Many electronic devices make use of motor for its usage so in order to do it perfectly we need a circuit which could control the motor speed precisely.Here is a circuit which is capable of controlling a 12V DC motor.This circuit uses a IC LM2941CT which is a low drop out 1A voltage regulator.This regulator IC posses many cool features like power supply reverse protection, thermal protection, short circuit protection etc.The maximum output current IC can be around 1A.Now lets see the working of this circuit and how it was used to control the motor speed.
Tablets has started to overflow in the gadget market now a days carrying unique features adapting the user.Barnes & Noble's Nook HD+ tablet adds to the line up.Barnes & Noble's Nook products are known for less expensive, well working and other compelling features like e-books,digital magazines.The all new Nook HD+ was the successor of the Nook tablet which came to the market last year.The base model of the NOok HD+ costs $270 costs very less than the other tablets in the market.Another great thing about the device is that it is very light weighing 18 ounces it seems to be 20 percent lighter than the iPad.It comforts you for watching movies for ling hour sgiving you great comfort.
Lets look into the specifications of all new Barnes and Noble's Nook HD+.
The working of IC NE555 was very important to know since it was widely used in many applications.The IC 555 was widely used for producing delays,oscillators and much more.The working of IC 555 was based on the internal components as you can see in the diagram above.It consists of Comparator,Flip flop and transistors which maks this IC work.Now lets see the working of this IC.
This is a very simple circuit which was used to detect the Electromagnetic field which was around us.The principle behind this circuit was mutual induction whenever a EMF was near a inductor mutual inductance takes place and due to this mutual induction it results in a voltage in the inductor.Using this induced voltage the EMF field was detected.Lets see the working of this simple circuit.
