公开(公告)号：US07580052B2

公开(公告)日：2009-08-25

申请号：US12028914

申请日：2008-02-11

申请人： Tomomitsu Oohara ,  Yukihiro Terada

发明人： Tomomitsu Oohara ,  Yukihiro Terada

IPC分类号： B41J2/355

CPC分类号： B41J2/355

摘要： A thermal head drive circuit drives M number of thermal heads for printing one line and includes a delay unit that applies different time delays to M bits of print data to be supplied to the corresponding M thermal heads. The higher order the odd number thermal heads of the M thermal heads are, the greater are the time delays applied to the corresponding bits of the print data, while the higher order the even number thermal heads of the M thermal heads are, the less are the time delays applied to the corresponding bits of the print data.

摘要翻译： 热头驱动电路驱动M个热敏头用于打印一行，并且包括延迟单元，其将不同的时间延迟施加到要提供给相应的M个热敏头的打印数据的M位。 M热敏头的奇数热敏头的数量越高，施加到打印数据的相应位的时间延迟越大，M个热敏头的偶数个热敏头越高， 应用于打印数据的相应位的时间延迟。

公开(公告)号：US20080180511A1

公开(公告)日：2008-07-31

申请号：US11968261

申请日：2008-01-02

申请人： Tomomitsu Oohara ,  Yukihiro Terada

发明人： Tomomitsu Oohara ,  Yukihiro Terada

IPC分类号： B41J2/35

CPC分类号： B41J2/35

摘要： A disclosed thermal head driving circuit includes an inverter type drive circuit including a p-channel MOS transistor and a first n-channel MOS transistor, and configured to have a driving signal of a rectangular wave provided at gates of the p-channel MOS transistor and the first n-channel MOS transistor to invert the driving signal; a power MOS transistor configured to have provided, at its gate, the inverted drive signal output from the inverter type drive circuit to drive a thermal head connected to its drain; a first resistance connected between a drain of the p-channel MOS transistor and a drain of the first n-channel MOS transistor; and a second resistance connected between a junction point between the first resistance and the drain of the first n-channel MOS transistor, and the gate of the power MOS transistor.

摘要翻译： 公开的热敏头驱动电路包括：反相器型驱动电路，包括p沟道MOS晶体管和第一n沟道MOS晶体管，并且被配置为具有设置在p沟道MOS晶体管的栅极处的矩形波的驱动信号;以及 第一n沟道MOS晶体管反相驱动信号; 功率MOS晶体管，被配置为在其栅极处提供从逆变器型驱动电路输出的反相驱动信号，以驱动连接到其漏极的热敏头; 连接在p沟道MOS晶体管的漏极和第一n沟道MOS晶体管的漏极之间的第一电阻; 以及连接在第一n沟道MOS晶体管的第一电阻和漏极之间的接合点与功率MOS晶体管的栅极之间的第二电阻。

公开(公告)号：US6104150A

公开(公告)日：2000-08-15

申请号：US46825

申请日：1998-03-24

申请人： Tomomitsu Oohara ,  Yukihiro Terada

发明人： Tomomitsu Oohara ,  Yukihiro Terada

IPC分类号： H02P6/00 ,  H02P6/08 ,  H02P7/06 ,  H02P8/00

CPC分类号： H02P6/08 ,  H02P6/28

摘要： A motor driving circuit controls driving currents to be supplied to stator coils of a plurality of phases so as to supply the driving currents to the stator coils in sequence so as to generate a rotating magnetic field. The interaction between the rotating magnetic field generated by the stator coils and a magnetic field generated by a magnet of a rotor causes the rotor to rotate with respect to the stator coils. The motor driving circuit includes a driving circuit for supplying the driving currents to the stator coils, respectively; and a preventing circuit for preventing the driving means from supplying the driving currents to the stator coils in sequence.

摘要翻译： 电动机驱动电路控制供给多相的定子线圈的驱动电流，以便依次向定子线圈提供驱动电流，以产生旋转磁场。 由定子线圈产生的旋转磁场与由转子的磁体产生的磁场之间的相互作用使转子相对于定子线圈旋转。 马达驱动电路包括分别向定子线圈提供驱动电流的驱动电路; 以及用于防止驱动装置依次向定子线圈提供驱动电流的防止电路。

公开(公告)号：US07215093B2

公开(公告)日：2007-05-08

申请号：US10789223

申请日：2004-02-27

申请人： Kaoru Usui ,  Tomomitsu Oohara

发明人： Kaoru Usui ,  Tomomitsu Oohara

IPC分类号： H02K7/00 ,  H02P3/00

CPC分类号： H02P3/12

摘要： A motor drive circuit includes a first transistor. The collector of a second transistor is connected to the emitter of the first transistor in series. A motor is connected to a connection point between the first and second transistors. A first brake control circuit turns off the first transistor and turns on the second transistor in accordance with a brake operation instruction signal. A second brake control circuit forces the first transistor to be turned OFF in accordance with the brake operation instruction signal independently from the first brake control circuit.

摘要翻译： 电动机驱动电路包括第一晶体管。 第二晶体管的集电极串联连接到第一晶体管的发射极。 电动机连接到第一和第二晶体管之间的连接点。 第一制动控制电路关闭第一晶体管，并根据制动操作指令信号接通第二晶体管。 第二制动控制电路根据来自第一制动控制电路的制动操作指示信号迫使第一晶体管截止。

公开(公告)号：US07049770B2

公开(公告)日：2006-05-23

申请号：US10757856

申请日：2004-01-14

申请人： Yasuhiko Inagaki ,  Tomomitsu Oohara

发明人： Yasuhiko Inagaki ,  Tomomitsu Oohara

IPC分类号： H02P1/00

CPC分类号： G11B19/28

摘要： A current control circuit includes a control current generation circuit that generates a control current in accordance with an external current control signal. A plurality of drive current generation circuits generate drive currents in accordance with the control current that is generated by and supplied from the control current generation circuit.

摘要翻译： 电流控制电路包括根据外部电流控制信号产生控制电流的控制电流产生电路。 多个驱动电流产生电路根据由控制电流产生电路产生并从控制电流产生电路提供的控制电流产生驱动电流。