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1. 发明专利

JP2014099762A Amplification circuit 有权
标题翻译：放大电路
公开(公告)号：JP2014099762A
公开(公告)日：2014-05-29
申请号：JP2012250540
申请日：2012-11-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TSUNODA YUKITO
IPC分类号： H03F1/34 , H01S5/042 , H03F3/19 , H03F3/45 , H03F3/68
CPC分类号： H03F1/48 , H03F3/45085 , H03F2203/45521 , H03F2203/45522 , H03F2203/45722
摘要： PROBLEM TO BE SOLVED: To implement a wideband and high speed signal amplification.SOLUTION: An amplification circuit includes a grounded emitter amplification circuit 101 for amplifying an input signal, and a grounded emitter feedback circuit 102. The amplification circuit 101 is a differential amplification circuit 101 having a pair of transistors Tr1, Tr2 and having a pair of output lines outp, outn of normal and reverse phases, and the feedback circuit 102 has a pair of transistors Tr3, Tr4 and a pair of resistors 122, 123. A collector of one transistor Tr3 connected to the normal phase outp of the pair of output lines is connected with a base of the transistor Tr3, and a collector of the other transistor Tr4 connected to the reverse phase outn is connected with a base of the transistor Tr4.
摘要翻译：要解决的问题：实现宽带和高速信号放大。解决方案：放大电路包括用于放大输入信号的接地发射极放大电路101和接地发射极反馈电路102.放大电路101是差分放大电路 101具有一对晶体管Tr1，Tr2，并且在正常和反相之外具有一对输出线，并且反馈电路102具有一对晶体管Tr3，Tr4和一对电阻器122,123。与晶体管Tr3的基极连接的连接到一对输出线的正常相位的一个晶体管Tr3连接到反向相位outn的另一个晶体管Tr4的集电极与晶体管Tr4的基极连接。

2. 发明专利

JP5156434B2 Imaging apparatus and an imaging system 有权
公开(公告)号：JP5156434B2
公开(公告)日：2013-03-06
申请号：JP2008051122
申请日：2008-02-29
申请人：キヤノン株式会社
发明人：彰沖田 , 孝正桜木 , 覚鈴木
IPC分类号： H04N5/357 , H04N5/335 , H04N5/341 , H04N5/374 , H04N5/376 , H04N5/378
CPC分类号： H03F3/082 , H03F3/45183 , H03F2203/45356 , H03F2203/45392 , H03F2203/45702 , H03F2203/45722

3. 发明专利

JP4998211B2 Low-noise amplifier and a differential amplifier 有权
公开(公告)号：JP4998211B2
公开(公告)日：2012-08-15
申请号：JP2007284566
申请日：2007-10-31
申请人：アイコム株式会社
发明人：耕一郎山口
IPC分类号： H03F1/26 , H03F1/22 , H03F1/34 , H03F3/45
CPC分类号： H03F1/26 , H03F1/14 , H03F1/22 , H03F1/347 , H03F3/19 , H03F3/45089 , H03F3/50 , H03F2200/117 , H03F2200/153 , H03F2200/294 , H03F2200/36 , H03F2200/372 , H03F2200/451 , H03F2203/45516 , H03F2203/45528 , H03F2203/45621 , H03F2203/45722 , H03F2203/45731 , H03F2203/5009 , H03F2203/5021

4. 发明专利

JP4386498B2 Differential amplifier circuit 有权
公开(公告)号：JP4386498B2
公开(公告)日：2009-12-16
申请号：JP17675399
申请日：1999-06-23
申请人：株式会社ルネサステクノロジ
发明人：巧治篠宮
IPC分类号： G11B5/02 , H03F3/45
CPC分类号： H03F3/45475 , H03F3/45089 , H03F3/45991 , H03F2203/45544 , H03F2203/45594 , H03F2203/45701 , H03F2203/45722

