Method and firmware for generating a digital dimming...

Details Method and firmware for generating a digital dimming... Method and firmware for generating a digital dimming...

2008-03-05

2011-11-22

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S224000, C315S307000, C315S360000, C315S312000, C315S149000

Reexamination Certificate

active

08063578

ABSTRACT:
A method and firmware for method of generating a digital dimming waveform for an inverter includes steps of receiving programmable parameters as input to firmware in an inverter voltage microcontroller including a soft start duration, a restrike voltage, a restrike duration, a recovery duration, a sustaining voltage, a dimming duty cycle, and an inverter frequency; and generating by firmware in the inverter voltage microcontroller a first portion of a pulse-width modulated digital switch control signal having a frequency equal to the inverter frequency and a duty cycle that varies from a first value to a second value during a time interval equal to the soft start duration.

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