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1. 发明专利

JP2006211629A Pdic having multiple gain states 审中-公开
标题翻译： PDIC有多个增益状态
公开(公告)号：JP2006211629A
公开(公告)日：2006-08-10
申请号：JP2005103427
申请日：2005-03-31
申请人： Samsung Electro Mech Co Ltd , 三星電機株式会社
发明人： KIM SANG SUK , KWON KYOUNG SOO , GONG JUNG CHUL , HWANG HYEON-SEOK
IPC分类号： H03F3/08 , H03G3/12 , H03K17/00 , H03K17/693
CPC分类号： H03F3/211 , G11B7/13 , H03F3/087 , H03F3/45179
摘要： PROBLEM TO BE SOLVED: To provide a multi-gain PDIC (PhotoDiode Integrated Circuit) capable of realizing a number of gain states using one output stage circuit.
SOLUTION: The multi-gain PDIC includes a current-voltage conversion unit which converts a current signal generated in accordance with an inputted optical signal into a voltage signal and outputs the voltage signal, an input amplification stage connected to the current-voltage conversion unit by a first input terminal to receive and amplify the voltage signal, a reference resistance unit connected to a second input terminal of the input amplification stage, an output amplification stage connected to an output terminal of the input amplification stage, a feedback resistance unit including a plurality of resistance elements connected in parallel between the second input terminal of the input amplification stage circuit and the output terminal of the output amplification stage circuit and including resistance values different from each other, and a switching unit which selectively connects any one of the plurality of resistance elements of the feedback resistance unit.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够使用一个输出级电路实现多个增益状态的多增益PDIC（光电二极管集成电路）。解决方案：多增益PDIC包括电流 - 电压转换单元，其将根据输入的光信号生成的电流信号转换为电压信号并输出电压信号，连接到电流电压的输入放大级转换单元，通过第一输入端子接收和放大电压信号;连接到输入放大级的第二输入端的参考电阻单元，连接到输入放大级的输出端的输出放大级，反馈电阻单元包括并联连接在输入放大级电路的第二输入端子和输出放大级电路的输出端子之间的多个电阻元件，并且包括彼此不同的电阻值;以及切换单元，其选择性地连接反馈电阻单元的多个电阻元件。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2006238403A Circuit and method for compensating for offset voltage 审中-公开
标题翻译：用于补偿偏置电压的电路和方法
公开(公告)号：JP2006238403A
公开(公告)日：2006-09-07
申请号：JP2005145713
申请日：2005-05-18
申请人： Samsung Electro Mech Co Ltd , 三星電機株式会社
发明人： GONG JUNG CHUL , KWON KYOUNG SOO , HWANG HYEON-SEOK , KIM SANG SUK
IPC分类号： H03F3/34 , H03F1/30 , H03F3/08
CPC分类号： H03F3/45748 , H03F3/087 , H03F3/45291 , H03F3/45896 , H03F3/45973 , H03F2200/447
摘要： PROBLEM TO BE SOLVED: To provide a circuit and method for compensating for a variation in an offset voltage caused by a temperature variation of a circuit (PDIC) for converting light to be used for high-speed and high-capacitance storage technologies equivalent to a magnetic disk into an electric signal.
SOLUTION: In an offset voltage compensation circuit, characteristics of a BJT (bipolar junction transistor) used for an output circuit of a PDIC are varied with variation in surrounding temperature. A second BJT having the same temperature characteristics as the above BJT is prepared to configure a bypass circuit of a current flowing through a current mirror to an output BJT element, thereby compensating for the variation in the offset voltage caused by the temperature variation.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于补偿由用于转换用于高速和高电容存储技术的光的电路（PDIC）的温度变化引起的偏移电压变化的电路和方法相当于将磁盘变成电信号。解决方案：在偏移电压补偿电路中，用于PDIC的输出电路的BJT（双极结型晶体管）的特性随周围温度的变化而变化。准备具有与上述BJT相同的温度特性的第二BJT，以将流过电流镜的电流的旁路电路配置到输出BJT元件，从而补偿由温度变化引起的偏移电压的变化。版权所有（C）2006，JPO＆NCIPI

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