La richiesta
“Draw a 12 V car alarm circuit with an arming switch, shock sensor switch, transistor, resistor-capacitor timing network, siren and flyback diode.”
Prova alloraAdd an LED that shows the alarm is armed.Change the siren to a relay output.
Cosa contiene questo disegno
Leggi le decisioni che ne stanno alla base.
01
Use of transistor switch to drive siren
02
RC network for timed siren activation
03
Freewheeling diode for protection
Suitable for basic vehicle security systems, can be adapted with relay for higher current sirens.