored by a second current mirror (35) in which mirror transistors (34a, 34b) have differing gate-to-source voltages, with current from the second current mirror (35) coupled to the bandgap reference (VBG) to compensate for curvature in a CTAT current over temperature.

3. 发明申请

WO2016144266A1 METHOD AND CIRCUIT FOR PROVIDING AN ACCURATE VOLTAGE FOR ELECTROCHEMICAL SENSING 审中-公开
标题翻译：提供电化学传感精度电压的方法和电路
公开(公告)号：WO2016144266A1
公开(公告)日：2016-09-15
申请号：PCT/SG2016/050115
申请日：2016-03-11
申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
发明人： NISHIDA, Yoshio
IPC分类号： G01N27/26 , G05F3/16
CPC分类号： G01N27/4163 , G01N27/416
摘要： A method and devices for controlling a potentiostat control loop circuit to provide an accurate cell voltage for electrochemically sensing a sample, wherein the cell voltage corresponds to a difference between electrode voltages a a working electrode and a reference electrode of a three-electrode potentiostat are provided. The devices include a potentiostat control loop circuit having a first amplifier with an output connected to a counter electrode of the three electrode potentiostat and a first input connected to a first potential and a first switched capacitor network including a first capacitance device having a first electrode connected to a second input of the first amplifier. The first switched capacitor network is also operatively connected to the first amplifier for operating in a first mode and a second mode t switchably couple the second input of the first amplifier to the reference electrode of the three-electrode potentiostat. The method includes the step of, in the second mode, coupling the second input of the first amplifier to the reference electrode of the three-electrode potentiostat via the first capacitance device by coupling a second electrode of the firs capacitance device to the reference electrode of the three-electrode potentiostat.
摘要翻译：一种用于控制恒电位仪控制环电路以提供用于电化学感测样品的精确电池电压的方法和装置，其中，电池电压对应于工作电极和三电极恒电位仪的参考电极之间的电极电压之间的差异。所述装置包括恒电位仪控制回路电路，其具有第一放大器，输出端连接到三电极恒电位仪的对电极，第一输入端与第一电位相连，第一开关电容器网络包括第一电容器件，到第一放大器的第二输入。第一开关电容器网络还可操作地连接到第一放大器，用于以第一模式操作，第二模式t可切换地将第一放大器的第二输入耦合到三电极恒电位仪的参考电极。该方法包括以下步骤：在第二模式中，通过将第一电容器件的第二电极耦合到第一电容器件的参考电极至第一电容器件的参考电极，将第一放大器的第二输入端耦合到三电极恒电位仪的参考电极三电极恒电位仪。

4. 发明申请

WO2013016884A1 基于温度补偿的电压基准电路审中-公开
公开(公告)号：WO2013016884A1
公开(公告)日：2013-02-07
申请号：PCT/CN2011/078830
申请日：2011-08-24
申请人：中国电子科技集团公司第二十四研究所 , 李婷 , 张正璠 , 徐鸣远 , 王育新 , 刘涛
发明人：李婷 , 张正璠 , 徐鸣远 , 王育新 , 刘涛
IPC分类号： G05F3/16
CPC分类号： G05F3/02 , G05F3/30
摘要：一种基于温度补偿的电压基准电路，包括正温度系数生成单元（1）、负温度系数生成单元（2）、温度补偿电路（3）、镜像电路（4）和分压电路（5），负温度系数生成单元（2）和温度补偿电路（3）共同产生零温度系数的基准电压，利用T项来补偿T项，利用Tln（T）项来补偿Tln（T）项，使得输出基准电压与T项和Tln（T）项无关，同时可以通过调节分压电路（5）中电阻的比例关系来确定输出电压值，并确定正负温度系数生成单元（2，3）中的工作电压。

