公开(公告)号：EP2034599A2

公开(公告)日：2009-03-11

申请号：EP08015706.8

申请日：2008-09-05

申请人： MINEBEA Co., Ltd.

发明人： Masuda, Shigemi

IPC分类号： H02M5/293

CPC分类号： H02M5/293 ,  H05B41/2851 ,  H05B41/3927 ,  Y10T307/469

摘要： A load driving apparatus includes a transformer, a transformer driving circuit for supplying an alternate current signal to a primary side of the transformer, a load connected at a secondary side of the transformer, a dummy load connected at the secondary side of the transformer, a first switching device for switching whether to supply a secondary side signal of the transformer to the load, a second switching device for switching whether to supply the secondary side signal to the dummy load, and a switching control portion for controlling the first and second switching devices such that the supply of the secondary side signal to the dummy load is stopped when the secondary side signal is supplied to the load, and that the supply of the secondary side signal to the load is stopped when the secondary side signal is supplied to the dummy load.

摘要翻译： 负载驱动装置包括变压器，用于向变压器的初级侧提供交流信号的变压器驱动电路，连接在变压器的次级侧的负载，连接在变压器次级侧的虚拟负载， 用于切换是否将变压器的次级侧信号提供给负载的第一开关装置，用于切换是否将二次侧信号提供给虚拟负载的第二开关装置，以及用于控制第一和第二开关装置的开关控制部分 使得当次级侧信号被提供给负载时，将二次侧信号提供给虚拟负载被停止，并且当次级侧信号被提供给虚拟机时，向负载提供次级侧信号被停止 加载。

公开(公告)号：EP1995997A3

公开(公告)日：2011-08-24

申请号：EP08007494.1

申请日：2008-04-17

申请人： MINEBEA Co., Ltd.

发明人： Masuda, Shigemi

IPC分类号： H05B41/392

CPC分类号： H05B41/2828 ,  H05B41/3927

摘要： A discharge lamp lighting apparatus 10 includes: an inverter circuit 12; a lamp current detecting portion 13; and a burst mode control circuit 14 which includes a noise reduction circuit 15 including an error amplification circuit 16 to receive a feedback signal 22b from the lamp current detecting portion 13; and a frequency response reduction circuit 17 connected to the error amplification circuit 16, wherein the frequency response reduction circuit J.7 receives a dimming pulse signal Vs for the burst mode dimming control, and the response characteristic of the noise reduction circuit 15 is lowered while the dimming pulse signal Vs is outputted, whereby the lamp current waveform is suppressed from making a sharp change at the time of burst dimming control.

摘要翻译： 放电灯点亮装置10包括：逆变器电路12; 灯电流检测部分13; 以及突发模式控制电路14，其包括：噪声降低电路15，其包括误差放大电路16，以从灯电流检测部分13接收反馈信号22b; 和连接到误差放大电路16的频率响应降低电路17，其中频率响应降低电路J.7接收用于突发模式调光控制的调光脉冲信号Vs，并且噪声降低电路15的响应特性降低 输出调光脉冲信号Vs，由此抑制突发调光控制时的灯电流波形急剧变化。

公开(公告)号：EP1995997A2

公开(公告)日：2008-11-26

申请号：EP08007494.1

申请日：2008-04-17

申请人： MINEBEA Co., Ltd.

发明人： Masuda, Shigemi

IPC分类号： H05B41/392

CPC分类号： H05B41/2828 ,  H05B41/3927

摘要： A discharge lamp lighting apparatus 10 includes: an inverter circuit 12; a lamp current detecting portion 13; and a burst mode control circuit 14 which includes a noise reduction circuit 15 including an error amplification circuit 16 to receive a feedback signal 22b from the lamp current detecting portion 13; and a frequency response reduction circuit 17 connected to the error amplification circuit 16, wherein the frequency response reduction circuit J.7 receives a dimming pulse signal Vs for the burst mode dimming control, and the response characteristic of the noise reduction circuit 15 is lowered while the dimming pulse signal Vs is outputted, whereby the lamp current waveform is suppressed from making a sharp change at the time of burst dimming control.

摘要翻译： 放电灯点亮装置10包括：逆变器电路12; 灯电流检测部13; 以及包括噪声降低电路15的突发模式控制电路14，其包括误差放大电路16，以接收来自灯电流检测部分13的反馈信号22b; 以及连接到误差放大电路16的频率响应减少电路17，其中频率响应减小电路J.7接收用于突发模式调光控制的调光脉冲信号Vs，并且降低噪声电路15的响应特性降低，同时 输出调光脉冲信号Vs，从而抑制灯电流波形在突发调光控制时的急剧变化。