Invention Grant
- Patent Title: Lighting device, luminaire, and signboard
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Application No.: US15984368Application Date: 2018-05-20
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Publication No.: US10439719B2Publication Date: 2019-10-08
- Inventor: Keisuke Seki , Shigeru Ido , Kazuhiko Hayashi
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2017-103934 20170525
- Main IPC: H04B10/116
- IPC: H04B10/116 ; H05B33/08 ; H05B37/02 ; H02M3/335 ; H02M1/42 ; H02M3/156 ; H02M1/14 ; H04B10/50 ; H02M1/00
Abstract:
A lighting device includes: a constant current supply circuit; and a first modulation circuit and a second modulation circuit that are connected in series between output terminals of the constant current supply circuit. The first modulation circuit includes a first capacitor that is connected in parallel to the first modulation circuit. The second modulation circuit includes a second capacitor that is connected in parallel to the second modulation circuit.
Public/Granted literature
- US20180343057A1 LIGHTING DEVICE, LUMINAIRE, AND SIGNBOARD Public/Granted day:2018-11-29
Information query
