In this Stun Gun, Taser Gun Circuit, people use Tasers (or stuns) to deliver a powerful shock that stops an assailant. Here, the shock is to scare and hurt but not to kill. Bad person may not be in position to control his body for few seconds after shock and at that time we can […]
Power Supply Circuits
Light Up LED with Weak 1.5V Battery using Joule Thief Circuit
This easy LED circuit with Joule Thief can make light from a weak 1.5V battery, also it works with white, blue and UV LEDs. Further, we only need a low power battery like 1.2V, even better the LED still glows even if the battery is very low like 0.4V. So now we can use old […]
220V SMPS Circuit using One Transistor
To begin with, this article shows how to make 220V SMPS circuit using one transistor, as the circuit connects to 220V wall socket and it uses only one transistor MJE13005. Also, it does not need a special IC or many extra parts, instead, it uses a special diode and a transformer coil, so it controls […]
5 Watt LED Driver Circuit (SMPS)
This 5 Watt LED Driver Circuit (SMPS) shows how to make power supply using wall plug to turn ON bright LEDs. Also, it supports white LEDs but it works with blue, green, red, yellow and even UV light What is a 5 Watt LED Driver Circuit: A 5 Watt LED Driver Circuit powers a 5-watt […]
IC 555 Inverter Circuit
Need for small power things is always growing, mostly when no plug is in wall like in car, trailer or small house. So making our own DC to AC IC 555 Inverter Circuit is good idea and it easy to build. Also, it can give power to many home stuff like radio, DVD player, electric […]
SMPS Halogen Lamp Circuit
An SMPS halogen lamp circuit mostly needs a transformer to work and in this post we explain a new type of transformer using a switching power supply. Also, the circuit is simpler than old transformers and it can work with other bulbs too but only if they do not use RF (radio waves), furthermore, this […]