September 2011
Intermediate to advanced
960 pages
38h 13m
English
Ultracompact LCD backlight inverters (15)
It has become desirable to fashion laptop computers with large area screens, leaving little room for the display’s backlight inverter electronics. Miniaturization limitations of high voltage magnetic transformers impose limits on achievable space reduction. Another voltage step-up technology, piezoelectric transformers, permits the desired size reduction and provides additional benefits. This publication describes practical piezoceramic transformers and support circuitry. Ancillary benefits of the piezoelectric approach are also described. Appended sections detail transformer operation and feedback loop considerations.
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