公开(公告)号：US20090224682A1

公开(公告)日：2009-09-10

申请号：US12398279

申请日：2009-03-05

申请人： Takao Muramatsu ,  Tomoyuki Ichikawa ,  Shinji Ohta

发明人： Takao Muramatsu ,  Tomoyuki Ichikawa ,  Shinji Ohta

IPC分类号： H05B41/36

CPC分类号： H05B41/2881 ,  H05B41/042

摘要： A discharge lamp lighting circuit for supplying an AC power to a discharge lamp includes first and second converters for receiving a DC voltage and stepping up the voltage. A controlling circuit drives the first and second converters CON1, CON2 alternately at a first frequency and stops an operation of a side that is not driven such that the AC power is supplied to the discharge lamp to execute a lighting operation.

摘要翻译： 用于向放电灯提供AC电力的放电灯点亮电路包括用于接收DC电压并提高电压的第一和第二转换器。 控制电路以第一频率交替驱动第一和第二转换器CON1，CON2，并且停止未被驱动的一侧的操作，使得向放电灯提供AC电力以执行点亮操作。

公开(公告)号：US08120264B2

公开(公告)日：2012-02-21

申请号：US12398279

申请日：2009-03-05

申请人： Takao Muramatsu ,  Tomoyuki Ichikawa ,  Shinji Ohta

发明人： Takao Muramatsu ,  Tomoyuki Ichikawa ,  Shinji Ohta

IPC分类号： H05B37/00

CPC分类号： H05B41/2881 ,  H05B41/042

摘要： A discharge lamp lighting circuit for supplying an AC power to a discharge lamp includes first and second converters for receiving a DC voltage and stepping up the voltage. A controlling circuit drives the first and second converters CON1, CON2 alternately at a first frequency and stops an operation of a side that is not driven such that the AC power is supplied to the discharge lamp to execute a lighting operation.

摘要翻译： 用于向放电灯提供AC电力的放电灯点亮电路包括用于接收DC电压并提高电压的第一和第二转换器。 控制电路以第一频率交替驱动第一和第二转换器CON1，CON2，并且停止未被驱动的一侧的操作，使得向放电灯提供AC电力以执行点亮操作。

公开(公告)号：US20080061707A1

公开(公告)日：2008-03-13

申请号：US11852460

申请日：2007-09-10

申请人： Takao Muramatsu ,  Tomoyuki Ichikawa

发明人： Takao Muramatsu ,  Tomoyuki Ichikawa

IPC分类号： H05B41/24

CPC分类号： H05B41/2883 ,  Y02B20/204

摘要： A discharge lamp lighting circuit includes a power supplying portion having a series resonant circuit including transistors and a bridge driver, a starting portion for applying a high voltage pulse to a discharge lamp to promote a lighting operation, a lighting confirming portion for generating a lighting confirmation signal Sf indicating that a lighting operation for the discharge lamp fails or is successful by the high voltage pulse, and a control portion for generating a control signal Sc to control a driving frequency of the bridge driver. The lighting confirming portion generates a lighting confirmation signal Sf based on a relationship of the magnitude between a lamp voltage equivalent signal VS and a predetermined voltage V4 at a time that a predetermined time Δt passes since the application of the high voltage pulse to the discharge lamp.

摘要翻译： 放电灯点亮电路包括具有串联谐振电路的供电部分，该串联谐振电路包括晶体管和桥接驱动器，用于向放电灯施加高电压脉冲以促进点亮操作的起始部分，用于产生照明确认的照明确认部分 信号Sf，其指示放电灯的点亮操作由高压脉冲失效或成功;以及控制部分，用于产生控制信号Sc以控制桥式驾驶员的驾驶频率。 照明确认部分基于在施加之后经过预定时间Deltat时的灯电压等效信号VS和预定电压V 4之间的大小之间的关系产生点亮确认信号Sf 放电灯的高电压脉冲。

