Programming instructions

Buzzer/Sonalert Buzzer
 National Instruments Corporation 11-9 Multisim Component Reference Guide
11.7 Buzzer/Sonalert Buzzer
This component uses the computer’s built-in speaker to simulate an ideal piezoelectric buzzer.
A piezoelectric buzzer sounds at a specific frequency when the voltage across its terminals
exceeds the set voltage.
The buzzer is simulated as a single resistor whose resistance value is dependent on the
buzzer’s rated voltage and the current. It beeps when the voltage across its terminals exceeds
its voltage rating, V
rated
.
Buzzer resistance
Beeps when
r
V
i
rated
rated
=
VVab rated≥
ComponentRef.book Page 9 Thursday, December 7, 2006 10:12 AM