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Infrared Remote Controlled Buzzer

The device is a simple comparator circuit driven by an infrared receiver IC.

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The device is a simple comparator circuit driven by an infrared receiver IC. The positive pin of the infrared receiver IC is connected to Rs1/Rs2 resistors connection node. When the infrared receiver IC receives the signal the voltage falls from 5 V to 0 V. This causes the voltage at the positive comparator pin to fall below the negative comparator pin. The comparator then provides the current to the buzzer. I included the 470 uF capacitor to filter any power supply surges from the buzzer. I used wire wrap to connect my circuit. I did not use a soldering iron.

Infrared Remote Controlled Buzzer.MOV

quicktime - 15.10 MB - 07/03/2024 at 02:33

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Infrared Remote Controlled Buzzer 01 Toy.jpg

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JPEG Image - 541.29 kB - 07/03/2024 at 02:32

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Infrared Remote Controlled Buzzer 02 Circuit.jpg

Circuit

JPEG Image - 95.38 kB - 07/03/2024 at 02:32

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Infrared Remote Controlled Buzzer 03 Simulations.jpg

PSpice Simulations

JPEG Image - 74.69 kB - 07/03/2024 at 02:32

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