Ozone Air Water Sterilizer Circuit

How to make an Electronic Air  Water Food Sterlizer or Purifier circuit at home

By: Alok kumar

Ozone is a pale blue colored gas having a pungent smell or order (alike chlorine) with the chemical formula of O3. In the atmosphere ozone is produced due to the presence of Oxygen and strong UV rays or electrical discharges during thunder storms or lightnings.

This phenomenon produce ozone basically by knocking down the dioxide molecules (O2) which is present plentifully in the atmosphere, resulting in the reaction O2 → 2O. Where O is free nascent oxygen.

Then the resultant free radicals generated during above phenomenon as 2O collide around with each other forming  the ozone gas O3 . This process continues as long as the source which is lightning arcs or UV rays is present.

Here in this circuit we are using the property that by nature Ozone is a very strong oxidant even stronger than dioxides. This property of ozone is helpful in killing germs, parasites and other microorganisms which may be regarded as pests and hence is used as sterilizer for disinfecting or sterilize or purify Air, Water or Food.

However, the strong oxidizing property of ozone could be also harmful for humans and animals and could cause respiratory disorders if inhaled for longer periods of time inside a non-ventilated premise.

Simple Light Dark Detector circuit using LDR

How to make very Simple Electronic Dark or Light detector circuit using LDR and Integrating a Relay in it for making it a  Automatic Switch.

By: Alok kumar

Today we are going to learn how to make an eletronic dark or light detector circuit because this marvelous piece of gadget can be very useful if integrated with other devices as a switch. It means when a certain predefined intensity of light is reached our device is able to detect that condition and able to switch any device and can be very useful for saving energy and efforts. We can make a Automatic Lawn Light, Automatic Bulb or Tubelight, Automatic Car Head Light switch and many many useful circuit. It can be used in various ways if logically applied.

Automatic Emergency Light Circuit

How to make an Automatic Emergency Light Circuit for simple home uses using led lights.

By:Alok kumar

Today we are going to learn how to make a Automatic Emergency light circuit or Electronic candlefor simple home Power failure situations. Most of the time when unexpectedly power failure occurs suddenly we require a Light dource to see things in the room. For this purpose we are going to make an Efficient Emergency Light which Automatically turns-ON when power failure occurs.

Components Required:

Any Charger suitable for your battery, or 220V to 4.5V / 600mA Transformer D1 = 1N4004D2 = 1N4001R1 = 33Ω/1WattR2 = 470ΩC1 = 470µF/16VT1 = 2SB242 ( This is a pnp type transistor)LED's = Buy 4v led's( 8) Battery = Li-ion 4.5v 4AH or any battery either it is 12v or 6v but you need the good Charger for that battery in my case and also Increase the rating of diodes.

how to make a 48v Transformerless Electronic Automatic Battery Pack charger for Electric Vehicles or e-scooters or e-cars or e-rickshaws

How to make a 48volt Transformerless Automatic Battery Pack Charger for electric Vehicles, e-scooty, e-car, e-rickshaws etc.

By: Alok kumar

Today I am going to explain How to make 48v Automatic battery charger circuit which is transformerless or electronic.

Now a days electric vehicals e-scooters, e-rickshaws etc.. are very popular and beneficial for regular driving. It is also beneficial because traffic now a days are increasing very sharpely and to drive in traffic consumes lot of conventional fuel and pollute the environment more, if somebody have electric vehical he or she may only need to release the accelerator to save the charge in battery. Thats why most of the people in different countries are opting for electric vehicles.

The biggest problem with these electric vehicles are their batteries are very sensitive to overcharge and take long to recharged completely. So one have to be very attentive regarding charging if their charger dont support autocut feature while full charged.

So today we are going to learn how to make a 48V Transformerless Automatic Battery charger to make you guys relieved and dont worry about charging of your electric vehicles or e-scooters.

Intelligent Automatic Battery Carger circuit

How to Make the Intelligent Fully Automatic Fast, Efficient Battery Charger circuit at home.

By: Alok kumar

While i was searching for fully automatic battery charger or fast diehard battery charger what i found on google was only crap but nothing, I dont know either most of the people dont know what exactly fast battery charger is or they dont want to share that with public. Today i am going to explain How to make a intelligent fully automatic battery charger(6v 12v 48v or any) circuit.

First you should know that, we can not charge the lead acid batteries faster because Lead acid batteries are not designed to accept high current level continuously.

How fast charging is Done:

For charging the batteries faster we apply the full dose of  high current specified for that battery and when full charged automatically switch off the charging to prevent battery from overcharge. It works best for Li-ion batteries
.

The bottom line with Lead Acid batteries is that these can not be charged quickly unless a intelligent Automatic circuitary is incorporated.

