Knight Rider Look-a-like Lights - These circuits will give provide a Good Effect, duplicating the Knight Rider Lights, Plus
more. . .[G.L. Chemelec]
Large capacitor charge
Controllers - Here's a basic cap switch that will connect capacitor to
ground only when it's charged to within 0. 4-0. 7V from battery voltage (otherwise, it's charging through a 22 Ohm resistor,
which can be a low-power 12V lightbulb, too) . . . [klausmobile @ yahoo.Com]
LED 12 Volt Lead Acid Battery Meter - In
the circuit above, a quad voltage comparator (LM339) is used as a simple bar graph meter to indicate the charge condition of
a 12 volt, lead acid battery. A 5 volt reference voltage is connected. . .
LED driven tail/brake Light
Cluster - Constant current circuitry 12V Battery operation Circuit
diagram: Parts: R1 10K 1/4W Resistor R2 33R 1/4W Resistor (See Notes) R3 15R 1/4W Resistor (See Notes) D1 1N5819 40V 1A
Schottky-barrier Diode (See Notes) D2--D13 LEDs High brightness, high. . . [Flavio Dellepiane's web site]
Light Organ for Car - flashes3 low voltage Light, operates at10-25-Volt voltage, in PDF format, text in Finnish. . .
Lighting Third Brake Light - This circuit is NOT a pulser or flasher! What's so special about this circuit? Well, the first
third-brake light I installed I had to pull a wire from the Third Brake Light all the way underneath the carpet to the
brake-pedal-switch and I thought it would be easier to pluck the signal of both brakelights via the trunk. Bench-test your
circuit first and apply power to the circuit, . . . [Tony van Roon's circuit]
Logic Controlled 12v DC Motor
With Automatic Brake - There are times when you would like to
control a DC motor using a simple +5v logic swing signal. The circuit below performs this feat and also includes an automatic
motor braking circuit. This circuit will bring a fast moving DC motor to a stop in seconds. The braking action is
automatically applied whenever DC power is removed . . . [Circuit by David Johnson P.E., 02/18/10]
Loud 10-W Car Alarm
Siren - . . .
Low battery cut-off circuit for a car or
truck - Also acts as a Master On / Off Switch. NOW A New P-Mos
Version. Supplys Positive voltage to grounded devices. . . [G.L. Chemelec]
Low Power-Ve Supply - Low power -ve
supply for car audio preamps and crossovers . . . [Rod Elliott (ESP)]
LT3518 Full-Featured 45V, 2.3A Switch Current LED Driver-Video Product Brief - The LT3518 is a current mode DC/DC converter with an internal 2. 3A, 45V switch specifically
designed to drive LEDs. The LT3518 operates as a LED driver in boost, buck and buck-boost modes. It combines a traditional
voltage loop and a unique current loop to operate as a constant-current source or constant-voltage source. Programmable . .
. [Linear Technology App Note, Steve Knoth-Senior Product Marketing Engineer Aug 25th 2010]
Make your own LED Headlamp - I have submitted here my process for constructing an LED headlamp. I originally attempted to
fit the battery holders for 3 AAA cells along with a tiny PC board for the three LEDs and current limiting resistor all in a
tiny altoids tin. No go. I ended up buying a 3 cell holder with switch from Mouser electronics, gluing an elbow/ball joint
pivot from a desktop pen set I had pieces from to that battery holder, then bolting the pivot to a Walgreens tiny mint tin
(the sugar free ones come in a small oval shaped tin). The LEDs . . . [Contributed by: John Evans]
Mark 1/1A - This circuit is used to relay signals from an Infra Red remote control in one room to an IR
controlled appliance in another room. . . . [Andy Collison]
Mechatronic Throttle Drive - STMicroelectronics-Application. . .
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