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   Solar is a renewable source of energy, while solar cells are cells made up of photovoltaic cell driven by sunlight to produce energy. Solar panels are collections of solar cells, so solar panels come in different types and shapes. When we are talking about solar powered car, don't it sound interesting to you. You could just start buik

      Table of contents 1.definition 2.components 3.Construction 4definition We all know what a quadcopter is but you cannot just start building your own without proper definition,a quadcopter is a multi rotor helicopter propelled by four rotors.       Parts of a basic  quadcopter includeinclude. 1.frame frame is the main work of your copter you can design how you want your frame to look like, a frame contains the drone electrical components it has centre where you mount the electrical components .four arms extended from the centre ,most frame are produced from wood,aluminum  and carbon. 2.a brushless motors differentiate from a conventional DC motors in that it does not have brushes rather it relies on coil and magnets to power the shafts brushless motors come in different types size and consumption. 3.propeller  are types of fan that transmitt power by converting rotational motion into thrust. 4.electronic speed controller.it gives out high frequency signals to keep the dro

  First today we will be looking at what is an inverter , an inverter is any device that converts direct current to alternating current. We have different types of inverter, sinewave, modified sine and square wavewave. 1.sinewave is whatever you get from your local utility company usually a generatorgenerator. Some appliances like motors,microwave ovens require sinewave. 2. Modified sine wave has a wave form more like square wave equipment like motors fans pump will work fine with modified sine wave. 3.square wave inverter will run simple things like tools with universal motors without problem.   So today we will be looking at how to construct 12v to 220v 100watts inverter ,but first we will look at what is watts a watts is simply the voltage times the amperes if a device draws 20 amperes at 12volts it is 240 watts.   Components. 1.resistor 680 ohms x2. 2.resistor 12k ohms x2. 3.step up transformer centre tapped 12v to 220v. 4.12 v battery. 5.2n2222 transistors x2. 6