公开(公告)号：US5918982A

公开(公告)日：1999-07-06

申请号：US927182

申请日：1997-09-11

申请人： Junichi Nagata ,  Junji Hayakawa ,  Hiroyuki Ban

发明人： Junichi Nagata ,  Junji Hayakawa ,  Hiroyuki Ban

IPC分类号： G01K7/01 ,  G01R19/165 ,  G05F3/02 ,  H02H5/04 ,  H02H7/20 ,  G01K7/00

CPC分类号： G01K7/01

摘要： A temperature detecting circuit detects the rise of ambient temperature, using a forward voltage drop across a diode. The temperature detecting circuit comprises a temperature detecting diode whose cathode is grounded, a first constant current supply device connected with the anode of the temperature detecting diode, for supplying a constant current Ia to the temperature-detecting diode, a rectifying diode whose cathode is connected with the anode of the temperature detecting diode, a second constant current supply device connected with the anode of the rectifying diode, for supplying a constant current Ib to the temperature-detecting diode, a comparator, and a transistor. When the voltage at the anode of the temperature-detecting diode is lower than a reference voltage, the comparator produces a high-level signal indicative of overheating. In response to this, the transistor shorts the anode of the rectifying diode to ground potential to supply the constant current Ib from the second constant current supply device directly to ground potential.

摘要翻译： 温度检测电路使用二极管两端的正向压降来检测环境温度的上升。 温度检测电路包括阴极接地的温度检测二极管，与温度检测二极管的阳极连接的第一恒流源装置，用于向温度检测二极管提供恒定电流Ia;其阴极连接的整流二极管 与温度检测二极管的阳极连接的第二恒流源装置与整流二极管的阳极连接，用于向温度检测二极管提供恒定电流Ib，比较器和晶体管。 当温度检测二极管的阳极电压低于参考电压时，比较器产生指示过热的高电平信号。 响应于此，晶体管将整流二极管的阳极短路到地电位，以将恒定电流Ib从第二恒定电流供应装置直接提供给地电位。

公开(公告)号：US5999041A

公开(公告)日：1999-12-07

申请号：US857881

申请日：1997-05-16

申请人： Junichi Nagata ,  Junji Hayakawa ,  Hiroyuki Ban

发明人： Junichi Nagata ,  Junji Hayakawa ,  Hiroyuki Ban

IPC分类号： H03K17/082 ,  H03K17/08

CPC分类号： H03K17/0822

摘要： An output MOS transistor and a current-detecting MOS transistor are connected commonly at their drains and gates. A gate voltage is fed to the gates of these transistors via signal lines. When the voltage of an output terminal is increased in response to excessive load current, a current-mirror circuit consisting of first and second transistors pulls in current from the signal line to reduce the gate voltage. Thus, the output current of output MOS transistor is limited within a predetermined level. Furthermore, a diode, provided in the signal line, produces a voltage drop equivalent to the base-emitter voltage of first transistor. By the function of this diode, the gate-source voltage of output MOS transistor is equalized with the gate-source voltage of current-detecting MOS transistor. As a result, the same operating point can be set for the output transistor and the current-detecting transistor.

摘要翻译： 输出MOS晶体管和电流检测MOS晶体管通常连接在其漏极和栅极。 栅极电压通过信号线馈送到这些晶体管的栅极。 当输出端子的电压响应于过大的负载电流而增加时，由第一和第二晶体管组成的电流镜电路从信号线引出电流以降低栅极电压。 因此，输出MOS晶体管的输出电流被限制在预定的水平。 此外，设置在信号线中的二极管产生等效于第一晶体管的基极 - 发射极电压的电压降。 通过该二极管的功能，输出MOS晶体管的栅极 - 源极电压与电流检测MOS晶体管的栅极 - 源极电压相等。 结果，可以为输出晶体管和电流检测晶体管设置相同的工作点。

公开(公告)号：US6075403A

公开(公告)日：2000-06-13

申请号：US17495

申请日：1998-02-02

申请人： Takeshi Ishikawa ,  Tomohisa Yamamoto ,  Hiroyuki Ban ,  Junichi Nagata ,  Junji Hayakawa

发明人： Takeshi Ishikawa ,  Tomohisa Yamamoto ,  Hiroyuki Ban ,  Junichi Nagata ,  Junji Hayakawa

IPC分类号： H02M3/07 ,  G05F1/10

CPC分类号： H02M3/073

摘要： A charge pump circuit comprises a plurality of capacitors arranged to charge and discharge for generating a charged-up voltage. An oscillation circuit generates a clock signal to be applied to the plurality of capacitors to alternately charge and discharge these charge-up capacitors. A monitoring circuit detects electrical potentials on at least two of the charge-up capacitors and controls the clock signal. An oscillating condition of the oscillation circuit based on the electrical potentials on the at least two of the charge-up capacitors.

