230V AC LED DRIVER CIRCUIT WITHOUT TRANSFORMER


This is a DIY 230V LED Driver circuit without transformer. Here i am using 5 led's, you can increase the count. Due to the absence of transformers we can reduce the cost and size of the circuit considerably. As we all know LED's are cheap, efficient and cool device with low power consumption. So we can reduce our electricity bills to a great extent.

The circuit is powered by 230V 50Hz AC supply, so be careful while troubleshooting this project.

Led's commonly works only in DC, so we have to convert the alternating current to direct current and step down to a safe value before applying to the led sequence.

The circuit mainly consisting of 5 led bulbs, a bridge rectifier and a filtering network with voltage regulator.



The bridge rectifier is used to convert alternating current (AC) to pulsating DC. It is made possible by means of rectifying diodes (D1 to D4 1N4007)


The filtering is made possible by means of a capacitor (47uF). It is used to eliminate the ripples coming from rectifier circuit.

After regulating the filtered voltage using a zener diode, we get an almost direct current suitable for LED's.

CIRCUIT SCHEMATIC OF SIMPLE 230V LED DRIVER

led driver circuit diagram
Circuit Diagram

Comments

  1. My DIgital LyfAugust 28, 2012 at 10:43 PM

    Nice article..
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    ReplyDelete
  2. My DIgital LyfAugust 28, 2012 at 10:44 PM

    Nice article..
    Feel free to check out our interesting Android Blog
    http://mydigitallyf.blogspot.in/

    ReplyDelete
  3. Hybrid carOctober 3, 2012 at 8:53 AM

    LED specifications are used?

    ReplyDelete
  4. TittuOctober 11, 2012 at 12:00 AM

    you can use ordinary led's

    ReplyDelete
  5. Judi @kitchenknivesOctober 19, 2012 at 3:23 AM

    what is circuit safe form electric short for my body?

    ReplyDelete
  6. jagadishOctober 27, 2012 at 12:03 PM

    sir
    if i want to add more leds what are the changes to be made in the cct.

    ReplyDelete
  7. TittuOctober 28, 2012 at 3:02 PM

    @Jagadish
    You can increase the count, but after certain limit the light dims.

    ReplyDelete
  8. AnonymousOctober 29, 2012 at 1:15 PM

    wats that 120r
    is it 120 k or 120 ohms??

    ReplyDelete
  9. TittuOctober 29, 2012 at 2:52 PM

    120R means 120 ohms,
    sorry for the trouble...

    ReplyDelete
  10. Madhusha July 9, 2013 at 11:16 AM

    What is the purpose of poly capacitor? Thank you sir for details above.

    ReplyDelete
  11. UnknownAugust 13, 2013 at 1:56 AM

    Could you suggest a power supply from 230v to light 5-10 1W High Power white smd LEDs with high efficiency please..

    ReplyDelete
  12. UnknownAugust 14, 2013 at 10:20 PM

    Thanks for sharing this information of LED driver. Your given information is helpful LED drivers users.

    ReplyDelete

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