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1. 发明授权

US07821233B2 Charging circuit 有权
标题翻译：充电电路
公开(公告)号：US07821233B2
公开(公告)日：2010-10-26
申请号：US11801305
申请日：2007-05-09
申请人： Satoru Nate , Isao Yamamoto , Sachito Horiuchi
发明人： Satoru Nate , Isao Yamamoto , Sachito Horiuchi
IPC分类号： H02J7/00
CPC分类号： H02J7/06
摘要： In a charging circuit charging a battery based on a power supply voltage from an external power supply, a charging transistor is provided on a path from the external power supply to the battery. A charging control circuit is integrated on a semiconductor substrate, and adjusts an ON state of the charging transistor to control a charging current supplied to the battery. The voltage adjusting circuit provided on an electric power supply path from the external power supply to a power supply terminal of the charging control circuit generates a necessary voltage drop. The current adjusting circuit adjusts the ON state of the charging transistor such that a voltage of the battery is brought close to a predetermined voltage value. The clamp circuit clamps a voltage at the power supply terminal of the charging control circuit below a predetermined clamp voltage.
摘要翻译：在基于来自外部电源的电源电压对电池充电的充电电路中，在从外部电源到电池的路径上设置充电晶体管。充电控制电路集成在半导体衬底上，并且调节充电晶体管的导通状态以控制提供给电池的充电电流。设置在从外部电源到充电控制电路的电源端子的电力供给路径上的电压调节电路产生必要的电压降。电流调节电路调节充电晶体管的导通状态，使得电池的电压接近预定的电压值。钳位电路将充电控制电路的电源端子处的电压钳位在预定的钳位电压以下。

2. 发明申请

US20070263420A1 Charging circuit 有权
标题翻译：充电电路
公开(公告)号：US20070263420A1
公开(公告)日：2007-11-15
申请号：US11801305
申请日：2007-05-09
申请人： Satoru Nate , Isao Yamamoto , Sachito Horiuchi
发明人： Satoru Nate , Isao Yamamoto , Sachito Horiuchi
IPC分类号： H02M7/00
CPC分类号： H02J7/06
摘要： In a charging circuit charging a battery based on a power supply voltage from an external power supply, a charging transistor is provided on a path from the external power supply to the battery. A charging control circuit is integrated on a semiconductor substrate, and adjusts an ON state of the charging transistor to control a charging current supplied to the battery. The voltage adjusting circuit provided on an electric power supply path from the external power supply to a power supply terminal of the charging control circuit generates a necessary voltage drop. The current adjusting circuit adjusts the ON state of the charging transistor such that a voltage of the battery is brought close to a predetermined voltage value. The clamp circuit clamps a voltage at the power supply terminal of the charging control circuit below a predetermined clamp voltage.
摘要翻译：在基于来自外部电源的电源电压对电池充电的充电电路中，在从外部电源到电池的路径上设置充电晶体管。充电控制电路集成在半导体衬底上，并且调节充电晶体管的导通状态以控制提供给电池的充电电流。设置在从外部电源到充电控制电路的电源端子的电力供给路径上的电压调节电路产生必要的电压降。电流调节电路调节充电晶体管的导通状态，使得电池的电压接近预定的电压值。钳位电路将充电控制电路的电源端子处的电压钳位在预定的钳位电压以下。

