会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Current driving circuit
    • 电流驱动电路
    • US08653754B2
    • 2014-02-18
    • US13008125
    • 2011-01-18
    • Hiroki KikuchiMasao YonemaruTakashi Oki
    • Hiroki KikuchiMasao YonemaruTakashi Oki
    • H05B37/02H03K3/26G05F1/10
    • H03F3/347G05F3/262H03F3/087H03F2200/456H03F2200/91
    • 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.
    • 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。
    • 6. 发明授权
    • Constant-voltage power supply unit
    • 恒压电源单元
    • US07012791B2
    • 2006-03-14
    • US10968311
    • 2004-10-19
    • Hiroki Kikuchi
    • Hiroki Kikuchi
    • H02H7/00G05F1/573
    • G05F1/5735
    • A constant voltage supply unit having a high-speed load response, equipped with a fold-back type over-current protection function in which an output current detection voltage indicative of the output current is compared with the sum of a feedback voltage indicative of the output voltage and an offset voltage. The over-current protection function has a characteristic that the offset voltage is inversely proportional to the output-current detection voltage, so that the offset voltage is large when the output-current detection voltage (or the output current) is low, and decreases with the output-current detection voltage. In addition, the constant-voltage power supply unit allows enhance feedback of ac components in the feedback loop so as to enhance the ESR of the load-side capacitor, thereby securing phase compensation to prevent oscillations in the feedback loop.
    • 具有高速负载响应的恒压电源单元,其具有折返式过电流保护功能,其中将表示输出电流的输出电流检测电压与表示输出的反馈电压之和进行比较 电压和偏移电压。 过电流保护功能具有偏移电压与输出电流检测电压成反比的特性,当输出电流检测电压(或输出电流)低时,偏移电压较大,并随着 输出电流检测电压。 此外,恒压电源单元允许增强反馈回路中交流分量的反馈,从而增强负载侧电容器的ESR,从而确保相位补偿以防止反馈回路中的振荡。
    • 8. 发明申请
    • Constant-voltage power supply unit
    • 恒压电源单元
    • US20050083027A1
    • 2005-04-21
    • US10968311
    • 2004-10-19
    • Hiroki Kikuchi
    • Hiroki Kikuchi
    • G05F1/56G05F1/10G05F1/40G05F1/573H02M3/156
    • G05F1/5735
    • A constant voltage supply unit having a high-speed load response, equipped with a fold-back type over-current protection function in which an output current detection voltage indicative of the output current is compared with the sum of a feedback voltage indicative of the output voltage and an offset voltage. The over-current protection function has a characteristic that the offset voltage is inversely proportional to the output-current detection voltage, so that the offset voltage is large when the output-current detection voltage (or the output current) is low, and decreases with the output-current detection voltage. In addition, the constant-voltage power supply unit allows enhance feedback of ac components in the feedback loop so as to enhance the ESR of the load-side capacitor, thereby securing phase compensation to prevent oscillations in the feedback loop.
    • 具有高速负载响应的恒压电源单元,其具有折返式过电流保护功能,其中将表示输出电流的输出电流检测电压与表示输出的反馈电压之和进行比较 电压和偏移电压。 过电流保护功能具有偏移电压与输出电流检测电压成反比的特性,当输出电流检测电压(或输出电流)低时,偏移电压较大,并随着 输出电流检测电压。 此外,恒压电源单元允许增强反馈回路中交流分量的反馈,从而增强负载侧电容器的ESR,从而确保相位补偿以防止反馈回路中的振荡。
    • 10. 发明授权
    • Laser light emitting device, laser beacon device and laser imager
display device
    • 激光发光装置,激光信标装置和激光成像仪显示装置
    • US5832009A
    • 1998-11-03
    • US698739
    • 1996-08-16
    • Hiroki Kikuchi
    • Hiroki Kikuchi
    • G02F1/35H01S3/10
    • G02F1/3532G02F1/353G02F1/3534
    • A laser beam generating device which, by addition of a simplified structure, can enlarge the spectral width of the laser light and lower the coherence to a moderate value. The laser light generating device includes a first laser light source 31, a second laser light source 32, phase modulation units 34, 35 for phase-modulating the beams from the light sources with a sole frequency component or plural frequency components, and an sum frequency generating unit 33 for producing a light beam of the shorter wavelength based on the wavelength of the light phase-modulated by the phase modulation units 34, 35. The fundamental wavelength laser light generated by the first laser light source 31 is phase-modulated by the phase modulation unit 34 based on a pre-set modulation amplitude and the modulation frequency so as to be enlarged in spectral width before being incident on the sum frequency generating unit 33. The sum frequency generating unit 33 generates an sum frequency based on the laser light beams from the light sources for conversion to short wavelengths and for enlarging the spectral width. The result is that the distance of coherence of the outgoing laser light is shortened for removing the speckle noise.
    • 激光束产生装置,其通过添加简化的结构可以扩大激光的光谱宽度并将相干性降低到中等值。 激光产生装置包括第一激光光源31,第二激光光源32,相位调制单元34,35,用于以单个频率分量或多个频率分量相位调制来自光源的光束,以及和频率 生成单元33,用于基于由相位调制单元34,35进行了相位调制的光的波长来产生较短波长的光束。由第一激光光源31产生的基波长激光被相位调制 相位调制单元34基于预设的调制幅度和调制频率,以便在入射到和频产生单元33之前在频谱宽度上被放大。和频产生单元33基于激光产生和频 来自光源的光束转换成短波长并扩大光谱宽度。 结果是,出射激光的相干距离缩短以消除斑点噪声。