公开(公告)号：US09459647B2

公开(公告)日：2016-10-04

申请号：US13155392

申请日：2011-06-08

Applicant: Min-Hung Hu ,  Zhen-Guo Ding ,  Chen-Tsung Wu

Inventor： Min-Hung Hu ,  Zhen-Guo Ding ,  Chen-Tsung Wu

IPC: G05F3/30 ,  H02M1/44 ,  H02M1/00 ,  H02M3/156

CPC classification number: G05F3/30 ,  H02M1/44 ,  H02M3/156 ,  H02M2001/0003 ,  H02M2001/0025

Abstract: The present invention provides a bandgap reference circuit. The bandgap reference circuit includes a first bipolar junction transistor, a first resistor, for generating a proportional to absolute temperature current, a second resistor, for generating a complementary to absolute temperature current, a first operational amplifier, coupled with the first bipolar junction transistor and the first resistor, a second operational amplifier, coupled with the first bipolar junction transistor and the second resistor, and a zero temperature correlated current generator, for summing the proportional to absolute temperature current and the complementary to absolute temperature current, to generate a zero temperature correlated current.

Abstract translation: 本发明提供一种带隙基准电路。 带隙参考电路包括用于产生与绝对温度电流成比例的第一双极结晶体管，第一电阻器，用于产生与绝对温度电流互补的第二电阻器，与第一双极结型晶体管耦合的第一运算放大器和 第一电阻器，第二运算放大器，与第一双极结型晶体管和第二电阻器耦合，以及零温度相关电流发生器，用于将与绝对温度电流成正比和与绝对温度电流互补的值相加，以产生零温度 相关电流。

公开(公告)号：US09436205B2

公开(公告)日：2016-09-06

申请号：US14166904

申请日：2014-01-29

Applicant: Dialog Semiconductor GmbH

Inventor： Guillaume De Cremoux

IPC: H03L7/099 ,  G05F3/26 ,  H02M3/18 ,  H03K3/0231 ,  H02M3/158 ,  G05F3/30 ,  H03K3/353

CPC classification number: G05F3/262 ,  G05F3/30 ,  H02M3/1588 ,  H02M3/18 ,  H03K3/0231 ,  H03K3/353

Abstract: An apparatus and method for a voltage reference circuit and oscillator which operates for a low voltage power supply. The voltage reference circuit is used in an “always on” mode of operation, and have low power usage. The operational range is 1.1V to 3.6 V, and must allow for sub-bandgap voltage conditions as well as voltage tolerant for higher voltages. The circuit minimizes the number of current branches by avoiding complexity of operational amplifiers and comparator networks. The circuit avoids stacking of more than 2 devices to allow for low voltage operation. The voltage reference circuit between a power supply node and a ground node and configured for generating a reference voltage comprises of a current mirror function providing matching and sourcing network branches, a voltage generator network sourced from a current mirror providing a base-emitter voltage, a current drive function network electrically sourced from a current mirror function, and an output network function sourced from a current mirror providing a voltage reference output voltage. An oscillator circuit between a power supply node and a ground node and configured for generating an oscillating signal comprises of a current mirror function providing matching and sourcing network branches, a current drive function network electrically sourced from said current mirror function, an output network function sourced from said current mirror providing a capacitors, current sources, a capacitor providing charge storage, and output network function, and, a feedback loop network providing reset function.

Abstract translation: 一种用于低电压电源的电压参考电路和振荡器的装置和方法。 电压基准电路采用“始终开启”工作模式，功耗低。 工作范围为1.1V至3.6V，并且必须允许子带隙电压条件以及更高电压的电压容限。 该电路通过避免运算放大器和比较器网络的复杂性来最小化电流分支的数量。 该电路避免了多于2个器件的堆叠以允许低电压操作。 电源节点和接地节点之间的电压参考电路，用于产生参考电压包括提供匹配和采购网络分支的电流镜功能，源自提供基极 - 发射极电压的电流镜的电压发生器网络， 电流驱动功能网络电流来自电流镜功能，以及源自电流镜的输出网络功能，提供电压参考输出电压。 电源节点和接地节点之间的振荡器电路，用于产生振荡信号，包括提供匹配和采样网络分支的电流镜功能，电流源自所述电流镜功能的电流驱动功能网络，源自输出网络功能 从所述电流镜提供电容器，电流源，提供电荷存储的电容器和输出网络功能，以及提供复位功能的反馈环路网络。

公开(公告)号：US09429975B2

公开(公告)日：2016-08-30

申请号：US14739609

申请日：2015-06-15

Applicant: Skyworks Solutions, Inc.

Inventor： Ziv Alon ,  Aleksey A. Lyalin ,  Jing Sun ,  Tin Wai Kwan

IPC: G05F3/26 ,  G05F3/20

CPC classification number: H04B1/0475 ,  G05F3/20 ,  G05F3/267 ,  G05F3/30 ,  H03F3/195 ,  H03F3/213 ,  H03F3/24 ,  H03F2200/171 ,  H03F2200/451 ,  H03F2200/528 ,  H03F2200/555 ,  H04B2001/0408

Abstract: A voltage reference circuit implemented in GaAs to provide an output voltage component proportional to absolute temperature is described herein. The various embodiments of the voltage reference circuit described here can be used to provide precision voltage to bias a RF device. The voltage reference circuit can be provided on the same die as the RF device. The various embodiments described herein can be implemented in a GaAs material system.

