Apparatus, logic and method for emulating the lighting effect of a candle

A method comprising:

• receiving a time-varying power waveform;
• and
• outputting a pulse width modulated (PWM) signal to a light source in order to produce a lighting effect emulating lighting from a candle flame, the PWM signal being synchronized with the time-varying power waveform, wherein the outputting of the PWM signal comprises:
• producing timing information based on the time-varying power waveform,
• producing values that are used to identify a particular amount of power applied to the light source based on a constant frequency clock signal, and
• producing the PWM signal based on the values and the timing information.

A method comprising:

• receiving a time-varying power waveform;
• and
• outputting a pulse width modulated (PWM) signal to a light source in order to produce a lighting effect emulating lighting from a candle flame, the PWM signal being synchronized with the time-varying power waveform, the outputting of the PWM signal comprises:
• producing a first waveform being a high frequency clock signal that is synchronized to the time-varying power waveform,
• producing a second waveform including values to identify a particular amount of power applied to the light source, and
• producing output PWM signals forming the PWM signal, the output PWM signals are equal in width and change based on modifications of values within second waveform.

A candle emulation device comprising:

• a light source;
• and
• a light source controller coupled to the light source, the light source controller to receive a time-varying power waveform and to produce a pulse width modulated (PWM) signal that is used to control the light source in order to produce a lighting effect that emulates lighting from a candle flame, the light source controller comprises:
• power regulation and conditioning logic to provide regulated, local power from unregulated input power,
• candle emulation control logic coupled to the power regulation and conditioning logic, the candle emulation control logic to produce a sequence of signals to create the lighting effect, and
• driver logic coupled to the power regulation and conditioning logic and the candle emulation logic, the driver logic to control the light source based on the sequence of signals supplied by the candle emulation control logic.

A candle emulation device comprising:

• a light source;
• and
• a light source controller coupled to the light source, the light source controller to receive a time-varying power waveform and to produce a pulse width modulated (PWM) signal that is synchronized with the time-varying power waveform in order to produce a lighting effect that emulates lighting from a candle flame, the light source controller comprises:
• a power regulation and conditioning logic to produce a control signal based on the time-varying power waveform,
• a power signal modulated clock coupled to the power regulation and conditioning logic, the power signal modulated clock to produce a clock signal based on the control signal,
• a driver logic to electrically coupled to the light source, and
• a candle emulation control logic coupled to the power signal modulated clock and the driver logic, the candle emulation control logic to produce the PWM signal based on the clock signal, the PWM signal activates and deactivates components of the driver logic in order to control the light source into producing the lighting effect.

A candle emulation device comprising:

• a light source;
• and
• a light source controller coupled to the light source, the light source controller to receive a time-varying power waveform and to produce a pulse width modulated (PWM) signal that is synchronized with the time-varying power waveform in order to produce a lighting effect that emulates lighting from a candle flame, the light source controller comprises:
• a power regulation and conditioning logic to produce a timing information based on the time-varying power waveform,
• a clock to produce a clock signal with a fixed clock frequency,
• a driver logic to electrically coupled to the light source,
• a candle emulation control logic coupled to the clock and the driver logic, the candle emulation control logic to producing values that are used to identify a particular amount of power applied to the light source based on the clock signal, and
• a power signal compensation logic coupled to the power regulation and conditioning logic and the candle emulation control logic, the power signal compensation logic to produce the PWM signal based on the values and the timing information.

A candle emulation device comprising:

• a light source;
• and
• a light source controller coupled to the light source, the light source controller to receive a time-varying power waveform and to produce a pulse width modulated (PWM) signal that is synchronized with the time-varying power waveform in order to produce a lighting effect that emulates lighting from a candle flame, the light source controller comprises:
• a driver logic to electrically coupled to the light source, and
• a candle emulation control logic coupled to the driver logic, the candle emulation control logic to produce output PWM signals forming the PWM signal, the output PWM signals are substantially equal in width for each power half-cycle and are used to control the light source to produce the lighting effect.