One-stop solutions of power supplies & battery chargers

Sales & Support
Request A Quote - Email
Select Language
English
Spanish
Home
Products
About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home News

How Is The Mobile Phone Charger Getting Smaller And Smaller? ------ANENPOWER

Certification
Good quality Wall Mount AC/DC Adapter for sales
Good quality Wall Mount AC/DC Adapter for sales
Thanks for your invitation to visit your factory, Nice looking and give me good impression.

—— Mr. Stefan

i like your factory, hope you factory all goes better in the future.

—— Mr. Владимир Николаевич

Fast delivery time, I like it.

—— Ms. Eli

Very pleasure to cooperate with you. and hope we keep in contact, thanks.

—— Mr. Volker Zielke

Professional company, Competitive price, Perfect Quality. We have been working with ANEN for nearly 8 years, and it is really enjoyable to work with them. We will continue to cooperate, thank you!

—— Mr Sauro Bazzani

Nothing I have to say. Just want to do more business with you.

—— Mr Michael Durtnall

One-stop manufacturer of IT, medical, LED and AV switching power supplies. Save our times and cost, PERFECT !!!

—— Mr Andre Pienaar

Condy is a very professional guy and likes to work with him very much.

—— Ms. Elisabeth

A group of professional guys, an almost perfect factory!

—— Mr. Paul Breedon

I'm Online Chat Now
Company News
How Is The Mobile Phone Charger Getting Smaller And Smaller? ------ANENPOWER
How Is The Mobile Phone Charger Getting Smaller And Smaller? ------ANENPOWER

 

Careful friends will find that since the birth of the mobile phone, the mobile phone has become thinner and lighter, and the size of the mobile phone charger is getting smaller and smaller. So how is this technically achieved?

 

 

Previous chargers used a linear regulated power supply, usually requiring a bulky transformer, first dropping the voltage of 220V and then charging the circuit with a transistor. Since the operating frequency of this transformer is 50 Hz, the transformer must have sufficient inductive reactance, which means that it is bulky. Therefore, the volume of the previous charger is mainly limited by the transformer, and the previous transistor and the resistive container are relatively large in volume, which also accounts for the volume.

 

 

The current charger adopts switching power supply technology, which can directly rectify 220V, then cut or turn on the rectified voltage at a certain frequency to obtain an approximate square wave signal, and finally obtain a stable low voltage by using negative feedback and smoothing filtering. The source eliminates the bulky transformer. Of course, the switching power supply also has a transformer. However, since the switching frequency of the switching power supply is much higher than 50 Hz, the required transformer inductance is small, and the volume of the transformer can be made small. In addition, the current devices are miniaturized, and the circuit can be made small.

 
 
Therefore, the use of switching power supply technology, the elimination of large-volume transformers; the use of small devices to reduce the size of the circuit, the two chargers, the size of the charger is much smaller.
 
Pub Time : 2018-11-03 15:15:49 >> News list
Contact Details
ANEN Enterprise Limited

Contact Person: Mr. Chow

Tel: 86-176-0307-3737

Send your inquiry directly to us (0 / 3000)