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公开(公告)号：US08049438B2
公开(公告)日：2011-11-01
申请号：US12229010
申请日：2008-08-18
Applicant: Da Liu , ShengTai Lee , Youling Li
Inventor： Da Liu , ShengTai Lee , Youling Li
CPC classification number: H05B41/3927 , H05B41/2828 , Y02B20/186
Abstract: A driving circuit for driving loads includes a switch circuit, a transformer, a current sensing circuit, and an inverter controller. The switch circuit and the transformer are used for converting a DC electric power to an AC electric power so as to energize the loads. The current sensing circuit coupled to the loads generates a feedback current signal indicative of a current flowing through the loads. The inverter controller includes a switch drive circuit, a current regulation circuit receiving the feedback current signal, and a mode controller circuit. The switch drive circuit controls the switch circuit so as to adjust power delivered to the primary winding of the transformer in accordance with the feedback current signal. The mode controller disables the switch circuit through the switch drive circuit if the external signal is in an absence state for a predetermined period.
Abstract translation: 用于驱动负载的驱动电路包括开关电路，变压器，电流感测电路和逆变器控制器。 开关电路和变压器用于将直流电力转换为交流电力以使负载通电。 耦合到负载的电流感测电路产生指示流过负载的电流的反馈电流信号。 逆变器控制器包括开关驱动电路，接收反馈电流信号的电流调节电路和模式控制器电路。 开关驱动电路控制开关电路，以便根据反馈电流信号来调节输送到变压器的初级绕组的功率。 如果外部信号在预定时间段内处于不在状态，则模式控制器通过开关驱动电路来禁止开关电路。
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公开(公告)号：US20080067944A1
公开(公告)日：2008-03-20
申请号：US11600615
申请日：2006-11-15
Applicant: Xiaojun Wang , Sheng-Tai Lee , Youling Li , Da Liu , Ru Guo
Inventor： Xiaojun Wang , Sheng-Tai Lee , Youling Li , Da Liu , Ru Guo
CPC classification number: H05B41/2822
Abstract: A circuit structure for LCD backlight is disclosed in the present invention. The circuit structure includes an inverter topology, a current balance circuit, and a plurality of loads. The current balance circuit is coupled to the plurality of loads and capable of balancing current of N loads by using N/2-1 balance chokes. The circuit structure may further include a protection circuit which is coupled to the low voltage sides of the plurality of loads. The protection circuit is capable of sensing lamp voltages and providing a feedback signal to a controller. Furthermore, the protection circuit is composed of count-reduced and cost-competitive electronic elements.
Abstract translation: 在本发明中公开了用于LCD背光的电路结构。 电路结构包括逆变器拓扑，电流平衡电路和多个负载。 目前的平衡电路耦合到多个负载，并能够通过使用N / 2-1平衡扼流圈平衡N个负载的电流。 电路结构还可以包括耦合到多个负载的低电压侧的保护电路。 保护电路能够感测灯电压并向控制器提供反馈信号。 此外，保护电路由数量减少和成本竞争的电子元件组成。
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公开(公告)号：US20070046217A1
公开(公告)日：2007-03-01
申请号：US11216650
申请日：2005-08-31
Applicant: Da Liu
Inventor： Da Liu
IPC: H05B41/36
CPC classification number: H05B41/2824 , Y10S315/07
Abstract: A method according to one embodiment may include supplying power to plurality of External Electrode Fluorescent Lamps (EEFLs). The method of this embodiment may also include generating signals proportional to the voltage of each EEFL. The method of this embodiment may also include generating a feedback signal indicative of the state of one or more of the plurality of EEFLs based on, at least in part, the value of at least one signal proportional to the voltage of each EEFL. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.
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公开(公告)号：US06897698B1
公开(公告)日：2005-05-24
申请号：US10448496
申请日：2003-05-30
Applicant: Virgil Ioan Gheorghiu , Da Liu
Inventor： Virgil Ioan Gheorghiu , Da Liu
CPC classification number: H02M3/158 , H02M3/33569
Abstract: The present invention provides an inverter controller comprising a drive circuit that generates a plurality of switch drive signals for inverter applications. In some exemplary embodiments, the drive circuit operates by reversing the command level of an error signal. In other embodiments, the drive circuit operates by using a half period of a sawtooth signal. In still other embodiments, the drive circuit operates by using a double period opposite shifting pulses method. The present invention also provides a PWM signal generator circuit that generates periodic PWM switch drive signals symmetrical to the minimum or maximum of a sawtooth waveform.
