controller allows the use of any device or fixture employing ordinary
low voltage incandescent lamps or LEDs to simulate the flickering
or twinkling illumination given off by candles, oil lamps, or gas
lighting. The controller is completely electronic and produce a truly
random effect difficult to achieve using traditional approaches that
employ multiple square wave generators or ordinary analog timer circuits.
It will handle loads to 6 amperes per channel, 30 amperes maximum
total. A microcontroller is used to generate a random effect without
discernable patterns or repetition cycles seen in other non-random
approaches. Therefore a realistic appearing flame effect is achieved.
If the bulbs are placed closely together in a fixture, the effect
of motion is produced, as if there were flames or fire present. These
controllers use efficient switching type circuitry and power dissipation
is minimal. Each channel is totally separate with individual random
waveforms so no repetition of patterns are produced, nor is there
any "chaser" effect , in which the lamps all flicker with
the same pattern but with a visually detectable time delay among the
bulbs or LEDs. There is no requirement to use all eight channels.
An on board DIP switch is provided to adjust the intensity of the
flickering effect to achieve desired effects with bulbs or LEDs
This controller can also be used with a number of suitably colored
lamps to simulate a fire. Many other applications exist, such as mobile
Halloween and Christmas lighting, or in situations where mood lighting
or special effects are desired. Use of incandescent lamps may greatly
reduce the danger and fire hazards associated with candles and oil
lamps, while still producing the same kind of lighting without open
flames or danger of fuel spills and toxic fumes. These controllers
can operate with 6 volt up to to 42 volt lamps , with up to 6 amperes
load per channel. Flicker rate is also adjustable for realistic effects.
This controller is also useful in signage, displays, outdoor or automotive
applications such as roof mounted light bars, where larger DC loads
must be handled and where only battery supplies are available, or
where the direct use of AC line voltage is impractical or undesirable.
Requires negative grounded power supply. Lamp and LED loads are hot
side switched, allowing one side of load to be returned directly to
negative supply leads. This allows use of most standard lighting devices
and fixtures used for 12V applications.