公开(公告)号：JP2008141356A

公开(公告)日：2008-06-19

申请号：JP2006324016

申请日：2006-11-30

申请人： Sanyo Electric Co Ltd ,  Sanyo Semiconductor Co Ltd ,  三洋半導体株式会社 ,  三洋電機株式会社

发明人： KURIHARA SHINJI

IPC分类号： H03F3/45

CPC分类号： H03F3/45192 ,  H03F3/45735 ,  H03F2203/45122 ,  H03F2203/45302

摘要： PROBLEM TO BE SOLVED: To allow stable differential amplification independently of an input voltage level.
SOLUTION: A differential amplifier circuit includes: a first transistor which has an electrode on one side, which generates a threshold voltage between the electrode itself and a control voltage, connected to a first constant current source and has an electrode on the other side connected to a second constant current source and has a first input voltage applied to the control electrode thereof; a second transistor which has an electrode on one side, which generates a threshold voltage between the electrode itself and a control voltage, connected to the first constant current source and has an electrode on the other side connected to a third constant current source and has a second input voltage applied to the control electrode thereof; and a third transistor which has an electrode on one side, which generates a threshold voltage between the electrode itself and a control voltage, connected to the electrode on the other side of the first or second transistor. A voltage corresponding to voltages of electrodes on one sides of the first and second transistors is applied to the control electrode of the third transistor.
COPYRIGHT: (C)2008,JPO&INPIT

摘要翻译： 要解决的问题：允许独立于输入电压电平的稳定的差分放大。 解决方案：差分放大器电路包括：第一晶体管，其在一侧具有电极，其在电极本身和控制电压之间产生阈值电压，连接到第一恒流源并且在另一侧上具有电极 一侧连接到第二恒流源，并具有施加到其控制电极的第一输入电压; 第二晶体管，其在一侧具有电极，其在电极本身和控制电压之间产生阈值电压，连接到第一恒流源并且具有连接到第三恒流源的另一侧的电极，并且具有 施加到其控制电极的第二输入电压; 以及第三晶体管，其在一侧具有电极，其在电极本身和控制电压之间产生阈值电压，连接到第一或第二晶体管的另一侧上的电极。 对应于第一和第二晶体管一侧的电极电压的电压被施加到第三晶体管的控制电极。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2010147992A

公开(公告)日：2010-07-01

申请号：JP2008325466

申请日：2008-12-22

申请人： Toshiba Corp ,  株式会社東芝

发明人： NOZAWA MAI ,  FURUTA MASANORI

IPC分类号： H03F1/22 ,  H03F3/45 ,  H03M1/44

CPC分类号： H03F1/223 ,  H03F3/45183 ,  H03F3/45192 ,  H03F3/45475 ,  H03F3/45735 ,  H03F2200/249 ,  H03F2200/405 ,  H03F2200/414 ,  H03F2200/78 ,  H03F2203/45292 ,  H03F2203/45302 ,  H03F2203/45356 ,  H03F2203/45396 ,  H03F2203/45424 ,  H03F2203/45446 ,  H03F2203/45536 ,  H03F2203/45544 ,  H03F2203/45551 ,  H03F2203/45616 ,  H03F2203/45726 ,  H03F2203/45728 ,  H03M1/002 ,  H03M1/0682 ,  H03M1/164

摘要： PROBLEM TO BE SOLVED: To reduce a starting time and suppress an increase of electric power consumption.
SOLUTION: The amplifier circuit includes a current source 101 which is connected between a power-supply voltage Vdd and an output node Vy and goes on when a switching control signal has a first value or goes off when it has a second value, a grounded voltage control current source 104 for which an amount of current is controlled by an input voltage Vin, a cascode transistor 102 connected between the voltage control current source and the output node, a boost amplifier 103 connected between a gate electrode and a source electrode of the cascode transistor, and a switch SW13 which is connected between an output node of the boost amplifier and a bias voltage Vb and goes on for a predetermined time period along with a change of the value of the switching control signal from the second value to the first value to force the boost amplifier to start up.
COPYRIGHT: (C)2010,JPO&INPIT

摘要翻译： 要解决的问题：为了减少启动时间并抑制电力消耗的增加。 解决方案：放大器电路包括连接在电源电压Vdd和输出节点Vy之间的电流源101，当切换控制信号具有第一值或当其具有第二值时，其断开， 接地电压控制电流源104，其电流量由输入电压Vin，连接在电压控制电流源和输出节点之间的共源共栅晶体管102，连接在栅电极和源极之间的升压放大器103 并且连接在升压放大器的输出节点和偏置电压Vb之间的开关SW13，并且随着开关控制信号的值从第二值的变化而变化到预定时间段 第一个值强制升压放大器启动。 版权所有（C）2010，JPO＆INPIT