公开(公告)号：US20160286617A1

公开(公告)日：2016-09-29

申请号：US14442647

申请日：2013-11-13

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Akira TAKAHASHI ,  Kazuhiko ITOH

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  H05B33/0818 ,  Y02B20/383

Abstract: A drive circuit (1) according to the present invention is a drive circuit which causes an LED module (4) to emit light, using a dimming signal which is an alternating current signal which has been phase-controlled in response to a dimming level, the drive circuit (1) including a control signal generating unit (8) which integrates a voltage of a rectified dimming signal to generate a control signal for controlling the luminance of the LED module (4), the voltage being greater than or equal to a first voltage and less than or equal to a second voltage less than a maximum voltage of the dimming signal.

Abstract translation: 根据本发明的驱动电路（1）是使用调光信号使LED模块（4）发光的驱动电路，所述调光信号是响应于调光级相位控制的交流信号， 所述驱动电路（1）包括控制信号生成单元（8），所述控制信号生成单元（8）对整流的调光信号的电压进行积分，以产生用于控制所述LED模块（4）的亮度的控制信号，所述电压大于或等于 第一电压并小于或等于小于调光信号的最大电压的第二电压。

公开(公告)号：US20150366014A1

公开(公告)日：2015-12-17

申请号：US14762629

申请日：2014-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiko ITOH ,  Akira TAKAHASHI ,  Masanobu MURAKAMI

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H02M1/081 ,  H02M1/4225 ,  H02M3/1582 ,  H02M2001/007 ,  H05B33/0845 ,  H05B33/0848 ,  Y02B20/346 ,  Y02B70/126

Abstract: A driving circuit includes a rectifying and smoothing circuit that rectifies an AC dimming signal, and a voltage conversion circuit (1A) including: a switching element having a source connected to a low-potential output terminal of the rectifying and smoothing circuit; a diode having an anode connected to a high-potential output terminal of the rectifying and smoothing circuit; an inductor disposed between the diode and a drain of the switching element; an oscillation controller; a capacitor that is charged by receiving magnetic energy from the inductor when the switching element is OFF, and discharges to a load when the switching element is ON; and a power control circuit that applies a voltage corresponding to a voltage at a high-potential terminal of the capacitor to the oscillation controller as a supply voltage for driving the oscillation controller.

Abstract translation: 驱动电路包括对交流调光信号进行整流的整流和平滑电路;以及电压转换电路（1A），包括：开关元件，源极连接到整流和平滑电路的低电位输出端; 二极管，其阳极连接到整流和平滑电路的高电位输出端; 设置在所述二极管和所述开关元件的漏极之间的电感器; 振荡控制器; 电容器，当开关元件断开时，通过从电感器接收磁能来进行充电，并且当开关元件接通时将其放电到负载; 以及功率控制电路，其将与电容器的高电位端子处的电压相对应的电压施加到振荡控制器，作为用于驱动振荡控制器的电源电压。