发明名称 |
Switching power supply with power feedback to keep lamp's brightness constant |
摘要 |
A power supply and methods are provided. In one implementation, the power supply includes a switching converter with power feedback circuit to output constant power to keep lamp at constant brightness. The power feedback circuits include a current feedback circuit and a voltage feedback circuit. The power supply further includes a controller operable to adjust on time or duty cycle of main switch to keep the output power constant. |
申请公布号 |
US8659238(B2) |
申请公布日期 |
2014.02.25 |
申请号 |
US201113066626 |
申请日期 |
2011.04.20 |
申请人 |
CHEN LIANG;XI' AN UPRIGHT PHOTOELECTRIC TECHNOLOGY CO., LTD;UPRIGHT LIGHTING LLC |
发明人 |
CHEN LIANG |
分类号 |
H05B41/282;H02M3/335;H02M7/757 |
主分类号 |
H05B41/282 |
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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