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Gateway - (application / block diagram added 6/07) |
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Good Old Parking Sonar - This was one of my first designs: it is an ultrasonic
parking sonar. Based on an ultrasonic amplifier from an article seen on a 1982
magazine, it was once installed on the rear bumper of my Volvo Station Wagon. It
served very well for many years. Connecting it to the reverse gear lights, it switches
on automatically and shows you the distance to the nearest obstacle (according to his
beam) on a led scale. When the last led lights, a buzzer is also activated telling you
to stop immediately....(added 06/05) |
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Grand Cherokee Off Highway Lights - (circuit design added 8/03) |
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Head Lamp control by the shifting lever - This circuit causes the operation only
when the head lamp is lighted by 'IC Con-Light'. Because, in the case of operation by
the usual lamp switch( combination swtch ), it is to do as the head lamp ….(added
04/05/06) |
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Head Lamp illumination confirmation device - Circuit where I introduce here it
checks the normal operation of the head lamp and warns to the driver in the case that
the electric bulb is not lighted.….(added 04/05/06) |
|
Head Lamp turn on dimly - In Japan when the momentary stop is done with
intersection at night, the head lamp is turned off. The circuit where.….(added
04/05/06) |
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Headlight Alarm - Electronic circuit (Tony van Roon's electronic design added
02/05) |
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Headlight Flasher - This circuit was requested from an email. It will allow your
car headlights to flash on and off at the same time or it will cause them to flash
alternately. The circuit is based on the 555 timer. It is used in the astable mode.
The 555 timer ….(added 04/05/06) |
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Headlight Reminder - ASCII format (added 8/03) |
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Headlights Timer - Pushbutton activated Very simple circuitry (added 3/05) |
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Highway Alert Signal Lamp - (electronic Circuit / Schematic added 10/04) |
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Hijack Alarm (Ron J) - The first circuit was designed for the situation where a
hijacker forces the driver from the vehicle. If a door is opened while the ignition is
switched on, the circuit will trip. After a few minutes delay, when the thief is at a
safe distance, the alarm will sound and the engine will fail....(added 10/05) |
Improvement of the power window switch - Most of the car in Japan( probably your
country also ) are equipped with the power window. The power window does not operate
when the engine is stopped.
There is reason in order that the power window operates….(added 04/05/06) |
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Infra Red Remote Control Extender (Andy Collinson) - This circuit is used to relay
signals from an Infra Red remote control in one room to an IR controlled appliance in
another room…..(electronic design added 6/07) |
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Inside Story: Audison LR604XR Amplifier (Car Audio) - Of the few car amplifiers I
tested, gutted, decyphered and fixed, this one seems to be the best in design quality.
Too many car amps (although solidly built) are apparently designed by computer class
students, too many traces, too many vias, absolutely wrong component placement etc.
And on schematic level, their different functional parts look like a newspaper clip
collection. If the amp ….(circuit design added 03/08) |
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Interface between GM's 5 Volt 8192 Baud ALDL Data Stream & a PC Serial Port -
(circuit design added 8/03) |
|
Jared's Ride Isn't Fly But the Steering's Perfect - So he always stays on course,
Jared designed a mechatronic device that simulates perfect steering in an automobile.
The small-scale, single-wheel model determines the speed of wheel rotation from the
magnitude of the curve it's traveling…. Gadget Freak / Design News (added
08/08) |
|
Junction Box Rear - (application / block diagram added 6/07) |
|
Junction Box Underhood - (application / block diagram added 6/07) |
|
KITT Car Scanner - This custom mod gives your computer the personality of KITT,
the computerized car from Knight Rider TV fame. It slides into a CD drive bay, and
only needs a single standard power connector. The project is a light display which
imitates the dot in KITT's hood.... (design idea added 08/08/08) |
|
Knight Rider Lights - The 555 timer IC is connected for Astable Operation, the
clock pulses are fed to the 4017 IC via the 10K resistor. The 4017 is a 10 stage
counter, each of the outputs is connected to the appropriate LED, as some LEDs need to
be on for more than one count, we use diodes to avoid a short circuit....(added 6/07) |
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Knight Rider Look-a-like Lights - (design added 05/06/07) |
|
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....
(added 05/06/07) |
|
LED Driven tail/brake Light Cluster - LED driven tail/brake Light Cluster Constant
current circuitry 12V Battery operation (added 3/05) |
|
LED HeadLamps - This article includes circuits of DC-DC LED drivers (click P ICs
for bigger ones) step downs to run LEDs on less than Battery Volts, Boost for above.