3. 发明授权

US06822403B2 Light emitting element drive device and electronic device having light emitting element 有权
标题翻译：发光元件驱动装置和具有发光元件的电子装置
公开(公告)号：US06822403B2
公开(公告)日：2004-11-23
申请号：US10482430
申请日：2003-12-29
申请人： Sachito Horiuchi , Ken Hoshino , Isao Yamamoto
发明人： Sachito Horiuchi , Ken Hoshino , Isao Yamamoto
IPC分类号： H05B3700
CPC分类号： H05B33/0815 , G09G3/30 , H05B33/0827 , H05B33/0851
摘要： An electronic apparatus is equipped with light emitting elements (21-26) such as LEDs. The light emitting elements are driven by a power supply circuit of the drive device (10) at a high step-up voltage (Vh). The drive device (10) has a multiplicity of constant-current drivers (12-14), a selection circuit (18), and a control circuit (11). The drivers are turned ON or OFF in accordance with respective instruction signals (S1-S3) supplied thereto to provide associated series with currents to activate the series for emission of light when associated drivers are turned ON. The selection circuit (18) selects the lowest one of the voltages impressed on the drivers and outputs the selected lowest voltage as a detection voltage. The control circuit (11) automatically controls the voltage Vh so as to equilibrate the detection voltage with a low reference voltage at which the drivers can perform required constant-current operations. Thus, the drive device can fully activate the light emitting elements for emission of light while suppressing energy loss in the drivers.
摘要翻译：电子设备配备有诸如LED的发光元件（21-26）。发光元件由驱动装置（10）的电源电路以高升压电压（Vh）驱动。驱动装置（10）具有多个恒流驱动器（12-14），选择电路（18）和控制电路（11）。根据提供给其的相应指令信号（S1-S3），驱动器被接通或关闭，以提供相关联的串联电流，以在相关联的驱动器被接通时激活用于发光的串联。选择电路（18）选择施加在驱动器上的最低电压，并输出所选择的最低电压作为检测电压。控制电路（11）自动控制电压Vh，以使驱动器可执行所需恒流操作的低参考电压平衡检测电压。因此，驱动装置可以在抑制驱动器中的能量损失的同时完全启动用于发光的发光元件。

4. 发明授权

US06949892B2 Light emitting element drive device and electronic device light emitting element 失效
标题翻译：发光元件驱动装置和电子装置发光元件
公开(公告)号：US06949892B2
公开(公告)日：2005-09-27
申请号：US10482429
申请日：2003-05-01
申请人： Sachito Horiuchi , Noboru Kagemoto , Isao Yamamoto
发明人： Sachito Horiuchi , Noboru Kagemoto , Isao Yamamoto
IPC分类号： H05B37/02 , G09G3/34 , H01L33/00 , H05B33/08
CPC分类号： G09G3/342 , G09G2310/0221 , G09G2330/02 , H05B33/0815 , H05B33/0827 , Y02B20/347
摘要： An electronic apparatus includes a display device (20) and a drive device (10) for driving the display (20). The display device (20) is equipped with light emitting elements (21-26) such as LEDs driven at high voltages. The display device (20) has a multiplicity of light emitting element series each supplied at one end thereof with a high voltage (Vh) higher than a given power supply voltage (Vdd). The drive device (10) has drivers (12-14) each having one end connected to a respective terminal to which a corresponding one of said multiple light emitting elements series is connected. The drivers are turned ON and OFF in accordance with instruction signals (S1-S3) such that, when turned ON, they provide currents to the series connected. The drive device (10) also has a multiplicity of bypass current source (15-17) for providing the light emitting element series with currents not sufficient to activate the series for emission of light when corresponding drivers are turned OFF. The drive device can be constructed using ICs that are designed to operate at low voltages, thereby facilitating reduction of electric power loss by the electronic apparatus.
摘要翻译：电子设备包括用于驱动显示器（20）的显示设备（20）和驱动设备（10）。显示装置（20）配备有以高电压驱动的LED的发光元件（21-26）。显示装置（20）具有多个发光元件系列，每个发光元件串的一端以比给定电源电压（Vdd）高的高电压（Vh）提供。驱动装置（10）具有驱动器（12-14），每个驱动器的一端连接到相应的端子，所述多个发光元件系列中的相应一个串联连接到该端子。驱动器根据指令信号（S 1- S 3）打开和关闭，使得当接通时，它们为连接的串联提供电流。驱动装置（10）还具有多个旁路电流源（15-17），用于在相应的驱动器关闭时向发光元件系列提供不足以激活用于发光的串联的电流。可以使用被设计为在低电压下操作的IC来构造驱动装置，从而有助于减少电子设备的电力损失。

5. 发明授权

US07898217B2 Charge control circuit 有权
标题翻译：充电控制电路
公开(公告)号：US07898217B2
公开(公告)日：2011-03-01
申请号：US11801323
申请日：2007-05-09
申请人： Satoru Nate , Isao Yamamoto
发明人： Satoru Nate , Isao Yamamoto
IPC分类号： H02J7/00
CPC分类号： H02J7/0052 , H02J7/0068
摘要： In a charge control circuit that adjusts a charging current flowing through a battery to be charged from a power supply, a sense resistor is provided on a charging path to the battery from an external power supply. A charging current adjustment circuit adjusts the charging current based on an error voltage between a voltage drop across the sense resistor and a predetermined reference voltage. The charging control circuit is integrated in a package. The charging current is inputted to a current input terminal. A battery terminal outputs the charging current to the battery. The current input terminal and the battery terminal also function as terminals used to measure a resistance value of the sense resistor. A voltage monitoring terminal is provided to measure the reference voltage in an inspection process.
摘要翻译：在从电源调整流过待充电电池的充电电流的充电控制电路中，从外部电源向充电路径提供感测电阻。充电电流调节电路基于检测电阻器两端的电压降与预定参考电压之间的误差电压来调节充电电流。充电控制电路集成在一个封装中。充电电流被输入到电流输入端。电池端子输出到电池的充电电流。电流输入端子和电池端子也用作测量检测电阻的电阻值的端子。提供电压监视端子以在检查过程中测量参考电压。

