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公开(公告)号:KR101456207B1
公开(公告)日:2014-11-03
申请号:KR1020130092749
申请日:2013-08-05
Applicant: 숭실대학교산학협력단
IPC: H03B5/12
CPC classification number: H03K5/04
Abstract: 본 발명은 스위칭 커패시터를 이용한 슬루 레이트 조절 장치에 관한 것이다. 본 발명에 따르면, 클럭 신호에 대응하여 동작하는 대상 회로에 연결되고, 상기 클럭 신호가 하이 상태일 때 상기 대상 회로에서 출력되는 신호의 상승 에지 기울기를 제어하는 제1 커패시터와, 상기 제1 커패시터와 병렬 연결되고 상기 클럭 신호의 반전 신호를 제어 신호로 입력받으며, 상기 클럭 신호가 로우 상태일 때 온 구동되는 스위치, 및 상기 스위치에 직렬 연결되고, 상기 클럭 신호가 로우 상태일 때 상기 대상 회로에서 출력되는 신호의 하강 에지 기울기를 제어하는 제2 커패시터를 포함하는 스위칭 커패시터를 이용한 슬루 레이트 조절 장치를 제공한다.
상기 스위칭 커패시터를 이용한 슬루 레이트 조절 장치에 따르면, 대상 회로의 전원 또는 접지 노드에 간단히 스위칭 커패시터를 부가하여 슬루 레이트를 조절함에 따라 복잡한 컨트롤 회로를 필요로 하지 않으며 설계가 용이한 이점이 있다.Abstract translation: 本发明涉及使用开关电容器的转换速率控制器。 使用根据本发明的开关电容器的提供的转换速率控制器包括:第一电容器,其连接到目标电路,其根据时钟信号进行操作,并且控制从所述第一电容器输出的信号的上升沿斜率 时钟信号处于高电平状态时的目标电路; 与第一电容器并联连接的开关接收时钟信号的反相信号的输入作为控制信号,并且当时钟信号处于低电平状态时被驱动导通; 以及第二电容器,其与开关连接,并且当时钟信号处于低电平状态时,控制从目标电路输出的信号的下降沿斜率。 使用开关电容器的转换速率控制器不需要复杂的控制电路,并且通过简单地将开关电容器添加到接地节点或目标电路的电源来控制转换速率而易于设计。
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公开(公告)号:KR101449864B1
公开(公告)日:2014-10-13
申请号:KR1020130086767
申请日:2013-07-23
Applicant: 숭실대학교산학협력단
Abstract: The present invention relates to a phase locked loop for suppressing harmonics. According to the present invention, a phase locked loop includes: a voltage-controlled oscillator which generates a N-times frequency signal corresponding to the N (N is an integer) times of an oscillation frequency signal as a differential signal, and outputs the N-times frequency signal; a frequency divider which divides the N-times frequency signal outputted as the differential signal by N and outputs the oscillation frequency signal; and a signal selector which selects two oscillation signal pairs having phase different from the differential signal among the four oscillation frequency signals. The N-times frequency signal outputted from the voltage-controlled oscillator provides a phase locked loop to suppress harmonics which are used to suppress N-th harmonic included in the oscillation frequency signal pair outputted from the signal selector. According to the phase locked loop to suppress the harmonics, the N-th harmonic signal near the oscillation frequency can be suppressed using the N-times frequency signal outputted from the voltage-controlled oscillator, and the suppression can be obtained without forming an additional feedback loop.
Abstract translation: 本发明涉及一种用于抑制谐波的锁相环。 根据本发明,锁相环包括:压控振荡器,其产生与振荡频率信号的N(N为整数)倍的N次频率信号作为差分信号,并输出N 频率信号; 分频器,其将输出的差分信号的N倍频率信号除以N,并输出振荡频率信号; 以及信号选择器,其选择在四个振荡频率信号中具有与差分信号不同的相位的两个振荡信号对。 从压控振荡器输出的N次频率信号提供锁相环,以抑制用于抑制从信号选择器输出的振荡频率信号对中包含的N次谐波的谐波。 根据用于抑制谐波的锁相环,可以使用从压控振荡器输出的N次频率信号来抑制振荡频率附近的N次谐波信号,并且可以在不形成附加反馈的情况下获得抑制 循环。
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公开(公告)号:KR101415733B1
公开(公告)日:2014-07-07
申请号:KR1020130071645
申请日:2013-06-21
Applicant: 숭실대학교산학협력단
IPC: H03B5/12
CPC classification number: H03B5/1228 , H03B5/1212 , H03B5/124 , H03B2200/0062
Abstract: The present invention relates to a voltage controlled oscillator. According to the present invention, the voltage controlled oscillator comprises: a first transistor having a first end connected to a first power source, a body connected to a gate, and outputting a first output signal through a second end; a second transistor cross-coupling with the first transistor by having a first end connected to the first power source, a body connected to the second end of the first transistor and connected to the gate, and a second end connected to the body of the first transistor, and outputting a second output signal with the opposite phase to that of the first transistor through a second end; and a resonant filter having a first end connected to the second end of the first transistor and a second end connected to the second end of the second transistor. According to the present invention, the voltage controlled oscillator can adjust a threshold voltage by applying a signal with the same phase as the gate through a body of a transistor and a body bias. Thus, the voltage controlled oscillator may have a relatively high gain from the same power consumption compared with an existing technology and reduce oscillation time by forming an additional feedback loop.
Abstract translation: 本发明涉及压控振荡器。 根据本发明,压控振荡器包括:第一晶体管,其具有连接到第一电源的第一端,连接到栅极的主体,并且通过第二端输出第一输出信号; 通过具有连接到第一电源的第一端与第一晶体管交叉耦合的第二晶体管,连接到第一晶体管的第二端并连接到栅极的主体,以及连接到第一晶体管的主体的第二端 并通过第二端输出具有与第一晶体管相反相位的第二输出信号; 以及谐振滤波器,其具有连接到第一晶体管的第二端的第一端和连接到第二晶体管的第二端的第二端。 根据本发明,压控振荡器可以通过施加与栅极相同的相位的信号通过晶体管的主体和体偏置来调节阈值电压。 因此,与现有技术相比,压控振荡器可以具有与相同功率消耗相对较高的增益,并且通过形成额外的反馈回路来减少振荡时间。
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