-
-
公开(公告)号：KR1020150108992A
公开(公告)日：2015-10-01
申请号：KR1020140031720
申请日：2014-03-18
Applicant: 한국전자통신연구원
CPC classification number: H03K17/122 , H02M3/1588 , H02M2001/0009 , H02M2001/0048 , H03K2217/0036 , Y02B70/1466 , Y02B70/1491
Abstract: 발전소자용 DC-DC 승압형변환기는양단전압및 전원전류를발생시키는발전소자, 제1 노드와제2 노드사이에연결되고, 전원전류에의해충전되는인덕터, 제2 노드와제3 노드사이에연결되는제1 복수의트랜지스터들을포함하는제1 스위치부, 제2 노드와접지단자에연결되는제2 복수의트랜지스터들을포함하는제2 스위치부, 양단전압을감지하여, 발전소자로부터출력되는입력전압이양단전압과소정의비율로유지되도록제어신호를제1 및제2 스위치부에출력하는최대전력추종제어부, 발전소자및 상기인덕터사이에연결되며, 상기전원전류의크기에따른상기제1 및제2 스위치부의활성화되는상기제1 및제2 복수의트랜지스터의개수를제어하는신호를출력하는전류감지부, 및신호를통해제1 및제2 스위치부의제1 및제2 복수의트랜지스터들을연결하는스위치선택부를포함한다.
Abstract translation: 用于发电装置的DC-DC升压转换器包括产生电力电流的电力产生装置和其两端之间的电压，连接在第一节点和第二节点之间并且被充电的电力的电感器， 第一开关单元，包括连接在第二节点和第三节点之间的多个第一晶体管，第二开关单元，其包括连接到第二节点的多个第二晶体管和接地端子，最大功率点 跟踪控制单元，其感测其两端之间的电压，并且向第一和第二开关单元输出控制信号，以将其从发电设备输出的输入电压与其两端之间的电压设定为预设比;电流感测单元 其连接在发电装置和电感器之间，并且输出用于控制第一和第二转子的数量的信号 根据功率电流的振幅激活的第一和第二开关单元的开关，以及通过该信号连接第一和第二开关单元的第一和第二晶体管的开关选择单元。
-
公开(公告)号：KR101239755B1
公开(公告)日：2013-03-12
申请号：KR1020090071284
申请日：2009-08-03
Abstract: 본 발명은 주파수 합성기에 대한 것으로, 이 장치는 기준 주파수와 피드백 주파수를 수신하고 비교하여 비교 신호를 출력하는 주파수/위상 검출기, 상기 비교 신호를 수신하여 상기 비교 신호에 대응하는 전류를 출력하는 전하펌프, 상기 전하 펌프의 출력 전류에 대응하여 전압을 생성하는 저역통과필터, 상기 저역통과필터의 전압을 수신하고, 이를 증폭하여 부스팅 전압을 생성하고, 수신 전압에 대응하는 주파수를 출력하는 전압제어 발진기, 그리고 상기 전압제어 발진기의 부스팅 전압을 수신하고, 직류 변환하여 상기 전하펌프의 전원 전압으로 인가하는 직류전압 변환기를 포함한다. 따라서, 전하 펌프의 공급 전원을 전압 제어 발진기로부터 제공함으로써, 주파수 합성기는 광대역, 저 위상잡음, 외부환경 또는 공정편차에 의한 성능저하 방지의 우수한 특성을 갖는다.
