发明名称 |
Light emitting element driving device |
摘要 |
A light emitting element driving device of the present invention comprises at least one light emitting element and a power supply device for generating a driving current of the light emitting element. The power supply device has a step-up type DC-DC converter circuit. The step-up type DC-DC converter circuit has a soft-start function for gradually increasing the driving current at a rise of the driving current in generation of the driving current. Thus can be provided a light emitting element driving device which is capable of suppressing an inrush current to be generated at turn-on of the main power supply of the power supply device.
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申请公布号 |
US7646989(B2) |
申请公布日期 |
2010.01.12 |
申请号 |
US20050213862 |
申请日期 |
2005.08.30 |
申请人 |
NEC DISPLAY SOLUTIONS, LTD. |
发明人 |
KATO HIROSHI |
分类号 |
H04B10/04;H01L33/00 |
主分类号 |
H04B10/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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