公开(公告)号：US07291990B2

公开(公告)日：2007-11-06

申请号：US11484804

申请日：2006-07-10

申请人： Tomoyuki Ichikawa ,  Takao Muramatsu

发明人： Tomoyuki Ichikawa ,  Takao Muramatsu

IPC分类号： H05B41/36

CPC分类号： H05B41/2883

摘要： A discharge lamp lighting circuit 1 is provided with a DC-AC conversion circuit 3 having a plurality of switching elements 5H, 5L and a series resonance circuit (8, 9, 7p), and control means 17 for preventing a situation in which the drive frequency of the switching element remains less than its specified minimum frequency. When the discharge lamp is lit, driving control of the switching element is carried out in a frequency range higher than the series resonance frequency. By using a driving situation detection circuit 15, a driving situation of the switching element is monitored based on a relation with a phase of a lamp current which flows through the discharge lamp. If the drive frequency of the switching element becomes less than the specified minimum frequency, the drive frequency is increased, and thereby, a lower limit of the drive frequency is automatically restricted.

摘要翻译： 放电灯点亮电路1设置有具有多个开关元件5H，5L和串联谐振电路（8,9,7p）的DC-AC转换电路3，以及控制装置17，用于防止 开关元件的驱动频率保持小于其规定的最小频率。 当放电灯点亮时，开关元件的驱动控制在高于串联谐振频率的频率范围内进行。 通过使用驱动情况检测电路15，基于与流过放电灯的灯电流的相位的关系来监视开关元件的驱动情况。 如果开关元件的驱动频率变得小于指定的最小频率，则驱动频率增加，从而自动地限制驱动频率的下限。

公开(公告)号：US07564200B2

公开(公告)日：2009-07-21

申请号：US11961481

申请日：2007-12-20

申请人： Tomoyuki Ichikawa ,  Takao Muramatsu

发明人： Tomoyuki Ichikawa ,  Takao Muramatsu

IPC分类号： G05F1/00

CPC分类号： H05B41/2882 ,  H05B41/2925

摘要： A discharge lamp lighting circuit is provided. The discharge lamp lighting circuit includes a power supplying portion which comprises an inverter circuit comprising a switching element; a series resonant circuit comprising a capacitor, and at least one of an inductor and a transformer; and a driving circuit which drives said switching element, said power supplying portion converting DC power to AC power and supplying the AC power to a discharge lamp; and a controlling portion which produces a frequency control signal for controlling a frequency of a drive signal output from said driving circuit, the controlling portion including a phase difference detecting portion which detects a phase difference between an input voltage and an input current that are supplied from said inverter circuit to said series resonant circuit; and a control signal producing portion which produces the frequency control signal in accordance with the phase difference.

摘要翻译： 提供放电灯点亮电路。 放电灯点亮电路包括：电源部，其包括具有开关元件的逆变器电路; 包括电容器和电感器和变压器中的至少一个的串联谐振电路; 驱动所述开关元件的驱动电路，所述供电部将直流电力转换为交流电力，将交流电力提供给放电灯; 以及控制部，其产生用于控制从所述驱动电路输出的驱动信号的频率的频率控制信号，所述控制部包括相位差检测部，所述相位差检测部检测从所述驱动电路输入的输入电压和输入电流之间的相位差， 所述逆变器电路对所述串联谐振电路; 以及根据相位差产生频率控制信号的控制信号产生部分。

公开(公告)号：US20080048575A1

公开(公告)日：2008-02-28

申请号：US11840311

申请日：2007-08-17

申请人： Takao Muramatsu ,  Tomoyuki Ichikawa

发明人： Takao Muramatsu ,  Tomoyuki Ichikawa

IPC分类号： H05B41/04

CPC分类号： H05B41/2882

摘要： A discharge lamp lighting circuit includes a power supplying portion having a series resonant circuit containing transistors and a bridge driver, and a control portion for generating a control signal Sc1 to control a driving frequency of the bridge driver. The control portion has a sample hold portion for generating a constant control signal S1, a frequency follow-up control portion for generating a control signal S2 in such a manner that a phase difference between a voltage and a current in the series resonant circuit is approximately zero, and a power control portion for generating a control signal S3 in such a manner that a magnitude of an AC power approximates a steady value. The control signal S1 is selected from a time t3 to a time t4, the control signal S2 is selected from the time t4 to a time t5, and the control signal S3 sent from the power control portion 13 is selected as the control signal Sc1 after the time t5.

