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公开(公告)号：US11899048B2
公开(公告)日：2024-02-13
申请号：US18110865
申请日：2023-02-16
Applicant: RichWave Technology Corp.
Inventor： Tien-Yun Peng , Hsien-Huang Tsai , Chih-Sheng Chen
CPC classification number: G01R19/0046 , H03K19/20
Abstract: A voltage state detector includes a voltage drop circuit, a pull-down circuit, a load circuit, a transistor, a pull-up circuit, first and second output terminals, and a logic circuit. The pull-down circuit is coupled to the voltage drop circuit. The transistor has a first terminal coupled to the load circuit, a second terminal coupled to the pull-down circuit, and a control terminal coupled to the voltage drop circuit. The pull-up circuit is coupled to the load circuit and the voltage drop circuit. The first output terminal is coupled to the first terminal of the transistor for outputting a first state determination signal. The second output terminal is coupled to the voltage drop circuit for outputting a second state determination signal. The logic circuit includes a NOR gate for performing an NOR operation on the first state determination signal and the second state determination signal to output a control signal.
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公开(公告)号：US20230058738A1
公开(公告)日：2023-02-23
申请号：US17551127
申请日：2021-12-14
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Tien-Yun Peng , Hsien-Huang Tsai
IPC: H03K3/01
Abstract: A driving circuit includes a first reference terminal, a second reference terminal, at least one input terminal, an output terminal, a first transistor, a second transistor, a switch module, and at least one control signal terminal. The at least one input terminal receives at least one input signal. The output terminal outputs an output signal in response to the at least one input signal. The first transistor and the second transistor respectively include control terminals coupled to the at least one input terminal. The switch module includes at least one control terminal coupled to the at least one control signal terminal to receive at least one control signal. The at least one input signal has a transition period. The switch module can be turned off according to the at least one control signal.
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公开(公告)号：US12107572B2
公开(公告)日：2024-10-01
申请号：US18091343
申请日：2022-12-29
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Hsien-Huang Tsai , Meng-Lun Li
CPC classification number: H03K17/102 , H03K2217/0054
Abstract: A switch device includes a first switch unit, a second switch unit, a first sub-switch unit, a second sub-switch unit, a first resistor and a second resistor. The first switch unit is coupled to a radio-frequency terminal and coupled to the second switch unit in cascode. The first sub-switch unit is coupled to the second sub-switch unit in cascode. The first sub-switch unit is further coupled between control terminals of the first switch unit and the second switch unit. The first sub-switch unit is further coupled to a node between the first resistor and the first switch unit. The second sub-switch unit is further coupled to a node between the second resistor and the second switch unit. When the first switch unit and the second switch unit are transitioned, the first sub-switch unit and the second sub-switch unit can be turned on to discharge and/or neutralize accumulated charges.
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公开(公告)号：US20210119628A1
公开(公告)日：2021-04-22
申请号：US17010838
申请日：2020-09-03
Applicant: RichWave Technology Corp.
Inventor： Hsien-Huang Tsai , Chih-Sheng Chen
IPC: H03K17/687
Abstract: A radio frequency apparatus and a voltage generating device thereof are provided. The voltage generating device includes a first switch and a second switch. A first terminal of the first switch receives a first voltage. A control terminal of the first switch receives a second voltage. A first terminal of the second switch receives the second voltage. A control terminal of the second switch receives the first voltage. A second terminal of the second switch and a second terminal of the first switch are coupled to an output node, wherein the output node outputs an output voltage related to at least one of the first voltage and the second voltage.
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公开(公告)号：US20240204769A1
公开(公告)日：2024-06-20
申请号：US18091343
申请日：2022-12-29
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Hsien-Huang Tsai , Meng-Lun Li
IPC: H03K17/10
CPC classification number: H03K17/102 , H03K2217/0054
Abstract: A switch device includes a first switch unit, a second switch unit, a first sub-switch unit, a second sub-switch unit, a first resistor and a second resistor. The first switch unit is coupled to a radio-frequency terminal and coupled to the second switch unit in cascode. The first sub-switch unit is coupled to the second sub-switch unit in cascode. The first sub-switch unit is further coupled between control terminals of the first switch unit and the second switch unit. The first sub-switch unit is further coupled to a node between the first resistor and the first switch unit. The second sub-switch unit is further coupled to a node between the second resistor and the second switch unit. When the first switch unit and the second switch unit are transitioned, the first sub-switch unit and the second sub-switch unit can be turned on to discharge and/or neutralize accumulated charges.
