connect to a micro-controller, PWM or a computer!ok, so maybe you don't want to use a microcontroller? unlike a resistor it constantly monitors the LED current and adapts to keep it constant. Additional Circuits. Let us see the working of this project.First, the 2.2µF X – Rated Capacitor (225J – 400V) will limit the AC current from the mains supply. 3 years ago In this, we designed an LED Light Bulb and used it as a regular bulb.
Hence, the Zener Diode is used in the project.A 4.7V Zener Diode is used for this purpose. Nowadays, people are investing more in LEDs due to their energy efficiency. But the maximum voltage at the input of the Bridge Rectifier is given byHence, you need to use a 400V rated filter capacitor. It boils down to this:Below are some basic parameters of the Luxeon LED's which you will use for many circuits. Hence, we used a 400V rated capacitor.A 390KΩ resistor is connected in parallel with this capacitor to discharge it when the supply is turned off. Current limiting resistor is basically used as a current sensing shunt resistor. The main components of this project are the X – Rated Capacitor, the Zener Diode and the resistor which limits the current in the Zener Diode. This is because, in the case of three phase supply, if any of the phases accidentally touches the input terminal, it can prove to be quite dangerous.The capacitor can produce spikes at mains fluctuations. I am hopefully I can get some insight from the experts like you concerning a little more detail about the calculation and the detail parts selection. 1 year ago © Alectronics - All rights reserved 230v LED Driver Circuit Diagram, Working and Applications Circuit Schematic with explanationIn this project, we have designed a simple 230V LED Driver circuit, which can drive LED directly from the mains supply.An LED is a special type of diode used as an Optoelectronic device. These LED drivers incorporate a variety of helpful functionality; they can simplify your design and, thanks to energy-efficient features, help to extend battery life in portable applications. These capacitors are connected line to line and are designed for high voltage AC circuits.The X – Rated Capacitor reduces only the current and the AC voltage can rectified and regulated in the later parts of the circuit. Like a PN junction diode, it conducts when forward biased. The output of the Bridge Rectifier is filtered using a 4.7µF / 400V Capacitor.For regulating the DC output of the Bridge Rectifier, we are using a Zener Diode. This circuit allows you to use any voltage between 2V and 24V to drive almost any type of LED with power consumption up to 5W.