Title:
照明制御回路、照明設備及び方法
Document Type and Number:
Japanese Patent JP7333322
Kind Code:
B2
Abstract:
The present invention discloses a lighting installation having an LED lamp (19), normally consisting of a series string of individual LED's (18), which is supplied by a rectifier (20, 200). A control circuit (23, 23 & C1) is interposed between the rectifier and the AC supply which powers the rectifier. Various circuits for filtering, power factor control, multi-phase operation and dimming, for example by phase switching, are disclosed. In particular, the control carried out by the control circuit takes place on the AC side of the rectifier. Also disclosed are the control circuit per se and a method of converting a High Intensity Discharge (HID) lamp installation into a Light Emitting Diode (LED) installation. The control circuit can take the form of an inductor, an inductor and series capacitor, a shunt inductor, a leakage reactance transformer, a constant current transformer, an autotransformer, an isolation transformer or a ferro-resonant transformer.
Inventors:
Majewski Donat
majewski shane
majewski shane
Application Number:
JP2020533328A
Publication Date:
August 24, 2023
Filing Date:
August 28, 2018
Export Citation:
Assignee:
Trestto Proprietary Limited
International Classes:
H05B45/345; H05B45/355; H05B45/357; H05B45/36
Domestic Patent References:
| JP2017084566A | ||||
| JP11307278A | ||||
| JP2016081684A | ||||
| JP4169342A |
Foreign References:
| US20050030192 |
Attorney, Agent or Firm:
Shinichiro Tanaka
▲吉▼田 和彦
Hiroyuki Suda
Fumiaki Otsuka
Takayoshi Nishijima
Hiroshi Uesugi
Naoki Kondo
Takeo Nasu
▲吉▼田 和彦
Hiroyuki Suda
Fumiaki Otsuka
Takayoshi Nishijima
Hiroshi Uesugi
Naoki Kondo
Takeo Nasu
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