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公开(公告)号：US20180166986A1
公开(公告)日：2018-06-14
申请号：US15838181
申请日：2017-12-11
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Wen-Chi Lin , Cheng-Ta Wu , Keng-Nan Chen
IPC: H02M3/07
CPC classification number: H02M3/07 , H02M3/073 , H02M2003/075
Abstract: A charge pump circuit includes N boosting circuits, (N-2) switching circuits and a control circuit. A kth boosting circuit includes a unidirectional component and a capacitor. A positive terminal of the unidirectional component of the kth boosting circuit is electrically connected to a negative terminal of a unidirectional component of a (k-1)th boosting circuit. A first terminal of the capacitor of the kth boosting circuit is electrically connected to a negative terminal of the unidirectional component of the kth boosting circuit. A (2i-1)th switching circuit selectively conducts a current path from a (2i-1)th boosting circuit to a first clock terminal or to a ground terminal according to a control signal of the control circuit. A (2i)th switching circuit selectively conducts a current path from a (2i)th boosting circuit to a second clock terminal or to the ground terminal according to the control signal of the control circuit.
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公开(公告)号：US10944364B2
公开(公告)日：2021-03-09
申请号：US16416230
申请日：2019-05-19
Applicant: Silicon Integrated Systems Corp.
Inventor： Ssu-Che Yang , Wen-Chi Lin , Keng-Nan Chen
Abstract: A configurable amplifier module is disclosed. The configurable amplifier module includes a first amplifier having a non-inverting input, an inverting input, and a first output; a second amplifier having a non-inverting input, an inverting input, and a second output; a first resistor; a second resistor; a third resistor; a detecting unit connected to the second output of the second amplifier and configured to detect whether a current flows through the detecting unit; and a control unit connected to the second resistor and the detecting unit and configured to control the second resistor to be connected to the third resistor or a direct current signal.
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Patent Agency Ranking
公开(公告)号：US20200186089A1
公开(公告)日：2020-06-11
申请号：US16687708
申请日：2019-11-19
Applicant: Silicon Integrated Systems Corp.
Inventor： Wen-Chi LIN , Keng-Nan Chen
IPC: H03D13/00 , H01L29/872 , G04F10/00 , H03L7/093
Abstract: A frequency detector is used for detecting a frequency difference of a signal to be tested from a first time point to a second time point. The frequency detector includes: an alternating current coupled capacitor configured to receive the signal to be tested; a rectifying circuit electrically connected to the alternating current coupled capacitor; an analog-to-digital converter electrically connected to the rectifying circuit; a control unit electrically connected to the analog-to-digital converter; and a counter electrically connected to the rectifying circuit and the control unit, wherein the control unit is configured to calculate the frequency difference of the signal to be tested from the first time point to the second time point according to outputs of the analog-to-digital converter and outputs of the counter.
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公开(公告)号：US10570008B2
公开(公告)日：2020-02-25
申请号：US15668844
申请日：2017-08-04
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che Yang , Wen-Chi Lin , Keng-Nan Chen
Abstract: A sensing device includes a micro-electromechanical sensor, a source follower and an amplifier. The source follower includes a first output module including a first transistor and a second transistor. The micro-electromechanical sensor is configured to generate an input signal. A first terminal of the first transistor is configured to receive a first reference voltage. A second terminal and a control of the first transistor are electrically connected to the first output terminal and to a first current source respectively. A first terminal and a second terminal of the second transistor are electrically connected to the second terminal and the control terminal of the first transistor respectively. A control terminal of the second transistor is configured to receive the input signal. A first input terminal and a second input terminal of the amplifier are electrically connected to a first output terminal configured to receive a common-mode voltage respectively.
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公开(公告)号：US10141897B2
公开(公告)日：2018-11-27
申请号：US15831220
申请日：2017-12-04
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che Yang , Wen-Chi Lin , Keng-Nan Chen
Abstract: A source follower includes a first transistor, a first output module, a second transistor, a second output module and a feedback module. The first terminal and the control terminal of the first transistor are configured to respectively receive a first base voltage and a first control voltage. The second terminal of the first transistor and the first output module are electrically connected to a first output terminal. The first terminal and the control terminal of the second transistor are configured to respectively receive a first base voltage and a second control voltage. The second terminal of the second transistor and the second output module are electrically connected to a second output terminal. The feedback module is electrically connected to the control terminal of the first transistor, the control terminal of the second transistor and a reference node of the second output module.
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公开(公告)号：US10122337B2
公开(公告)日：2018-11-06
申请号：US15669798
申请日：2017-08-04
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che Yang , Wen-Chi Lin , Keng-Nan Chen
Abstract: A programmable gain amplifier includes an active load module, a first differential pair, a second differential pair and a power source module. The first and second differential pairs are electrically connected to the active load module. The power source module is electrically connected to the first current source end of the first differential pair and the second current source end of the second differential pair. The power source module supplies a first current to the first differential pair through the first current source end. The power source module supplies a second current to the second differential pair through the second current source end. The power source module adjusts the potential of the first current, the potential of the second current, or both.
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公开(公告)号：US20180159485A1
公开(公告)日：2018-06-07
申请号：US15831220
申请日：2017-12-04
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che YANG , Wen-Chi Lin , Keng-Nan Chen
CPC classification number: H03F1/342 , G05F1/00 , H03F1/301 , H03F1/3205 , H03F3/345 , H03F3/347 , H03F3/45183 , H03F3/45475 , H03F3/505 , H03F2200/135 , H03F2200/447 , H03F2203/5012 , H03K5/023
Abstract: A source follower includes a first transistor, a first output module, a second transistor, a second output module and a feedback module. The first terminal and the control terminal of the first transistor are configured to respectively receive a first base voltage and a first control voltage. The second terminal of the first transistor and the first output module are electrically connected to a first output terminal. The first terminal and the control terminal of the second transistor are configured to respectively receive a first base voltage and a second control voltage. The second terminal of the second transistor and the second output module are electrically connected to a second output terminal. The feedback module is electrically connected to the control terminal of the first transistor, the control terminal of the second transistor and a reference node of the second output module.
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