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Home » Decorative Lighting (Diwali, Christmas) » Diwali, Christmas 220V Lamp Chaser Circuit

Diwali, Christmas 220V Lamp Chaser Circuit

Last Updated on December 9, 2019 by Swagatam 38 Comments

electricity is dangerous warning message

The post explains a simple, compact, 220V, 120V transformerless light chaser circuit which can be used for illuminating 220 V mains operated lamps or bulbs in a sequential chasing manner.

Main Technical Features

The chasing or running lamp effect can be altered by means of pot controls. The system can be used as a decorative lighting during festive seasons like in Christmas and Diwali. The idea was requested by Mr. Ashish.

As usual, the proposed Diwali, Christmas light chaser circuit is built around the ubiquitous IC 4017 which is a divide by 10 Johnsons counter/divider IC.

It basically has 10 outputs in the order 3, 2, 4, 7, 1, 10, 5, 6, 9, 10 pinouts which can be made to shift in a sequential manner, one after the other by providing voltage pulses at its pin#14.

The above outputs can be either connected with LEDs for acquiring an illuminated chasing effect or can be terminated with triacs for driving 220 V mains operated lamps or incandescent bulbs in the same fashion, as shown in the diagram below.

Referring to the circuit diagram, we can see that the IC1 is clocked or pulsed at its pin#14 through a transistorized AMV stage.

Circuit Operation

This transistor astable multivibrator produces alternate high and low pulses at the collectors which can be witnessed by the blinking red LED.

With every high pulse or blink of the red LED, the output of IC1 sequences to the next subsequent output pin and continues to do this with every subsequent pulses at pin#14.

When the output reaches pin#11, the IC resets and the sequence returns to pin#3 for commencing a new cycle.

Here, since the outputs are terminated to gates of triacs, the triacs conduct with the same sequence illuminating the connected AC lamps producing a running or chasing effect.

The speed of this chasing or sequencing can be altered by simply adjusting the two pots VR1, VR2 appropriately.

The circuit runs from direct mains through a capacitive power supply and is therefore not isolated from lethal mains current, observe extreme caution while testing/handling the circuit while it's in an uncovered position.

Circuit Diagram

Diwali, Christmas, lamp chaser circuit 220V

CAUTION: NO MAINS ISOLATION PRESENT....HANDLE WITH EXTREME CAUTION TO AVOID SHOCKS, AND FATALITY.

Parts List

  • R1, R2, R3, R4, R5----R15: 1K
  • VR1, VR2 = 100k
  • C1, C2 = 10uF/25V
  • C3 = 474/400V
  • C4 = 100uF/25V
  • D1 = 12V zener, 1 watt
  • D2 = 1N4007
  • R16 = 10 ohms, 2 watt
  • Triacs = BT136
  • IC1 = 4017
  • T1,T2 = BC547
  • LED = red, 5mm

220 V Lamp Chaser using IC 7413

Through this circuit four 220V lamps could be used to illuminate in sequence, such that a 'running-light' effect is generated. The circuit is made up of square-wave generator (T1 , IC1), a shift register (IC2, IC3), and the lamp driver stages. P1 is used to vary the frequency of the square-wave from 0.1 Hz to about 10 Hz. The square-wave voltage is supplied to the clock inputs of the shift register.

When S2 is pressed the flip-flops get reset. The Q-outputs then turn into '0' and the Q-outputs into '1', all LED's are shut off and all the lamps are switched OFF. When S2 is released, S1 comes in position 1 causing the input of the register toturn into logic '1'.

Following one clock pulse, the input data of the flip-flop is carried to the output which illuminates the first lamp; S1 is now gets reset to position 2. From here on every subsequent clock pulse shifts the logic '1' on to the next flip-flop which in turn resets the last one, which causes the lamps to light up in sequence, producing a four 220V lamp chasing effect.

You'll also like:

  • 1.  LED Chaser Circuits – Knight Rider, Scanner, Reverse-Forward, Cascaded
  • 2.  220V Mains Operated LED Flasher Circuit
  • 3.  Single Transistor LED Flasher Circuit
  • 4.  230 Volts Bulb String Light Circuit for Diwali and Christmas
  • 5.  Switching Two Alternate Loads ON/OFF with IC 555
  • 6.  Remote Controlled Fish Feeder Circuit – Solenoid Controlled

About Swagatam

I am an electronic engineer (dipIETE ), hobbyist, inventor, schematic/PCB designer, manufacturer. I am also the founder of the website: https://www.homemade-circuits.com/, where I love sharing my innovative circuit ideas and tutorials.
If you have any circuit related query, you may interact through comments, I'll be most happy to help!

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  1. Seelamsetti Manikanta says

    hi bro
    can i connect low power leds at the outputs of decade counter ? any modification should be made in the power supply ?

    Reply
    • Swagatam says

      yes you can connect leds at the outputs of the IC..no mods required.

      Reply
  2. nobert singh says

    actullly i am a 12 small kid. once i went to a temple and saw a running light
    LEDs in that was just getting on and of then i thought it would be a multi wave ocillator circuit which have heavy duty transistors and is switching even and odd number LEDs that were creating a running effect can i make a running light like that for diwali decoration?

    Reply
    • Swagatam says

      i'll try to find this circuit for you, and inform you if i find it.

