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公开(公告)号：US20170373653A1
公开(公告)日：2017-12-28
申请号：US15620785
申请日：2017-06-12
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Ping-Lin Liu , Pin-Han Su
CPC classification number: H03F3/45215 , H03F1/307 , H03F1/34 , H03F1/342 , H03F3/301 , H03F3/3022 , H03F3/45 , H03F3/45071 , H03F3/45183 , H03F2203/45026 , H03F2203/45054 , H03F2203/45074
Abstract: A current-bootstrap comparator includes a receiving unit, a first current generation unit and a second current generation unit. The receiving unit receives a load voltage signal, a low threshold voltage and a high threshold voltage. The first current generation unit generates a first current. The second current generation unit generates a second current having a magnitude substantially same as a magnitude of the first current and a direction reverse to the first current. The first current and the second current are supplied to a next-stage circuit as a source current and a corresponding sink current, respectively, when the level of the load voltage signal is higher than the high threshold voltage or lower than the low threshold voltage. The magnitudes of the first current and the second current substantially equal zero when the level of the load voltage signal is between the high threshold voltage and the low threshold voltage.
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公开(公告)号：US10175267B2
公开(公告)日：2019-01-08
申请号：US15394770
申请日：2016-12-29
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Hsi-Ming Chen , Chao-Wei Su , Ying-Chieh Yen
Abstract: A current measurement circuit for measuring a current consumption of a circuit system includes a plurality of current measurement units and a current-to-voltage (I-V) converter. Each of the current measurement units includes an impedance unit and a voltage-to-current (V-I) converter. The impedance unit includes a first terminal and a second terminal. The V-I converter, coupled to the first terminal and the second terminal of the impedance unit, includes an output terminal and an operational transconductance amplifier (OTA). The plurality of output terminals of the plurality of V-I converters of the plurality of current measurement units are coupled to a first node. The I-V converter is coupled to the first node.
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公开(公告)号：US20170108883A1
公开(公告)日：2017-04-20
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
IPC: G05F1/575
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：US09494959B2
公开(公告)日：2016-11-15
申请号：US14554009
申请日：2014-11-25
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu , Chun-Wei Huang , Pin-Han Su
CPC classification number: G05F1/565
Abstract: A current source for quickly adjusting an output current includes a constant current generation module, coupled to a control node, for generating a predefined current flowing through the control node in order to determine a voltage of the control node; a capacitor, coupled to an output terminal of the current source; a current variation detection module, coupled between the control node and the capacitor, for generating a variation on the voltage of the control node via the capacitor when the output terminal of the current source receives an instant current variation; and a trans-conductance amplifier, coupled between the control node and the output terminal, for changing a magnitude of the output current of the output terminal when the variation on the voltage of the control node is generated.
Abstract translation: 用于快速调节输出电流的电流源包括耦合到控制节点的恒定电流产生模块，用于产生流过控制节点的预定电流，以便确定控制节点的电压; 电容器，耦合到电流源的输出端; 耦合在所述控制节点和所述电容器之间的电流变化检测模块，用于当所述电流源的输出端子接收瞬时电流变化时经由所述电容器产生所述控制节点的电压的变化; 以及耦合在所述控制节点和所述输出端子之间的跨导放大器，用于在产生所述控制节点的电压变化时改变所述输出端子的输出电流的幅度。
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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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Patent Agency Ranking
公开(公告)号：US10473531B2
公开(公告)日：2019-11-12
申请号：US15695021
申请日：2017-09-05
Applicant: NOVATEK Microelectronics Corp.
Inventor： Ying-Chieh Yen , Min-Hung Hu , Yuan-Te Chen , Cun-Kai Zhao , Chien-Chuan Huang
IPC: G01K11/00 , G01K7/16 , G02F1/1333 , H02H5/04
Abstract: A temperature sensor includes a plurality of temperature coefficient voltage generators, one or more converters and at least one variable voltage or current source. The temperature coefficient voltage generators are used for generating multiple temperature coefficient voltages. The converters, coupled to the temperature coefficient voltage generators, are used for converting the temperature coefficient voltages to digital values. The at least one variable voltage or current source, each coupled to at least one of the temperature coefficient voltage generators, includes a first variable voltage or current source for outputting a first voltage or current in a first time period, and outputting a second voltage or current in a second time period, wherein the second voltage or current is different from the first voltage or current such that there exists a shift between a first voltage-temperature curve in the first time period and a second voltage-temperature curve in the second time period.
