Title:
照明ユニット及び駆動方法
Document Type and Number:
Japanese Patent JP6883153
Kind Code:
B2
Abstract:
A lighting unit which includes a driver, a light source and a buffer capacitor of an auxiliary circuit (such as an independent active electronic circuit). The charging current allowed to flow to the buffer capacitor is controlled based on sensed currents flowing to the light source thereby to control the charging current of the buffer capacitor. In this way, large inrush currents caused by the use of a large buffer capacitor at the output of the driver can be avoided and the triggering of a fault detection mode within the driver can be prevented. Furthermore this circuit ensures that the driver is operated within the specification limits during start-up.
Inventors:
Arlandu Carne Kumar
Sevo Alexandres
Van Meurus Johannes Maria
Ferbaquel Cornelis Antonius
Sevo Alexandres
Van Meurus Johannes Maria
Ferbaquel Cornelis Antonius
Application Number:
JP2020552881A
Publication Date:
June 09, 2021
Filing Date:
March 25, 2019
Export Citation:
Assignee:
SIGNIFY HOLDING B.V.
International Classes:
H05B44/00; H05B47/25; H05B45/14; H05B45/375; H05B45/385; H05B45/397; H05B45/50
Domestic Patent References:
| JP2010532092A | ||||
| JP2013127881A |
Foreign References:
| US20140368204 |
Attorney, Agent or Firm:
Sakiko Shibata