发明名称 |
LED bulb, light emitting device control method, and light emitting device controller circuit with dimming function adjustable by AC signal |
摘要 |
The present invention discloses a light emitting device control method for adjusting the brightness of the light emitting device by an AC signal, comprising: receiving a signal having a turn ON angle and converting the signal to a DC signal; obtaining an average of the DC signal level, the average being a function of the turn ON angle; determining a reference voltage of a current source circuit according to the average of the DC signal level; and controlling a current flow through the light emitting device by the current source circuit.
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申请公布号 |
US8513894(B2) |
申请公布日期 |
2013.08.20 |
申请号 |
US20090584149 |
申请日期 |
2009.09.01 |
申请人 |
HUANG PEI-CHENG;TSENG CHING-JUNG;LIU JING-MENG;RICHTEK TECHNOLOGY CORPORATION, R.O.C. |
发明人 |
HUANG PEI-CHENG;TSENG CHING-JUNG;LIU JING-MENG |
分类号 |
H05B37/02 |
主分类号 |
H05B37/02 |
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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