CMOS Piezo Transducer Buzzer Driver Circuit

Piezo Transducer Buzzer Driver




CMOS Piezo Transducer Buzzer Driver Circuit

A CMOS gate and transistor buffer can be used as an effective driver for a piezoelectric or piezoceramic transducer.

CMOS Piezo Transducer Buzzer Driver Circuit

PARTS LIST
R1 1MΩ
R2 560kΩ
R3 18kΩ
R4 1kΩ
C1 1000pF
Q1 2N2222
ICa And ICb CD4011
S1 Single Pole Double Throw Switch
PIEZO Piezo Element

This CMOS oscillator circuit for driving piezo-electric elecments.

S1 switch configurations

1 = ENABLE

2 = INHIBIT

4011 Quad 2-Input NAND gate IC top view

4011 Quad 2-Input NAND gate IC top view

You can change piezoelectric transducer sound changing R2 and C1  values.

piezo-electric transducer pin configuration

piezo-electric transducer pin configuration

PIN A connected to +5V and PIN B connected to Q1 collector.

Piezo Transducer Buzzer Driver




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