-
公开(公告)号：US20110128303A1
公开(公告)日：2011-06-02
申请号：US12783056
申请日：2010-05-19
申请人： Masao Yonemaru , Naoki Inoue , Hiroyuki Ishikawa
发明人： Masao Yonemaru , Naoki Inoue , Hiroyuki Ishikawa
CPC分类号： H05B33/0818 , G09G3/3406 , G09G2310/08 , G09G2320/064 , H05B33/0827 , H05B33/0887 , Y02B20/341 , Y02B20/347
摘要： A pulse modulator generates a first pulse signal having a duty ratio which is adjusted such that a detection voltage which indicates the electrical state of an LED string to be driven matches a predetermined reference voltage. A first pulse signal is applied to a primary coil of a pulse transformer. A DC/DC converter includes a switching element the ON/OFF operation of which is controlled according to a signal that originates at a secondary coil of the pulse transformer. The DC/DC converter stabilizes an input voltage Vdc, and supplies the input voltage Vdc thus stabilized to the anode of the LED string.
摘要翻译： 脉冲调制器产生具有调整后的占空比的第一脉冲信号，使得指示要驱动的LED串的电状态的检测电压与预定参考电压匹配。 第一脉冲信号被施加到脉冲变压器的初级线圈。 DC / DC转换器包括根据源自脉冲变压器的次级线圈的信号控制其ON / OFF操作的开关元件。 DC / DC转换器稳定输入电压Vdc，并且将如此稳定的输入电压Vdc提供给LED串的阳极。
-
公开(公告)号：US08730228B2
公开(公告)日：2014-05-20
申请号：US12783056
申请日：2010-05-19
申请人： Masao Yonemaru , Naoki Inoue , Hiroyuki Ishikawa
发明人： Masao Yonemaru , Naoki Inoue , Hiroyuki Ishikawa
CPC分类号： H05B33/0818 , G09G3/3406 , G09G2310/08 , G09G2320/064 , H05B33/0827 , H05B33/0887 , Y02B20/341 , Y02B20/347
摘要： A pulse modulator generates a first pulse signal having a duty ratio which is adjusted such that a detection voltage which indicates the electrical state of an LED string to be driven matches a predetermined reference voltage. A first pulse signal is applied to a primary coil of a pulse transformer. A DC/DC converter includes a switching element the ON/OFF operation of which is controlled according to a signal that originates at a secondary coil of the pulse transformer. The DC/DC converter stabilizes an input voltage Vdc, and supplies the input voltage Vdc thus stabilized to the anode of the LED string.
摘要翻译： 脉冲调制器产生具有调整后的占空比的第一脉冲信号，使得指示要驱动的LED串的电状态的检测电压与预定参考电压匹配。 第一脉冲信号被施加到脉冲变压器的初级线圈。 DC / DC转换器包括根据源自脉冲变压器的次级线圈的信号控制其ON / OFF操作的开关元件。 DC / DC转换器稳定输入电压Vdc，并且将如此稳定的输入电压Vdc提供给LED串的阳极。
-
公开(公告)号：US08653754B2
公开(公告)日：2014-02-18
申请号：US13008125
申请日：2011-01-18
申请人： Hiroki Kikuchi , Masao Yonemaru , Takashi Oki
发明人： Hiroki Kikuchi , Masao Yonemaru , Takashi Oki
CPC分类号： H03F3/347 , G05F3/262 , H03F3/087 , H03F2200/456 , H03F2200/91
摘要： A current driving circuit may include a reference voltage input terminal; a resistor connection terminal; an output terminal via which the light emitting element is connected; a reference voltage generating unit; a transistor arranged such that one terminal thereof is connected to the resistor connection terminal; and an operational amplifier including first and second non-inverting input terminals and a single inverting input terminal, and arranged such that the output terminal thereof is connected to a control terminal of the transistor, the internal reference voltage is input to the first non-inverting input terminal, the external reference voltage is input to the second non-inverting input terminal, and the inverting input terminal thereof is connected to the resistor connection terminal. When the external resistor is connected between the resistor connection terminal and a ground terminal, a driving current is output via the output terminal.
摘要翻译： 电流驱动电路可以包括参考电压输入端; 电阻连接端子; 连接发光元件的输出端子; 参考电压产生单元; 晶体管，其一端连接到电阻器连接端子; 以及包括第一和第二非反相输入端子和单反相输入端子的运算放大器，并且被布置为使得其输出端子连接到晶体管的控制端子，内部参考电压被输入到第一非反相 输入端子，外部参考电压输入到第二同相输入端子，其反相输入端子连接到电阻器连接端子。 当外部电阻连接在电阻连接端子和接地端子之间时，通过输出端子输出驱动电流。
-
公开(公告)号：US20070296388A1
公开(公告)日：2007-12-27
申请号：US11810940
申请日：2007-06-07
申请人： Yoshikazu Sasaki , Isao Yamamoto , Masao Yonemaru
发明人： Yoshikazu Sasaki , Isao Yamamoto , Masao Yonemaru
IPC分类号： G05F1/00
摘要： A power supply circuit includes a standard voltage generator, a regulator, a capacitor and a discharging circuit. The standard voltage generator is configured to generate a standard voltage. The regulator is configured to control an output voltage by use of a reference voltage based on the standard voltage outputted from the standard voltage generator, and to be capable of being switched ON/OFF. The capacitor is connected in parallel to the regulator between the standard voltage generator and the regulator. The discharging circuit is configured to discharge electrical charges from the capacitor while the regulator is in an OFF state.
