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Car Anti-Theft Wireless Alarm - This FM radio-controlled antift alarm can be
used with any vehicle having 6to 12-volt DC supply system. The mini VHF, FM
transmitter is fitted in vehicle at night when it is parked in car
porch or car park. The receiver unit with CXA1019, a single IC-based FM radio
module, which is freely available in market at reasonable rate, is kept inside.
Receiver is .... (added 10/05) |
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Car Back-up Alarm - The brake lights of automobile trigger this circuit
on and off. This save annoyance of alarm when it is not needed.
This is an older circuit which was published in Popular Electronics Magazine, but
still a good circuit today. (Tony van Roon's electronic design added 2/06) |
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Car Battery Charger - An SCR Design with a 10 Amp rating. ….(design
added 12/08) |
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Car Battery Charger (Aaron Cake) - quickly and easily charge most any lead
acid battery, automatically turns charging off when ready (added 04/03/02) |
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Car Battery Indicator - ….(circuit design added 08/08) |
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Car Ignition Coil Driver From 12 Volts DC - A Simple Circuit to run a Car
Ignition Coil to Obtain High Voltage. Or a 12 volt to 110 or 220 volt
transformer for low power applications....(circuit design added 12/08) |
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Car Ignition Coil Driver From Direct 110 VAC. - This SCR Circuit can run a Car
Ignition Coil in your hometo Obtain High Voltage....(design added 12/08) |
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Car Loop Detector - Another SimpleBut Very Effective Circuit. Bury the
coil in your driveway and it will detect any vehicle there....(electronic
schematic added 12/08) |
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Car Network Device - Our present car controller runs on a single PIC16F870
micro and provides functions for remote door locks, headlight reminder, and car
finder. It is constructed using wire-wrap to allow for future expansion and
is mounted using Velcro on the passenger side of the center console.….(design
added 08/08) |
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Car NiCd Charger - This circuit provides up to20-Volt output from a
regular13.2V automotive battery, to enable constant current charging of NiCd
battery packs up to15 cells @1.2V (Tony van Roon's 18V total). (Tony van Roon's
electronic design added 4/02) |
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Car OBD II J1850 PWM, J1850 VPW, ISO-9141 cables schematic pinout -
(electronic circuit added 05/06/07) |
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Car OBDII diagnostic interface cable schematic pinout - (electronic circuit
added 05/06/07) |
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Car PreAmplifier & Artificial Earth - Especially for car audio installations,
can be used for any single supply system (circuit design added 8/03) |
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Car Radio tunes the Amateur Bands - (electronic design / schematic added 2/05) |
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Car speed detection device - Door lock is easy to forget. Even if it does not
lock there is seldom case the door opens during travelling. Even with, when
you are getting a child, the child plays and may open the door..(added 04/05/06) |
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Car Temperature Gauge - The Car Temperature Gauge is basically the same
circuit as March's project with some minor changes to the input circuit. This
circuit will display the water temperature to 1 degree resolution.….(added 6/07) |
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Car Voltage Gauge - The Car Voltage Gauge is based on 3 parts. The input
circuit is an Analog to Digital Converter (IC2 CA3162E). The purpose of this chip
is to sample an analog voltage and convert it to a decimal value which is read by
a Display/Decoder Driver (IC1 CA3161E). This chip will turn each seven segment
display ….(added 6/07) |
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Car Window Closer - This circuit automatically rolls up a car’s electric
windows when it rains. The windows are rolled up one at a time while system
monitors window motor current. When motor stalls, system moves
to next window and shuts off it’s last window. [Designed by
Andrew R. Morris (added 09/05)] |
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Central Junction Box - (application / block diagram added 6/07) |
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Charge Monitor for 12V lead acid battery. - A battery is a vital element of
any battery-backed system. In many cases battery is more expensive
than system it is backing up. Hence we need to adopt all practical measures
to conserve battery life. As per manufacturer's data sheets, a 12V rechargeable
lead-acid battery should be operated within 10. IV and 13.8V. When battery
charges higher than 13.8V … (added 10/05) |
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Charging & Power Management - (application / block diagram added 6/07) |
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Check Engine Beeper - When wired into a car’s indicator light panel, this
circuit will turn on a loud beeper when the “check engine” light turns on. (added
7/06) ….(designed by David A. Johnson) |
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Circuit Multiplexes Automotive Sensors - 01/20/00 EDN-Design Ideas: (design
idea added 6/06) |
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CMOS Based Motorcycle Alarm - This circuit features automatic Exit/Entry
delays, timed Bell Cut-off and System Reset. It has provision for normally-open
and normally-closed switches and will accommodate the usual input devices
(Pressure Mats, Magnetic Reed contacts, Foil Tape, PIRs and Inertia
Sensors)....(circuit design added 006/07/08) |
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CMOS Based Vehicle Anti-Theft Alarm - This car alarm circuit features Exit and
Entry delays, an instant alarm zone, an intermittent siren output and automatic
Reset. By adding external relays you can immobilize the vehicle and flash the
lights….(circuit design added 06/07/08) |
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Color Organ for a Car - 3 Channels.An Active Filter Design. Mosfet
outputs can drive Subsantial Currents for driving Lamps or ???....(design added
12/08) |
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Combination Lock for Car Liftgate - (circuit diagram added 05/06/07) |
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COPS Based Automobile Instrument Cluster - National Semiconductor Application
Note (app note added 2/06) |
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Dashboard - (application / block diagram added 6/07) |
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DC 12V to DC 50V Converter for Car - This is DC to DC circuit for Car audio.