Abstract translation: 这里描述了在GaAs中实现的提供与绝对温度成比例的输出电压分量的电压参考电路。 这里描述的电压参考电路的各种实施例可用于提供精确的电压以偏置RF器件。 电压基准电路可以设置在与RF器件相同的芯片上。 本文描述的各种实施例可以在GaAs材料系统中实现。

公开(公告)号：US09385689B1

公开(公告)日：2016-07-05

申请号：US14881176

申请日：2015-10-13

Applicant: FREESCALE SEMICONDUCTOR, INC.

Inventor： Nishant Singh Thakur ,  Pralay Mandal

IPC: G05F1/10 ,  G05F3/02 ,  H03K3/011 ,  H03K3/0233 ,  G05F3/26 ,  G05F3/30

CPC classification number: G05F3/30 ,  G05F3/267 ,  H03K17/223

Abstract: A reference voltage generator that does not require a start-up circuit or a feedback loop generates a proportional-to-absolute-temperature (PTAT) output voltage based on two complementary-to-absolute-temperature (CTAT) currents. The reference voltage generator provides a reference voltage that is a sum of the PTAT output voltage and a CTAT voltage.

Abstract translation: 不需要启动电路或反馈回路的参考电压发生器基于两个互补绝对温度（CTAT）电流产生比例绝对温度（PTAT）输出电压。 参考电压发生器提供作为PTAT输出电压和CTAT电压之和的参考电压。

公开(公告)号：US09372496B2

公开(公告)日：2016-06-21

申请号：US14811896

申请日：2015-07-29

Applicant: Texas Instruments Incorporated

Inventor： Matthias Arnold

IPC: G05F3/16 ,  G05F3/26 ,  G05F3/30

CPC classification number: G05F3/267 ,  G05F3/16 ,  G05F3/30

Abstract: The invention relates to an electronic device with a bandgap reference generator including a first path with series connection of a first bipolar transistor, a first resistor and a second resistor, and a second path with series connection of a second bipolar transistor and a third resistor. The first and second paths are supplied current via a common node through a fourth resistor controlled by an amplifier sensing voltage drops within the first and second paths. A curvature compensation stage compensates for a variation of base emitter voltage of the bipolar transistors by drawing a compensation current from the common resistor node.

公开(公告)号：US20160170432A1

公开(公告)日：2016-06-16

申请号：US14702449

申请日：2015-05-01

Applicant: SK HYNIX INC.

Inventor： Jin Seong KANG

IPC: G05F3/26

CPC classification number: G05F3/26 ,  G05F3/30

Abstract: A reference voltage generator includes a mirroring circuit generating a first sub-voltage and a second sub-voltage that are constant, a first voltage generator including a first switch generating a first voltage based on the first sub-voltage, and a second voltage generator including a second switch generating a second voltage that is lower than the first voltage based on the second sub-voltage, wherein the second switch has a threshold voltage that is lower than the first switch to keep a voltage difference between the first voltage and the second voltage as a first reference voltage.

Abstract translation: 参考电压发生器包括产生恒定的第一子电压和第二子电压的反射电路，包括基于第一子电压产生第一电压的第一开关的第一电压发生器和包括第一电压发生器的第二电压发生器， 第二开关，其基于所述第二子电压产生低于所述第一电压的第二电压，其中所述第二开关具有低于所述第一开关的阈值电压，以保持所述第一电压和所述第二电压之间的电压差 作为第一参考电压。

公开(公告)号：US09360381B2

公开(公告)日：2016-06-07

申请号：US13439289

申请日：2012-04-04

Applicant: Naoya Arisaka ,  Takayasu Ito ,  Masashi Horiguchi

Inventor： Naoya Arisaka ,  Takayasu Ito ,  Masashi Horiguchi

IPC: G01K7/01 ,  G01K15/00 ,  G05F3/30

CPC classification number: G01K15/005 ,  G01K7/01 ,  G05F3/30

Abstract: A semiconductor device with improved temperature detection accuracy includes a coefficient calculation circuitry which calculates a plurality of N-th order coefficients, where N is an integer equal to or greater than one, of a correction function as an N-th order approximation of a characteristic function which relates temperature data measured by the temperature sensor and the actual temperature. The coefficient calculation circuitry uses N+1 pieces of the temperature data including a theoretical value at absolute zero in the characteristic function and N measured values of the temperature data measured by the temperature sensor unit at N points of temperature. A corrected temperatures are output using the correction function with the calculated coefficients and measured temperature values.

