公开(公告)号：US20210159794A1

公开(公告)日：2021-05-27

申请号：US16902349

申请日：2020-06-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Kyun CHO ,  Heon Kook KWON ,  Kwang Seon KIM ,  Tae Joong KIM ,  Kwangchun LEE ,  Jung Nam LEE ,  Jae Ho JUNG

IPC: H02M3/158

Abstract: A direct current-to-direct current (DC-DC) converter providing multiple operation modes includes a buck power stage configured to lower an input voltage, a boost power stage configured to increase the input voltage, and a multi-mode controller configured to control the buck power stage and the boost power stage, wherein the multi-mode controller is configured to generate a signal to control the buck power stage and the boost power stage according to the input voltage and an output voltage, and control the buck power stage and the boost power stage using the signal.

公开(公告)号：US20210036613A1

公开(公告)日：2021-02-04

申请号：US16939567

申请日：2020-07-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Kyun CHO ,  Tae Joong KIM ,  Kwang Chun LEE ,  Jung Nam LEE ,  Jae Ho JUNG

IPC: H02M3/158 ,  H02M3/157 ,  H02M1/38 ,  H02M1/08

Abstract: A boost direct current-to-direct current (DC-DC) converter using a delta-sigma modulator (DSM), the boost DC-DC converter may comprise a boost driving circuit outputting an output voltage to output terminals by boosting an input voltage, a resistance distribution circuit outputting a feedback voltage by distributing the output voltage of the boost driving circuit, a compensator outputting a compensated feedback voltage by compensating for the feedback voltage outputted by the resistance distribution circuit based on a reference voltage, a delta-sigma modulator outputting a digital signal by modulating the compensated feedback voltage and a duty controller outputting a duty control signal for controlling a switching duty of the boost driving circuit by receiving the output of the delta-sigma modulator.

公开(公告)号：US20150229274A1

公开(公告)日：2015-08-13

申请号：US14612801

申请日：2015-02-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Kyun CHO ,  Jae Ho JUNG ,  Kwangchun LEE

IPC: H03F1/02 ,  H03F3/45

CPC classification number: H03F1/083 ,  H03F3/45475 ,  H03F3/45941 ,  H03F2200/129 ,  H03F2200/153 ,  H03F2203/45114 ,  H03F2203/45424 ,  H03F2203/45521

Abstract: Provided is a fully differential signal system including a first amplification unit including first and second output terminals configured to output an output differential signal generated based on an input differential signal and a common mode feedback signal; a common mode detection unit configured to detect a common mode signal included in the output differential signal; a second amplification unit including a feedback signal output terminal configured to output the common mode feedback signal generated based on the detected common mode signal and a reference signal; a first stabilization unit connected between the first output terminal and the feedback signal output terminal; and a second stabilization unit connected between the second output terminal and the feedback signal output terminal. The fully differential signal system stably operates and an operation performance of the fully differential signal system is improved.

Abstract translation: 提供了一种全差分信号系统，包括：第一放大单元，包括第一和第二输出端子，第一和第二输出端子被配置为输出基于输入差分信号和共模反馈信号产生的输出差分信号; 共模检测单元，被配置为检测包括在所述输出差分信号中的共模信号; 第二放大单元，包括反馈信号输出端子，其被配置为输出基于检测到的共模信号产生的共模反馈信号和参考信号; 连接在第一输出端子和反馈信号输出端子之间的第一稳定单元; 以及连接在第二输出端子和反馈信号输出端子之间的第二稳定单元。 全差分信号系统稳定运行，提高了全差分信号系统的运行性能。

公开(公告)号：US20140159700A1

公开(公告)日：2014-06-12

申请号：US14098989

申请日：2013-12-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Kyun CHO ,  Jae Ho JUNG ,  Kwang Chun LEE

IPC: G05F3/16

CPC classification number: G05F3/16 ,  G05F3/30

Abstract: Disclosed is a bandgap reference voltage generator insensitive to changes of process, voltage, and temperature. A bandgap reference voltage generator may detect current having characteristic of CTAT and current having characteristic of PTAT which flow in a current compensation part included in an amplification part, and provide body voltage to one of two input transistors included in the amplification part in response to ratio of the two currents when the ratio is different from the preconfigured reference value. Thus, characteristics according to changes of parameters of elements and change of offset of the amplification part due to changes of PVT may be enhanced, and a characteristic of power supply rejection ratio (PSRR) may be enhanced.

Abstract translation: 公开了对工艺，电压和温度变化不敏感的带隙基准电压发生器。 带隙参考电压发生器可以检测具有CTAT特性的电流和具有在包括在放大部分中的电流补偿部分中流动的PTAT特性的电流，并且响应于比率而向包括在放大部分中的两个输入晶体管之一提供体电压 当该比率与预配置的参考值不同时，两个电流。 因此，可以增加由元件参数的变化引起的特性和由于PVT变化引起的放大部分偏移的变化，并且可以提高电源抑制比（PSRR）的特性。