12V input from car battery produces 50V DC. Circuit uses TL072 IC and 2N3055
bipolar transistors. ….(design added 11/08) |
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Diesel Glow Plug Control - (application / block diagram added 6/07) |
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Digital AM/FM Radio - (application / block diagram added 6/07) |
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Digital 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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Dome Lamp Dimmer - This unique circuit makes your dome light look cool.
Usually when the car door is closed, the dome light just goes OFF. With this
circuit, you can have our dome light fade slowly….(electronic circuit added 7/03) |
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Dome light dimmer for Cars - ….(electronic schematic added 03/08) |
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Dome Light Extender - This is a nice little circuit for cars which don't have
a dome light delay. Paul Hancock built this for his 1991 Toyota Celica and
is working perfectly. After Paul emailed me his circuit I built it and put
it in my 1992 Mercury Sable which was also lacking the dome light delay. I
put a 'U' type TO-220 coolrib on Q3 since my dome light has two bulbs. As a
matter of fact, I built the whole circuit into the coolrib and sealed it off with
heat-shrink.... (Tony van Roon's electronic design added 2/06) |
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Dome Zone System - (application / block diagram added 6/07) |
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Door lock cancellation switch - This is the circuit where can open the door of
the car even if there be not a key. The switch that cancels door lock is set
up to the car.….(added 04/05/06) |
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Door mirror Controller - As for the recent car, the door mirror is popular
thing and the electromotion housing type is used usually. Even my car is a door
mirror type, but the electromotion housing function was not attached.….(added
04/05/06) |
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Door Zone Control – Central Approach with Mechatronic Mirror - (application /
block diagram added 6/07) |
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Door Zone Control for Driver & Passenger Door 1 - (application / block diagram
added 6/07) |
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Door Zone Control for Driver & Passenger Door 2 - (application / block diagram
added 6/07) |
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Door Zone Control for Rear Doors - (application / block diagram added 6/07) |
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Electric Park Break - (application / block diagram added 6/07) |
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Electronic car ignition by Transistor BUX37 (EDY Cornholio) - This scheme is
for 4 cylinder motor. This will make your car spent less fuel, be a little bit
faster and you won’t have to frequently open your distributor cap to change the
contact buttons thus wasting less money….(electronic design added 6/07) |
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Electronic Combination Lock (Randy Linscott) - This circuit is very basic to
build. To open a the lock which is connected to the K1 Load you must press each
momentary switch in the correct sequence. The sequence used in this circuit is
S1,S2,S3,S4. If any of the other switches are pressed….(added 08/08/08) |
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Electronic Door Release - This circuit is designed to operate an electrical
door-release mechanism, but it will have other applications. When you enter the
four-digit code of your choice, the relay will energize for a preset time period.
Use the relay contacts to power the release mechanism. The standby current is
virtually zero, so battery power is a realistic option. (circuit design
added 04/05/06) |
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Emergency Light & Alarm - This circuit is permanently plugged into a mains
socket and NI-CD batteries are trickle-charged. When a power outage occurs, the
lamp automatically illuminates. Instead of illuminating a lamp, an alarm sounder
can be chosen...(electronic design added 6/07) |
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Engine Control unit Schematics - (circuit design added 8/03) |
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Engine Cooling - (application / block diagram added 6/07) |
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Engine Management Diesel - (application / block diagram added 6/07) |
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Engine Management Gasoline - (application / block diagram added 6/07) |
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Exhaust Gas Recirculation - (application / block diagram added 6/07) |
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Fake Car Alarm Light - Whenever the car’s ignition is turned off, this circuit
activates a flashing LED, which can be positioned to appear as an active alarm
system. (added 7/06) ….(designed by David A. Johnson) |
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FCD Fuel Cut Defencer - (circuit design added 8/03) |
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Flashing High Intensity LED 3rd Brake Light - This circuit to make a
flashing3rd brake light assembly was designed to be easy to locate all the needed
components and reasonably in expensive to build. (added 4/02) |
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Flashing/Pulsing third Brake lite for cars - (Tony van Roon's electronic
circuit added 4/05) |
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Fuel Injector Pulse Width Monitor - (circuit design added 8/03) |
