Why Transformer Uses in Applinces?

What is the Function of a Transformer in Appliances?

Most of us, we of-course observed that their the is used a transformer in appliances. In general senses we know this transformer is need to supply the power to the appliance, literally it transform the grid voltage (230 or 110V) into the required lower level voltage like common 6V, 9V, 12V or 24 V that is then rectified into dc voltage and regulated to make the internal power for the appliance.
Most of appliance' s transformers are step-down transformer, means it receive 230 Volt (in some countries 110 Volt) grid voltage and step down the voltage level as required 6, 9, 12, 24 or 48 Volt dc using rectifier circuit.
On the reverse, some appliances or some part of appliance need higher level of voltage than grid voltage (230 or 110 Volt), like- microwave oven, old version television, school vantage vacuum tube audio amplifier etc. So, to generate high voltage for appliances, transformer is used.
But in some cases this transformer is neither step up nor step down, it is just 1:1, means transformer that is used to add a galvanic separation between the appliance and the ground while the appliance is running on nominal 230V or 110V grid voltage. 
In such a case, if you touch any one of the output wires, the circuit is not closed to the ground and the source because there is no any single live wire, so in this case no one shocked if touch any of the output wire. But if any one touch both output wires at the same time will get shocked !

Impedance Transformer:

Some time transformer is use in appliances to match the impedance, not for power supply; typically have an output audio transformers to match the higher output impedance of the tube with the lower impedance of the loudspeakers. 
Some time transformer uses as inductance for industrial harmonic filter circuits. If you interested to know about- 


DC Separation Transformer:

Sometimes transformer uses for DC voltage separation which isolate the anode high voltage from the output voltage.
In conclusion we can say transformer is used for changes the input AC voltage in the primary to an AC voltage in the secondary that results in the required DC voltage for the appliances, voltage may need up or down and it has various types like-multi-tap, step-up, step-down etc. Transformer used for voltage up or down depending on our need , if we required 12v for our device and grid gives 230V then here we can used transformer for step down voltage, multi-tap trans gives various voltage such 6V, 9V, 12V ,24V & so on.
Quite often the transformer secondary has multiple winding that can be tapped for different AC input voltages that makes the transformer more versatile and cost effective. 


  1. Awesome issues here. I am very happy to see your article. Thanks so much and I am looking ahead to touch you.

    Will you please drop me a e-mail?

  2. I think what you posted made a lot of sense. But, what about this?
    suppose you composed a catchier title? I mean, I don't want to tell you how to run your blog, however suppose you
    added something that makes people desire more? I mean "Why Transformer Uses in Applinces?" is a little vanilla.

    You should peek at Yahoo's front page and note how they write post headlines to
    get people to click. You might add a video or a pic or two to get readers
    excited about everything've got to say. Just my opinion,
    it would make your blog a little livelier.

  3. It's going to be finish of mine day, except before ending
    I am reading this impressive article to increase my experience.

  4. What i don't realize is in reality how you're now not really much
    more smartly-liked than you might be right now. You're very intelligent.
    You realize therefore considerably when it comes to
    this matter, produced me for my part imagine it from so many varied angles.
    Its like women and men are not fascinated until it's something to accomplish with Woman gaga!

    Your own stuffs great. All the time take care of it up!

  5. It supports localization so that you can use the theme in your local language. If you want to get more interesting details about seo company, visit this site.

  6. One, it's among the simplest and user-friendly ovens in the marketplace. Get more interesting details about cordless irons on this site.


Thank you very much to visit and valuable comments on this blog post. Keep in touch for next and new article. Share your friends and well-wisher, share your idea to worldwide.

You may like the following pages