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Patent Agency Ranking
公开(公告)号：US20230194574A1
公开(公告)日：2023-06-22
申请号：US18110865
申请日：2023-02-16
Applicant: RichWave Technology Corp.
Inventor： Tien-Yun Peng , Hsien-Huang Tsai , Chih-Sheng Chen
CPC classification number: G01R19/0046 , H03K19/20
Abstract: A voltage state detector includes a voltage drop circuit, a pull-down circuit, a load circuit, a transistor, a pull-up circuit, first and second output terminals, and a logic circuit. The pull-down circuit is coupled to the voltage drop circuit. The transistor has a first terminal coupled to the load circuit, a second terminal coupled to the pull-down circuit, and a control terminal coupled to the voltage drop circuit. The pull-up circuit is coupled to the load circuit and the voltage drop circuit. The first output terminal is coupled to the first terminal of the transistor for outputting a first state determination signal. The second output terminal is coupled to the voltage drop circuit for outputting a second state determination signal. The logic circuit includes a NOR gate for performing an NOR operation on the first state determination signal and the second state determination signal to output a control signal.
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公开(公告)号：US20220163573A1
公开(公告)日：2022-05-26
申请号：US17138785
申请日：2020-12-30
Applicant: RichWave Technology Corp.
Inventor： Tien-Yun Peng , Hsien-Huang Tsai , Chih-Sheng Chen
Abstract: A voltage state detector includes an input terminal, a voltage drop circuit, a pull-down circuit, a load circuit, a transistor, a pull-up circuit, a first output terminal, and a second output terminal. The voltage drop circuit is coupled to the input terminal. The pull-down circuit is coupled to the voltage drop circuit and a first reference terminal. The load circuit is coupled to a second reference terminal. The transistor has a first terminal coupled to the load circuit, a second terminal coupled to the first reference terminal, and a control terminal coupled to the voltage drop circuit. The pull-up circuit is coupled to the second reference terminal and the voltage drop circuit. The first output terminal is coupled to the first terminal of the transistor for outputting a first state determination signal. The second output terminal is coupled to the voltage drop circuit for outputting a second state determination signal.
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公开(公告)号：US11290136B2
公开(公告)日：2022-03-29
申请号：US16997955
申请日：2020-08-20
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Hsien-Huang Tsai
Abstract: A radio frequency device and a voltage generating device thereof are provided. The voltage generating device includes a first transistor, a second transistor, and a voltage dividing circuit. A first terminal of the first transistor receives a first voltage. A first terminal of the second transistor receives a second voltage. A first connection terminal and a second connection terminal of the voltage dividing circuit are respectively coupled to second terminals of the first transistor and the second transistor. The voltage dividing circuit generates a first divided voltage and a second divided voltage. The first divided voltage is used as an output voltage of the voltage generating device. The second divided voltage is output as a control voltage to a control terminal of the first transistor and a control terminal of the second transistor.
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公开(公告)号：US10680524B2
公开(公告)日：2020-06-09
申请号：US16290975
申请日：2019-03-04
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Tien-Yun Peng , Hsien-Huang Tsai
Abstract: A voltage generator includes an oscillator, a charge pump, a smoothing capacitor, and a driving controller. The oscillator has an output. The charge pump has an input and an output, and the input of the charge pump is coupled to the output of the oscillator. The smoothing capacitor is coupled to the output of the charge pump. The driving controller is coupled to the oscillator, and generates an enable signal to adjust an operation frequency of the oscillator. The voltage generator supplies a driving voltage to a switch for driving the switch via the smoothing capacitor. The driving controller generates the enable signal according to the driving voltage.
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10.发明授权公开(公告)号：US12184172B2
公开(公告)日：2024-12-31
申请号：US18089580
申请日：2022-12-28
Applicant: RichWave Technology Corp.
Inventor： Hsien-Huang Tsai , Chih-Sheng Chen , Tien-Yun Peng
Abstract: A switch device includes a driver circuit, a switch circuit and a level transition circuit. The driver circuit includes an input terminal for receiving an input signal, an output terminal for outputting an output signal, a first terminal coupled to a first reference terminal, and a second terminal coupled to a second reference terminal. The switch circuit includes a control terminal for receiving the output signal. The level transition circuit includes a first terminal for receiving the output signal, a second terminal coupled to a third reference terminal, and a third terminal for receiving the input signal. In a transition interval, the input signal is transitioned from a first input signal level to a second input signal level, the level transition circuit transitions the output signal from a first output signal level to a third output signal level between the first output signal level and a second output signal level.
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