POWER SUPPLY HAVING AN AUXILIARY POWER STAGE FOR SUSTAINING SUFFICIENT POST IGNITION CURRENT IN A DC LAMP
First Claim
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1. A power supply for a DC lamp, comprising:
- an igniter that generates an ignition voltage for igniting the DC lamp;
an auxiliary power stage that outputs an auxiliary voltage for sustaining sufficient current in the DC lamp after the DC lamp is ignited;
a voltage conversion stage coupled to said auxiliary power stage, said voltage conversion stage generating a voltage at a level that is higher than said auxiliary voltage; and
a switch that couples the auxiliary voltage to the DC lamp and said voltage conversion stage for a predefined period of time.
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Abstract
The current invention provides a power supply that includes an igniter that generates an ignition voltage for igniting a DC lamp; an auxiliary power stage that outputs an auxiliary voltage for sustaining sufficient current in the DC lamp after the DC lamp is ignited; a voltage conversion stage coupled to the auxiliary power stage and generating a voltage at a level that is higher than the auxiliary voltage; and a switch that couples the auxiliary voltage to the DC lamp and the voltage conversion stage for a predefined period of time.
18 Citations
6 Claims
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1. A power supply for a DC lamp, comprising:
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an igniter that generates an ignition voltage for igniting the DC lamp; an auxiliary power stage that outputs an auxiliary voltage for sustaining sufficient current in the DC lamp after the DC lamp is ignited; a voltage conversion stage coupled to said auxiliary power stage, said voltage conversion stage generating a voltage at a level that is higher than said auxiliary voltage; and a switch that couples the auxiliary voltage to the DC lamp and said voltage conversion stage for a predefined period of time. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification