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This is a simple Inexpensive car Protection Unit Circuit Diagram. This circuit to protect car stereo, etc from pilferage that costs less and requires no adjustments in the car but a good car cover. Place the circuit at your bedside and bring the two wires from the unit to the car (parked outside your home) and connect one wire-end to the cover and the other to the ground, with both wire-ends shorted by some weight such as a brick. So outwardly the mechanism is not visible. Circuit of car protection unit with alarm If someone tries to remove the cover, the alarm of the circuit starts sounding to alert you. The alarm can be switched off by resetting it using switch S1. The car protection circuit comprises two timer ICs: one for the alarm circuit (see IC2 in Fig.1) and the other to indicate that the battery has taken over as the power source (see IC3 in Fig. 2). Normally, the protector operates off AC mains and the battery takes over only when mains fail. As the battery current is not...

id America recently released LX, its latest dual USB car charger with leather grip. If you’re looking for a decent USB charger for your car, the LX may be able to catch your eyes. The LX is a practical USB car charger designed to offer a handy way to charge your mobile device in your car .  As we can see from the images, the USB charger features a stylish combination of leather grip and matte casing in order to compliment the interior of your car, and the USB charger comes with two USB port so you can use it to charge up to two mobile devices at the same time, including a 2.1A output for tablets and other high-power devices. Apart from that, built-in fuse protects your mobile devices against power surges. The LX dual USB car charger is available in two colors, each one is priced at $24.95 USD. If you’re interested, jump to id America official site for more details. [Via]

Using a mobile phone while driving is dangerous. It is also against the law. However, you can use your mobile phone as a powerful music player with the help of a stereo power amplifier. This does away with the need of a sophisticated in-dash car music system. Most mobile phones have a music player that offers a number of features including preset/manual sound equalisers. They have standard 3.5mm stereo sockets that allow music to be played through standard stereo headphones/sound amplifiers. Nokia 2700 classic is an example.  Mobile Car Stereo Player Circuit Diagram   A car audio amplifier with 3.5mm socket can be designed and simply connected to the mobile phone output via a shielded cable with suitable connectors/jacks (readymade 3.5mm male-to-male connector cable is a good alternative). Fig. 1 shows the circuit of car stereo player. It is built around popular single-chip audio power amplifier TDA1554Q (IC1). The TDA1554Q is an integrated class-B power amplifier in a 17-lea...

Car Subwoofer, for all people is a big gadget what love in your car. If you have a vehicle, the audio system is stronger bass sound that many audio enthusiasts desire. But subwoofers need more than a low-range speaker to perform well. The enclosures they sit in can play a huge part in the subwoofer's sound. help separate the sound waves generated by the rear of the diaphragm on the speaker from that produced at the front of the speaker. Otherwise, the two sounds would create distortion, echo, and reverberation, ruining the listening experience. So in your car can put this design: 1. Design of car subwoofer with dual chamber. This style is designed and built for deep bass performance. Offering a dual chamber and shared slot port vent design, 5/8-inch MDF construction, making for a durable speaker. Simple to setup and easy to use, the enclosure provides a sturdy box constructed of quality materials. 2. Design of car subwoofer with  screwed down terminal cups From the provider of...

Car 12V to 50V DC Converter Circuit Diagram This circuit for Car audio input battery 12V to 50VDC, It use transistor and IC TL072.