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1. 发明申请

US20080012608A1 Inductive load driving circuit 审中-公开
标题翻译：感性负载驱动电路
公开(公告)号：US20080012608A1
公开(公告)日：2008-01-17
申请号：US11327620
申请日：2006-01-06
申请人： Atsushi Sudoh , Yoshinori Okada , Seiji Murakami , Atsuhiro Miwata
发明人： Atsushi Sudoh , Yoshinori Okada , Seiji Murakami , Atsuhiro Miwata
IPC分类号： H03K3/00
CPC分类号： H03M9/00 , G09G3/3283 , G09G2320/0233 , H03K19/018585
摘要： Objective To provide a current driving circuit that can improve the driving current setting accuracy. Means to solve Transistors 1-1-1-n of bias voltage generating circuit 1 and transistors 3-1-3-8 of output circuits 2-1-2-160 are distributed and formed in a common region on a semiconductor substrate. In this way, the threshold voltage of the synthetic transistor constituted by transistors 1-1-1-n connected in parallel with each other is close to the average threshold voltage of transistors 3-1-3-8 of output circuits 2-1-2-160. As a result, the error in threshold voltage between this synthetic transistor and transistors 3-1-3-8 of output circuits 2-1-2-160 is about half the variation in threshold voltage of transistors 3-1-3-8 of output circuits 2-1-2-160. In other words, the error in threshold voltage of the transistors that constitute the current mirror circuit can be reduced.
摘要翻译：目的提供可提高驱动电流设定精度的电流驱动电路。解决偏置电压产生电路1的晶体管1-1-n和输出电路2-1-1-16的晶体管1-3-1的手段被分布并形成在半导体衬底上的公共区域中。以这种方式，由彼此并联连接的晶体管1-1-1而构成的合成晶体管的阈值电压接近输出电路2-1-1-3的晶体管3-1-1-3的平均阈值电压，结果，这个合成晶体管与输出电路2-1-2-160的晶体管3-1-3之间的阈值电压误差大约是晶体管3-1-1-2-160的阈值电压变化的一半，输出电路2 - 1 - 2 - 160的3 - 8。换句话说，可以减少构成电流镜电路的晶体管的阈值电压误差。

2. 发明授权

US07193403B2 Current driver 有权
标题翻译：当前驱动
公开(公告)号：US07193403B2
公开(公告)日：2007-03-20
申请号：US11353332
申请日：2006-02-14
申请人： Atsushi Sudoh , Yoshinori Okada , Seiji Murakami , Atsuhiro Miwata
发明人： Atsushi Sudoh , Yoshinori Okada , Seiji Murakami , Atsuhiro Miwata
IPC分类号： G05F3/08 , G05F3/16
CPC分类号： H03M1/0845 , G09G3/2092 , G09G3/3283 , H03M1/745
摘要： A current driver that can control variation in the consumed current in conjunction with variation in the setting value of the driving current. The mirror current of transistors Q2-0 to Q2-7 at each of output circuits 10-1 to 10-160 keeps flowing through output terminal To1 or node N8 irrespective of the setting value of the pixel data. Also, the mirror current of transistor Q4D keeps flowing in the series circuit of transistors Q4D and Q5D irrespective of the setting value of the pixel data. Consequently, even when the setting value of the driving current varies in various ways, the current consumed in each output circuit can still be kept constant. As a result, it is possible to prevent variation in the voltage of the power supply line in conjunction with variation of the consumed current, and it is possible to reduce fluctuation in the driving current between output channels.
摘要翻译：可以控制消耗电流的变化与驱动电流的设定值的变化一起的电流驱动器。输出电路10-1至10-160中的每一个晶体管Q 2 - 0至Q 2 - 7的镜像电流都保持流过输出端子1或节点N 8，而与像素数据的设置值无关。此外，与像素数据的设定值无关，晶体管Q4D的反射镜电流保持流入晶体管Q 4 D和Q 5 D的串联电路。因此，即使当驱动电流的设定值以各种方式变化时，每个输出电路中消耗的电流仍然可以保持恒定。结果，可以防止电源线的电压随消耗电流的变化而发生变化，并且可以减小输出通道之间的驱动电流的波动。

3. 发明申请

US20060181259A1 Current driver 有权
标题翻译：当前驱动
公开(公告)号：US20060181259A1
公开(公告)日：2006-08-17
申请号：US11353332
申请日：2006-02-14
申请人： Atsushi Sudoh , Yoshinori Okada , Seiji Murakami , Atsuhiro Miwata
发明人： Atsushi Sudoh , Yoshinori Okada , Seiji Murakami , Atsuhiro Miwata
IPC分类号： G05F3/16 , G05F3/20
CPC分类号： H03M1/0845 , G09G3/2092 , G09G3/3283 , H03M1/745
摘要： A current driver that can control variation in the consumed current in conjunction with variation in the setting value of the driving current. The mirror current of transistors Q2-0 to Q2-7 at each of output circuits 10-1 to 10-160 keeps flowing through output terminal To1 or node N8 irrespective of the setting value of the pixel data. Also, the mirror current of transistor Q4D keeps flowing in the series circuit of transistors Q4D and Q5D irrespective of the setting value of the pixel data. Consequently, even when the setting value of the driving current varies in various ways, the current consumed in each output circuit can still be kept constant. As a result, it is possible to prevent variation in the voltage of the power supply line in conjunction with variation of the consumed current, and it is possible to reduce fluctuation in the driving current between output channels.
摘要翻译：可以控制消耗电流的变化与驱动电流的设定值的变化一起的电流驱动器。输出电路10-1至10-160中的每一个晶体管Q 2 - 0至Q 2 - 7的镜像电流都保持流过输出端子1或节点N 8，而与像素数据的设置值无关。此外，与像素数据的设定值无关，晶体管Q4D的反射镜电流保持流入晶体管Q 4 D和Q 5 D的串联电路。因此，即使当驱动电流的设定值以各种方式变化时，每个输出电路中消耗的电流仍然可以保持恒定。结果，可以防止电源线的电压随消耗电流的变化而发生变化，并且可以减小输出通道之间的驱动电流的波动。

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