Fast charging, It should be done in step wise mechanism means initially we charge using X1 rate and then gradually reducing the rate of charging to X1/10
as battery is getting charged we need to slow down the charging rate to prevent battery from damage and overheat. And when battery becomes full charged that need to autocut the charging operation.

Fastest 10minute Battery Charger circuit.

How to make Easiest 10-15 minute fastest Battery Charger

By: Alok kumar

Today i am going to explain how we can make the worlds fastest battery charger circuit at home in 5 minutes. It uses the most basic principle although it should be taken care that battery should not overcharged because it charges faster than any other charger.
The fast chargers out in the market actually is useless because i actually dont understand why their output current is much higher than specification of the battery. it may charge the battery faster like in 10 minutes but battery sooner become dead and useless and expands. They actually have no idea how fast charging works.

so just not wasting our precious time lets get started.

Here the components required is very popular and cheap so just dont worry you will get those components in seconds...

Components Required:

1. One rectifier diode IN5402, or IN5408, any you can find quick.

2. One incandescent bulb, having nearly exact voltage rating as the battery but current rating of the bulb should be 1/10 of the value of battery AH (AmpereHour).

How to make 0 to 12v Variable High Current Transformerless Electronic Power Supply or LED Driver or Electronic Dimmer which is Surge Free.

How to make a 0 to 12v Variable Transformerless Electronic Power Supply or LED Driver or Electronic Dimmer at home.

By: Alok kumar

In this post i am going to explain how to make a Electronic Dimmer or Transformerless Electronic Power supply or LED driver which can vary it output from o to 12v or even higher. This circuit can be a useful gadget for electronic hobbyist to test various appliances having different voltage rating for them. This circuit have a protection against Surge current while switched ON by Crowbar Network attached to its output. This design ensures that high current value is availabe at all voltage levels . So without wasting time lets get started....

I have previously explained various power supply on my blog but today we are going to learn a little bit about how to protect surge current from the circuit. 

Previously i had explained about how to make a variable high current, high voltage from 0v to 300v using a Mosfet and transistor.

Today we will see how to use Thyrister or SCR (Silicon Controlled Rectifier) for making a variable voltage high current surge free transformerless electronic power supply or Led driver or Electronic Dimmer by using a Crowbar Network.

Now lets start making this circuit.

Components Required:

Resistance: 1 Mega ohm, 22 ohm, 5k preset or potentiometer.

Diodes: four IN4007 diodes, 24v/400mW zener.

How to make a 0-300V Variable Voltage, Current Transformerless Electronic Power Supply or Driver Circuit.

How to make a 0~300v Variable Voltage & Current Transformerless Electronic Power Supply or LED Driver or Electronic Dimmer.

By:Alok kumar

In this post i am going to show how to make a variable transformerless electronic Power supply or Electronic Dimmer means this power supply can vary  both voltage as well as current. This circuit can be of great importance like checking different appliances (samll as well as big appliances) without worrying about buying their power supply which is diffrent for different appliances. It can be used on any device....

One day when i was testing a led strip on  Electrical Dimmer or Auto-transformer ( which actually is a bulky circuit), due to its bulkiness i start thinking why not develop a Transformerless Electronic dimmer for ease of use. So i come up with this circuit.

I made this circuit, short circuit proof. so enjoy making this marvel piece of Gadget.

How to make Transformerless or Electronic Power Supply/Driver

How to Make Transformerless 12Volt 1 Ampere or 2 ampere or more amperage compact DC electronic Power Supply or Driver/Charger.

By:Alok kumar


Today we are going to learn how to design and make the Cheapest and Smallest Transformerless electronic Power Supply or capacitive power supply 12v 1a or 2a according to our requirement. Actually there are many Power supplies available in the market but most of them are transformer/smps based and are very Big, Bulky, ugly, costly and have very complex circuitary to understand by a complete newbie.


So, lets get started to learn the design procedure so that we will be able to make the desired electronic power supply onward.


The biggest advantage of this explained circuit is that it is independent of input voltages fluctuations to a great extent


Here, we assume the input power source used here is 220V AC OR 110V AC 50~60Hz from home wall socket directly.


COMPONENTS REQUIRED:

C1= 400V, 1395K Capacitor or (Connect three 400v, 475k caramic capacitor in parallel or three 2uf/400v caramic capacitor) (Note if the mains current is 220v AC 50-60Hz if mains is 110v AC then use 250v/1395k).


[The above circuit is Verified and Tested circuit by me and works great, so make it, save money & enjoy.]

WORKING OF ABOVE CIRCUIT

In above circuit, R1 is actually doing nothing, but serve's the purpose of Bleeder Resistance, means it discharges the Charge stored in C1 gradually when the circuit is not in use( it may takes time between 1 to 15 sec according to its value and amount of charge stored).

This power supply is best suited for Capacitive loads like charging the battery, LED Drivers or any capacitive load...

