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Patent Agency Ranking
公开(公告)号：US20150333714A1
公开(公告)日：2015-11-19
申请号：US14549553
申请日：2014-11-21
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei-Ta Chiu
CPC classification number: G02F1/133 , G02F1/13306 , G09G3/3685 , G09G2310/0291 , G09G2310/0297 , H03F3/3022 , H03F3/45179 , H03F3/45183 , H03F2200/366 , H03F2203/45154 , H03F2203/45702
Abstract: An operational amplifier comprises a first metal-oxide-semiconductor field effect transistor (MOSFET), comprising a first drain, a first gate and a first source; a second MOSFET, comprising a second drain, a second gate and a second source, the second source coupled to the first source of the first MOSFET; and a bias source, coupled between a first specific level and the first source of the first MOSFET and the second source of the second MOSFET; wherein the first MOSFET and the second MOSFET are depletion-type.
Abstract translation: 运算放大器包括第一金属氧化物半导体场效应晶体管（MOSFET），其包括第一漏极，第一栅极和第一源极; 第二MOSFET，包括第二漏极，第二栅极和第二源极，所述第二源极耦合到所述第一MOSFET的第一源极; 以及耦合在第一特定电平和第一MOSFET的第一源和第二MOSFET的第二源之间的偏置源; 其中所述第一MOSFET和所述第二MOSFET是耗尽型的。
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公开(公告)号：US10587236B2
公开(公告)日：2020-03-10
申请号：US16394037
申请日：2019-04-25
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： De-Shiou Tseng , Wei-Ta Chiu
Abstract: A driver circuit includes a first operational amplifier circuit, a second operational amplifier circuit, and at least one power switching circuit is provided. The first operational amplifier circuit receives a first input signal and generates a first output signal according to the first input signal. The second operational amplifier circuit receives a second input signal and generates a second output signal according to the second input signal. The at least one power switching circuit is coupled to the first operational amplifier circuit and the second operational amplifier circuit, and configured to switch at least one power supply for both the first operational amplifier circuit and the second operational amplifier circuit.
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公开(公告)号：US10320348B2
公开(公告)日：2019-06-11
申请号：US15854046
申请日：2017-12-26
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： De-Shiou Tseng , Wei-Ta Chiu
Abstract: A driver circuit including a first op-amp, a second op-amp, and a power switching circuit is provided. The first op-amp includes a first input stage circuit for generating a first amplified signal and a first output stage circuit. The second op-amp includes a second input stage circuit for generating a second amplified signal and a second output stage circuit. The power switching circuit includes a first output terminal for outputting one of the first amplified signal and the second amplified signal and a second output terminal for outputting the other of the first amplified signal and the second amplified signal. The power switching circuit is configured to switch a first power supply for both the first input stage circuit and the second input stage circuit between a first supply voltage and a second supply voltage in response to the control signal.
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公开(公告)号：US20200162044A1
公开(公告)日：2020-05-21
申请号：US16748866
申请日：2020-01-22
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： De-Shiou Tseng , Wei-Ta Chiu
Abstract: A driver circuit is provided. The driver circuit includes a first operational amplifier circuit, a second operational amplifier circuit, and at least one power switching circuit is provided. The first operational amplifier circuit receives a first input signal and generates a first output signal according to the first input signal. The second operational amplifier circuit receives a second input signal and generates a second output signal according to the second input signal. The at least one power switching circuit is configured to be coupled to switch a first input stage circuit to one of a first output stage circuit and a second output stage circuit, and the at least one power switching circuit is further coupled to switch a second input stage circuit to the other one of the first output stage circuit and the second output stage circuit.
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公开(公告)号：US09436023B2
公开(公告)日：2016-09-06
申请号：US14549553
申请日：2014-11-21
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei-Ta Chiu
CPC classification number: G02F1/133 , G02F1/13306 , G09G3/3685 , G09G2310/0291 , G09G2310/0297 , H03F3/3022 , H03F3/45179 , H03F3/45183 , H03F2200/366 , H03F2203/45154 , H03F2203/45702
Abstract: An operational amplifier comprises a first metal-oxide-semiconductor field effect transistor (MOSFET), comprising a first drain, a first gate and a first source; a second MOSFET, comprising a second drain, a second gate and a second source, the second source coupled to the first source of the first MOSFET; and a bias source, coupled between a first specific level and the first source of the first MOSFET and the second source of the second MOSFET; wherein the first MOSFET and the second MOSFET are depletion-type.
Abstract translation: 运算放大器包括第一金属氧化物半导体场效应晶体管（MOSFET），其包括第一漏极，第一栅极和第一源极; 第二MOSFET，包括第二漏极，第二栅极和第二源极，所述第二源极耦合到所述第一MOSFET的第一源极; 以及耦合在第一特定电平和第一MOSFET的第一源和第二MOSFET的第二源之间的偏置源; 其中所述第一MOSFET和所述第二MOSFET是耗尽型的。
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