Skema Smps Bridge Free From All

Please is there any practical hand book u can refer me to Reply Swagatam says No Problem Vayem, you can ask your questions here, Ill try to solve them.

Circuit Operation Generally SMPS topology involves some fixed standard stages and criteria.

Thgey may be listed in the following manner: The first stage which is the input stage incorporates an obvious mains rectifiers stage, followed a few important protection components.

The above protection components may be in the form of an MOV, or an NTC or both of these for suppressing high voltage transients.

The next stage involves a mosfet based IC in conjunction with the primary of a small transformer for generating the required oscillations.

The IC is normally a state-of -the-art chip having many in built features and abilities.

Further on the secondary of the transformer is clamped with the mosfet IC through a optocoupler which takes the responsibility of controlling the output voltage to a predetermined fixed level.

Skema Smps Bridge Free From All

However the proposed circuit of a cheapest SMPS circuit is rather free from all these complications and employs a very simple configuration.

The two winding on the primary side are so arranged that on switch ON the circuit immediately starts oscillating at around 100 kHz.

The secondary winding typically decides the output voltage and here no optos or zeners are introduced for the sake of simplicity.

Having said that, the circuit may be considered quite crude and therefore in some way might be vulnerable at some point of time in the long run.

Heres another identical simple 220V SMPS circuit design you would like to investigate: Previous: Low Battery and Overload Protection Circuit for Inverters Next: Basics of Strain Gauge Measurements About Swagatam I am an electronic engineer (dipIETE ), hobbyist, inventor, schematicPCB designer, manufacturer.

I am also the founder of the website:, where I love sharing my innovative circuit ideas and tutorials.

If you have any circuit related query, you may interact through comments, Ill be most happy to help Youll also like: 1.

Required fields are marked Comment Name Email Notify me via e-mail if anyone answers my comment.

Search Related Posts for Commenting Search this website Rahul M says MJE13005 is rated for 400 Volt VCEO, at 250VAC the rectified voltage will be 250 sq rt of 2, that will be around 350VDC, on top of that the flyback reflected voltage plus spikes will cause it to go beyond 400VDC.

Reply Mohammad Rostami says Hi I am from Iran please give me the detail of transformer (T1) Reply Swagatam says Hi, it is given in the diagram, use any standard E19 ferrite cores Reply Marian Tk says Oba tie didov mostky, aj vstupn aj na vstupe robia ist skrat.

Nie Reply Vaayem says I constructed a phone charger but it is draining my battery instead of charging it.

What do I do sir Reply Swagatam says Which circuit did you build what is your battery specs where did you connect the battery how much voltage are you getting at the output Reply Vaayem Augustine says I got the circuit on the YouTube.

I was having 4-5v.

I want to charge Infinix note4 android phone.

Thanks for your feedback sir Reply Swagatam says Vaayem, is it an SMPS design or a capacitor based deign Capacitor based design can be dangerous for the battery, phone and the user itselfIt is strange that your phone is accepting the charge but not charging Instead of trying a modified charger why not use a regular phone charger which would also guarantee a safe charging for the phone Reply Vaayem Augustine says Thanks sir, as a beginner, l love electronics and I love building circuits that I see if they can work.

Sorry, I dont know the meaning of SMPS and the difference between capacitor based circuits.

Like how to connect a transistor that it will amplify current.

Skema Smps Full Bridge