So, By by reading the below post you guys will be able to design and make the power supply of any current rating and voltage rating according to your requirement. So please be focused and attentive to understand the technical specifications.


[Instruction: Above project deals with mains AC current & not isolated from AC mains, So be careful and work always under the guidance of any elder if you are a complete newbie. Please always remember to keep your one hand in pocket whenever working with any live circuit so that in case the current wont pass through your heart just for safety].

USE MALE AND FEMALE JACKS TO AVOID SHOCK BY CHARGED CAPACITOR.

In my next post i m going to post a circuit of 12V 5 ampere transformer less electronic switch mode power supply(or SMPS based) or Driver.


Posts Recommended:

1. Make 30volt 1amp transformerless power supply circuit
2. Make a 12v 5Amp SMPS transformerless electronic power supply
3. Make a 12V 10Amp, 20Amp, 30Amp, 40Amp variable transformerless electronic SMPS power supply
4. Simple 12 v 1 amp SMPS power supply, battery charger, LED driver circuit
5. Make 5V 2A Power supply by IC 78S05 simple circuit
6. Make 5V 1Amp Cell Phone battery Charger Circuit from 220/110v
7. Make 48V Transformerless Electronic Automatic Battery Pack Charger Circuit
8. Make a Laptop charger (efficient and reliable) from a car battery 12v

Today we are going learn a new type of circuit generally known RC circuit or capacitive power supply, which is the simplest and Cheapest circuit you will find ever.


I have created this Circuit during my research on how to increasing the power output of electronic or transformer less power supply for capacitive loads.


So now the question arises here is that - How to make this great and easy piece of Transformerless Electronic Power Supply or LED driver circuit at home.












C1= 400V, 1395K Capacitor or (Connect three 400v/475k or two 2uF/400V capacitor in parallel for 1.2Ampere or higher capacitance for higher current according to the calculations explained below).


R1= 10M ohm or 1M ohm 1watt resistor.


D1-D4= IN5408 (4 DIODES)( just choose diodes which have double ratig for our curent requirement for e.g. for 2 amp choose diode of rating 4 amp...)



R2= 10 ohm 1 or 2 watt.( 2 watt will be better for heat handling or dissipation)



C2= 1000uF(micro faraday) ,50 v ( 2 in number if you finds the output is fluctuating, connect them in parallel for better filtering of ripples produced due to rectification of AC mains current).


z1= zener of 15v to prevent any voltage fluctuations caused due to input voltage fluctuation to regulate our DC output to maximum of 15 volt max in extreme case.


{note: you must add a 10M or 1M ohm as a bleeder resistance parallel to C2 for Discharging the charge stored in C2 otherwise you may get a high current shock or surge current dur to charge stored in the capacitor if this charge is not discharged when circuit is not in operation it is going to remain for very long time and someone may get the shock. In later posts we will learn the techenique to remove any surge current by incorporating a crowbar circuit at the output. So simply to understand better this circuit and make it simple simply connect a higher value capacitor across capacitor C1.}


{Do not touch any terminals with bare hands even the Driver is Unplugged. First discharge the C1 and C2 by shorting the input and output terminal together. there will be spark generated while doing this this means charge stored is discharged completely by you now. Only after that you should touch any terminal, or leave for some time before touching the terminals so that bleeder resistance work for you to discharge the charge stored in capacitor C1.}

Calculations:

If we use 2uF/400V(because it is readily available in the market) THEN :


the capacitive reactance offered by capacitor(2uF/400V) connected at mains supply is:
x= 1/(2*pi*f*c) where pi is 22/7, and f is the frequency of mains supply eg 50Hz or 60Hz
then
now reactance or impidence ( or simply resistance) of whole ckt is = sqrt(R+x) where R is the resistance or load and wires all together attached in circuit and sqrt means squareroot of (R+X)
now out put current i=(v/z) where v= mains voltage 220v or 111v
So you can now calculate the capacitance of circuit according to the required current.


If you want to increase the output current just simply increases the capacitance value of C1 or just by Adding more C1 together in parallel if you are unable to find the appropriate value capacitor in market.


The C2 here only used as a filter to reduce the ripples in the output waveform.( it acts as filter to smoothen the output DC desired.)


Z1 is zener to protect the appliances from overvoltages.


If you want to decrease the voltage rating just use appropriate zener diode

If you wanted to increase the voltage rating of the circuit to double just use doubler circuit to double the voltage but the catch is that the current will become half and frequency become twice means 120Hz. so according to your requirement just increase the output DC current by simply adding high capacitance capacitor or add more C1 in parallel if you need high output DC voltage


For capacitance C1 related calculation problems or any problem regarding this explained circuit please reply in comment section and i will be happy to help by reply ASAP.


If you find above circuit interesting or useful please share it will be our reward from your side.

 Thank you for Reading.