(added 4/02) |
|
Light Organ for Car - flashes3 low voltage Light, operates at10-25-Volt voltage,
in PDF format, text in Finnish (added 6/06) |
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Lighting Third Brake Light - (Tony van Roon's electronic schematic / circuit added
4/02) |
|
Low Power-Ve Supply - Low power -ve supply for car audio preamps and crossovers
(added 6/07) |
|
Mechatronic Throttle Drive - (application / block diagram added 6/07) |
|
Monitor & Protect Automotive Systems with Integrated Current Sensing - DN374
Design Notes (Linear Technology) (app note added 1/06) |
|
Monolithic Step-Down Regulator Withstands the Rigors of Automotive Environments &
Consumes Only 100µA of Quiescent Current - DN378 Design Notes (Linear
Technology) (app note added 6/06) |
|
Motorcycle Alarm - Any number of normally open switches may be used. Fit the
mercury switches so that they close when the steering is moved or when the bike is
lifted off its side-stand or pushed forward off its centre-stand. Use micro-switches
to protect removable panels and the lids of panniers etc...(circuit design added 8/03) |
|
Motorcycle Alarm No.3 (Ron J) - This circuit features an intermittent siren output
and automatic reset. It can be operated manually using a key-switch or a hidden
switch; but it can also be wired to set itself automatically when you turn-off the
ignition. By adding external relays you can immobilize the bike, flash the lights
etc.....(circuit design added10/05) |
|
Motorcycle Alarm Number 4 - This is a simple easy to build transistor based
motorcycle alarm. It's designed to work at 12-volts. But if you change the relay for
one with a 6-volt coil it'll protect your "Classic Bike". The standby current is
virtually zero so it won't drain your battery. (added 10/05) |
|
Motorcycle Alarms Numbers 5 & 6 - These are two easy to build relay-based alarms.
You can use them to protect your motorcycle but they have many more applications. If
you use relays with 6-volt coils they'll protect your "Classic Bike". Both alarms are
very small. The completed boards occupy about half a cubic-inch 8 cc. The standby
current is zero so they won't drain your battery.... (added 10/05) |
|
Motorcycle Brake Light Flasher - (Tony van Roon's schematic / circuit added 08/09) |
|
Motorcycle Low Voltage Warning - (Tony van Roon's circuit design added 08/09) |
|
Motorcycle Turn-signal System - (Tony van Roon's electronic circuit added 08/09) |
|
MTX250 Car Amplifier: Autoformer Switch-Mode Power Supply - This is a small 2*25
(actually, 2*50) WPC amplifier with 3-order crossover stage (configurable as LP or
HP). Of particular interest is the unconventional autoformer PS arrangement. Since the
power FET's drains are not tied to ground anymore, it needs another transformer to
drive gates....(circuit design added 04/05/06) |
|
NESblinky-Nintendo Controller Bike Flasher - I saw the "Light Up Your Ride"
contest, and I pondered about what could be re-purposed to increase the visibility of
my bike, all while hopefully blinding a motorist or two into a fit of retro rage. I
happened upon an old broken Nintendo controller, which made me think of all the
superfluous NES controller mods I had seen before. This sparked a....(07/07/07) |
|
New CCFL Power Supply Expands Automotive Applications for Back Lit Liquid Crystal
Displays - MicroNote 1402 from Microsem (app note added 6/06) |
|
Nite Rider Lights Circuit - ….(electronic schematic added 08/08) |
|
No Hassel Lighting Third Brake Light - (Tony van Roon's electronic circuit added
4/05) |
|
Oxygen Sensors - When they go bad your automobile runs poorly, learn about them
and build a substitute for diagnostics or off-road use. (added 8/03) |
|
Park Aid - 3-LEDs signal bumper-barrier distance Infrared operation, indoor use
(added 9/04) |
|
Parking Lamp control - ….(added 05/08) |
|
Parking Sonar - This was one of my first designs: it is an ultrasonic parking
sonar. Based on an ultrasonic amplifier from an article seen on a 1982 magazine,
it was once installed on the rear bumper of my Volvo Station Wagon. It served very
well for many years. Connecting it to the reverse gear lights, it switches on
automatically and shows you the distance to the nearest obstacle (according to his
beam) on a led scale. When the last led lights, a buzzer is also activated telling you
to stop immediately....(added 06/05) |
|
PIC16F84A discolight effect with bass beat control Circuit - ….(design added
08/08) |
|
Portable CD Player Adapter for Car (Aaron Cake) - Whenever I'm in the car
listening to my favourite CD, it always happens-my batteries go dead. To solve that
problem, I built this extremely simple regulator circuit. It steps down the 12V from
the lighter socket to 9V which is used by the CD player....(electronic circuit added
7/03) |
|
Power Flasher (PAGE 113) - Suitable for alerting purposes. Drives 12V Car
bulbs (schematic added 6/07) |
|
Power supply for a car tube Amplifier - ….(design added 07/07) |
|
Power supply meets automotive transient voltage specs - 09/18/08 EDN-Design Ideas:
An automotive power supply meets the transient-voltage specs of ISO 7637-1.....(design
idea added 008/09) |
|
Pulsing third Brake lite for cars - (Tony van Roon's electronic circuit added
4/05) |
|
RD68HC908LHID : LIN-bus HID Lamp Levelling Stepper Motor Control using the Motorola
908E625 - This reference design describes a car High Intensity Discharge (HID)
lamp leveling system with a LIN-bus interface. An essential part of the system is a
stepper motor controller operating as a LIN-bus slave (LIN Stepper Controller). All
functionality is provided by a general purpose LIN-bus IC MM908E625 and LIN Stepper
....(app note added 3/05) |
|
Remote Door Lock (Seiichi Inoue) - ….(added 05/08) |
|
Reverse warning device - The car that is equipped with the reverse lamp. In the
case that it is not equipping, it's a defective car.….(added 05/08) |
|
RTOS vendors move to support automotive standard - 04/10/99 EDN-Design Ideas:
[Note: File contains multiple circuits. Scroll to find this one.] The
Tornado for Automotive tool suite from Wind River (Picture)supports the OSEK
automotive operating system initiative. Tornado includes MotorWorks, an OSEK-compliant
RTOS that the company acquired through.....(design idea added 2/06) |
|
Rush Converter for the Car - (circuit design added 8/03) |