5. 发明专利

JP2007028372A Light reception amplifier circuit and optical pickup device using the same 审中-公开
标题翻译：光接收放大器电路和使用其的光学拾取器件
公开(公告)号：JP2007028372A
公开(公告)日：2007-02-01
申请号：JP2005209751
申请日：2005-07-20
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： CHATO TETSUO , YAMAGUCHI HIROSHI
IPC分类号： H03G11/00 , G11B7/13 , H03F3/08
CPC分类号： H03F3/08 , H03F3/087 , H03F3/45085 , H03F2203/45618 , H03F2203/45722 , H03F2203/45728
摘要： PROBLEM TO BE SOLVED: To provide a light reception amplifier circuit which can prevent oscillation in clip operation and can freely set a clip voltage, in the light reception amplifier circuit comprising a clip circuit. SOLUTION: The light reception amplifier circuit comprises a photo-diode 1, an operational amplifier 20, a conversion resistor 11 provided between an output terminal of the operational amplifier 20 and an inverted input terminal thereof, and a clip circuit for clipping an output voltage of the operational amplifier 20 to a predetermined value. The clip circuit comprises a PNP transistor 12 which detects a change in the output voltage of the operational amplifier, and a voltage source 14 connected to a base thereof and if the PNP transistor 12 is turned on as increasing the emitter potential of an NPN transistor 9 connected to the output terminal of the operational amplifier 20, a voltage of the voltage source 14 is applied to the output terminal of the operational amplifier 20 via the PNP transistor 12 and the NPN transistor 9. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种光接收放大器电路，该光接收放大器电路能够防止夹持操作中的振荡并且可以自由地设置夹持电压，在包括夹式电路的光接收放大器电路中。解决方案：光接收放大器电路包括光电二极管1，运算放大器20，设置在运算放大器20的输出端和反相输入端之间的转换电阻器11和用于限幅运算放大器运算放大器20的输出电压达到规定值。钳位电路包括PNP晶体管12，其检测运算放大器的输出电压的变化，以及连接到其基极的电压源14，并且如果PNP晶体管12导通，则NPN晶体管9的发射极电位增加连接到运算放大器20的输出端，电压源14的电压通过PNP晶体管12和NPN晶体管9施加到运算放大器20的输出端。（C）2007， JPO＆INPIT

6. 发明专利

JP2004201319A Differential amplifier slew rate boosting structure 审中-公开
标题翻译：差分放大器SLEW速率升压结构
公开(公告)号：JP2004201319A
公开(公告)日：2004-07-15
申请号：JP2003418039
申请日：2003-12-16
申请人： Texas Instr Inc , テキサスインスツルメンツインコーポレイテツド
发明人： CORSI MARCO , HELLUMS JAMES R
IPC分类号： H03F3/45
CPC分类号： H03F3/45094 , H03F2200/153 , H03F2203/45028 , H03F2203/45546 , H03F2203/45594 , H03F2203/45601 , H03F2203/45631 , H03F2203/45632 , H03F2203/45722
摘要： PROBLEM TO BE SOLVED: To provide a full differential amplifier slew rate boosting structure for an amplifier having closed loop gain that is extremely close to an unit or is smaller than the unit.
SOLUTION: The full differential amplifier slew rate boosting structure used for the amplifier having the closed loop gain being extremely close to the unit or being smaller than the unit connects a first plate of compensating capacitors 50, 52 to internal high-impedance gain nodes 40, 42 as before and drives the second plate of the compensating capacitors 50, 52 by input signals IN+, IN- in a way being different from the conventional one. Voltage that appears by responding to a change in the input signal and crossing the compensating capacitors 50, 52 is clearly smaller than that achieved by using the conventional compensation configuration, where other plates of the compensating capacitor are connected to the earth. Current is hardly required to charge the compensating capacitors 50, 52, thus preventing a slew rate from being restricted by the tail current of an input stage no longer.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：为具有非常接近单元或小于该单元的闭环增益的放大器提供全差分放大器转换速率升压结构。解决方案：用于具有闭环增益的放大器的全差分放大器转换速率升压结构非常接近单元或小于该单元将补偿电容器50,52的第一板连接到内部高阻抗增益节点40,42，并且以与现有技术不同的方式通过输入信号IN +，IN-来驱动补偿电容器50,52的第二板。通过响应于输入信号的变化并与补偿电容器50,52交叉而出现的电压明显小于通过使用常规补偿配置所实现的电压，其中补偿电容器的其它板连接到地球。对补偿电容器50,52进行充电几乎不需要电流，从而防止压摆率被输入级的尾流不再受到限制。版权所有（C）2004，JPO＆NCIPI