주파수 합성기, 전압 제어 발진기, 전하 펌프, 전원전압, 부스팅-
公开(公告)号：KR1020120064513A
公开(公告)日：2012-06-19
申请号：KR1020100125786
申请日：2010-12-09
Applicant: 한국전자통신연구원
IPC: H03L7/087
CPC classification number: H03L7/07 , H03K5/133 , H03L7/087 , H03L7/0891 , H03L7/091 , H03L7/093 , H03L7/0995
Abstract: PURPOSE: A PLL(Phase Locked Loop) circuit having a multiple-loop is provided to eliminate spur noises and phase noises from an output signal by reducing ripples from an output electric charge of a charge pump and a control signal of a ring oscillator. CONSTITUTION: A frequency detector(110) receives signals having a reference frequency and a feedback signal. A phase detector(120) detects the phase difference of a filtering signal and a reference signal. A first charge pump(130) controls a first output electric charge in response to a first up signal and a first down signal. A second charge pump(140) controls a second output electric charge in response to a second up signal and a second down signal. A pulse generator(150) generates a pulse signal having a predetermined pulse length in response to the reference signal. A loop filter(160) is composed of a low-pass filter. A voltage controlled oscillator(170) outputs an oscillation signal having a frequency corresponding to a control voltage. A divider(180) generates frequency division signals having the frequency lowered by a predefined dividing ratio. A low-pass filter(190) filters the oscillation signal outputted from the voltage controlled oscillator.
Abstract translation: 目的：提供具有多回路的PLL（锁相环）电路，通过减少来自电荷泵的输出电荷和环形振荡器的控制信号的波纹来消除来自输出信号的杂散噪声和相位噪声。 构成：频率检测器（110）接收具有参考频率和反馈信号的信号。 相位检测器（120）检测滤波信号和参考信号的相位差。 第一电荷泵（130）响应于第一上升信号和第一下降信号控制第一输出电荷。 响应于第二上升信号和第二下降信号，第二电荷泵（140）控制第二输出电荷。 脉冲发生器（150）响应于参考信号产生具有预定脉冲长度的脉冲信号。 环路滤波器（160）由低通滤波器构成。 压控振荡器（170）输出具有对应于控制电压的频率的振荡信号。 分频器（180）产生频率降低预定分频比的频分信号。 低通滤波器（190）对从压控振荡器输出的振荡信号进行滤波。
-
公开(公告)号：KR1020110011512A
公开(公告)日：2011-02-08
申请号：KR1020100021678
申请日：2010-03-11
Applicant: 한국전자통신연구원
CPC classification number: H03B5/1296 , H03B5/1215 , H03B5/1218 , H03B5/1228 , H03B5/1246 , H03B2200/009 , H03B2201/036
Abstract: PURPOSE: A voltage controlled generator is provided to operate in a differential mode and a common mode by independently connecting a complementary active circuit element to both sides of a resonant unit. CONSTITUTION: A first oscillator comprises transistors(M5-M8) such as a complementary active element connected to both ends of a resonant unit(60) of a transformer base through an N-PMOS cross-connection structure. A second oscillator comprises transistors(M1-M4) such as a complementary active element connected to both ends of a resonant unit(60) of a transformer base through a gate coupling structure. A double band voltage controlled oscillator is formed by binding the first and second oscillators.
Abstract translation: 目的：通过独立地将互补有源电路元件连接到谐振单元的两侧，提供电压发生器以在差模和共模下工作。 构成：第一振荡器包括通过N-PMOS交叉连接结构连接到变压器基座的谐振单元（60）两端的互补有源元件的晶体管（M5-M8）。 第二振荡器包括通过栅极耦合结构连接到变压器基座的谐振单元（60）两端的互补有源元件的晶体管（M1-M4）。 通过结合第一和第二振荡器形成双频带压控振荡器。
-
Patent Agency Ranking
公开(公告)号：KR1020100073948A
公开(公告)日：2010-07-01
申请号：KR1020090026593
申请日：2009-03-27
Applicant: 한국전자통신연구원
IPC: H03B5/24
CPC classification number: H03K3/0231 , H03B2201/0208 , H03K3/0322 , H03K5/135
Abstract: PURPOSE: A ring oscillator with a broadband output frequency is provided to simply change an oscillation frequency by controlling a control signal applied to the varactor. CONSTITUTION: Each delay cell comprises a transconductance unit(210), a reverse speed varying unit(230), and an output speed varying unit(270). The transconductance unit outputs a signal delayed for a preset time to first and second output nodes by reversing a first differential input signal of the delay cell. The reverse speed varying unit is connected to the transconductance unit. The reverse speed varying unit varies the revere speed of the first differential input signal according to the first control signal. An active load unit provides an active load to the transconductance unit by receiving a second differential input signal from the delay cell before two stages. The output speed varying unit varies the output speed of the differential output signal from the transconductance unit according to a second control signal.
