Vehicle alarm (CB20627E)

Details
Written by: Newton C. Braga

 

This car alarm was obtained in a Signetics documentation from the 1980s. The circuit uses the 555 and has a pulsed output to activate a relay that controls the horn. The sensors are parallel connected.

 


| Clique na imagem para ampliar |

 

 

 

  

Latest

Circuit Bench

  • Tone switch (CB9224E)

           This circuit recognizes a tone determined by the tuned input circuit (R3 / R4 / C2). The circuit...

  • 2 Hz Generator (CB25777E)

      This CMNOS crystal-based circuit generates a 2 Hz signal. It was found in the October 1994 issue of...

  • Crystal Oscillator LM339 (CB17186E)

      This is one of the possible configurations using the LM139, 239 or 339 voltage comparators. The...

Buscador de Datasheets


N° de Componente