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
    • 32. 发明申请
    • 冷陰極管のための点灯装置における制御方法および点灯装置、並びに液晶表示装置
    • 照明设备,照明设备和液晶显示控制冷阴极管的方法
    • WO2009040874A1
    • 2009-04-02
    • PCT/JP2007/001054
    • 2007-09-28
    • 富士通株式会社金安 修
    • 金安 修
    • H05B41/24H05B41/392
    • H05B41/285H05B41/392Y02B20/183
    •  輝度の調整範囲を広くとることができるとともに、通常の使用時においてリード線の断線や接続コネクタの嵌合不十分が発生したときは保護回路が正常に動作し、より大きな故障に繋がることのないようにすることを目的とする。冷陰極管に電流を流すためのインバータ、輝度調整を行うための操作部、操作部による輝度調整に応じてインバータを制御し冷陰極管に流れる電流を可変するインバータ制御回路、および冷陰極管に流れる電流が設定値よりも小さくなったときにインバータを停止させるための保護回路を有した、冷陰極管のための点灯装置における制御方法であって、操作部による輝度調整が輝度しきい値よりも低く設定されたときに、保護回路が動作しないように制御する。
    • 一种用于控制照明装置中的冷阴极管的方法,其中确保更宽的亮度调节范围,并且在正常操作时间期间,在导线断开或连接连接器的松动装配的情况下,保护电路正常工作以避免 造成灾难性的失败。 照明装置包括用于提供流过冷阴极管的电流的逆变器,用于调节亮度的操作部分的逆变器控制电路,根据由操作部分调节的亮度来控制逆变器的变换器控制电路, 阴极管和保护电路,当流过冷阴极管的电流降低到设定值以下时,停止逆变器的动作。 当在操作部分的亮度调整中将亮度设置为低于亮度阈值时,该方法控制保护电路不工作。
    • 35. 发明申请
    • POWER SUPPLY
    • 电源
    • WO1994016492A1
    • 1994-07-21
    • PCT/AU1993000315
    • 1993-06-28
    • H.P.M. INDUSTRIES PTY LIMITEDHAYASHI, Koichi
    • H.P.M. INDUSTRIES PTY LIMITED
    • H02M01/12
    • H02M1/425H02M7/537H05B41/28H05B41/285Y02B20/183Y02B70/126
    • A power supply which incorporates a high frequency inverter and which is suitable for use in conjunction with a fluorescent lamp. The power supply comprises a full wave rectifier (10) and a reservoir capacitor (12) connected across the rectifier for the purpose of providing successive half-cycles of the voltage waveform V2 across the capacitor with a minimum instantaneous voltage level greater than zero. A solid state switching device (14) and an oscillator (15) are connected in circuit with the reservoir capacitor. The oscillator generates a gating signal V3 at a frequency significantly greater than that of the voltage waveform V2 across the reservoir capacitor and applies the gating signal to the switching device. The switching device is arranged to provide an output voltage V4 which has a frequency determined by the applied gating signal V3 and which has a peak amplitude value which varies over successive cycles with the waveform of the voltage V2 across the reservoir capacitor.
    • 包含高频逆变器并且适合与荧光灯一起使用的电源。 电源包括跨整流器连接的全波整流器(10)和储存电容器(12),用于以大于零的最小瞬时电压电平在电容器两端提供电压波形V2的连续半周期。 固态开关装置(14)和振荡器(15)与储存电容器电路连接。 振荡器产生的频率明显大于储层电容器两端的电压波形V2的频率,并将门控信号施加到开关装置。 开关装置被布置成提供具有由所施加的选通信号V3确定的频率的输出电压V4,并且其具有随着存储电容器两端的电压V2的波形在连续循环中变化的峰值振幅值。
    • 38. 发明授权
    • Apparatus and method for driving backlight of liquid crystal display apparatus
    • 用于驱动液晶显示装置的背光的装置和方法
    • US08654067B2
    • 2014-02-18
    • US13036328
    • 2011-02-28
    • Tae Wook Lee
    • Tae Wook Lee
    • G09G3/36
    • H05B41/2855G09G3/3406G09G3/3648G09G2330/04H05B41/285Y02B20/186
    • A backlight driving apparatus of a liquid crystal display (LCD) apparatus including a master trans and a slave trans for supplying a current to a plurality of lamps, and a master driver and a slave driver for driving the lamps, includes an operated condition unit that converts an AC voltage generated in accordance with a phase difference between a master AC voltage and a slave AC voltage fed back from the master trans and the slave trans, respectively, into an analog DC voltage; a protect controller that determines an error is generated during an operation of the lamps using the analog DC voltage and outputs an operating error signal when an error is generated; and a lamp driving controller that stops driving the master driver and the slave driver in response to the operating error signal.
    • 一种液晶显示器(LCD)装置的背光驱动装置,包括用于向多个灯提供电流的主转换器和从器件反相器,以及用于驱动灯的主驱动器和从驱动器,包括操作状态单元, 将根据主交流电压和从主反向反相的从交流电压之间的相位差分别产生的交流电压转换为模拟直流电压; 在使用模拟DC电压的灯的操作期间产生确定错误的保护控制器,并且当产生错误时输出操作错误信号; 以及灯驱动控制器,其响应于操作误差信号停止驱动主驱动器和从驱动器。
    • 39. 发明授权
    • Reference signal generator and PWM control circuit for LCD backlight
    • 用于LCD背光的参考信号发生器和PWM控制电路
    • US08427068B2
    • 2013-04-23
    • US12646151
    • 2009-12-23
    • Yu Jin JangJeong In Cheon
    • Yu Jin JangJeong In Cheon
    • H05B37/02
    • H05B41/285
    • There are provided a reference signal generator and a PWM control circuit for LCD backlight. The reference signal generator and the PWM control circuit for LCD backlight may be configured to respectively include: a current control unit that controls generation of a variable current sequentially changing; a current generating unit that generates a variable current changing sequentially; and a reference signal generating unit that controls charging until a charged voltage charged by the variable current generated by the current generating unit reaches a first reference voltage level, starts discharging when the charged voltage reaches the first reference voltage level, controls discharging until the charged voltage reaches a second reference voltage level, and generates a triangular wave reference signal that has a frequency buffering interval in which a frequency sequentially changes when the initial driving completion signal or the protection signal is input.
    • 为LCD背光源提供参考信号发生器和PWM控制电路。 参考信号发生器和用于LCD背光的PWM控制电路可以被配置为分别包括:电流控制单元,其控制顺序变化的可变电流的产生; 电流产生单元,其生成顺序变化的可变电流; 以及参考信号生成单元,其控制充电,直到由所述电流产生单元产生的可变电流充电的充电电压达到第一基准电压电平,当充电电压达到第一参考电压电平时开始放电,控制放电直到充电电压 达到第二参考电压电平,并且产生具有频率缓冲间隔的三角波参考信号,其中,当输入初始驱动完成信号或保护信号时,频率顺次改变。