Abstract translation: 目的：提供具有宽带输出频率的环形振荡器，通过控制施加到变容二极管的控制信号来简单地改变振荡频率。 构成：每个延迟单元包括跨导单元（210），反向速度变化单元（230）和输出速度变化单元（270）。 跨导单元通过反转延迟单元的第一差分输入信号来输出延迟预设时间的信号到第一和第二输出节点。 反转速度变化单元连接到跨导单元。 反转速度变化单元根据第一控制信号改变第一差分输入信号的转向速度。 有源负载单元通过在两级之前从延迟单元接收第二差分输入信号来向跨导单元提供有源负载。 输出速度变化单元根据第二控制信号改变来自跨导单元的差分输出信号的输出速度。
-
公开(公告)号：KR1020100070978A
公开(公告)日：2010-06-28
申请号：KR1020090071284
申请日：2009-08-03
CPC classification number: H03L7/0898 , H03B5/24 , H03L7/099 , H03L7/18
Abstract: PURPOSE: A low voltage frequency synthesizer is provided to prevent performance deterioration caused by a broadband, low phase noise, external environment, and process deviation by supplying the supply power of a charge pump from a voltage-controlled oscillator. CONSTITUTION: A frequency/phase detector(140) receives and compares a reference frequency and a feedback frequency and outputs comparison signal. A charge pump(110) receives the comparison signal and outputs a current that corresponds to the comparison signal. A low band pass filter(120) generates a voltage in correspondence to the output current of the charge pump. A voltage-controlled oscillator receives the message of the low band pass filter. A DC voltage converter(150) receives the boosting voltage of the voltage-controlled oscillator.
Abstract translation: 目的：提供低压频率合成器，通过从压控振荡器提供电荷泵的电源，防止宽带，低相位噪声，外部环境和工艺偏差引起的性能恶化。 构成：频率/相位检测器（140）接收并比较参考频率和反馈频率并输出比较信号。 电荷泵（110）接收比较信号并输出对应于比较信号的电流。 低通滤波器（120）产生对应于电荷泵的输出电流的电压。 压控振荡器接收低通滤波器的消息。 直流电压转换器（150）接收压控振荡器的升压电压。
-
公开(公告)号：KR1020090030102A
公开(公告)日：2009-03-24
申请号：KR1020070095432
申请日：2007-09-19
Applicant: 한국전자통신연구원
IPC: H03B5/08
CPC classification number: H03B5/1215 , H03B5/1253 , H03B5/1256 , H03B5/1293
Abstract: A voltage-controlled oscillator with wide frequency range is provided to increase the range of oscillation frequency by increasing variable capacitance by a plurality of MOS transistors connected to a LC resonance circuit. In a voltage-controlled oscillator, an LC resonance circuit(230) oscillates a frequency according to a control voltage and an amplifier circuit(250) amplifies the oscillation frequency. The LC resonance circuit includes a first and a second inductor, a variable capacitance unit, and a second variable capacitance(220). The first capacitance unit has a first and second varator which are connected with each other in parallel. The first variable capacitance has a first capacitance according to a first control voltage, and second variable capacitance has a firs and a second transistor which are connected with the varator in parallel and it has a second capacitance according to a second control voltage.
