公开(公告)号：US20150349816A1

公开(公告)日：2015-12-03

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

IPC: H04B1/04 ,  H03F3/19 ,  H03F3/24

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）和用于从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。

公开(公告)号：US20150061764A1

公开(公告)日：2015-03-05

申请号：US14016704

申请日：2013-09-03

Applicant: Samsung Electronics Co. Ltd.

Inventor： Jong-Woo LEE ,  Thomas Byung-Hak CHO ,  Jae-Hyun LIM

IPC: H03F3/45

CPC classification number: H03F3/183 ,  H03F3/45183 ,  H03F3/45475 ,  H03F3/45636 ,  H03F2200/21 ,  H03F2200/555 ,  H03F2203/45522 ,  H03F2203/45528 ,  H03F2203/45591 ,  H03F2203/45594 ,  H03F2203/45686 ,  H03F2203/45702 ,  H03G3/3005

Abstract: An analog amplifier for recovering an abnormal operation of a common-mode feedback is provided. An analog variable amplifier includes a first input transistor and a second input transistor, a first output transistor and a second output transistor, a third transistor and a fourth transistor, a first current source, a fifth transistor and a sixth transistor, and a second current source. The first input transistor and the second input transistor amplify a bias current depending on a magnitude of a first input voltage and a second input voltage. The first output transistor and the second output transistor output the amplified bias current. The third transistor and the fourth transistor receive an output voltage of the first output transistor as an input and amplifying the received output voltage. The first current source provides a predetermined current between the first output transistor and the third transistor.

Abstract translation: 提供了用于恢复共模反馈的异常操作的模拟放大器。 模拟可变放大器包括第一输入晶体管和第二输入晶体管，第一输出晶体管和第二输出晶体管，第三晶体管和第四晶体管，第一电流源，第五晶体管和第六晶体管，以及第二电流 资源。 第一输入晶体管和第二输入晶体管根据第一输入电压和第二输入电压的幅度来放大偏置电流。 第一输出晶体管和第二输出晶体管输出放大的偏置电流。 第三晶体管和第四晶体管接收第一输出晶体管的输出电压作为输入并放大接收的输出电压。 第一电流源在第一输出晶体管和第三晶体管之间提供预定电流。

公开(公告)号：US20170163227A9

公开(公告)日：2017-06-08

申请号：US14016704

申请日：2013-09-03

Applicant: Samsung Electronics Co. Ltd.

Inventor： Jong-Woo LEE ,  Thomas Byung-Hak CHO ,  Jae-Hyun LIM

IPC: H03F3/45

CPC classification number: H03F3/183 ,  H03F3/45183 ,  H03F3/45475 ,  H03F3/45636 ,  H03F2200/21 ,  H03F2200/555 ,  H03F2203/45522 ,  H03F2203/45528 ,  H03F2203/45591 ,  H03F2203/45594 ,  H03F2203/45686 ,  H03F2203/45702 ,  H03G3/3005

Abstract: An analog amplifier for recovering an abnormal operation of a common-mode feedback is provided. An analog variable amplifier includes a first input transistor and a second input transistor, a first output transistor and a second output transistor, a third transistor and a fourth transistor, a first current source, a fifth transistor and a sixth transistor, and a second current source. The first input transistor and the second input transistor amplify a bias current depending on a magnitude of a first input voltage and a second input voltage. The first output transistor and the second output transistor output the amplified bias current. The third transistor and the fourth transistor receive an output voltage of the first output transistor as an input and amplifying the received output voltage. The first current source provides a predetermined current between the first output transistor and the third transistor.

公开(公告)号：US20170026051A1

公开(公告)日：2017-01-26

申请号：US15214125

申请日：2016-07-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Woo LEE ,  Thomas Byung-Hak CHO

IPC: H03M1/06 ,  H03M1/38

CPC classification number: H03M1/06 ,  H03F3/45475 ,  H03F3/45941 ,  H03F2203/45136 ,  H03F2203/45438 ,  H03M1/38

Abstract: A semiconductor device is provided that includes a first chip that generates a single signal by connecting a first signal line and a second signal line, to which differential signals are respectively provided, and outputs the single signal to a third signal line. The first chip is driven by a first power supply voltage. The semiconductor device also includes a second chip comprising an analog-to-digital converter (ADC) that receives the single signal through the third signal line, compares the single signal with a reference voltage, and outputs a digital signal based on the comparison. The semiconductor device also includes a controller that monitors the digital signal and adjusts the reference voltage to be approximately equivalent to the first power supply voltage.

Abstract translation: 提供一种半导体器件，其包括通过连接分别提供差分信号的第一信号线和第二信号线产生单个信号的第一芯片，并将该单个信号输出到第三信号线。 第一芯片由第一电源电压驱动。 半导体器件还包括第二芯片，其包括通过第三信号线接收单个信号的模数转换器（ADC），将单个信号与参考电压进行比较，并且基于该比较输出数字信号。 半导体器件还包括监视数字信号并将参考电压调节为大致等于第一电源电压的控制器。