公开(公告)号：US20170013685A1

公开(公告)日：2017-01-12

申请号：US15200289

申请日：2016-07-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masato HIMEDA ,  Hiroyuki ASANO ,  Masafumi YAMAMOTO

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0845 ,  H05B33/0851 ,  H05B37/0281

Abstract: A lighting device includes: a signal converting circuit which receives a dimming signal that is a rectangular voltage signal, and converts the dimming signal to a DC voltage signal corresponding to a duty ratio of the dimming signal; and a power supply circuit which receives an AC voltage and outputs DC current having a current value corresponding to the DC voltage signal. The signal converting circuit includes a resistor-capacitor (RC) circuit which integrates a signal corresponding to the dimming signal by way of charging and discharging to produce the DC voltage signal, and a time constant of the RC circuit during charging is greater than a time constant of the RC circuit during discharging.

Abstract translation: 照明装置包括：信号转换电路，其接收作为矩形电压信号的调光信号，并将调光信号转换为对应于调光信号的占空比的直流电压信号; 以及电源电路，其接收AC电压并输出具有与所述DC电压信号对应的电流值的DC电流。 信号转换电路包括电阻 - 电容器（RC）电路，其通过充电和放电对与调光信号相对应的信号进行积分以产生直流电压信号，并且充电期间的RC电路的时间常数大于时间 放电期间RC电路的常数。

公开(公告)号：US20170013684A1

公开(公告)日：2017-01-12

申请号：US15194750

申请日：2016-06-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroyuki ASANO ,  Masato HIMEDA ,  Masafumi YAMAMOTO

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0815 ,  Y02B20/346

Abstract: The lighting device includes a converter circuit including a switching device, a first inductor, and a second inductor. The first inductor and the second inductor have winding directions such that a magnetic field of the first inductor and a magnetic field of the second inductor have a canceling effect on each other. The switching device is mounted on the substrate so as to be present between the first inductor and the second inductor.

Abstract translation: 照明装置包括包括开关装置，第一电感器和第二电感器的转换器电路。 第一电感器和第二电感器具有卷绕方向，使得第一电感器的磁场和第二电感器的磁场彼此具有抵消效应。 开关装置安装在基板上，以便存在于第一电感器和第二电感器之间。

公开(公告)号：US20160150611A1

公开(公告)日：2016-05-26

申请号：US14944267

申请日：2015-11-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masato HIMEDA ,  Hiroyuki ASANO ,  Masafumi YAMAMOTO ,  Takeshi KAMOI ,  Daisuke YAMAHARA ,  Keisuke SEKI ,  Katsuyuki DOI

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0812 ,  Y02B20/343 ,  Y02B20/345

Abstract: A lighting device includes a rectifier circuit, a conversion circuit, a constant current circuit and a control circuit. The conversion circuit includes a first series circuit, a second series circuit and a third series circuit. The conversion circuit is configured to output a DC current by on/off of a switching element being controlled by the control circuit. A high potential-side terminal of the third capacitor is electrically connected to an output terminal. The low potential-side terminal of the third capacitor is electrically connected to an output terminal, via the constant current circuit.

Abstract translation: 照明装置包括整流电路，转换电路，恒流电路和控制电路。 该转换电路包括第一串联电路，第二串联电路和第三串联电路。 转换电路被配置为通过由控制电路控制的开关元件的导通/截止来输出DC电流。 第三电容器的高电位侧端子与输出端子电连接。 第三电容器的低电位侧端子经由恒流电路与输出端子电连接。

公开(公告)号：US20180235058A1

公开(公告)日：2018-08-16

申请号：US15878116

申请日：2018-01-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Daisuke YAMAHARA ,  Hiroyuki ASANO ,  Satoshi YAGI ,  Koki MATSUI

IPC: H05B37/02

CPC classification number: H05B37/0272 ,  H05B37/0281

Abstract: A lighting device includes: a first lighting control circuit; a second lighting control circuit which controls the first lighting control circuit; a first control power supply which supplies a first voltage to the first lighting control circuit; a second control power supply to which the first voltage is supplied and which supplies a second voltage to the second lighting control circuit; and a reset circuit which (i) when the reset circuit detects that the first voltage decreases to a first threshold or lower, causes the second control power supply to stop supply of the second voltage, and (ii) when the reset circuit detects that the first voltage increases to a second threshold or higher and that the second voltage is higher than a third threshold, causes the second control power supply to start supply of the second voltage after the second voltage decreases to the third threshold or lower.

公开(公告)号：US20160150609A1

公开(公告)日：2016-05-26

申请号：US14944272

申请日：2015-11-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keisuke SEKI ,  Takeshi KAMOI ,  Daisuke YAMAHARA ,  Hiroyuki ASANO ,  Masafumi YAMAMOTO ,  Masato HIMEDA ,  Katsuyuki DOI

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0812 ,  H05B33/0842 ,  Y02B20/343 ,  Y02B20/346

Abstract: A lighting device includes a rectifier circuit, a conversion circuit and a control circuit. A first inductor of a first series circuit and a second inductor of a second series circuit have inductances by which a time period, during which a diode is electrically conducted, is made shorter than a half period of a resonance period of a closed loop circuit. The closed loop circuit includes a first capacitor, the first inductor, a second capacitor and a third capacitor. The control circuit is configured to control a switching element in such a manner that the switching element is turned on at fixed periods.

Abstract translation: 照明装置包括整流电路，转换电路和控制电路。 第一串联电路的第一电感器和第二串联电路的第二电感器具有电感，通过该电感使二极管导通的时间周期短于闭环回路的谐振周期的半周期。 闭环电路包括第一电容器，第一电感器，第二电容器和第三电容器。 控制电路被配置为以这样的方式控制开关元件，使得开关元件以固定的周期接通。