摘要翻译： 放电灯点亮电路包括具有包含晶体管和桥式驱动器的串联谐振电路的供电部分和用于产生用于控制桥式驱动器的驱动频率的控制信号Sc1“的控制部分。 控制部分具有用于产生恒定控制信号S 1的采样保持部分，用于产生控制信号S 2的频率跟随控制部分，使得串联谐振电路中的电压和电流之间的相位差 大约为零，以及功率控制部分，用于以使AC功率的大小接近稳定值的方式产生控制信号S 3。 控制信号S 1从时间t 3到时间t 4选择，控制信号S 2从时间t 4 到时间t 5 5，并且从时间t 5之后选择从功率控制部分13发送的控制信号S 3作为控制信号Sc1> 1 < 。

公开(公告)号：US20060255747A1

公开(公告)日：2006-11-16

申请号：US11435432

申请日：2006-05-16

申请人： Tomoyuki Ichikawa ,  Takao Muramatsu

发明人： Tomoyuki Ichikawa ,  Takao Muramatsu

IPC分类号： H05B39/04

CPC分类号： H05B41/042

摘要： A A lighting apparatus for a discharge lamp includes a transformer for electric power transmission to the discharge lamp and for supplying a start signal to the discharge lamp. The transformer includes closed magnetic circuit type cores (15, 16) formed of magnetic material, a primary winding 7p, a secondary winding 7s, and an auxiliary winding 7v provided for supplying a voltage necessary for generating the start signal to the start circuit. The primary winding 7p and the secondary winding 7s are wound around the periphery of a common core pole 15a, and the auxiliary winding 7v is wound around another core pole 15b. The start signal is generated based on a voltage supplied from the auxiliary winding 7v and applied to the discharge lamp via the main windings (7p, 7s).

摘要翻译： A一种用于放电灯的照明装置包括用于向放电灯的电力传输并用于向放电灯提供启动信号的变压器。 变压器包括由磁性材料形成的封闭的磁路型磁芯（15,16），初级绕组7p，次级绕组7s和辅助绕组7v，用于将起始信号产生所需的电压开始 电路。 初级绕组7p和次级绕组7s缠绕在公共芯极15a的周围，辅助绕组7v缠绕在另一个芯极15b上。 基于从辅助绕组7 v提供的电压并经由主绕组（7p，7s）施加到放电灯来产生启动信号。

公开(公告)号：US07564199B2

公开(公告)日：2009-07-21

申请号：US11852460

申请日：2007-09-10

申请人： Takao Muramatsu ,  Tomoyuki Ichikawa

发明人： Takao Muramatsu ,  Tomoyuki Ichikawa

IPC分类号： G05F1/00

CPC分类号： H05B41/2883 ,  Y02B20/204

摘要： A discharge lamp lighting circuit includes a power supplying portion having a series resonant circuit including transistors and a bridge driver, a starting portion for applying a high voltage pulse to a discharge lamp to promote a lighting operation, a lighting confirming portion for generating a lighting confirmation signal Sf indicating that a lighting operation for the discharge lamp fails or is successful by the high voltage pulse, and a control portion for generating a control signal Sc to control a driving frequency of the bridge driver. The lighting confirming portion generates a lighting confirmation signal Sf based on a relationship of the magnitude between a lamp voltage equivalent signal VS and a predetermined voltage V4 at a time that a predetermined time Δt passes since the application of the high voltage pulse to the discharge lamp.