Abstract translation: 提供宽频率范围的压控振荡器，通过连接到LC谐振电路的多个MOS晶体管增加可变电容来增加振荡频率的范围。 在压控振荡器中，LC谐振电路（230）根据控制电压振荡频率，放大电路（250）放大振荡频率。 LC谐振电路包括第一和第二电感器，可变电容单元和第二可变电容器（220）。 第一电容单元具有彼此并联连接的第一和第二变化器。 第一可变电容根据第一控制电压具有第一电容，第二可变电容具有第一和第二晶体管，其与变容器并联连接，并且根据第二控制电压具有第二电容。
-
公开(公告)号：KR1020080051676A
公开(公告)日：2008-06-11
申请号：KR1020060123205
申请日：2006-12-06
Applicant: 한국전자통신연구원
IPC: H03M1/12
CPC classification number: H03M1/0678 , H03M1/162
Abstract: An algorithmic analog-to-digital converter is provided to minimize linearity restriction derived from a capacitor mismatch by adding two digital signals outputted through two different capacitors when one analog signal is inputted. An algorithmic analog-to-digital converter includes an SHA(Sample-and-Hold Amplifier)(10) sampling and holding an inputted analog voltage. Two flash ADCs(30) converts one inputted analog signal to two digital signals(n1,n2) through two different capacitor and outputs two digital signals. One MDAC(Multiplying Digital-to-Analog Converter)(50) amplifies a difference between an outputted voltage of the SHA and a reference voltage through two different capacitor according to the digital signal outputted from the flash ADC and outputs to the flash ADC again. A continuous multi-phase clock generating circuit(60) differentially outputs an operation clock frequency according to a required resolution.
Abstract translation: 提供了一种算法模数转换器，通过在输入一个模拟信号时，通过增加通过两个不同电容器输出的两个数字信号来最小化从电容器失配导致的线性限制。 算法模数转换器包括采样和保持输入的模拟电压的SHA（采样保持放大器）（10）。 两个闪存ADC（30）通过两个不同的电容将一个输入的模拟信号转换为两个数字信号（n1，n2），并输出两个数字信号。 一个MDAC（乘法数模转换器）（50）根据从闪存ADC输出的数字信号，通过两个不同的电容放大SHA的输出电压和参考电压之间的差值，并再次输出到闪存ADC。 连续多相时钟发生电路（60）根据所需的分辨率差分地输出工作时钟频率。
-
公开(公告)号：KR100760196B1
公开(公告)日：2007-09-20
申请号：KR1020060055270
申请日：2006-06-20
Applicant: 한국전자통신연구원
IPC: H03B5/08
CPC classification number: H03B5/1228 , H03B5/1215 , H03B5/1243 , H03B5/1265 , H03B5/1271 , H03B2201/0208 , H03B2201/0266 , H03J2200/10
Abstract: 본 발명은 재구성이 가능한 멀티밴드 멀티모드 무선 송수신기에 사용되는 LC공조 전압제어발진기(voltage-controlled oscillator:VCO)에 관한 것으로 광대역 멀티밴드의 주파수를 발생시키기 위해 커패시터 뱅크와 스위칭할 수 있는 인덕터가 내장된 구조이다. 본 발명의 적응성 에미터-축퇴 부성 저항셀을 내장한 LC공조 전압제어발진기에서 커패시터 뱅크에 의한 발진진폭의 불균형을 보상하기 위해 꼬리전류원 대신에 상기 적응성 에미터-축퇴 부성 저항셀을 사용하여 상기 꼬리전류원에 의한 상기 LC공조 전압제어발진기의 위상잡음 열화를 방지한다.
본 발명의 LC 공조 전압제어발진기는, 발진파의 주파수를 결정하는 인덕턴스 성분을 제공하기 위한 인덕턴스부; 발진파의 주파수를 결정하며 제어 비트에 따라 이산적으로 정해지는 커패시턴스 성분을 제공하기 위한 이산 커패시터 뱅크; 및 발진파의 진폭을 일정하게 하기 위해, 상기 제어 비트에 따라 이산적으로 결정되는 부(-)성 저항 성분을 제공하기 위한 이산 부성 저항셀을 포함하는 것을 특징으로 한다.
전압제어발진기, VCO, LC 발진기, 다중 대역 발진기, 꼬리전류원
-
-
-
-
-
-
-
-
-
Search Results
114
records
(took 0.024 seconds)