摘要翻译： 电荷泵电路包括多个电容器，其布置成充电和放电以产生充电电压。 振荡电路产生施加到多个电容器的时钟信号，以交替地对这些充电电容器进行充电和放电。 监控电路检测至少两个充电电容器的电位并控制时钟信号。 基于至少两个充电电容器上的电位的振荡电路的振荡条件。

公开(公告)号：US5977756A

公开(公告)日：1999-11-02

申请号：US042191

申请日：1998-03-13

申请人： Junichi Nagata ,  Junji Hayakawa ,  Hiroyuki Ban

发明人： Junichi Nagata ,  Junji Hayakawa ,  Hiroyuki Ban

IPC分类号： H03K17/06 ,  H03K17/0814 ,  H03K17/082 ,  G05F1/44

CPC分类号： H03K17/0822 ,  H03K17/063 ,  H03K17/08142

摘要： A first switching element opens or closes a power supply route of an inductive load in accordance with a first driving signal. A clamping element prevents a voltage ot the power supply route from exceeding a first clamp voltage when the power supply route is opened. A second switching element opens or closes the current flow route, provided in parallel with the power supply route, in response to a second driving signal. A rectifying means is responsive to the second switching element to change the clamp voltage to a second clamp voltage when the first switching element is turned off. The second switching element is constituted by a MOSFET. A charging element charges a capacitor of MOSFET.

摘要翻译： 第一开关元件根据第一驱动信号打开或关闭感性负载的电源路径。 当供电路径打开时，夹紧元件防止电源线路上的电压超过第一钳位电压。 第二开关元件响应于第二驱动信号而打开或关闭与电源路径并联提供的电流流动路径。 当第一开关元件关闭时，整流装置响应于第二开关元件将钳位电压改变为第二钳位电压。 第二开关元件由MOSFET构成。 充电元件对MOSFET的电容器充电。

公开(公告)号：US5883483A

公开(公告)日：1999-03-16

申请号：US743878

申请日：1996-11-06

申请人： Junichi Nagata ,  Junji Hayakawa ,  Hiroyuki Ban

发明人： Junichi Nagata ,  Junji Hayakawa ,  Hiroyuki Ban

IPC分类号： H02P8/16 ,  H02P8/00 ,  H02P8/34 ,  H02P8/12

CPC分类号： H02P8/34 ,  H02P8/00

摘要： In an actuation circuit for a stepping motor, one switching element and its associated coil are connected at one connecting point, while the other switching element and its associated coil are connected at another connecting point. A pair of switching circuits and a pair of rectifying circuits are provided between two connecting points. When one of switching elements is changed from an ON condition to an OFF condition, the voltage difference between two connecting points allows the current to flow in a designated direction through the switching circuit and the rectifying circuit combined, thereby releasing the energy stored in the coils.

摘要翻译： 在用于步进电机的驱动电路中，一个开关元件及其相关联的线圈在一个连接点处连接，而另一个开关元件及其相关联的线圈在另一个连接点处连接。 一对开关电路和一对整流电路设置在两个连接点之间。 当开关元件中的一个从接通状态变为关闭状态时，两个连接点之间的电压差允许电流通过开关电路和整流电路在指定方向上流动，从而释放存储在线圈中的能量 。

公开(公告)号：US6011413A

公开(公告)日：2000-01-04

申请号：US92247

申请日：1998-06-05

申请人： Junji Hayakawa ,  Junichi Nagata

发明人： Junji Hayakawa ,  Junichi Nagata

IPC分类号： G01R19/00 ,  H03K17/082

CPC分类号： H03K17/0822 ,  G01R19/0092 ,  H03K2217/0027

摘要： A current-measuring circuit is provided which is designed to measure the current flowing through an electric load and a switching transistor. The current-measuring circuit includes a current-measuring device. The current-measuring device includes a current-measuring transistor and a voltage control circuit. The current-measuring transistor is disposed in parallel to the switching transistor and allows the current to flow therethrough that is proportional to the current flowing through the electric load and the switching transistor and that is used to measure the current flowing through the switching transistor and the electric load. The voltage control circuit controls a potential difference across the current-measuring transistor so as to match a potential difference across the switching transistor, thereby achieving the proportion of the current flowing through the current-measuring transistor to the current flowing through the switching transistor and the electric load.

