Brushed DC Motor Basic Part 1 – Video Tutorial

This is a video tutorial of Brushed DC Motor Basic Part 1. This video talks about the basic of Brushed DC Motor and principles of operation of four types of Brushed DC Motor. Brushed DC Motor is consist of Stator, rotor, brushes and commutator. The stator is used to generate a stationary magnetic field that surrounds the rotor. The principles […]

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PWM – Video Tutorial

This is a PWM video tutorial. This video talks about the PWM and how to use it. The PWM can be used  to dim the LEDs or control DC motor speed. By changing the width of the pulse, we change the average voltage. Usually, to generate the PWM we use the function generator. However we can build a simple PWM […]

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How to Control DC motor – Video Tutorial

This is a video tutorial of DC motor control. This video shows how to control the DC motor speed. In this video, speed of the DC motor is controlled by changing the power supply. Increasing speed can be done by increasing the voltage, and decreasing the voltage will decrease the speed of DC motor. Here is the video : To […]

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How to Make A PCB – Video Tutorial

This is a video about how o make a PCB. This video shows step by step in making a PCB. There are 13 step in making a PCB they : 1. develop schematic sing eagle layout editor 2. Convert to board layout 3. Optimize board layout 4. Print layout to peel-n-press paper using laser printer 5. Clean copper clad PCB […]

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Light Switch Wiring – Video Tutorial

This is a video about light switch wiring. Light switch wiring is easy, but remember to turn off the circuit breaker to prevent the electric shocking. The switch has two screws and the green grounding screw. Connect the the wires on the two screw and the bare ground wire to green ground screw. Here is the video:

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