| Citation: |
Liu Lianxi, Zhu Zhangming, Yang Yintang. Design of an LED driver based on hysteretic-current-control mode in a 0.6 μm BCD process[J]. Journal of Semiconductors, 2012, 33(4): 045005. doi: 10.1088/1674-4926/33/4/045005
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Liu L X, Zhu Z M, Yang Y T. Design of an LED driver based on hysteretic-current-control mode in a 0.6 μm BCD process[J]. J. Semicond., 2012, 33(4): 045005. doi: 10.1088/1674-4926/33/4/045005.
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Design of an LED driver based on hysteretic-current-control mode in a 0.6 μm BCD process
DOI: 10.1088/1674-4926/33/4/045005
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Abstract
Based on the 0.6 μm BCDMOS process a hysteretic-current-control mode white light LED driver with high accuracy and efficiency is presented. The driver can work with a 6-40 V power supply, the maximum output current is up to 1.0 A, the maximum switching frequency is up to 1 MHz, the output current error is less than ±5%, and the efficiency is greater than 80%. The circuit details of the high-side-current sensor and high-speed comparator, which greatly affect the accuracy of the whole driver, are emphasized. Then, the simulation and test results of this work are presented.-
Keywords:
- hysteretic-current-control
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References
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] -
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