ML4832
ML4832 is Electronic Dimming Ballast Controller manufactured by Micro Linear.
July 2000 PRELIMINARY
ML4832- Electronic Dimming Ballast Controller
GENERAL DESCRIPTION
The ML4832 is a plete solution for a dimmable/nondimmable, high power factor, high efficiency electronic ballast. The BiCMOS ML4832 contains controllers for “boost” type power factor correction as well as for a dimming ballast. The power factor circuit uses the average current sensing method with a gain modulator and overvoltage protection. This system produces a power factor of better than 0.99 with low input current THD at > 95% efficiency. Special care has been taken in the design of the ML4832 to increase system noise immunity by using a high amplitude oscillator, and a current-fed multiplier....