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公开(公告)号：US20180188292A1
公开(公告)日：2018-07-05
申请号：US15394770
申请日：2016-12-29
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Hsi-Ming Chen , Chao-Wei Su , Ying-Chieh Yen
CPC classification number: G01R15/146 , G01R19/0023 , G01R19/0092
Abstract: A current measurement circuit for measuring a current consumption of a circuit system includes a plurality of current measurement units and a current-to-voltage (I-V) converter. Each of the current measurement units includes an impedance unit and a voltage-to-current (V-I) converter. The impedance unit includes a first terminal and a second terminal. The V-I converter, coupled to the first terminal and the second terminal of the impedance unit, includes an output terminal and an operational transconductance amplifier (OTA). The plurality of output terminals of the plurality of V-I converters of the plurality of current measurement units are coupled to a first node. The I-V converter is coupled to the first node.
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公开(公告)号：US09471075B2
公开(公告)日：2016-10-18
申请号：US14228235
申请日：2014-03-27
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Pin-Han Su , Chun-Wei Huang , Chen-Tsung Wu , Chiu-Huang Huang
Abstract: A compensation module for a voltage regulation device having a gain stage, an output stage and a miller compensation module includes a low-output-impedance non-inverting amplifier unit coupled to a gain output of the gain stage and an output-stage input of the output stage.
Abstract translation: 具有增益级，输出级和铣刀补偿模块的电压调节装置的补偿模块包括耦合到增益级的增益输出的低输出阻抗非反相放大器单元和输出级输入 输出阶段。
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公开(公告)号：US20160011615A1
公开(公告)日：2016-01-14
申请号：US14554009
申请日：2014-11-25
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu , Chun-Wei Huang , Pin-Han Su
IPC: G05F1/625
CPC classification number: G05F1/565
Abstract: A current source for quickly adjusting an output current includes a constant current generation module, coupled to a control node, for generating a predefined current flowing through the control node in order to determine a voltage of the control node; a capacitor, coupled to an output terminal of the current source; a current variation detection module, coupled between the control node and the capacitor, for generating a variation on the voltage of the control node via the capacitor when the output terminal of the current source receives an instant current variation; and a trans-conductance amplifier, coupled between the control node and the output terminal, for changing a magnitude of the output current of the output terminal when the variation on the voltage of the control node is generated.
Abstract translation: 用于快速调节输出电流的电流源包括耦合到控制节点的恒定电流产生模块，用于产生流过控制节点的预定电流，以便确定控制节点的电压; 电容器，耦合到电流源的输出端; 耦合在所述控制节点和所述电容器之间的电流变化检测模块，用于当所述电流源的输出端子接收瞬时电流变化时经由所述电容器产生所述控制节点的电压的变化; 以及耦合在所述控制节点和所述输出端子之间的跨导放大器，用于在产生所述控制节点的电压变化时改变所述输出端子的输出电流的幅度。
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公开(公告)号：US10038417B2
公开(公告)日：2018-07-31
申请号：US15620785
申请日：2017-06-12
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Ping-Lin Liu , Pin-Han Su
CPC classification number: H03F3/45215 , H03F1/307 , H03F1/34 , H03F1/342 , H03F3/301 , H03F3/3022 , H03F3/45 , H03F3/45071 , H03F3/45183 , H03F2203/45026 , H03F2203/45054 , H03F2203/45074
Abstract: A current-bootstrap comparator includes a receiving unit, a first current generation unit and a second current generation unit. The receiving unit receives a load voltage signal, a low threshold voltage and a high threshold voltage. The first current generation unit generates a first current. The second current generation unit generates a second current having a magnitude substantially same as a magnitude of the first current and a direction reverse to the first current. The first current and the second current are supplied to a next-stage circuit as a source current and a corresponding sink current, respectively, when the level of the load voltage signal is higher than the high threshold voltage or lower than the low threshold voltage. The magnitudes of the first current and the second current substantially equal zero when the level of the load voltage signal is between the high threshold voltage and the low threshold voltage.
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