摘要翻译： 电源电路包括标准电压发生器，调节器，电容器和放电电路。 标准电压发生器被配置为产生标准电压。 调节器被配置为通过使用基于从标准电压发生器输出的标准电压的参考电压来控制输出电压并且能够被接通/断开。 电容器与标准电压发生器和调节器之间的稳压器并联连接。 放电电路被配置为在调节器处于OFF状态时从电容器放电电荷。
-
公开(公告)号：US07456619B2
公开(公告)日：2008-11-25
申请号：US11810940
申请日：2007-06-07
申请人： Yoshikazu Sasaki , Isao Yamamoto , Masao Yonemaru
发明人： Yoshikazu Sasaki , Isao Yamamoto , Masao Yonemaru
IPC分类号： G05F1/00
摘要： A power supply circuit includes a standard voltage generator, a regulator, a capacitor and a discharging circuit. The standard voltage generator is configured to generate a standard voltage. The regulator is configured to control an output voltage by use of a reference voltage based on the standard voltage outputted from the standard voltage generator, and to be capable of being switched ON/OFF. The capacitor is connected in parallel to the regulator between the standard voltage generator and the regulator. The discharging circuit is configured to discharge electrical charges from the capacitor while the regulator is in an OFF state.
摘要翻译： 电源电路包括标准电压发生器，调节器，电容器和放电电路。 标准电压发生器被配置为产生标准电压。 调节器被配置为通过使用基于从标准电压发生器输出的标准电压的参考电压来控制输出电压并且能够被接通/断开。 电容器与标准电压发生器和调节器之间的稳压器并联连接。 放电电路被配置为在调节器处于OFF状态时从电容器放电电荷。
-
6.发明授权Current detection circuit, light receiving device using the same, and electronic device 失效电流检测电路，使用其的光接收装置和电子装置公开(公告)号：US07880126B2
公开(公告)日：2011-02-01
申请号：US12089784
申请日：2006-10-10
申请人： Masao Yonemaru
发明人： Masao Yonemaru
IPC分类号： H01J40/00
CPC分类号： G01J1/46 , G01R19/0061 , G01R19/0092
摘要： A first transistor is provided on a current path for a phototransistor. A first resistor is provided between one terminal of the first transistor and the power supply line. A second transistor forms a current mirror circuit in cooperation with the first transistor, which amplifies with a predetermined amplification factor the current that flows through the first transistor. A charge capacitor, one terminal of which is connected to a fixed electric potential, is charged with the current thus amplified. A second resistor is provided between one terminal of the second transistor and the power supply line.
摘要翻译： 在光电晶体管的电流路径上设置第一晶体管。 第一电阻器设置在第一晶体管的一个端子和电源线之间。 第二晶体管与第一晶体管协作形成电流镜电路，第一晶体管以预定的放大系数放大流过第一晶体管的电流。 一个端子连接到固定电位的充电电容器被充电了如此放大的电流。 第二电阻器设置在第二晶体管的一个端子和电源线之间。
-
公开(公告)号：US07642761B2
公开(公告)日：2010-01-05
申请号：US12256861
申请日：2008-10-23
申请人： Yoshikazu Sasaki , Isao Yamamoto , Masao Yonemaru
发明人： Yoshikazu Sasaki , Isao Yamamoto , Masao Yonemaru
IPC分类号： G05F1/00
摘要： A power supply circuit includes a standard voltage generator; a regulator to control an output voltage, and to be capable of being switched ON/OFF; a capacitor in parallel between the standard voltage generator and the regulator; a discharging circuit including a first switch and a second switch configured to discharge electrical charges from the capacitor via the second switch while the regulator is in an OFF state; and a starting controller configured to transmit a signal for controlling the first switch and the second switch. The first switch is connected in series between the standard voltage generator and the regulator. The second switch has one end connected to a connection node between the first switch and the regulator, and has another end connected to a ground. When the first switch is in OFF state, the second switch is turned to ON state while the regulator is in OFF state.
摘要翻译： 电源电路包括标准电压发生器; 用于控制输出电压并且能够被接通/断开的调节器; 在标准电压发生器和调节器之间并联的电容器; 放电电路，包括第一开关和第二开关，所述第二开关被配置为在所述调节器处于OFF状态时经由所述第二开关从所述电容器放电电荷; 以及启动控制器，被配置为发送用于控制所述第一开关和所述第二开关的信号。 第一个开关串联在标准电压发生器和调节器之间。 第二开关的一端连接到第一开关和调节器之间的连接节点，另一端连接到地。 当第一开关处于OFF状态时，第二开关在调节器处于OFF状态时转为ON状态。
-
8.发明申请CURRENT DETECTION CIRCUIT, LIGHT RECEIVING DEVICE USING THE SAME, AND ELECTRONIC DEVICE 失效电流检测电路，使用其的光接收装置和电子装置公开(公告)号：US20090278028A1
公开(公告)日：2009-11-12
申请号：US12089784
申请日：2006-10-10
申请人： Masao Yonemaru
发明人： Masao Yonemaru
CPC分类号： G01J1/46 , G01R19/0061 , G01R19/0092
摘要： A first transistor is provided on a current path for a phototransistor. A first resistor is provided between one terminal of the first transistor and the power supply line. A second transistor forms a current mirror circuit in cooperation with the first transistor, which amplifies with a predetermined amplification factor the current that flows through the first transistor. A charge capacitor, one terminal of which is connected to a fixed electric potential, is charged with the current thus amplified. A second resistor is provided between one terminal of the second transistor and the power supply line.
摘要翻译： 在光电晶体管的电流路径上设置第一晶体管。 第一电阻器设置在第一晶体管的一个端子和电源线之间。 第二晶体管与第一晶体管协作形成电流镜电路，第一晶体管以预定的放大系数放大流过第一晶体管的电流。 一个端子连接到固定电位的充电电容器被充电了如此放大的电流。 第二电阻器设置在第二晶体管的一个端子和电源线之间。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.017 秒)