5. 发明申请

WO2008147780A1 METHOD AND CIRCUIT FOR AN EFFICIENT AND SCALABLE CONSTANT CURRENT SOURCE FOR AN ELECTRONIC DISPLAY 审中-公开
标题翻译：用于电子显示的有效和可定量恒定电流源的方法和电路
公开(公告)号：WO2008147780A1
公开(公告)日：2008-12-04
申请号：PCT/US2008/064271
申请日：2008-05-20
申请人： MSILICA , THANDI, Gurjit, S. , S, Dilip , SANTO, Hendrik , VI, Kien
发明人： THANDI, Gurjit, S. , S, Dilip , SANTO, Hendrik , VI, Kien
IPC分类号： G05F3/16
CPC分类号： G05F3/205
摘要： The present invention uses two transistors instead of a sensing resistor to provide a constant current source for a load such as an array of light emitting diodes ( LEDs ). In the present invention, a bias current is applied to a branch of the circuit. The drain-to-source voltages of two transistors are matched. The voltage at the gate of both transistors is controlled based on the bias current and the drain-to-source current of the first of the two transistors. The second of the two transistors is sized such that source current of the second transistor is a multiple of the source current of the first transistor for a given gate voltage. By the techniques of this invention, the load current in a circuit is efficiently kept constant at a multiple of the input bias current.
摘要翻译：本发明使用两个晶体管而不是感测电阻来为例如发光二极管（LED）阵列的负载提供恒定电流源。在本发明中，偏置电流被施加到电路的支路。两个晶体管的漏极 - 源极电压匹配。基于两个晶体管中的第一个的偏置电流和漏极 - 源极电流来控制两个晶体管的栅极处的电压。两个晶体管中的第二个的尺寸使得第二晶体管的源电流对于给定的栅极电压是第一晶体管的源极电流的倍数。通过本发明的技术，电路中的负载电流被有效地保持恒定在输入偏置电流的倍数。

6. 发明申请

WO2006124882A3 BANDGAP GENERATOR PROVIDING LOW-VOLTAGE OPERATION 审中-公开
公开(公告)号：WO2006124882A3
公开(公告)日：2006-11-23
申请号：PCT/US2006/018895
申请日：2006-05-12
申请人： LATTICE SEMICONDUCTOR CORPORATION
发明人： JOHNSON, Phillip
IPC分类号： G05F1/10 , G05F3/02 , G05F3/04 , G05F3/08 , G05F3/16 , G05F3/20
摘要： A bandgap reference circuit (Fig. 4) uses a pair of parallel loads (438 and 439) and an op-amp driver circuit (411). The op-amp driver circuit uses NMOS inputs (N NEG N POS ) to sense voltage conditions at the loads. The configuration permits low-voltage response at low temperatures as a result of the configuration setting operating voltages above a saturation voltage. The op-amp driver provides an NMOS output (431), and a low-gain stage (446) converts the NMOS output to an output corresponding to that of a conventional PMOS design (Vout).

7. 发明申请

WO2004070926A3 IMPROVED METHOD OF DETECTING SWITCHING POWER SUPPLY OUTPUT CURRENT 审中-公开
标题翻译：检测开关电源输出电流的改进方法
公开(公告)号：WO2004070926A3
公开(公告)日：2005-04-14
申请号：PCT/US2004003091
申请日：2004-02-03
申请人： JAM TECHNOLOGIES LLC , KIRN LARRY
发明人： KIRN LARRY
IPC分类号： H02M3/156 , G05F1/652 , G05F1/10 , G05F1/40 , G05F1/44 , G05F1/56 , G05F1/613 , G05F1/618 , G05F1/656 , G05F3/00 , G05F3/16
CPC分类号： H02M3/156 , H02M2001/0009
摘要： A method according to the invention includes the steps of inferring the peak current through the inductor (303) as a function of input voltage and inductor charge time, and deriving the current available to the load based upon the flyback voltage during discharge of the inductor (303). In terms of apparatus, in a switching power supply of the type wherein a switching device (302) is used to charge an inductor (303) that discharges to a load, the invention provides devices arranged for detecting output current without the need for a resistor or other component in series with the load. In the preferred embodiment, these devices include electrical components operative to generate a signal indicative of peak inductor current, and a switch (302) for switching the signal to provide a waveform, the integral of which is proportional to peak inductor current multiplied by the duty cycle of the discharge of the inductor (303).
摘要翻译：根据本发明的方法包括以下步骤：根据输入电压和电感器充电时间推断通过电感器（303）的峰值电流，并且基于电感器放电期间的反激电压导出可用于负载的电流（ 303）。在设备方面，在其中使用开关装置（302）对放电到负载的电感器（303）进行充电的开关电源中，本发明提供了用于检测输出电流而不需要电阻器或与负载串联的其他部件。在优选实施例中，这些装置包括用于产生指示峰值电感器电流的信号的电气部件和用于切换信号以提供波形的开关（302），该开关与其峰值电感电流乘以占空比成比例电感（303）的放电周期。

