-
公开(公告)号：US20190199220A1
公开(公告)日：2019-06-27
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.
-
公开(公告)号：US09438302B2
公开(公告)日：2016-09-06
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。
-
公开(公告)号：US20160226140A1
公开(公告)日：2016-08-04
申请号：US15093748
申请日：2016-04-08
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen
CPC classification number: H01Q1/525 , H03H7/461 , H04B1/0053 , H04B1/18
Abstract: An antenna system includes N integrated passive components (IPCs). A first end of each IPC of the N IPCs is directly configured to couple to an antenna for receiving signals of a band corresponding to the IPC and filtering signals of bands corresponding to other IPCs of the N IPCs. The antenna system can prevent signals of various bands from interfering with each other, reduces parasitic capacitance effect, and further improves nonlinear distortion.
Abstract translation: 天线系统包括N个无源组件（IPC）。 N个IPC的每个IPC的第一端被直接配置成耦合到天线，用于接收对应于IPC的频带的信号和对应于N个IPC的其他IPC的频带的过滤信号。 天线系统可以防止各种频带的信号相互干扰，降低寄生电容效应，进一步提高非线性失真。
-
公开(公告)号：US20160172969A1
公开(公告)日：2016-06-16
申请号：US14886343
申请日：2015-10-19
Applicant: Richwave Technology Corp.
Inventor： Chih-Sheng Chen , Tien-Yun Peng
IPC: H02M3/07
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。
-
公开(公告)号：US09088252B2
公开(公告)日：2015-07-21
申请号：US14197220
申请日：2014-03-05
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Chuan-Jane Chao
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。
-
Patent Agency Ranking
公开(公告)号：US20140253087A1
公开(公告)日：2014-09-11
申请号：US13865205
申请日：2013-04-18
Applicant: RICHWAVE TECHNOLOGY CORP.
Inventor： Chih-Sheng Chen
IPC: G05F3/16
CPC classification number: G05F3/16 , H03F3/45085 , H03F2203/45244 , H03F2203/45392 , H03F2203/45508
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 for enabling the differential pair to output a fixed 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，用于使差分对能够输出固定电压。
-
公开(公告)号：US20250158580A1
公开(公告)日：2025-05-15
申请号：US18391681
申请日：2023-12-21
Applicant: RichWave Technology Corp.
Inventor： Tien-Yun Peng , Ching-Wen Hsu , Chih-Sheng Chen
Abstract: An amplification circuit includes a radio-frequency input terminal, a radio-frequency output terminal, a first amplification stage circuit, a second amplification stage circuit, and a variable impedance path. The radio-frequency input terminal is used to receive a radio-frequency signal. The radio-frequency output terminal is used to output the amplified radio-frequency signal. The first amplification stage circuit is coupled to the radio-frequency input terminal and the radio-frequency output terminal. The second amplification stage circuit is coupled to the radio-frequency input terminal and the radio-frequency output terminal. The variable impedance path is coupled to the first amplification stage circuit and the second amplification stage circuit. When the second amplification stage circuit is enabled, the variable impedance path has a low impedance. When the second amplification stage circuit is disabled, the variable impedance path has a high impedance.
-
公开(公告)号：US12113495B2
公开(公告)日：2024-10-08
申请号：US17499831
申请日：2021-10-12
Applicant: RICHWAVE TECHNOLOGY CORP.
Inventor： Chih-Sheng Chen , Ching-Wen Hsu
CPC classification number: H03F3/505 , H03F3/45179 , H03F1/12 , H03F2200/387
Abstract: An amplifier circuit having an adjustable gain is provided. The amplifier circuit includes an input terminal, an output terminal, an amplifier, and an attenuation circuit. The input terminal receives an input signal, which is in turn received by an input terminal of the amplifier. An output terminal of the amplifier outputs the input signal that is amplified. The attenuation circuit is coupled between the output terminal of the amplifier and the output terminal to provide a plurality of attenuation to the input signal that is amplified and generate a first attenuation signal, or between the input terminal and the output terminal to provide the plurality of attenuations to the input signal and generate a second attenuation signal. A difference between an impedance value of the input terminal of the attenuation circuit and an impedance value of the output terminal of the attenuation circuit is within a predetermined range.
-
公开(公告)号：US12040757B2
公开(公告)日：2024-07-16
申请号：US17378802
申请日：2021-07-19
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Ching-Wen Hsu , Hsien-Wei Ke
CPC classification number: H03F3/211 , H03F3/72 , H03F1/565 , H03F2200/111 , H03F2200/222 , H03F2200/372 , H03F2200/387 , H03F2203/7209
Abstract: An amplifier circuit includes a first amplifier and a second amplifier. The first amplifier receives a first signal and generates a first amplification signal accordingly. The second amplifier receives a second signal and generates a second amplification signal accordingly. The first signal is related to a first frequency band, and the second signal is related to a second frequency band different from the first frequency band. When one of the first amplifier and the second amplifier is in use, the other one of the first amplifier and the second amplifier is unused. The first amplifier and second amplifier are coupled to a reference voltage terminal through a common node. The first amplifier includes a switch coupled between the common node and a stage of the first amplifier, and the switch can be controlled for reducing the loading effect caused by the first amplifier on the second amplifier.
-
公开(公告)号：US20240223133A1
公开(公告)日：2024-07-04
申请号：US18202963
申请日：2023-05-29
Applicant: RichWave Technology Corp.
Inventor： Chang-Heng Chen , Tien-Yun Peng , Chih-Sheng Chen
CPC classification number: H03F1/30 , H03F3/245 , H03F2200/451
Abstract: A radio-frequency circuit can include a power amplifier, a first bias circuit and a second bias circuit. The power amplifier can include an input terminal used to receive a radio-frequency signal, and an output terminal used to output an amplified radio-frequency signal. The first bias circuit can include a first output terminal coupled to the input terminal of the power amplifier through a common node. The second bias circuit can include a second output terminal and a current adjustment circuit, where the second output terminal can be coupled to the common node, and the current adjustment circuit can include a transistor. The transistor can include a first terminal coupled to the second output terminal, a second terminal used to receive a reference voltage, and a control terminal.
-
-
-
-
-
-
-
-
-
Search Results
159
records
(took 0.066 seconds)