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Patent Agency Ranking
公开(公告)号：US08613770B2
公开(公告)日：2013-12-24
申请号：US13388748
申请日：2010-07-19
Applicant: Wei Lei , Baojun Han , Zixiang Wu , Da Liu , Yabo Yan , Jiangjun Zhou , Xiong Zhao , Suochao Fu
Inventor： Wei Lei , Baojun Han , Zixiang Wu , Da Liu , Yabo Yan , Jiangjun Zhou , Xiong Zhao , Suochao Fu
IPC: A61F2/44
CPC classification number: A61F2/44 , A61F2/30744 , A61F2/4425 , A61F2002/30495 , A61F2002/30578 , A61F2002/30649 , A61F2002/30884 , A61F2002/30904 , A61F2220/0025 , A61F2310/00023 , A61F2310/00029 , A61F2310/00796
Abstract: An artificial cervical vertebrae composite joint is composed of two upper and lower fixing members disposed vertically symmetrically, a cervical vertebrae body member, and two connection members, the cervical vertebrae body member being connected between the fixing members through the connection members. The fixing members each have an L shape and comprise a front wing part and a base part. A locking screw hole is formed in the front wing part, and a skidproof groove provided with an inverted tooth and a protrusion is disposed on a middle portion of the base part. A bone grafting hole is transversely disposed through a middle portion of the cervical vertebrae body member, and two cavities are disposed on both upper and lower sides of the cervical vertebrae body member at an axial center of the cervical vertebrae body member to mount the connection members. The connection member has one end mounted in the cavity by means of a fixing ring, and another end connected with the fixing member to form a stable sliding-trough type ball-and-socket joint.
Abstract translation: 人造颈椎复合关节由垂直对称设置的两个上下固定构件，颈椎体构件和两个连接构件组成，颈椎主体构件通过连接构件连接在固定构件之间。 固定构件各自具有L形并且包括前翼部和基部。 在前翼部形成有锁定螺纹孔，在基部的中部设置有设置有反转齿和突起的防滑槽。 骨移植孔横向设置穿过颈椎体部件的中间部分，并且在颈椎主体部件的轴向中心处，在颈椎体部件的上下两侧设置两个空腔，以安装连接部件 。 连接构件通过固定环一端安装在空腔中，另一端与固定构件连接，形成稳定的滑槽式球窝接头。
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公开(公告)号：US20120197400A1
公开(公告)日：2012-08-02
申请号：US13388748
申请日：2010-07-19
Applicant: Wei Lei , Baojun Han , Zixiang Wu , Da Liu , Yabo Yan , Jiangjun Zhou , Xiong Zhao , Suochao Fu
Inventor： Wei Lei , Baojun Han , Zixiang Wu , Da Liu , Yabo Yan , Jiangjun Zhou , Xiong Zhao , Suochao Fu
IPC: A61F2/44
CPC classification number: A61F2/44 , A61F2/30744 , A61F2/4425 , A61F2002/30495 , A61F2002/30578 , A61F2002/30649 , A61F2002/30884 , A61F2002/30904 , A61F2220/0025 , A61F2310/00023 , A61F2310/00029 , A61F2310/00796
Abstract: An artificial cervical vertebrae composite joint is composed of two upper and lower fixing members disposed vertically symmetrically, a cervical vertebrae body member, and two connection members, the cervical vertebrae body member being connected between the fixing members through the connection members. The fixing members each have an L shape and comprise a front wing part and a base part. A locking screw hole is formed in the front wing part, and a skidproof groove provided with an inverted tooth and a protrusion is disposed on a middle portion of the base part. A bone grafting hole is transversely disposed through a middle portion of the cervical vertebrae body member, and two cavities are disposed on both upper and lower sides of the cervical vertebrae body member at an axial center of the cervical vertebrae body member to mount the connection members. The connection member has one end mounted in the cavity by means of a fixing ring, and another end connected with the fixing member to form a stable sliding-trough type ball-and-socket joint.
