EL (electroluminescent)
lamps are used
primarily for the background
lighting
required by liquidcrystal
display panels
used in much battery
operated equipment
where low current
drain is a prime
requirement. The
IMP803 driver for such lamps contains the requisite
basic circuits: a switch-mode power supply
using a high-frequency oscillator and a
high-voltage H-bridge output driver using a
low-frequency oscillator. It can drive lamps of
up to 30 nF (10 in2) to high brightness.
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