-
公开(公告)号：US09859847B2
公开(公告)日：2018-01-02
申请号：US14843580
申请日：2015-09-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ji-Seon Paek , Seung-Chul Lee , Young-Hwan Choo , Sung-Jun Lee , Jun-Hee Jung , Thomas Byunghak Cho , Jeong-Hyun Choi
CPC classification number: H03F1/0227 , H03F1/223 , H03F3/193 , H03F3/245 , H03F3/3064 , H03F2200/408 , H03F2200/432 , H03F2200/451 , H03F2203/30015
Abstract: A parallel output linear amplifier is provided that includes a transconductance amplifier configured to receive an analog input signal from an input terminal and amplify the analog input signal. The parallel output linear amplifier also includes a first pre-amplifier connected to the transconductance amplifier and operated using a floating drive voltage, and a cascode class AB amplifier connected to the first pre-amplifier and configured to provide an amplified signal to an output terminal. The parallel output linear amplifier further includes a second pre-amplifier configured connected to the transconductance amplifier and operated using the floating drive voltage, and a cascade class AB amplifier connected to the second pre-amplifier and configured to provide an amplified signal to the output terminal.
-
2.发明申请METHOD AND APPARATUS FOR SUPPLYING POWER TO A RADIO FREQUENCY POWER AMPLIFIER 有权用于向无线电频率功率放大器供电的方法和装置公开(公告)号：US20160065139A1
公开(公告)日：2016-03-03
申请号：US14843512
申请日：2015-09-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sung-Jun LEE , Ji-Seon Paek , Seung-Chul Lee , Yong-Sik Youn , Jun-Hee Jung , Thomas Byunghak Cho , Sang-Wook Han
CPC classification number: H03F1/0227 , H03F1/0222 , H03F1/3223 , H03F3/19 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/72 , H03F2200/102 , H03F2200/375 , H03F2200/411 , H03F2200/432 , H03F2200/451 , H03F2200/78 , H03F2203/7227 , H03G3/3042 , H04B1/0475 , H04B2001/0441
Abstract: A method and a supply modulator (SM) are provided for supplying power from a wireless transmitter to a radio frequency (RF) power amplifier. A power control signal input from a modem is received. A reference voltage is determined. An operating mode of the SM is changed by controlling a level of the reference voltage. A voltage is determined based on the level of a reference voltage. When the operating mode of the SM is an ET mode, a first output signal from a linear regulator and a second output signal from a switching regulator are combined to obtain a combined result, and the combined result is output. The first output signal is based on the voltage. When the operating mode of the SM is an APT mode, the voltage based on the reference voltage is output.
Abstract translation: 提供了一种用于从无线发射机向射频（RF）功率放大器供电的方法和电源调制器（SM）。 从调制解调器输入的功率控制信号被接收。 确定参考电压。 通过控制参考电压的电平来改变SM的工作模式。 基于参考电压的电平来确定电压。 当SM的工作模式是ET模式时，来自线性调节器的第一输出信号和来自开关调节器的第二输出信号被组合以获得组合结果，并且输出组合结果。 第一个输出信号基于电压。 当SM的工作模式为APT模式时，输出基于参考电压的电压。
-
3.发明授权Apparatus and method for removing noise of power amplifier in mobile communication system 有权移动通信系统功率放大器噪声去除装置及方法公开(公告)号：US09590665B2
公开(公告)日：2017-03-07
申请号：US14723957
申请日：2015-05-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyung-Sun Lim , Seung-Chul Lee , Thomas Byung-Hak Cho , Ji-Seon Paek , Jun-Seok Yang , Jun-Hee Jung
CPC classification number: H04B1/0475 , H03F1/0227 , H03F3/19 , H03F3/217 , H03F3/24 , H03F3/245 , H03F2200/102 , H03F2200/111 , H03F2200/336 , H03F2200/432 , H03F2200/451 , H03F2200/555 , H04B2001/0408
Abstract: A transmitter in a wireless communication system is provided. The transmitter includes a baseband signal processor for detecting an envelope signal, a supply modulator (SM) for producing power to be supplied to a power amplifier using the detected envelope signal, and the power amplifier for receiving voltage from the SM and for amplifying power of a transmit signal. The SM generates a compensation signal corresponding to switching noise generated via switching amplification, and adds the compensation signal and the switching noise. The amplifier of the wireless communication system can produce low switching noise, and the envelope tracking power amplifier can prevent reception degradation due to the noise of the supply modulator.
Abstract translation: 提供了一种无线通信系统中的发射机。 发射机包括用于检测包络信号的基带信号处理器，用于产生使用检测到的包络信号提供给功率放大器的功率的电源调制器（SM）以及用于从SM接收电压并用于放大功率的功率放大器 发送信号。 SM产生对应于通过开关放大产生的开关噪声的补偿信号，并补偿补偿信号和开关噪声。 无线通信系统的放大器可以产生低开关噪声，并且包络跟踪功率放大器可以防止由于电源调制器的噪声引起的接收劣化。
-
4.发明授权公开(公告)号：US09525384B2
公开(公告)日：2016-12-20
申请号：US14843512
申请日：2015-09-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sung-Jun Lee , Ji-Seon Paek , Seung-Chul Lee , Yong-Sik Youn , Jun-Hee Jung , Thomas Byunghak Cho , Sang-Wook Han
CPC classification number: H03F1/0227 , H03F1/0222 , H03F1/3223 , H03F3/19 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/72 , H03F2200/102 , H03F2200/375 , H03F2200/411 , H03F2200/432 , H03F2200/451 , H03F2200/78 , H03F2203/7227 , H03G3/3042 , H04B1/0475 , H04B2001/0441
Abstract: A method and a supply modulator (SM) are provided for supplying power from a wireless transmitter to a radio frequency (RF) power amplifier. A power control signal input from a modem is received. A reference voltage is determined. An operating mode of the SM is changed by controlling a level of the reference voltage. A voltage is determined based on the level of a reference voltage. When the operating mode of the SM is an ET mode, a first output signal from a linear regulator and a second output signal from a switching regulator are combined to obtain a combined result, and the combined result is output. The first output signal is based on the voltage. When the operating mode of the SM is an APT mode, the voltage based on the reference voltage is output.
Abstract translation: 提供了一种用于从无线发射机向射频（RF）功率放大器供电的方法和电源调制器（SM）。 从调制解调器输入的功率控制信号被接收。 确定参考电压。 通过控制参考电压的电平来改变SM的工作模式。 基于参考电压的电平来确定电压。 当SM的工作模式是ET模式时，来自线性调节器的第一输出信号和来自开关调节器的第二输出信号被组合以获得组合结果，并且输出组合结果。 第一个输出信号基于电压。 当SM的工作模式为APT模式时，输出基于参考电压的电压。
-
-
-
Search Results
4
records
(took 0.014 seconds)
