Title:
灯具およびその電源制御回路
Document Type and Number:
Japanese Patent JP5285744
Kind Code:
B2
Abstract:
A light device comprising a light emitting unit (2), a voltage control unit (3), and a current control unit (4) is provided. The light emitting unit (2) is capable of receiving DC power. The voltage control unit (3) has a power input terminal (31), a power output terminal (32), and a voltage setting member (35), with the power input terminal (31) connecting with the light emitting unit (2), the voltage setting member (35) having a threshold value to control the voltage of the power output terminal in a value equal to or lower than the threshold value. The current control unit (4) has a voltage regulating member (41) and a current adjusting member (42), with the voltage regulating member (41) connecting with the power output terminal (32) of the voltage control unit (3) and generating a stable DC voltage, and with the current adjusting member (42) connected between the voltage regulating member (41) and a ground point to stabilize a current passing through the current adjusting member (42).
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Inventors:
Chung Sone
Hirohiro Guo
Ke Tachiyuu
Hirohiro Guo
Ke Tachiyuu
Application Number:
JP2011125182A
Publication Date:
September 11, 2013
Filing Date:
June 03, 2011
Export Citation:
Assignee:
Sunonwealth Electric Machine Industry Co.,Ltd.
International Classes:
H05B37/02; H05B44/00
Domestic Patent References:
| JP2006040669A | ||||
| JP2004227951A | ||||
| JP2009104792A | ||||
| JP2004122912A |
Foreign References:
| WO2008050779A1 |
Attorney, Agent or Firm:
Sumiko Shimosaka
Kazuo Ikeyama
Toshihiko Nakayama
Yusuke Uchikoshi
Kazuo Ikeyama
Toshihiko Nakayama
Yusuke Uchikoshi
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