Using IC 555 Police Sirine Circuit Diagram

Using IC 555 Police Sirine Circuit Diagram, this is the simple Police Sirine Circuit Diagram. The series of police sirens with 555 ic this is a series of sirens that utilizes two IC 555 as a pulse generator and producing shrill voice.

Both ic 555 respectively build the astable multivibrator circuit and generate output signals with different frequencies. It is intended to be used as one of the high frequency generator or a screeching sound and the other as a regulator of the swing from last shrill voice. If we observe the working principle of this circuit is very similar to a series of modulation fm. Where the shrill sound signal likened to a high frequency signal from the oscillator circuit and control signal swing is the wail of the information signal or input signals that will transmit. This is consistent with the shape of the output signal associated with the loudspeaker, which has an output signal frequency changes in the form of regular meetings wave tenuous.

 Using IC 555 Police Sirine Circuit Diagram


Using IC 555 Police Sirine Circuit Diagram

Actually a series of sirens could be simpler than if you use a 556 IC which is a dual multivibrator or equal to two pieces of IC 555. IC 556 has two multivibrator circuit menfaatkan so you can meet the workflow of this siren sound-producing circuit. Or you can also make it by using a combination of multiple transistors. And it could be you do remember the oscillator circuit can be easily made with transistors.

Appropriate image above then:
R1, R2, and C1 is a determinant of the frequency of the signal generated by IC1
R3, R4 and C3 is a determinant of the signal frequency whine
Signals generated by IC1 IC2 pin 5 connected to the control signals intended for the resulting shrieks
Screeching sound signal will swing to follow the control of the output signal IC1
You can do experiments in order to gain more understanding of police sirens this circuit by changing the value of some critical components such as the frequency of R1, R2, R3, R4, C1 and C3.

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