Author: smartxbrains
Powering Your Low Voltage Weather Station: A Beginner’s Guide
The Problem : Weather stations are great for monitoring temperature, humidity, and other conditions, but many hobbyists face issues with low voltage power supply. If the voltage drops below the required level, sensors and microcontrollers like Arduino can malfunction, leading to inaccurate data. The Solution : The easiest solution is to use …
Powering Your Low Voltage Weather Station: A Beginner’s GuideRead More
Understanding SMPS Dynamic Load Response and How to Fix It
Switch Mode Power Supplies (SMPS) are popular in DIY electronics, but they often face dynamic load response issues. When the load on the SMPS changes suddenly, voltage spikes or drops can occur, potentially damaging sensitive components or causing erratic behavior in circuits. The Problem : When devices like motors, relays, or LEDs switch …
Understanding SMPS Dynamic Load Response and How to Fix ItRead More
Reverse Protection for Power Tools: Prevent Damage Easily
The Problem : Reverse polarity happens when power tool connections are accidentally reversed, causing serious damage to internal circuits. For hobbyists, engineers, and prototypers in India, this can mean burnt-out components and costly repairs. Fortunately, protecting against reverse polarity is easy with the right components. The Solution : The simplest solution is to …
Reverse Protection for Power Tools: Prevent Damage EasilyRead More
MOSFET Gate Driver Isolation: Why It’s Essential and How to Fix It
The Problem : When using a MOSFET to control high-power loads like motors or LEDs, the gate needs to be driven correctly to ensure fast switching and prevent damage. However, without gate driver isolation, voltage spikes or noise from the load can feed back into the control circuit, potentially damaging the microcontroller or Arduino. …
MOSFET Gate Driver Isolation: Why It’s Essential and How to Fix ItRead More
Low Voltage Smart Mirror Power Supply: A Quick Fix for Hobbyists
The Problem : Smart mirrors are a fascinating addition to modern homes, but they often face low voltage issues that cause flickering displays or unresponsive touch controls. This usually happens because the power supply cannot provide enough stable voltage for the mirror’s components, especially the LED strips and controller board. The Solution : …
Low Voltage Smart Mirror Power Supply: A Quick Fix for HobbyistsRead More
SMPS Component Derating Guide for Indian Prototypers
The Problem : When designing a Switched Mode Power Supply (SMPS), component derating is essential to ensure reliability and longevity. Derating means using components below their maximum rated limits to avoid overheating and premature failure. For example, if a capacitor is rated for 50V, operating it at 40V or lower improves durability. The …
SMPS Component Derating Guide for Indian PrototypersRead More
Reverse Current Protection with Relays: Safeguard Your Circuits
The Problem : When working with DC circuits, reverse current can damage sensitive components by allowing current to flow in the wrong direction. This often happens when power supplies or batteries are connected backward. Fortunately, reverse current protection using relays is a simple and effective fix. The Solution : A relay acts …
Reverse Current Protection with Relays: Safeguard Your CircuitsRead More
MOSFET Switching Ripple Reduction: Easy Fix for Smooth Operation
The Problem : MOSFETs are widely used in switching circuits, but they often introduce voltage ripple or noise due to rapid switching. This ripple can affect sensitive components and reduce overall circuit efficiency. Ripple occurs when the MOSFET switches too fast, causing unwanted high-frequency oscillations. The Solution : A practical fix to …
MOSFET Switching Ripple Reduction: Easy Fix for Smooth OperationRead More
Low Voltage Touch Sensor Power Design: A Beginner’s Guide
The Problem : Touch sensors are commonly used in DIY projects and industrial automation to detect user interaction without mechanical switches. However, ensuring that a touch sensor works efficiently at low voltages (3.3V or 5V) can be tricky. When the voltage is too low, the sensor may not trigger properly, leading to inconsistent results. …
Low Voltage Touch Sensor Power Design: A Beginner’s GuideRead More
SMPS Voltage Feedback Design: A Beginner’s Guide
The Problem : Switch Mode Power Supplies (SMPS) are widely used in electronics projects, but maintaining stable output voltage can be tricky. The feedback loop is critical—it regulates voltage by comparing the output to a reference and adjusting accordingly. If not designed properly, it can lead to voltage fluctuations, inefficiency, or even circuit failure. …