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公开(公告)号：US09590500B2
公开(公告)日：2017-03-07
申请号：US14886343
申请日：2015-10-19
Applicant: Richwave Technology Corp.
Inventor： Chih-Sheng Chen , Tien-Yun Peng
CPC classification number: H02M3/24 , H02M1/36 , H02M3/07 , H02M7/103 , H02M2003/075
Abstract: A voltage generator including an oscillator having an output, a charge pump having an input and an output, the input of the charge pump being coupled to the output of the oscillator, a smoothing capacitor, a resistor having an input end and an output end, wherein the input end is coupled to the charge pump and the output end is coupled to the smoothing capacitor, and a shorting element connected in parallel with the resistor and which, when turned on, causes the resistor to be at least partially bypassed, wherein the voltage generator is configured to supply voltage to a radio frequency (RF) switch via the smoothing capacitor, and a frequency of the oscillator is controlled to be faster during a switching period of the RF switch.
Abstract translation: 一种电压发生器，包括具有输出的振荡器，具有输入和输出的电荷泵，电荷泵的输入耦合到振荡器的输出，平滑电容器，具有输入端和输出端的电阻器， 其中所述输入端耦合到所述电荷泵，并且所述输出端耦合到所述平滑电容器，以及与所述电阻器并联连接的短路元件，并且当导通时使所述电阻器至少部分地被旁路，其中， 电压发生器被配置为通过平滑电容器向射频（RF）开关提供电压，并且在RF开关的开关周期期间将振荡器的频率控制得更快。
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112.发明授权公开(公告)号：US09543929B2
公开(公告)日：2017-01-10
申请号：US14957610
申请日：2015-12-03
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen
IPC: H03K17/687 , H03K17/60 , G11C5/14 , H03K3/012 , H03K17/00 , H03K17/693
CPC classification number: H03K3/012 , H03K17/007 , H03K17/687 , H03K17/693
Abstract: An power voltage generating unit for a radio frequency switch includes a first input and a second input respectively configured to receive a first control signal and a second control signal, wherein the first control signal and the second control signal are configured to control which one of a plurality of paths in the radio frequency switch is enabled, and at least one output, configured to output an auxiliary voltage, derived from at least one of the first control signal or the second control signal, that is used to operate the radio frequency switch. The power voltage may be a voltage used to power an inverting circuit used to enable a selected branch as an isolation branch or shunt branch.
Abstract translation: 一种用于无线电频率开关的电源电压产生单元包括分别被配置为接收第一控制信号和第二控制信号的第一输入和第二输入，其中第一控制信号和第二控制信号被配置为控制第一控制信号和第二控制信号中的哪一个 射频切换中的多个路径被使能，并且至少一个输出被配置为输出从用于操作射频开关的第一控制信号或第二控制信号中的至少一个导出的辅助电压。 电源电压可以是用于对用于使所选择的分支作为隔离分支或分流支路的反相电路供电的电压。
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公开(公告)号：US20160241236A1
公开(公告)日：2016-08-18
申请号：US15012859
申请日：2016-02-02
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Ching-Wen Hsu
IPC: H03K17/687
CPC classification number: H03K17/6871 , H01P1/10 , H01P1/15 , H03K17/693
Abstract: A single-pole multi-throw switch includes a set of selection switches. The set of selection switches includes a set of primary switches, a first set and a second set of secondary switches. The primary set of switches includes a plurality of primary transistors coupled in series for transmitting radio frequency signals. The first set of secondary switches is coupled to the primary set of switches and includes a plurality of first secondary transistors coupled in series for transmitting the radio frequency signals when the primary transistors and the first secondary transistors are turned on. The second set of secondary switches is coupled to the primary set of switches and includes a plurality of second secondary transistors coupled in series for transmitting the radio frequency signals when the primary transistors and the second secondary transistors are turned on.
Abstract translation: 单刀多掷开关包括一组选择开关。 选择开关组包括一组主开关，第一组和第二组二次开关。 主要的开关组包括串联耦合的多个主晶体管用于发射射频信号。 第一组次级开关耦合到初级开关组，并且包括串联耦合的多个第一次级晶体管，用于当主晶体管和第一二级晶体管导通时发射射频信号。 第二组次级开关耦合到初级开关组，并且包括串联耦合的多个第二次级晶体管，用于在主晶体管和第二次级晶体管导通时发射射频信号。
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114.发明申请公开(公告)号：US20160087609A1
公开(公告)日：2016-03-24
申请号：US14957610
申请日：2015-12-03
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen
IPC: H03K3/012 , H03K17/687
CPC classification number: H03K3/012 , H03K17/007 , H03K17/687 , H03K17/693
Abstract: An power voltage generating unit for a radio frequency switch includes a first input and a second input respectively configured to receive a first control signal and a second control signal, wherein the first control signal and the second control signal are configured to control which one of a plurality of paths in the radio frequency switch is enabled, and at least one output, configured to output an auxiliary voltage, derived from at least one of the first control signal or the second control signal, that is used to operate the radio frequency switch. The power voltage may be a voltage used to power an inverting circuit used to enable a selected branch as an isolation branch or shunt branch.