6. 发明授权

US08134106B2 Current detection circuit 有权
标题翻译：电流检测电路
公开(公告)号：US08134106B2
公开(公告)日：2012-03-13
申请号：US12088172
申请日：2006-09-14
申请人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
发明人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
IPC分类号： G01J1/32 , H01J40/14 , H03K17/78 , H04B10/00 , H04N3/14
CPC分类号： G01J1/46 , G01R19/0092 , H01L31/14 , H04N5/2351 , H04N5/2354
摘要： A first transistor may be provided on a current path of a photo transistor. The bias current path may include a bias switch and a first bias resistor connected in series and is provided in parallel with a main current path including the phototransistor. A second transistor may configure a current mirror circuit with the first transistor, and generates second current formed by multiplying the first current flowing in the first transistor by a predetermined factor. The second current is charged in the charging capacitor and converted into a voltage. The bias current path turns on prior to the start of light reception of the phototransistor and turns off after a predetermined period has elapsed from the start of light reception of the phototransistor.
摘要翻译：第一晶体管可以设置在光电晶体管的电流路径上。偏置电流路径可以包括串联连接的偏置开关和第一偏置电阻器，并且与包括光电晶体管的主电流路径平行地设置。第二晶体管可以配置与第一晶体管的电流镜像电路，并且产生通过将在第一晶体管中流动的第一电流乘以预定因子而形成的第二电流。第二电流在充电电容器中充电并转换成电压。在光电晶体管的光接收开始之前，偏置电流路径导通，并且在从光电晶体管的光接收开始经过预定时间之后关断偏置电流。

7. 发明申请

US20090242734A1 CURRENT DETECTION CIRCUIT, PHOTORECEIVER USING THE SAME, LIGHT EMISSION CONTROL DEVICE, AND ELECTRONIC DEVICE USING THE SAME 有权
标题翻译：电流检测电路，使用该电路的光电转换器，光发射控制装置和使用其的电子装置
公开(公告)号：US20090242734A1
公开(公告)日：2009-10-01
申请号：US12088172
申请日：2006-09-14
申请人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
发明人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
IPC分类号： G01J1/44
CPC分类号： G01J1/46 , G01R19/0092 , H01L31/14 , H04N5/2351 , H04N5/2354
摘要： A first transistor may be provided on a current path of a photo transistor. The bias current path may include a bias switch and a first bias resistor connected in series and is provided in parallel with a main current path including the phototransistor. A second transistor may configure a current mirror circuit with the first transistor, and generates second current formed by multiplying the first current flowing in the first transistor by a predetermined factor. The second current is charged in the charging capacitor and converted into a voltage. The bias current path turns on prior to the start of light reception of the phototransistor and turns off after a predetermined period has elapsed from the start of light reception of the phototransistor.
摘要翻译：第一晶体管可以设置在光电晶体管的电流路径上。偏置电流路径可以包括串联连接的偏置开关和第一偏置电阻器，并且与包括光电晶体管的主电流路径平行地设置。第二晶体管可以配置与第一晶体管的电流镜像电路，并且产生通过将在第一晶体管中流动的第一电流乘以预定因子而形成的第二电流。第二电流在充电电容器中充电并转换成电压。在光电晶体管的光接收开始之前，偏置电流路径导通，并且在从光电晶体管的光接收开始经过预定时间之后关断偏置电流。

