Seek CCFL inverter drive IC and circuit design

Check out Jim Williams' series of application notes for Linear Technology, on high frequency inverters for driving cold cathode back-lights used in laptop computers (application notes AN45, AN49, AN51, AN55, AN61, AN65).

The only thing wrong with them is that he is using a Baxandall inverter and calling it a current-driven Royer inverter.

Peter Baxandall described his parallel- and series-resonant class-D oscillators in 1959 in a paper in the Proceedings of the (British) Institute of Electrical Engineers (Baxandall, P.J, Proc I.E.E 106, B,

Royr described his inverter somewhat earlier - Bright, Pittman and George H. Royer in 1954 in a paper "Transistors as on-off switches in saturable core circuits" in Electrical Manufacturing - but the Royer circuit is missing the crucial inductor.

please

seeking

(website effing SUCK with java-script errors *so* sometimes one has to link directly to docs - the documents are at least sensibly-named regular files. Why they bothered with javascript noone knows; maybe to create a job for some inbreed nephew??)

Is there any typical circuit example on dimming the brightness of LCD monitor's CCFL backlights? Thank you.

LCD

What - You cannot read??

I try to understand other alternatives how to control the brightness of CCFL lamps?

Most (all?) CCFL controller datasheets will show you how to use _that_ device to achieve brightness control.

Most permit either analog or PWM control.

Find a suitable datasheet, (don't forget to look for app notes in the 'what's related' section) and _read_ it thoroughly.

Cheers

PeteS