Abstract translation: 具有改进的温度检测精度的半导体器件包括：系数计算电路，其计算多个N阶系数，其中N是等于或大于1的整数，作为特征的N阶近似的校正函数 涉及由温度传感器测量的温度数据和实际温度的功能。 系数计算电路使用N + 1个温度数据，包括特征函数中绝对零度的理论值和温度传感器单元在N个温度点测量的温度数据的N个测量值。 使用具有计算的系数和测量的温度值的校正函数输出校正的温度。

公开(公告)号：US09348352B2

公开(公告)日：2016-05-24

申请号：US14164259

申请日：2014-01-27

Applicant: uPI Semiconductor Corp.

Inventor： Wen-Sheng Lin

IPC: G05F3/08 ,  G05F3/26 ,  G05F3/20 ,  G05F3/30

CPC classification number: G05F3/08 ,  G05F3/20 ,  G05F3/26 ,  G05F3/30

Abstract: A bandgap reference circuit is provided and which includes an operating voltage, a current mirror, a first p-channel metal-oxide semiconductor (PMOS) transistor and an amplifier. The current mirror is coupled to the operating voltage. The first PMOS transistor is coupled to the operating voltage and the current mirror. The amplifier is coupled to the current mirror and the first PMOS transistor. When the bandgap reference circuit is activated, the operating voltage starts to supply voltage such that the first PMOS transistor is turned on first. When the operating voltage is higher than a preset voltage level, the first PMOS transistor is turned off, in order to complete an start-up process.

Abstract translation: 提供了带隙参考电路，其包括工作电压，电流镜，第一p沟道金属氧化物半导体（PMOS）晶体管和放大器。 电流镜与工作电压耦合。 第一PMOS晶体管耦合到工作电压和电流镜。 放大器耦合到电流镜和第一PMOS晶体管。 当带隙参考电路被激活时，工作电压开始提供电压，使得第一PMOS晶体管首先导通。 当工作电压高于预设电压电平时，第一个PMOS晶体管关闭，以完成启动过程。

公开(公告)号：US20160139621A1

公开(公告)日：2016-05-19

申请号：US14940079

申请日：2015-11-12

Applicant: ams AG

Inventor： Mark NIEDERBERGER ,  Thomas MUELLER

IPC: G05F3/26

CPC classification number: G05F3/267 ,  G05F3/24 ,  G05F3/30

Abstract: A voltage reference source (10) comprises a source block (21), a first resistor (16) having a first terminal coupled to a first terminal (22) of the source block (21), a reference output (15) for providing a reference voltage (S6), and a first and a second mirror transistor (11, 12) forming a first current mirror (13). The first mirror transistor (11) couples a second terminal (23) of the source block (21) to a supply voltage terminal (14) and the second mirror transistor (12) couples the reference output (15) to the supply voltage terminal (14). A series connection (17) of a second resistor (18) and a diode (19) is arranged between the reference output (15) and the first terminal of the first resistor (16). A mirror current (S3) flows through the second mirror transistor (12) and the series connection (17) to the first terminal of the first resistor (16).

Abstract translation: 电压参考源（10）包括源极块（21），第一电阻器（16），其具有耦合到源极块（21）的第一端子（22）的第一端子，参考输出端（15） 参考电压（S6）以及形成第一电流镜（13）的第一和第二镜像晶体管（11,12）。 第一反射镜晶体管（11）将源极块（21）的第二端子（23）耦合到电源电压端子（14），而第二反射镜晶体管（12）将参考输出端（15）耦合到电源电压端子 14）。 第二电阻器（18）和二极管（19）的串联（17）布置在参考输出（15）和第一电阻（16）的第一端之间。 反射镜电流（S3）通过第二反射镜晶体管（12）和串联连接（17）流到第一电阻器（16）的第一端子。

公开(公告)号：US09323274B2

公开(公告)日：2016-04-26

申请号：US13687182

申请日：2012-11-28

Applicant: ATI Technologies ULC

Inventor： Grigori Temkine ,  Filipp Chekmazov ,  Oleg Drapkin

IPC: G05F3/08 ,  G05F3/30

CPC classification number: G05F3/30 ,  G05F3/08 ,  G05F3/10

Abstract: A reference voltage generator is provided. In an example, the reference voltage generator includes a temperature-dependent device, a processing module configured to process a digital representations of first and second voltages derived from the temperature-dependent device and a reference voltage to determine a value, and a digital to analog converter (DAC) configured to generate a reference voltage based on the value. The first voltage is proportional to absolute temperature (PTAT) and the second voltage is complementary to absolute temperature (CTAT) and the reference voltage is substantially independent of absolute temperature in an operating temperature range of the reference voltage generator.

Abstract translation: 提供了参考电压发生器。 在一个示例中，参考电压发生器包括依赖于温度的设备，处理模块被配置为处理从依赖于温度的设备导出的第一和第二电压的数字表示以及参考电压以确定值，以及数字到模拟 转换器（DAC），被配置为基于该值产生参考电压。 第一电压与绝对温度（PTAT）成比例，第二电压与绝对温度（CTAT）互补，参考电压基本上与参考电压发生器工作温度范围内的绝对温度无关。