8. 发明申请

US20090129768A1 CONTROL CIRCUIT FOR SELF-EXCITATION DC/DC CONVERTER, LIGHT EMITTING DEVICE USING SUCH CONTROL CIRCUIT, AND ELECTRONIC DEVICE 有权
标题翻译：自激式DC / DC转换器的控制电路，使用这种控制电路的发光装置和电子装置
公开(公告)号：US20090129768A1
公开(公告)日：2009-05-21
申请号：US12096803
申请日：2006-12-06
申请人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
发明人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
IPC分类号： G03B7/26 , G05F1/46 , H05B37/02
CPC分类号： G03B15/05 , G03B2215/05 , H02M3/156
摘要： A switching transistor is connected to the primary coil of a transformer. A first resistor is provided such that one end thereof is connected to the switching transistor, and the other end thereof is grounded. A first voltage comparator compares a first detection voltage with a first threshold voltage. A second voltage comparator compares a second detection voltage with a second threshold voltage. A switching control unit controls the ON/OFF state of the switching transistor according to the output signals of the first voltage comparator and the second voltage comparator. A first electrode pad through a fourth electrode pad are provided to the respective nodes of the switching transistor and the first resistor.
摘要翻译：开关晶体管连接到变压器的初级线圈。提供第一电阻器，使得其一端连接到开关晶体管，并且其另一端接地。第一电压比较器将第一检测电压与第一阈值电压进行比较。第二电压比较器将第二检测电压与第二阈值电压进行比较。开关控制单元根据第一电压比较器和第二电压比较器的输出信号来控制开关晶体管的导通/截止状态。通过第四电极焊盘的第一电极焊盘设置到开关晶体管和第一电阻器的各个节点。

9. 发明授权

US07894717B2 Control circuit for self exciting DC/DC converter 有权
标题翻译：自激式DC / DC转换器控制电路
公开(公告)号：US07894717B2
公开(公告)日：2011-02-22
申请号：US12096803
申请日：2006-12-06
申请人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
发明人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
IPC分类号： G03B7/26
CPC分类号： G03B15/05 , G03B2215/05 , H02M3/156
摘要： A switching transistor is connected to the primary coil of a transformer. A first resistor is provided such that one end thereof is connected to the switching transistor, and the other end thereof is grounded. A first voltage comparator compares a first detection voltage with a first threshold voltage. A second voltage comparator compares a second detection voltage with a second threshold voltage. A switching control unit controls the ON/OFF state of the switching transistor according to the output signals of the first voltage comparator and the second voltage comparator. A first electrode pad through a fourth electrode pad are provided to the respective nodes of the switching transistor and the first resistor.
摘要翻译：开关晶体管连接到变压器的初级线圈。提供第一电阻器，使得其一端连接到开关晶体管，并且其另一端接地。第一电压比较器将第一检测电压与第一阈值电压进行比较。第二电压比较器将第二检测电压与第二阈值电压进行比较。开关控制单元根据第一电压比较器和第二电压比较器的输出信号来控制开关晶体管的导通/截止状态。通过第四电极焊盘的第一电极焊盘设置到开关晶体管和第一电阻器的各个节点。

10. 发明申请

US20070290655A1 Charge control circuit 有权
标题翻译：充电控制电路
公开(公告)号：US20070290655A1
公开(公告)日：2007-12-20
申请号：US11801323
申请日：2007-05-09
申请人： Satoru Nate , Isao Yamamoto
发明人： Satoru Nate , Isao Yamamoto
IPC分类号： H02J7/04 , H02J7/24
CPC分类号： H02J7/0052 , H02J7/0068
摘要： In a charge control circuit that adjusts a charging current flowing through a battery to be charged from a power supply, a sense resistor is provided on a charging path to the battery from an external power supply. A charging current adjustment circuit adjusts the charging current based on an error voltage between a voltage drop across the sense resistor and a predetermined reference voltage. The charging control circuit is integrated in a package. The charging current is inputted to a current input terminal. A battery terminal outputs the charging current to the battery. The current input terminal and the battery terminal also function as terminals used to measure a resistance value of the sense resistor. A voltage monitoring terminal is provided to measure the reference voltage in an inspection process.
摘要翻译：在从电源调整流过待充电电池的充电电流的充电控制电路中，从外部电源向充电路径提供感测电阻。充电电流调节电路基于检测电阻器两端的电压降与预定参考电压之间的误差电压来调节充电电流。充电控制电路集成在一个封装中。充电电流被输入到电流输入端。电池端子输出到电池的充电电流。电流输入端子和电池端子也用作测量检测电阻的电阻值的端子。提供电压监视端子以在检查过程中测量参考电压。

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