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Satellite Receiver - Note: Tuner, Channel and Source Decoders are XM or Sirius
exclusive chip sets (application / block diagram added 6/07) |
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SB-106: Adaptive Braking System ABS - National Semiconductor Application Note
(app note added 2/06) |
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Seat Control 1 - (application / block diagram added 6/07) |
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Seat Control 2 - (application / block diagram added 6/07) |
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Sequential Brake/Turn Lights - Bar-mode LED-cluster sequencer. Can drive
up to 16 clusters (circuit added 6/07) |
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Simple but reliable car battery Tester - ….(circuit design added 03/08) |
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Simple Car Battery Charger psimages - This very simple circuit uses a
transformer ,two diodes , a capacitor and an ammeter. To charge a battery just
connect + and terminals of circuit to corresponding terminals of
battery. When battery is not charged, ammeter reading shows 1-3
amps.....(added 10/05) |
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Simple car battery Tester - This circuit uses the popular and easy to find
LM3914 IC. This IC is very simple to drive, needs no voltage regulators (it has a
built in voltage regulator) and can be powered from almost every source…(electronic
circuit added 05/08) |
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Simple Car PreAmplifier & Artificial Earth - (circuit design added 8/03) |
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Simulate the Gyralite dual flashing headlights. - (electronic circuit added
4/05) |
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Smart HeadLamp Unit-for Low Speed CAN - (application / block diagram added 6/07) |
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Solar Car Array Controller Schematic - (circuit design added 8/03) |
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Solar Car Battery Monitor Schematic - (circuit design added 8/03) |
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Solar Car Brake Controller Schematic - (circuit design added 8/03) |
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Solar Car Display Controller Schematic - (circuit design added 8/03) |
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Solar Car Electrical Design & Circuit index - (circuit design added 8/03) |
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Solar Car Main Controller Schematic - (circuit design added 8/03) |
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Solid state relays simplify monitoring electric car Battery Voltage - 02/19/04
EDN-Design Ideas: Figure 1 shows the propulsion system of an electric vehicle. It
includes an electric motor, drive electronics, a mechanical transmission, vehicle
control/power management, a charging system, and a battery. The long-term
performance of the electric vehicle depends on ensuring the electrical health of the
battery and its charging system.....(design idea added 1/05) |
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Speed Limit Alarm - (circuit added 9/04) |
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Speed-limit Alert - Wireless portable unit. Adaptable with most internal
combustion engine vehicles. (electronic circuit added 06/07/08) |
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Stop Light Switch Circuit - When the brake pedal is on depressed, battery
positive voltage normally applies through the STOP fuse and stop light switch to
terminal STP– of the ECU, and the ECU turns the cruise control off…..(electronic
design added 6/07) |
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Super E-Line Applications in Automotive Electronics: replacement of Large Packaged
Transistors with an Enhanced TO92 Product - Zetec Semiconductors
Applications Notes Load drivers within automotive systems have to tolerate extreme
environmental and electrical conditions. This note describes how the Silicone
encapsulated E-Line range can provide cost and performance benefits to the
Automotive systems designer. (app note added 2/06) |
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Switch-mode Power Supply for a Tube Car Amplifier - To minimize heat loss on any
transistor, I use two pass FETs. In the car, input voltage is either 11.5-12.5V
(engine off) or 13.5-14.5V (engine on). In the first case, T1 and T2 are fully ON,
no need for heatsink. In the second case, T1 is OFF, T2 ON, all voltage and power
excess ...(design idea added 04/05/06) |
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Synchronized multi-spark module (SMSM) for Electronic Ignition Devices (EID) -
….(circuit design added 08/08) |
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Taxi Phone Automatic Dialler - (circuit / schematic design added 6/06) |
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The Alternator - Also the car batteryand cables....(design added 12/08) |
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The Flashing Heart - ….(design added 08/08) |
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Thief warning device (Seiichi Inoue) - ….(added 05/08) |
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Third Brake Light Pulser - Several years ago these flashers were introduced in
the automotive industry as part of the third brake light and contained strobe lights
(and strobing continuously for the duration of pressing the break pedal) but got
abandoned almost immediately sometime later because of the 'strobe' effect it has on
some people....(tony van Roon's schematic / circuit added 10/02) |