Abstract translation: 人造颈椎复合关节由垂直对称设置的两个上下固定构件，颈椎体构件和两个连接构件组成，颈椎主体构件通过连接构件连接在固定构件之间。 固定构件各自具有L形并且包括前翼部和基部。 在前翼部形成有锁定螺纹孔，在基部的中部设置有设置有反转齿和突起的防滑槽。 骨移植孔横向设置穿过颈椎体部件的中间部分，并且在颈椎主体部件的轴向中心处，在颈椎体部件的上下两侧设置两个空腔，以安装连接部件 。 连接构件通过固定环一端安装在空腔中，另一端与固定构件连接，形成稳定的滑槽式球窝接头。
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公开(公告)号：US07764021B2
公开(公告)日：2010-07-27
申请号：US11105860
申请日：2005-04-14
Applicant: Da Liu , Sheng Tai Lee , Ching Chuan Kuo
Inventor： Da Liu , Sheng Tai Lee , Ching Chuan Kuo
IPC: H05B37/02
CPC classification number: H05B41/2925
Abstract: A method according to one embodiment may include supplying ignition power and steady state power to at least one lamp. The method of this embodiment may also include receiving, during an ignition period of said lamp, a feedback signal indicative of power supplied to said lamp; comparing said feedback signal to a signal that is approximately equal to a signal indicative of steady state power; and maintaining a supply of ignition power to said lamp while said feedback signal remains below said signal indicative of said steady state power. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.
Abstract translation: 根据一个实施例的方法可以包括向至少一个灯提供点火功率和稳态功率。 该实施例的方法还可以包括在所述灯的点火期间接收指示供应给所述灯的功率的反馈信号; 将所述反馈信号与近似等于指示稳态功率的信号的信号进行比较; 以及当所述反馈信号保持低于指示所述稳态功率的信号时，保持向所述灯供电点火功率。 当然，在不偏离本实施例的情况下，可以进行许多替代，变化和修改。
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49.发明授权Driving circuit for multiple cold cathode fluorescent lamps backlight applications 失效多种冷阴极荧光灯背光应用的驱动电路公开(公告)号：US07550928B2
公开(公告)日：2009-06-23
申请号：US11432784
申请日：2006-05-10
Applicant: Da Liu
Inventor： Da Liu
IPC: H05B37/00
CPC classification number: H05B41/282 , H05B41/2827 , H05B41/2828 , H05B41/3921 , Y02B20/183
Abstract: The present invention provides a driving circuit for driving a light source. The driving circuit includes a serial-arranged transformers system having multiple primary windings and secondary windings; a first switch conducting current though a first path and a second switch conducting current though a second path. The first path is a first set of primary windings connected in series and the second path is a second set of primary windings connected in series and the first set of primary transformer windings and the second set of primary transformer windings form the dual primary windings of the transformers respectively. Based on the conduction of each switch, a DC voltage source supplies power to the primary windings of the transformers, which in turn powers on the light source connected to the secondary windings of the transformers.
Abstract translation: 本发明提供一种用于驱动光源的驱动电路。 驱动电路包括具有多个初级绕组和次级绕组的串联布置的变压器系统; 通过第一路径传导电流的第一开关和通过第二路径传导电流的第二开关。 第一路径是串联连接的第一组初级绕组，第二路径是串联连接的第二组初级绕组，第一组初级变压器绕组和第二组初级变压器绕组形成二次绕组 变压器。 基于每个开关的导通，直流电压源向变压器的初级绕组供电，而这些变压器又连接到变压器次级绕组的光源上。
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公开(公告)号：US20060232222A1
公开(公告)日：2006-10-19
申请号：US11105860
申请日：2005-04-14
IPC: H05B37/02
CPC classification number: H05B41/2925
Abstract: A method according to one embodiment may include supplying ignition power and steady state power to at least one lamp. The method of this embodiment may also include receiving, during an ignition period of said lamp, a feedback signal indicative of power supplied to said lamp; comparing said feedback signal to a signal that is approximately equal to a signal indicative of steady state power; and maintaining a supply of ignition power to said lamp while said feedback signal remains below said signal indicative of said steady state power. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.
Abstract translation: 根据一个实施例的方法可以包括向至少一个灯提供点火功率和稳态功率。 该实施例的方法还可以包括在所述灯的点火期间接收指示供应给所述灯的功率的反馈信号; 将所述反馈信号与近似等于指示稳态功率的信号的信号进行比较; 以及当所述反馈信号保持低于指示所述稳态功率的信号时，保持向所述灯供电点火功率。 当然，在不偏离本实施例的情况下，可以进行许多替代，变化和修改。
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