摘要翻译： 提供电流测量电路，其被设计成测量流过电负载的电流和开关晶体管。 电流测量电路包括电流测量装置。 电流测量装置包括电流测量晶体管和电压控制电路。 电流测量晶体管与开关晶体管并联设置，允许电流流过其中，该电流与流过电负载和开关晶体管的电流成比例，并且用于测量流过开关晶体管的电流和 电负载。 电压控制电路控制电流测量用晶体管两端的电位差，以匹配开关晶体管两端的电位差，从而实现流过电流测量用晶体管的电流与流过开关晶体管的电流的比例， 电负载。

公开(公告)号：US5910736A

公开(公告)日：1999-06-08

申请号：US733636

申请日：1996-10-17

申请人： Junichi Nagata ,  Junji Hayakawa

发明人： Junichi Nagata ,  Junji Hayakawa

IPC分类号： H03K5/08 ,  H03F3/45 ,  H04L25/02 ,  H03K19/086

CPC分类号： H03F3/45085 ,  H03F3/45551 ,  H03F2203/45031 ,  H03F2203/45188 ,  H03F2203/45272 ,  H03F2203/45352 ,  H03F2203/45561 ,  H03F2203/45584 ,  H03F2203/45612 ,  H03F2203/45674

摘要： A differential-type data transmitter includes a differential amplifier pair (T1, T2, T4, T6, T8) having a plurality of transistors and receiving a pair of a first input signal and a second input signal. A load (T3, T5, T7) is connected to the differential amplifier pair. A detection circuit (T9, T10, I4, I5, I6, I7) connected to a junction between the differential amplifier pair and the load is operative for detecting whether or not the first and second input signals are outside a common-mode input voltage range with respect to the differential amplifier pair. A first output circuit (T12) connected to the detection circuit is operative for outputting a signal depending on an output signal from the differential amplifier pair. The signal outputted from the first output circuit is set to a given level when the detection circuit detects that the first and second input signals are outside the conmmon-mode input voltage range. A second output circuit (T11) connected to the detection circuit is operative for outputting a detection signal representing whether or not the detection circuit detects that the first and second input signals are outside the common-mode input voltage range.

摘要翻译： 差分型数据发送器包括具有多个晶体管并且接收一对第一输入信号和第二输入信号的差分放大器对（T1，T2，T4，T6，T8）。 负载（T3，T5，T7）连接到差分放大器对。 连接到差分放大器对和负载之间的结点的检测电路（T9，T10，I4，I5，I6，I7）可操作用于检测第一和第二输入信号是否在共模输入电压范围之外 相对于差分放大器对。 连接到检测电路的第一输出电路（T12）用于根据来自差分放大器对的输出信号输出信号。 当检测电路检测到第一和第二输入信号在辅助模式输入电压范围之外时，从第一输出电路输出的信号被设置为给定电平。 连接到检测电路的第二输出电路（T11）用于输出表示检测电路是否检测到第一和第二输入信号在共模输入电压范围之外的检测信号。

公开(公告)号：US20080231340A1

公开(公告)日：2008-09-25

申请号：US12076521

申请日：2008-03-19

申请人： Satoshi Shiraki ,  Hiroyuki Ban ,  Junichi Nagata

发明人： Satoshi Shiraki ,  Hiroyuki Ban ,  Junichi Nagata

IPC分类号： H03L5/00

CPC分类号： H03K19/018571 ,  H01L27/0251 ,  H03K5/003 ,  H03K19/00361

摘要： A level shift circuit includes a first capacitor circuit including capacitors connected in series between a ground and a predetermined potential, a first trigger circuit coupled to the predetermined potential side of the first capacitor circuit, an input terminal coupled to the ground side of the first capacitor circuit, a second capacitor circuit including capacitors connected in series between the ground and the predetermined potential, a second trigger circuit coupled to the predetermined potential side of the second capacitor circuit, an inverter coupled between the input terminal and the ground potential side of the second capacitor circuit, and a SR latch circuit having a first input coupled to an output of the first trigger circuit and a second input coupled to an output of the second trigger circuit.