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Travel Touch Alarm - The Travel Touch Alarm can be used to provide a audible
alarm when someone touches the door knob or handle of your hotel room. The
door knob or handle must be made of metal for the circuit to work. The main chip in
the circuit is a 555 timer ….(added 08/08/08) |
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Two CMOS Based Vehicle Anti-Hijack Alarms - The first circuit is 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. The second circuit is a modification of the first, offering enhanced
protection in many more situations. (circuit design added 08/08/08) |
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Two Speed Pulse Wiper Control 1 - (application / block diagram added 6/07) |
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Two Speed Pulse Wiper Control 2 - (application / block diagram added 6/07) |
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Ultrasonic Parking Assistant - The basic theory behind the Parking Assistant is
the Sound Navigation and Ranging (SONAR) technique that is used for finding the
distance and direction of a remote object underwater by transmitting sound waves and
detecting reflections from it. First, a series of short ultrasonic pulses are
transmitted using a transducer that changes voltage into sound waves. The
transmitted pulse is reflected off an object, and the reflected wave is then
received by another transducer that converts sound waves into voltage. The
transmitted signal is also known as the ‘ping’ and the received signal is known as
the ‘pong’. By counting the elapsed time between the ping and the pong, the distance
between the device and an object can be easily calculated by multiplying the elapsed
time with the speed of sound. ….(circuit design added 11/08) |
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Ultrasonic Parking Sonar - (electronic circuit added 09/05) |
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Ultrasonic ParKontroller - Are you afraid that your brand new Hummer is going to
get scratched while parking it in a tight space? Do you have trouble backing
your large Mercedez S-class into your small garage? Fear no more! Our
ultrasonic ParKontroller can sense how far you are away from the wall....(added
08/08/08) |
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Ultrasonic radar - This is a very interesting project with many practical
applications in security and alarm systems for homes, shops and cars. It consists of
a set of ultrasonic receiver and transmitter which operate at the same frequency.
When something moves in the area covered by the circuit the circuit’s...
(electronic design added 6/07) |
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Unbalanced Automotive or Consumer Application - AS001 Jenson Transformer
Application Note. Isolation transformer box for unbalanced consumer audio line
signals (app note 08/08/08) |
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Vehicle Anti-Hijack Alarm No. 3 - Like the first two Hijack Alarms, if a door is
opened while the ignition is switched on, the circuit will trip. And after a few
minutes delay, when the thief is at a safe distance, the Siren will sound. But this
time the engine does not go on to fail automatically. Instead, it will continue to
run until the thief turns off the ignition. Then the engine will not re-start.
(circuit design added 05/08) |
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Vehicle Loop Detector - Another Simple But Very Effective Circuit....(circuit
design added 12/08) |
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Voltage Indicator - When troubleshooting the 12v electrical system of an
automobile, it is nice to have a simple voltage indicator tool instead of a
voltmeter. This electronic circuit, hobby circuit is powered by two AA or even
two N cells, which will provide enough energy for years of service... ….(designed by
David A. Johnson) |
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Wide Band Fuel Mixture Display - This document is an introduction to the
Wideband Fuel Mixture Display (FMD)…..(circuit design added 8/03) |
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Wide Input Range 1a LED Driver Powers High Brightness LEDs with Automotive & 12 VAC
Supplies - DN1012 Design Notes (Linear Technology) (app note added
08/08/08) |
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Windscreen loop aerial - If you do not like the whip antenna on your car, you
may try this alternative circuit. A one-turn loop is installed in the windscreen of
the car, keeping possibly away from the metal structure of the car. This loop is
terminated in a 6.5mm ring core suitable for VHF use...(circuit added 06/07) |
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Windshield Wiper Delay - The intermittent wiper circuit shown above causes the
auto's windshield wipers to wipe once every several seconds instead of constantly
wiping. The circuit may be added to older cars to provide the intermittent function
or it may be used to replace broken wiper circuits in modern cars. The
delay....(electronic circuit added 08/08/08) |
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Wiper Control - (application / block diagram added 6/07) |
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Wiper Speed Control - A continuously working wiper in a car may prove to be a
nuisance, especially when it is not raining heavily. By using the circuit described
here one can vary sweeping rate of the wiper from once a second to once in ten
seconds....(electronic design added 6/07) |
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Wireless Auto Tachometer (Aaron Cake) - (electronic schematic / circuit added
04/03/02) |
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WWV Converter for the Car - (circuit design added 8/03) |
