公开(公告)号：US09369053B2

公开(公告)日：2016-06-14

申请号：US14627069

申请日：2015-02-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kiyoshi Ogasawara ,  Takafumi Fujino ,  Hiromichi Goto ,  Teruhito Takeda ,  Satohiko Hosomi ,  Kei Mitsuyasu ,  Katsuyuki Doi ,  Hideaki Abe

IPC: H02M3/335 ,  H02M1/42 ,  H02M1/00 ,  H05B33/08 ,  H02M7/06

CPC classification number: H02M3/33569 ,  H02M1/4266 ,  H02M7/06 ,  H02M2001/0006 ,  H02M2001/0058 ,  H02M2001/007 ,  H05B33/0815 ,  Y02B20/346 ,  Y02B70/123 ,  Y02B70/1491

Abstract: In a power supply device, a primary winding of a transformer is connected in series to a main switching element, and is connected in parallel to a series circuit of a resonance capacitor and a sub switching element. A secondary winding of the transformer is connected in series to a series circuit of a rectifying element and a resonance inductor. The capacitance of the resonance capacitor and the inductance of the resonance inductor are each set such that, when the sub switching element is in an on state, the waveform of the voltage that is generated between the first main terminal and the second main terminal of the main switching element takes a protruding curve shape, the voltage being generated due to a resonance phenomenon of at least the resonance capacitor and the resonance inductor.

Abstract translation: 在电源装置中，变压器的初级绕组与主开关元件串联连接，并联连接到谐振电容器和副开关元件的串联电路。 变压器的次级绕组串联连接到整流元件和谐振电感器的串联电路。 共振电容器的电容和谐振电感的电感各自被设定为使得当副开关元件处于导通状态时，在第一主端子和第二主端子之间产生的电压的波形 主开关元件呈现突出的曲线形状，由于至少谐振电容器和谐振电感器的谐振现象而产生电压。

公开(公告)号：US09699851B2

公开(公告)日：2017-07-04

申请号：US15171444

申请日：2016-06-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Satoshi Yagi ,  Kei Mitsuyasu ,  Shinichiro Goto ,  Tomohiro Sugiura ,  Katsuyoshi Nakada

IPC: H05B33/08 ,  H05B41/392

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  H05B41/3924

Abstract: A dimming lighting circuit includes: a rectifier circuit; a phase detection circuit which outputs a dimming signal having a signal level corresponding to a conduction phase angle of an AC voltage; and a DC-DC converter which receives a DC voltage output from the rectifier circuit and supplies a light source with a DC current corresponding to the signal level of the dimming signal output from the phase detection circuit. If the conduction phase angle detected when the dimming lighting circuit receives the AC voltage at power-on is less than or equal to a predetermined angle, the phase detection circuit outputs, as the dimming signal, a substitute signal having a signal level corresponding to a conduction phase angle greater than the conduction phase angle of the AC voltage, for a predetermined time period.