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Patent Agency Ranking
公开(公告)号：US09213349B2
公开(公告)日：2015-12-15
申请号：US14016132
申请日：2013-09-01
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu
Abstract: The present invention discloses a bandgap reference circuit. The bandgap reference circuit includes an operational transconductance amplifier, and a reference generation circuit. The operational transconductance amplifier includes a self-biased operational transconductance amplifier, for utilizing an area difference between bipolar junction transistors of an input pair to generate a first positive temperature coefficient current to bias the input pair, and generating a positive temperature coefficient control voltage and a negative temperature coefficient control voltage; and a feedback voltage amplifier, for amplifying the negative temperature coefficient control voltage, and outputting a reference voltage to the input pair for feedback, to generate a first negative temperature coefficient current. The reference generation circuit generates a summation voltage or a summation current according to the positive temperature coefficient control voltage and the negative temperature coefficient control voltage.
Abstract translation: 本发明公开了一种带隙参考电路。 带隙基准电路包括一个运算跨导放大器和一个参考产生电路。 运算跨导放大器包括自偏置运算跨导放大器，用于利用输入对的双极结型晶体管之间的面积差产生第一正温度系数电流以偏置输入对，并产生正温度系数控制电压和 负温度系数控制电压; 以及反馈电压放大器，用于放大负温度系数控制电压，并将输出参考电压输出到输入对以进行反馈，以产生第一负温度系数电流。 参考产生电路根据正温度系数控制电压和负温度系数控制电压产生求和电压或求和电流。
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公开(公告)号：US09971370B2
公开(公告)日：2018-05-15
申请号：US14887287
申请日：2015-10-19
Applicant: Novatek Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu , Juin-Wei Huang , Pin-Han Su
Abstract: A voltage regulator including a voltage amplifier, a first output-stage, an AC-pass filter, a current amplifier, a second output-stage and a gain circuit is provided. Output terminals of the first and the second output-stages jointly provide the output voltage of the voltage regulator. Two input terminals of the voltage amplifier respectively receive a reference voltage and the output voltage. An input terminal of the first output-stage is coupled to an output terminal of the voltage amplifier. Two input terminals of the current amplifier respectively receive a reference current and the AC component of the output voltage. An input terminal of the second output-stage is coupled to an output terminal of the current amplifier. An input terminal of the gain circuit is coupled to the output terminal of the voltage amplifier. An output terminal of the gain circuit is coupled to the input terminal of the second output-stage.
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公开(公告)号：US09093896B2
公开(公告)日：2015-07-28
申请号：US14536292
申请日：2014-11-07
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu
CPC classification number: H02M1/08 , H02M2001/0003 , H03F3/45183 , H03F3/45192 , H03F2203/45674
Abstract: A multi-power domain operational amplifier includes an input stage circuit, a power domain transforming circuit and an active load. The input stage circuit is configured to transform a set of input voltages into a set of input currents in a first power domain. The power domain transforming circuit is configured to transform the set of input currents into a set of output currents in a second power domain. The active load is configured to generate an output voltage according to the set of output currents. A common mode range of the output voltage is shifted as compared with a common mode range of the set of input voltages.
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公开(公告)号：US20150042297A1
公开(公告)日：2015-02-12
申请号：US14135583
申请日：2013-12-20
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Pin-Han Su , Chen-Tsung Wu , Chiu-Huang Huang , Chun-Wei Huang
IPC: H02M1/00
CPC classification number: G05F1/56
Abstract: A voltage converting device with a self-reference feature for an electronic system includes a differential current generating module, implemented in a Complementary metal-oxide-semiconductor (CMOS) processing for generating a differential current pair according to a converting voltage; and a voltage converting module, coupled to the differential current generating module, a first supply voltage and a second supply voltage of the electronic system for generating the converting voltage according to the differential current pair, the first supply voltage and the second supply voltage.
Abstract translation: 具有用于电子系统的自参考特征的电压转换装置包括：差分电流产生模块，用于根据转换电压产生差动电流对的互补金属氧化物半导体（CMOS）处理; 以及耦合到所述差分电流产生模块的电压转换模块，所述电子系统的第一电源电压和第二电源电压用于根据所述差动电流对，所述第一电源电压和所述第二电源电压产生转换电压。
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公开(公告)号：US20140077789A1
公开(公告)日：2014-03-20
申请号：US14016132
申请日：2013-09-01
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu
IPC: G05F3/02
Abstract: The present invention discloses a bandgap reference circuit. The bandgap reference circuit includes an operational transconductance amplifier, and a reference generation circuit. The operational transconductance amplifier includes a self-biased operational transconductance amplifier, for utilizing an area difference between bipolar junction transistors of an input pair to generate a first positive temperature coefficient current to bias the input pair, and generating a positive temperature coefficient control voltage and a negative temperature coefficient control voltage; and a feedback voltage amplifier, for amplifying the negative temperature coefficient control voltage, and outputting a reference voltage to the input pair for feedback, to generate a first negative temperature coefficient current. The reference generation circuit generates a summation voltage or a summation current according to the positive temperature coefficient control voltage and the negative temperature coefficient control voltage.
Abstract translation: 本发明公开了一种带隙参考电路。 带隙基准电路包括一个运算跨导放大器和一个参考产生电路。 运算跨导放大器包括自偏置运算跨导放大器，用于利用输入对的双极结型晶体管之间的面积差产生第一正温度系数电流以偏置输入对，并产生正温度系数控制电压和 负温度系数控制电压; 以及反馈电压放大器，用于放大负温度系数控制电压，并将输出参考电压输出到输入对以进行反馈，以产生第一负温度系数电流。 参考产生电路根据正温度系数控制电压和负温度系数控制电压产生求和电压或求和电流。
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