摘要翻译： 放电灯点亮电路包括具有串联谐振电路的供电部分，该串联谐振电路包括晶体管和桥接驱动器，用于向放电灯施加高电压脉冲以促进点亮操作的起始部分，用于产生照明确认的照明确认部分 信号Sf，其指示放电灯的点亮操作由高压脉冲失效或成功;以及控制部分，用于产生控制信号Sc以控制桥式驾驶员的驾驶频率。 照明确认部分基于从施加高电压脉冲到放电灯之后经过预定时间的时间的灯电压等效信号VS和预定电压V4之间的大小的关系，产生点亮确认信号Sf 。

公开(公告)号：US20060273736A1

公开(公告)日：2006-12-07

申请号：US11446887

申请日：2006-06-05

申请人： Tomoyuki Ichikawa ,  Takao Muramatsu

发明人： Tomoyuki Ichikawa ,  Takao Muramatsu

IPC分类号： H05B37/00

CPC分类号： H05B41/2881

摘要： A circuit includes a transformer 7 for transmitting power to a discharge lamp 10 and for supplying a starting signal to the discharge lamp. The circuit includes a direct current-alternating current converting circuit 3 for supplying an output of the transformer 7 to the discharge lamp 10 after carrying out a direct current-alternating current conversion, and a starting circuit 4 for applying the starting signal to the discharge lamp 10. A primary side of the transformer 7 has a first capacitor 11, a circuit portion 13 including a rectifying element, and a switching element 14. The transformer 7 has an auxiliary winding 7v for supplying a voltage for generating the starting signal to the starting circuit. A second capacitor 12 is interposed between the auxiliary winding and the circuit portion 13 and prevents absorption of energy by the capacitor 11 in generating the starting signal and prevents attenuation of the starting signal

摘要翻译： 电路包括用于向放电灯10发送电力并向放电灯提供启动信号的变压器7。 该电路包括直流电流转换电路3，用于在进行直流电流转换之后将变压器7的输出端提供给放电灯10;以及启动电路4，用于将启动信号施加到放电灯 变压器7的初级侧具有第一电容器11，包括整流元件的电路部分13和开关元件14。 变压器7具有用于向起动电路提供用于产生起动信号的电压的辅助绕组7v。 第二电容器12介于辅助绕组和电路部分13之间，并且在产生启动信号时防止电容器11吸收能量，并防止启动信号的衰减

公开(公告)号：US07777429B2

公开(公告)日：2010-08-17

申请号：US11962199

申请日：2007-12-21

申请人： Tomoyuki Ichikawa ,  Takao Muramatsu

发明人： Tomoyuki Ichikawa ,  Takao Muramatsu

IPC分类号： G05F1/00

CPC分类号： H05B41/2887 ,  Y02B20/202

摘要： A discharge lamp lighting circuit is provided. The discharge lamp lighting circuit includes an inverter circuit which has two output ends; a series resonant circuit which includes a capacitor, an inductor and a transformer, coupled in series; a driving portion; and a controlling portion which provides a control signal for controlling said inverter circuit, said controlling portion including a first signal producing portion which produces a first signal indicative of a phase of a current flowing through said series resonant circuit; and a second signal producing portion which produces a second signal indicative of a phase of the AC voltage output from said inverter circuit, said controlling portion producing the control signal on the basis of a phase difference between the first and second signals, wherein one component of said series resonant circuit is coupled between one of said output ends, and a detection point.

摘要翻译： 提供放电灯点亮电路。 放电灯点亮电路包括具有两个输出端的逆变器电路; 包括串联耦合的电容器，电感器和变压器的串联谐振电路; 驱动部分; 以及控制部分，其提供用于控制所述逆变器电路的控制信号，所述控制部分包括产生指示流过所述串联谐振电路的电流的相位的第一信号的第一信号产生部分; 以及第二信号产生部分，其产生指示从所述逆变器电路输出的AC电压的相位的第二信号，所述控制部分基于第一和第二信号之间的相位差产生控制信号，其中， 所述串联谐振电路耦合在所述输出端之一和检测点之间。