Abstract translation: 一种用于无线电频率开关的电源电压产生单元包括分别被配置为接收第一控制信号和第二控制信号的第一输入和第二输入，其中第一控制信号和第二控制信号被配置为控制第一控制信号和第二控制信号中的哪一个 射频切换中的多个路径被使能，并且至少一个输出被配置为输出从用于操作射频开关的第一控制信号或第二控制信号中的至少一个导出的辅助电压。 电源电压可以是用于对用于使所选择的分支作为隔离分支或分流支路的反相电路供电的电压。
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公开(公告)号：US20150303978A1
公开(公告)日：2015-10-22
申请号：US14636189
申请日：2015-03-03
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen
CPC classification number: H04B1/44 , H04B1/525 , H04W52/0274 , Y02D70/40
Abstract: A radio frequency (RF) switching module and a control method of the RF switching module are described. The RF switching module has 2 switches, and the control method includes starting to turn off a first switch of the RF switching module, starting to turn on a second switch of the RF switching module after the first switch is turned off for a first predetermined time, wherein starting to turn off the first switch and starting to turn on the second switch is finished during a transition period from a first mode to a second mode.
Abstract translation: 描述射频（RF）切换模块和RF切换模块的控制方法。 RF开关模块具有2个开关，控制方法包括开始关闭RF开关模块的第一开关，在第一开关断开第一预定时间之后开始接通RF开关模块的第二开关 其中开始关闭第一开关并开始接通第二开关，在从第一模式到第二模式的转变期间结束。
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Patent Agency Ranking
公开(公告)号：US20140253088A1
公开(公告)日：2014-09-11
申请号：US14197220
申请日：2014-03-05
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Chuan-Jane Chao
IPC: G05F3/16
CPC classification number: H03F3/45085
Abstract: A fixed voltage generating circuit includes a current mirror, a differential pair, and a resistor coupled to the current mirror. A node of the resistor is coupled to a voltage source. The differential pair includes two resistors coupled to the voltage source to enable the differential pair outputting a stable output voltage.
Abstract translation: 固定电压产生电路包括电流镜，差分对和耦合到电流镜的电阻。 电阻器的节点耦合到电压源。 差分对包括耦合到电压源的两个电阻器，以使差分对输出稳定的输出电压。
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公开(公告)号：US20130321061A1
公开(公告)日：2013-12-05
申请号：US13784835
申请日：2013-03-05
Applicant: RICHWAVE TECHNOLOGY CORP.
Inventor： Chih-Sheng Chen
IPC: H03K17/16
CPC classification number: H03K17/16 , H03K17/161
Abstract: An RF switch includes a transistor and a compensation capacitor circuit. The compensation capacitor circuit includes a first compensation capacitor and a second compensation capacitor of the same capacitance. The compensation capacitor circuit is used to improve voltage distribution between a control node and a first node of the transistor and between the control node and a second node of the transistor.
Abstract translation: RF开关包括晶体管和补偿电容器电路。 补偿电容电路包括具有相同电容的第一补偿电容器和第二补偿电容器。 补偿电容器电路用于改善控制节点和晶体管的第一节点之间以及控制节点和晶体管的第二节点之间的电压分布。
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公开(公告)号：US20250132741A1
公开(公告)日：2025-04-24
申请号：US18389719
申请日：2023-12-19
Applicant: RichWave Technology Corp
Inventor： Tien-Yun Peng , Chih-Sheng Chen
IPC: H03F3/45
Abstract: An amplification circuit includes an amplifier, a first mirror-branch circuit, a second mirror-branch circuit, a first variable current source, a second variable current source, and an operation amplifier. The amplifier can receive an operation current and an input signal, and output the amplified input signal. The first mirror-branch circuit and the second mirror-branch circuit are coupled to the amplifier. The first variable current source is coupled to the first mirror-branch circuit and provides a first reference current. The second variable current source is coupled to the second mirror-branch circuit and provides a second reference current. The operation amplifier is coupled to the first mirror-branch circuit, the second mirror-branch circuit and the amplifier. The first reference current and the second reference current are related to the operation current.
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公开(公告)号：US12206403B2
公开(公告)日：2025-01-21
申请号：US17510399
申请日：2021-10-26
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Yi-Bin Yang
IPC: H03K17/693 , H01P1/10 , H04B1/44
Abstract: A switch device structure includes RF1-st and RF2-nd input terminals, RFA-th, RFB-th and RFC-th output terminals, P2A-th, P1B-th and P1C-th paths, and first and second common paths. The P2A-th path includes a first terminal, and a second terminal coupled to the RFA-th output terminal. The P1B-th path includes a first terminal, and a second terminal coupled to the RFB-th output terminal. The P1C-th path includes a first terminal, and a second terminal coupled to the RFC-th output terminal. The first common path is coupled to the RF2-nd input terminal and the first terminal of the P2A-th path. The second common path is coupled to the RF1-st input terminal, the first terminal of the P1B-th path, and the first terminal of the P1C-th path. The first and second common paths cross each other on different planes to form a crossover.
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公开(公告)号：US12184318B2
公开(公告)日：2024-12-31
申请号：US17688916
申请日：2022-03-08
Applicant: RichWave Technology Corp.
Inventor： Yu-Siang Huang , Chih-Sheng Chen
Abstract: A radio frequency (RF) switch includes a signal terminal, a reference voltage terminal and a shunt switch path. The shunt switch path includes a first sub-shunt circuit and a second sub-shunt circuit. The second sub-shunt circuit includes a first transistor and a second transistor coupled in parallel. When switched to a first state, the RF switch has first impedance; when switched to a second state, the RF switch has second impedance; and when switched to a third state, the RF switch has third impedance. The first impedance, the second impedance, and the third impedance are different.
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