8. 发明申请

WO99056190A1 TEMPERATURE TRACKING VOLTAGE-TO-CURRENT CONVERTER 审中-公开
标题翻译：温度跟踪电压到电流转换器
公开(公告)号：WO99056190A1
公开(公告)日：1999-11-04
申请号：PCT/US1999/008742
申请日：1999-04-20
IPC分类号： G01R31/02 , G01R31/30 , G01R31/316 , G01R31/319 , G05F1/56 , G05F3/16 , G05F3/26 , G05F3/02
CPC分类号： G05F1/561 , G01R31/3004 , G01R31/31924 , G05F3/265
摘要： A programmable and precise voltage-to-current converter (i.e. current source) that tracks temperature variations. The voltage-to-current converter is implemented by placing a voltage reference circuit (405) between the bases of two transistors (401 and 402), or alternatively between a diode and a transistor. The voltage controlled current source circuit can be adjusted to track temperature variations. In one embodiment, the voltage reference circuit is a programmable digital-to-analog (D/A) converter. In a second embodiment, the voltage reference circuit is a differential amplifier.
摘要翻译：跟踪温度变化的可编程和精确的电压 - 电流转换器（即电流源）。电压 - 电流转换器通过将电压参考电路（405）放置在两个晶体管（401和402）的基极之间，或者替代地在二极管和晶体管之间来实现。可以调节压控电流源电路以跟踪温度变化。在一个实施例中，电压参考电路是可编程数模（D / A）转换器。在第二实施例中，电压参考电路是差分放大器。

9. 发明申请

WO9858301A3 A CIRCUIT FOR CONTROLLING AC/DC POWER LOAD 审中-公开
标题翻译：用于控制交流/直流电源负载的电路
公开(公告)号：WO9858301A3
公开(公告)日：1999-03-11
申请号：PCT/IB9800593
申请日：1998-04-20
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS SVENSKA AB
发明人： THUS FRANCISCUS JOHANNES
IPC分类号： G05F3/16 , G05B11/01 , G05F3/26 , H04M1/00 , H04M19/08
CPC分类号： G05F3/265
摘要： A control circuit comprises a buzzer and an AC/DC buzzer/load control means having: a main current stream coupled to the load, and a current source connected in series with the main current stream of the AC/DC buzzer/load control means. The current source has only one combined input for simultaneously controlling the AC/DC power to the load for buzzer volume and pitch control. Such a control circuit can easily be implemented in an IC such as a telephone IC.

10. 发明申请

WO2022236890A1 具有高阶温度补偿的带隙基准电压生成电路审中-公开
公开(公告)号：WO2022236890A1
公开(公告)日：2022-11-17
申请号：PCT/CN2021/097742
申请日：2021-06-01
申请人：上海类比半导体技术有限公司
发明人：张维承 , 张俊
IPC分类号： G05F1/567 , G05F3/16
摘要：一种具有高阶温度补偿的带隙基准电压（VBG）生成电路，可以得到温度不敏感的带隙基准电压（VBG）。其中，电路包括第一电流源（I ptat，I ptat1）、第二电流源（I c，I c1）和加法器（11，42），第一电流源（I ptat，I ptat1）与温度线性相关，第一电流源（I ptat，I ptat1）通过第一电阻（R 1）生成第一电压，第二电流源（I c，I c1）包括与温度二阶相关的电流项，第二电流源（I c，I c1）通过第一双极型晶体管（Q 1）生成第二电压（VBE，VBE1），加法器（11，42）根据第一电压和第二电压（VBE，VBE1）生成与温度无关的带隙基准电压（VBG）。

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