The simple fridge alarm circuit will alert the user in case the fridge malfunctions with its specified temperature cycle specifications. The use of fridge in homes has become a de […]
Simple Electronic Siren Circuit
This simple electronic siren circuit project aims to explain designing a simple circuit for an electronic siren. It is built on a single chip – CD4011 (IC1). In order to […]
Ultrasonic Alarm Circuit
This post talks about an excellent ultrasonic alarm circuit that could be efficiently established for detecting sound pressures over the natural human hearing capability, which could cover from 20 kHz […]
Li-Ion Solar Charger Circuit
The article describes a straightforward Li-ion solar charger circuit with automatic cut-off applying transistors mainly. Solar Charger Circuit using Transistors with Automatic Cut-off Loking at the above simple solar charger […]
IC 555 Inverter Circuits
The first IC 555 inverter circuit with triacs makes use of an IC 555 for generating the oscillations and triacs for converting these oscillations into mains voltage through the transfomer. […]
Voltage Double Circuit using NE555
The following circuit diagram below illustrates a voltage doubler. Here, it uses IC NE555, running on 9KHz (approx.) and working as astable multi-vibrator. The Q1 and Q2 as the transistors […]