摘要翻译： 电平移位电路包括：第一电容器电路，包括串联连接在接地和预定电位之间的电容器;耦合到第一电容器电路的预定电位侧的第一触发电路;耦合到第一电容器的接地侧的输入端子 电路，包括串联连接在接地和预定电位之间的电容器的第二电容器电路，耦合到第二电容器电路的预定电位侧的第二触发电路，耦合在第二电容器的输入端子和地电位侧之间的反相器 电容器电路和SR锁存电路，其具有耦合到第一触发电路的输出的第一输入和耦合到第二触发电路的输出的第二输入。

公开(公告)号：US06531855B2

公开(公告)日：2003-03-11

申请号：US09892534

申请日：2001-06-28

申请人： Takeshi Miki ,  Junichi Nagata ,  Hiroyuki Ban

发明人： Takeshi Miki ,  Junichi Nagata ,  Hiroyuki Ban

IPC分类号： G05F140

CPC分类号： G05F1/575 ,  Y10S323/901

摘要： A series circuit including a capacitor and a resistor for detecting variation of the output voltage of dc power supply is further provided. During startup, a charge current corresponding to the rising rate of the output voltage flows through the series circuit. This reduces the base current of the power transistor to suppress the rising rate to suppress overshoot and undershoot. A clamp circuit is provided to the differential amplifier for detecting the error voltage. This prevents the saturation in the differential amplifier or limit the voltage variation amplitude to accelerate the operation of the operational amplifier and suppress undershoot. A delay circuit for disabling to driving circuit for the power transistor for the initial interval may be further provided to suppress the initial rapid rise of the output voltage.

摘要翻译： 还提供一种包括用于检测直流电源的输出电压的变化的电容器和电阻器的串联电路。 在启动期间，与输出电压的上升率相对应的充电电流流过串联电路。 这降低了功率晶体管的基极电流，以抑制上升速率以抑制过冲和下冲。 钳位电路提供给差分放大器，用于检测误差电压。 这样可以防止差分放大器的饱和或者限制电压变化幅度，从而加速运算放大器的工作并抑制下冲。 可以进一步提供用于禁止用于初始间隔的功率晶体管的驱动电路的延迟电路，以抑制输出电压的初始快速上升。

公开(公告)号：US07639060B2

公开(公告)日：2009-12-29

申请号：US12076521

申请日：2008-03-19

申请人： Satoshi Shiraki ,  Hiroyuki Ban ,  Junichi Nagata

发明人： Satoshi Shiraki ,  Hiroyuki Ban ,  Junichi Nagata

IPC分类号： H03L5/00

CPC分类号： H03K19/018571 ,  H01L27/0251 ,  H03K5/003 ,  H03K19/00361

摘要： A level shift circuit includes a first capacitor circuit including capacitors connected in series between a ground and a predetermined potential, a first trigger circuit coupled to the predetermined potential side of the first capacitor circuit, an input terminal coupled to the ground side of the first capacitor circuit, a second capacitor circuit including capacitors connected in series between the ground and the predetermined potential, a second trigger circuit coupled to the predetermined potential side of the second capacitor circuit, an inverter coupled between the input terminal and the ground potential side of the second capacitor circuit, and a SR latch circuit having a first input coupled to an output of the first trigger circuit and a second input coupled to an output of the second trigger circuit.

摘要翻译： 电平移位电路包括：第一电容器电路，包括串联连接在接地和预定电位之间的电容器;耦合到第一电容器电路的预定电位侧的第一触发电路;耦合到第一电容器的接地侧的输入端子 电路，包括串联连接在接地和预定电位之间的电容器的第二电容器电路，耦合到第二电容器电路的预定电位侧的第二触发电路，耦合在第二电容器的输入端子和地电位侧之间的反相器 电容器电路和SR锁存电路，其具有耦合到第一触发电路的输出的第一输入和耦合到第二触发电路的输出的第二输入。