      Reply
    • nobert singh says

      No sir actually i observed that the LEDs placed in odd number places and LEDs placed on even number places were acting as the two loads in a disco light circuit i am having which i got from Bal Bhavan,Delhi it contains two transistors switching two loads in the runing light i saw in temple the two loads were even number and odd number LEDs connected in parallel connection so can i use that circuit by using two high power transistors?

      Reply
    • Swagatam says

      Hi Nobert,

      yes you can do it, use 8050 transistors, it will be enough for handling the leds in parallel, also include resistors for each LED string

      Reply
  3. Preston Jose says

    How Can we increase the no. of leds

    Reply
    • Swagatam says

      the above circuit is for 220v mains bulbs, not leds.

      Reply
  4. NAS NAS says

    What is lec in circuit?

    Reply
    • Swagatam says

      It's the LED

      Reply
  5. Rolf says

    how many bulb can i use in this circuit? in series and parallel

    Reply
    • Swagatam says

      depending on the triac rating you can add more bulbs in parallel on each string

      Reply
  6. Sarah Lina Saad says

    Sir, can i use ic 4028 and 4516

    Reply
    • Swagatam says

      sorry no, only 4017 or 4022 would work here

      Reply
  7. basit momin says

    Hello sir how i can run the led in above circuit as i know that the circuit is designed for for 220v bulbs but by making some changes can we run led on this circuit if yes then how many leds can run in series

    Reply
    • Swagatam says

      basit, how many LEDs do you want to run on each channel

      Reply
  8. basit momin says

    50 led in series on each channel

    Reply
  9. basit momin says

    50 led in series on one channel……..

    Reply
    • Swagatam says

      Ok you can do it, but you will have to use a 0.47uF/400V capacitor at the junction of all the led strings, and the other end of the capacitor to one of the mains inputs….the other mains input will connect with the all the points marked ground in the circuit and the triacs

      Reply
  10. arun kumar says

    Can you please tell me how can I connect two CFL bulbs in Christmas start which lights one at a time

    Reply
    • Swagatam says

      I'll try to upadte the details in a new article soon!!

      Reply
  11. Bubai says

    Can I use readily available LED chain/string in the market which is equipped 474k 400v cap transformer-less power supply within a small thin box without any filtering electrolytic capacitor. If yes Is any OpctoIsolator like MOC3021 required?

    Can I use any other SCR like BT169 or MCR100 instead of BT136 if yes which pin to what ?

    In BT136 is PIN T2 to neutral T1 to LED chain one wire and other wire of LED chain to LINE(phase) of 220v AC. is it correct or T2 to Phase…

    Reply
    • Swagatam says

      You must build exactly as shown in the diagram, I cannot suggest or recommend some other unknown circuit integration with the above circuit.

      BT136 center pin goes to the load, left side pin to ground….and the right side pin is the gate

      Reply
  12. Kesava Raj says

    If we use transformer input voltage 12v 1A to ICS…and 230v to bulbs & Triac…it will work ?….

    Reply
    • Swagatam says

      yes it will work but make sure to connect the circuit negative with the SCR or triac common ground line.

      Reply
  13. Kesava Raj says

    Common ground line means ….Neutral connection

    Reply
    • Swagatam says

      the line which may be connected with the right side pin of the triac/SCR, it could be phase or neutral whatever but this line should be also connected with the negative of the circuit….this will make the circuit extremely dangerous to touch and therefore caution will need to be maintained.

      Reply
  14. Moseur rahman says

    Hi, Swagatam Majumdar.
    I start a business as a wadding planar. For that I need to decorate the place with lights. Because of I am new in this business, I have to take the others lightning set and give them too much rent as a return. Now I decide, make my own lightning set with many varieties. but I know a little about this led circuit, and I can't find information as much as I need over the Internet. I hope you can help me with this. So please let me know if you can. it's really important for me

    Reply
    • Swagatam says

      Hi Moseur, If you provide with all the technical specification that you require for the lighting, I may try to suggest….

      but make sure the lighting pattern is not complex…

      Reply
  15. Pratheesh N says

    where to buy 8mm led in whole sale

    Reply
    • Swagatam says

      from Lamington Road in Mumbai

      Reply
  16. Pratheesh N says

    dear brother i need how to design led running in different styles eg forward, revs,waterflow,

    Reply
    • Swagatam says

      Pratheesh, that will require a micrcontroller, can be difficult using an ordinary circuit.

      Reply
  17. Swagatam says

    Hi, please tell me what kind of programming do you plan to implement, by the way if it's too complex then you may have to go for a microcontroller design.

    also please specify, for music trigered RGB what kind of mixing do you intend to have??

    Reply
  18. Michael says

    can I use only 5 outputs and ignore the rest. that is, I use only pins 1234&5

    Reply
    • Swag says

      yes you can, just make sure to connect the 6th pin with pin#15…pin#15 should be disconnected from the ground and connected to the 6th pin

      Reply
  19. Temporary says

    Can you pls. Explain the circuitry or what chip is used to create this different patterns i tried everywhere but all in vain(that black box in diwali lights).

    Reply
    • Swagatam says

      Those are Chinese made embedded specially programmed chips, probably not available readymade in the market. You will have to program it on a microcontroller Ic and then you can use it for the purpose.

      Reply

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