In-Car Charger And Switcher Circuit For SLA Battery
This circuit was devised to switch power to a Peltier cooler in a vehicle. Power to the load from the vehicle s battery is switched by a SPDT relay while.....
High Power Bicycle Horn
An interesting circuit of a bicycle horn based on a popular, low cost telecom ringer chip is described here. This circuit can be powered using the bicycle dynam...
Fog Lamp Sensor Circuit
A rear fog lamp has been mandatory for trailers and caravans in order to improve visibility under foggy conditions. When this fog lamp is switched on, the fog l...
Courtesy Light Extender
In essence, this circuit is a 15 to 20-second courtesy light extender for cars. It is activated in the usual way by opening a door but it also samples the.....
Central Locking Interface
Some cheap car alarms do not have a connection for the central locking system. However, in most it should be possible to find a point in the alarm circuit.....
Car Reversing Horn With Flasher
Here is a simple circuit that starts playing the car horn whenever your car is in reverse gear. The circuit (1) employs dual timer NE556 to generate the s.....
Car Interior Lights Delay
Most cars do not have delayed interior lights. The circuit presented can put this right. It switches the interior lights of a car on and off gradually. Th.....
Car Battery Failure Detector
A car battery deteriorates in use and its life seldom exceeds four years. When new, its voltage may drop to only 2V while cranking the engine. As the batt.....
Automotive LED Timing Light
A useful timing strobe can be constructed using high-brightness LEDs and a few common components. Ignition pulses from the number 1 cylinder high-tension lead a...
Automatic Windshield Washer Control
Most, if not all, recent cars have an impressive amount of electronics, whether it be ABS brake systems, engine control with injection calculators, airbag.....
Audible Flasher Warning
If you re a biker or scooter rider you ll know how easy it is to forget to cancel your flashing indicators after turning without an audible reminder. Cons.....
12V Glow Plug Converter
Most small internal-combustion engines commonly used in the model-building world use glow plugs for starting. Unfortunately, glow plugs have an operating.....
Control car horns in PWM
The past experiences was pretty difficult, because the car horns have an inductive charge and it takes 12A and peak may be at 20 or 30A. The current electronic ...
Freescale unveils highly integrated TPMS device
Freescale Semiconductor has unveiled at the Freescale Technology Forum in Tokyo what it says is the industry`s first tire pressure monitoring system (TPMS) cont...
automotive sensor design with design checking and self assessment
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H Bridges provide smart power for automotive SoCs
The wide diversity of automotive motor-drivers, including those used for HVAC (heating, ventilation, and air conditioning), headlamp, seat positioning, window, ...
Simple but reliable car battery testers
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...
Automatic Headlight Brightness Switchs
This simple circuit can be wired into your headlight switch to provide automatic switching between high and low beam headlights when there is oncoming traffic. ...
Headlight Flashers
Small and interesting circuit that flashes your head lights. Automotive, head lights, circuit diagram. Built around famous NE555 timer circuit.....
Lin-bus Hid Lamp Levelling Stepper Motor Control Using Motorola 908e625 Reference Design
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