Engineering and Technology

  hey friends welcome to the Blog all about electronics in this video we will talk about the electronic oscillator and we will learn about the basic working principle of the oscillator now the electronic oscillators are used in wide range of applications they are used in laptop and smartphone processors for generating the clock signals while they are used in the radio and mobile receivers for generating the local carrier frequency and even they are used in the single donators which is used in the lab to test the circuits so this oscillator accepts the DC voltage and it generates the periodic a signal of the desired frequency now the oscillators can generate the frequencies from few hurts to even gigahertz now the output of the oscillator can be either a sinusoidal signal or a nine sinusoidal signal like a square wave and the triangular wave now in simple dumps this oscillator circuit is nothing but the amplifier which is given a positive feedback so let us understand the working pr...

  One of the most common ways to generate light nowadays is by using a light emitting diode or led like the rest of the diodes as we saw in a previous lessons one of its characteristics is that it only allows the passage of electric current in one direction but we didn't talk about why they emit light so in this lesson we will see how an led works led lights have several features that make them one of the preferred options to illuminate such as having low energy consumption greater impact resistance and a longer lifespan and because of this they are available in many different formats but instead of going directly to analyze an led we will start reviewing how a common diode works because in theory these can also emit light it's just that they do it in an inefficient way if we have a circuit with a lamp and a power source energy will pass freely this is because electrons can move freely between metal atoms and when connected to the power source they are forced to move by adding ...