In this post I have explained how to make an illuminated LED cricket stump and bails for helping umpires declare a foolproof OUT, NOT-OUT decisions. The Circuit Concept You might be seeing these amazing cricket stumps in the ongoing 2015 ICC world cup cricket matches, which can be seen dazzle or light up brightly as […]
LED
How to Make a LED Flashlight Circuit
White LEDs have become so common nowadays that even school kids today know how to use them for making simple LED projects. LEDs are typically used for illuminating purposes, the discussed circuit is also intended for similar applications. The post talks about how to wire LEDs and battery to make a simple DIY LED flashlight. […]
Light Emitting Diodes (LED) Explained
The full form of LED is Light Emitting Diode. LEDs are special type of semiconductor diodes which emit light in response to a potential difference applied across their terminals, hence the name light emitting diode. Just like a normal diode LEDs also have two terminals with polarity, namely anode and cathode. To illuminate an LED […]
LED Lamp Circuit for Motorbike Headlamp
In this post I have explained a simple 21 watt LED lamp circuit module which can be used as a direct replacement for a standard halogen lamp used in motorcycles headlamp. LED vs Halogen Lamp The proposed “halogen” LED lamp replacement module image can be seen below: Conventional filament type halogen lamp is shown below: […]
LED Driver Power Supply Circuit Using Dimmer Switch
In this post I have explained an effective and efficient high current compact LED Driver power supply using a dimmer switch gadget. In one of my other posts I discussed a high voltage transformerless power supply circuit that used a triac for controlling the capacitive output, however since the concept involved shorting the capacitive output […]
Transformerless Constant Current LED Driver Circuit
In this post I have explained how just a single IC MBI6001 can be used as a transformerless constant current LED driver circuit for illuminating a chain of many LED in series. The MBI6001 series of ICs are designed to work with mains AC inputs and convert it into a lower voltage DC output which […]