Abstract

In this paper, a four-channel lighting-emitting diode (LED) driver is presented, which combines a twin-bus converter and three differential-mode transformers. In this LED driver, the twin-bus converter can achieve reduction of the voltage stress of the switch, and the differential-mode transformers can achieve current sharing. Furthermore, the twin-bus converter can provide demagnetizing paths for the differential-mode transformers. Above all, the LED strings can be easily expanded. Moreover, the LED currents can be regulated by the dimming control switch. Finally, theoretical deductions and experimental results are provided to demonstrate the effectiveness of the proposed topology.

© 2016 IEEE

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription