Hacks of Electronics
Let’s get started with how to build a smart Water Quality Monitoring System using TDS sensor and ESP32 or Arduino. A TDS (Total Dissolved Solids) Sensor measures the total amount of dissolved solids in a liquid, typically water. Dissolved solids include inorganic salts and small organic substances. The measurement is expressed in parts per million […]
This article details the construction and working of an Automatic Cut-Off Battery Charger Circuit using common components such as a relay, transistor, potentiometer (pot), LED, diodes, and resistors. Battery chargers with automatic cut-off functionality ensure batteries do not overcharge, enhancing their life span and performance. This circuit charges the battery in its Normally Closed (NC) […]
Battery chargers with automatic cut-off functionality are vital for protecting batteries from overcharging, enhancing their lifespan, and ensuring efficient operation. This guide explains how to build a simple 12V auto cut-off battery charger circuit using commonly available components, including a TL431 voltage reference IC, a MOSFET IRFZ44N, LEDs for status indication, and other basic components. […]
In this article, you will learn to build LM3915 battery voltage level indicator. The LM3915 is a popular integrated circuit (IC) used in projects that require visual feedback on voltage levels. It’s widely applied in devices like battery monitors, audio level meters, and power supply indicators. This IC lights up a series of LEDs to show […]
The SG3525 is a versatile PWM (Pulse Width Modulation) controller IC commonly present in inverter circuits to convert DC to AC at either 50Hz or 60Hz. Here’s a PWM based SG3525 inverter circuit with working. 1. Components Required: SG3525A PWM Controller IC N-channel MOSFETs (e.g., IRF3205) or IGBTs Transformers (Center-tapped, depending on the required output […]
The Universal DC-DC Buck & Boost Converter Circuit with UC3843 is a versatile circuit that can be used to either boost or buck a DC voltage, depending on the specific configuration. The UC3843 is a popular PWM (Pulse Width Modulation) controller IC used for these types of converters because of its high performance and ease […]