公开(公告)号：US20130154699A1

公开(公告)日：2013-06-20

申请号：US13724803

申请日：2012-12-21

Applicant: Panasonic Corporation

Inventor： Yusuke TOKUNAGA ,  Shiro SAKIYAMA

IPC: H03L7/00

CPC classification number: H03L7/00 ,  H03K4/501

Abstract: An oscillator circuit complementarily increases or reduces, in response to a transition of a signal level of a reference clock, a signal level of a first oscillation signal and a signal level of a second oscillation signal. An oscillation control circuit compares the first and second oscillation signals to a comparison voltage, and transitions the signal level of the reference clock in accordance with a result of the comparison. A reference control circuit increases or reduces the comparison voltage so that a difference between a signal level of an intermediate signal which is proportional to respective swings of the first and second oscillation signals and a reference voltage is reduced. A reference voltage control circuit increases or reduces the reference voltage according to a frequency difference between a basis clock and the reference clock.

Abstract translation: 响应于参考时钟的信号电平，第一振荡信号的信号电平和第二振荡信号的信号电平的转变，振荡器电路互补地增加或减小。 振荡控制电路将第一和第二振荡信号与比较电压进行比较，并根据比较结果转换参考时钟的信号电平。 参考控制电路增加或减小比较电压，使得与第一和第二振荡信号的相应摆动成比例的中间信号的信号电平与参考电压之间的差减小。 参考电压控制电路根据基准时钟和参考时钟之间的频率差增加或减小参考电压。

公开(公告)号：US20160037108A1

公开(公告)日：2016-02-04

申请号：US14749951

申请日：2015-06-25

Applicant: Panasonic Corporation

Inventor： Yusuke TOKUNAGA

IPC: H04N5/374 ,  G01K1/00 ,  H03M1/12 ,  H03H19/00 ,  H03K3/356

CPC classification number: H04N5/374 ,  G01K1/00 ,  G06G7/186 ,  H03H19/004 ,  H03K3/356104 ,  H03K19/018521 ,  H03M1/1245 ,  H04N5/378

Abstract: A switched capacitor circuit includes: a capacitor including a first terminal to which the input voltage is applied and a second terminal; an inverting amplifier including a second input terminal connected to the second terminal; a capacitor including a third terminal, a fourth terminal, and a fifth terminal which is connected to an output terminal; a capacitor including a seventh terminal, a sixth terminal connected to the second output terminal, and an eighth terminal connected to the third terminal; a capacitor connected in series between the second terminal and the output terminal; and an offset compensation unit which outputs an offset voltage having a value of a short-circuit voltage of the inverting amplifier to the fourth terminal and the seventh terminal.

Abstract translation: 开关电容电路包括：电容器，包括施加有输入电压的第一端子和第二端子; 反相放大器，包括连接到第二端子的第二输入端子; 电容器，包括连接到输出端子的第三端子，第四端子和第五端子; 电容器，包括第七端子，连接到第二输出端子的第六端子和连接到第三端子的第八端子; 在第二端子和输出端子之间串联连接的电容器; 以及偏移补偿单元，其向第四端子和第七端子输出具有反相放大器的短路电压值的偏移电压。