Appeal No. 1997-2289
Application 08/395,691
the claims in the application.
The invention relates to a source operative to provide an
AC power line voltage between a pair of power terminals and a
control voltage between a control output terminal and one of
the power line terminals, the source including a control means
to adjust the control voltage and an electronic ballast having
input terminals connected with the power line terminals and a
control input terminal connected with the control output
terminal. The ballast output terminals are connected with a
gas discharge lamp. The control circuitry is responsive to
the control voltage and functions to control the magnitude of
the lamp current supplied to the gas discharge lamp. The
invention is further illustrated by the following claim.
1. An arrangement comprising:
a source operative to provide: (i) an AC power line
voltage between a pair of power line terminals; and (ii) a
control voltage between a control output terminal and one of
the power line terminals; the source including a control means
operative to effectuate adjustment of the control voltage; and
an electronic ballast having: (i) two power input
terminals connected with the power line terminals and one
control input terminal connected with the control output
terminal; (ii) a set of ballast output terminals connected,
2
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