Nokia Lumia 520 Review and specifications

Nokia Lumia 520 Review and specifications:

Review:

The Nokia Lumia 520 a Windows phone 8 is a super affordable smatphone, so it offers the smartphone experience to those who are either unable or unwilling to spend amounts of money on new phone but who are still after a reliable smatphone experience.



On its design it is best Nokia's phone when we are talking about design.It is comfortable and fits snugly in the hand and doesn't have any uncomfortable ridges that would make holding it to the face less enjoyable moments.

The Lumia 520 is fast, smooth and generally handles things and best smartphone i ever seen from nokia. It has great resolution of about 480 x 800 for the phone in this price range

Circuit diagram of 9 volt regulated power supply using 7809

 Circuit diagram of 9 volt regulated power supply

Hello Every one today i m gonna give you current diagram of power supply which is regulated means without any frequency. A pure DC supply using following components.
To know how to convert AC in to DC check this post AC in to DC

• 9 volt and 2 amps transformer
• 2A rectifier bridge or you can we 4 diodes of 1N4007
• 50 volt 470uf capacitor
• two non polar capacitor of 0.01uf ceramic
• Regulator IC 7809 with heat sink

Here is a Pin configuration of 7809 IC

Why does voltage lead current in an inductor?

Why does voltage lead current in an inductor?

In inductor is an electrical component which stores energy in the form of magnetic flux. In its structure, it is made up of wires like copper wire in the form of coil around a medium.

When voltage is applied to inductor it causes current to flow through the coil of inductor as a result causes flux from each turn of coil.

HTC Desire 600 dual sim full specification, review and announced date

HTC Desire 600 dual sim full specification, review and announced date

Hello Friends:
As you know HTC is making room in smartphone market by recent years competing Samsung, Nokia and Other smartphones. Recently with its HTC Desire has brought the company the huge success in Android Phone market.Now HTC has officially announced with sense 5.0 and june release
HTC wants to add more smartphones to its Desire range of smartphones with improving in its technology now it has released HTC Sense 5.0 Android overlay.

PID controller and Antenna Azimuth

Introduction:

PID is the combination of different function for controlling devices in control system engineering. Most important of them are proportional, integral and derivative function that’s why it is named as PID. They are used in controlling various industrial instruments automatically like flow rate, temperature, pressure, position controlling in azimuth antenna.