7. 发明专利

JP2004512766A Active continuous-time filter with a wide dynamic range by the time of the interference signal presence 审中-公开
公开(公告)号：JP2004512766A
公开(公告)日：2004-04-22
申请号：JP2002538609
申请日：2001-10-29
申请人：ザトラスティースオブコロンビアユニバーシティインザシティオブニューヨーク
发明人：ツィヴァイズ，ヤニス , 吉澤　淳
IPC分类号： H03H11/04 , G06F7/68 , H03D7/14 , H03F3/45 , H03H11/12 , H03H11/20 , H03H11/24 , H03K5/24 , H04B1/10
CPC分类号： G06F7/68 , H03D7/1408 , H03D7/1433 , H03D7/1441 , H03D7/145 , H03D7/1458 , H03D2200/0025 , H03D2200/0088 , H03F3/45179 , H03F3/45511 , H03F2203/45318 , H03F2203/45352 , H03F2203/45366 , H03F2203/45402 , H03F2203/45418 , H03F2203/45424 , H03F2203/45648 , H03F2203/45652 , H03F2203/45702 , H03F2203/45722 , H03H11/12 , H03H11/1213 , H03H11/1252 , H03H11/1291 , H03H11/20 , H03H11/245 , H03K5/2481 , H04B1/109
摘要：妨害信号除去特性が改良された能動フィルタ（１００）が開示されている。フィルタ（１００）の入力段（７２）において、固定値抵抗器（３、４）のような線形抵抗器を使用して、いかなる妨害信号も抑圧する。抵抗器（３、４）に関連するいかなる利得変化も相殺されるために、入力抵抗器（３、４）の製作に用いられた同じ技術を利用して製作された抵抗器（２４）を使用して、出力段（２３）に利得補償段（５７）を追加する。１つの模範的な実施形態では、固定値抵抗器（３、４）は、ポリシリコンを使用して製作される。

8. 发明专利

JP4475540B2 Optical semiconductor devices, and optical pickup device 有权
公开(公告)号：JP4475540B2
公开(公告)日：2010-06-09
申请号：JP2006234456
申请日：2006-08-30
申请人：パナソニック株式会社
发明人：伸一宮本 , 秀雄福田
IPC分类号： H01L31/10 , G01J1/44 , G11B7/13
CPC分类号： H01L27/144 , G11B7/13 , H03F3/08 , H03F3/087 , H03F3/45085 , H03F3/45475 , H03F2203/45138 , H03F2203/45166 , H03F2203/45224 , H03F2203/45266 , H03F2203/45722

9. 发明专利

JP2010109512A Driver circuit and driver ic 审中-公开
标题翻译：驱动电路和驱动器IC
公开(公告)号：JP2010109512A
公开(公告)日：2010-05-13
申请号：JP2008277629
申请日：2008-10-29
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKAAI JUN
IPC分类号： H03K17/30 , G02F1/015 , H03F3/45 , H03F3/68 , H03K17/60
CPC分类号： H03F3/45085 , H03F2200/408 , H03F2203/45612 , H03F2203/45702 , H03F2203/45722
摘要： PROBLEM TO BE SOLVED: To obtain a driver circuit which can maintain a good output waveform even when an electric waveform whose crossover point shifts from 50%. SOLUTION: Three stages of differential amplification stages of a first amplification stage A1, a second amplification stage A2, and a third amplification stage A3 are connected in series. Crossover point adjustment circuits CP1, CP2 are respectively connected to the first amplification stage A1 and the second amplification stage A2. The crossover point adjustment circuit CP1 controls at least one of DC levels of a positive phase and an inverse phase of the first amplification stage A1, and adjusts the crossover point of an output signal of the first amplification stage A1. Moreover, the crossover point adjustment circuit CP2 controls at least one of DC levels of a positive phase and an inverse phase of the second amplification stage A2, and adjusts the crossover point of an output signal of the second amplification stage A2. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使当交叉点从50％偏移的电波形时，也可以获得能够保持良好输出波形的驱动电路。解决方案：串联连接第一放大级A1，第二放大级A2和第三放大级A3的三级差分放大级。交叉点调整电路CP1，CP2分别连接到第一放大级A1和第二放大级A2。交叉点调整电路CP1控制第一放大级A1的正相和反相的DC电平中的至少一方，并调整第一放大级A1的输出信号的交越点。此外，交叉点调整电路CP2控制第二放大级A2的正相和反相的DC电平中的至少一个，并且调整第二放大级A2的输出信号的交叉点。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2010041653A Differential amplifier 有权
标题翻译：差分放大器
公开(公告)号：JP2010041653A
公开(公告)日：2010-02-18
申请号：JP2008205523
申请日：2008-08-08
申请人： Fujitsu Ltd , 富士通株式会社
发明人： KUDO MASAHIRO
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/193 , H03F2200/366 , H03F2200/411 , H03F2203/45352 , H03F2203/45364 , H03F2203/45512 , H03F2203/45668 , H03F2203/45702 , H03F2203/45722
摘要： PROBLEM TO BE SOLVED: To provide a differential amplifier which suppresses an in-phase signal with respect to a high-frequency input signal. SOLUTION: The differential amplifier includes: first and second transistors the source terminals of which are connected to each other at a first common node; a first common current source connected to the first common node; and an in-phase signal input terminal for inputting, to the first common node, an in-phase signal with respect to first and second input signals inputted to gate terminals of the first and second transistors. COPYRIGHT: (C)2010,JPO&INPIT

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