Improvements in the electronic systems of alarm for vehicles automobiles. (Machine-translation by Google Translate, not legally binding)

摘要

Electronic anti-theft alarm for vehicles. It is formed by an electronic circuit encapsulated in epoxy resin, that comprises two transistors in cascade, the last of which it governs a release (24). When the alarm is activated, the transistors (20) and (23) drive and the relay opens the contacts (25) of the ignition coil and closes the contacts (28), activating the horn. The system is blocked through an hidden switch that inhibits the circuit and that is located on the outside of the vehicle. (Machine-translation by Google Translate, not legally binding)