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Using 555 Alarm to Detect and Alert Battery Low Voltage

Last Updated on November 17, 2024 by Admin Leave a Comment

low voltage detector alarm

This low battery alarm circuit using IC 555 was initially used in conjunction with an automated mains/battery DC power supply to power transceivers. Having the power supply usually at 13.6 […]

Filed Under: Security and Alarm Circuit Tagged With: 555, Alarm, Alert, Battery, Detect, Low

Battery Low Voltage Alarm Circuit using NAND Gates

Last Updated on November 17, 2024 by Admin Leave a Comment

battery low voltage alarm circuit

The Battery Low Voltage Alarm circuit has a very significant purpose aside from its basic design. It alerts you when a battery is about to run out so you can […]

Filed Under: Security and Alarm Circuit Tagged With: Alarm, Battery, Gates, Low, NAND, voltage

Precision Temperature Alarm Circuits using Op Amps

Last Updated on November 13, 2024 by Admin Leave a Comment

temperature alarm circuit diagram

This article explores the workings a couple of highly accurate op amp-based temperature alarm circuits. In essence, a temperature alarm circuit is a device that is intended to sense a level of […]

Filed Under: New Circuits Tagged With: Alarm, Amps, Circuits, Precision, Temperature

High Low Temperature Alarm Circuit using Transistors

Last Updated on November 13, 2024 by Admin Leave a Comment

over and under temperature detector circuit

This high/low temperature indicator circuit uses only BJTs and the temperature is being monitored by a thermistor. This straightforward temperature alarm circuit is set to sound an alert (either vocally […]

Filed Under: New Circuits Tagged With: Alarm, High, Low, Temperature, Transistors

26 Best Alarm Circuits Explained

Last Updated on November 17, 2024 by Admin Leave a Comment

fig1 17

In this article we will discuss about many useful and best alarm application circuits. High Power Alarm Driver Circuit In such a circuit, a less powered SCR is employed to […]

Filed Under: Security and Alarm Circuit Tagged With: Alarm, Best, Circuits, Explained

Two Tone Alarm Circuit using Op-Amps

Last Updated on April 20, 2025 by Admin Leave a Comment

fig1 26

Sound alarm generators are essential in several applications, for example fire and burglar alarm techniques. This specific circuit creates a infiltrating two tone alarm signal possessing an output power of […]

Filed Under: Security and Alarm Circuit Tagged With: Alarm, Amps, Tone, Two

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