Free electronic circuit design and schematic diagram
This is how to test a diode video tutorial. This video shows how to test diode using multimeter. First, put the positive probe of multimeter on anode and negative probe on the cathode, then check the value on multimeter. After that, put the positive probe of multimeter on cathode and negative probe on anode, then check the value shown on […]
Read moreThis is video tutorial about how to test high voltage diodes. This video shows step by step how to test high voltage diodes. Arrange the diode like the schematic in this video. Connect DC power supply on the input. If the voltage is 6V to 10V the diode is good and connected in the right direction. If the voltage is […]
Read moreThis is video about diodes in circuits and testing them. In this video, the diodes is tested in two ways, using simple circuit and using multimeter. The diodes in this video is configured in two ways, forward bias and reverse bias. In the forward bias configuration, the diodes allow the current through them, and in the reverse configuration, the diodes […]
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This is simple 2N3055 Variable power supply circuit. This circuit has some advantages such as it it can deliver an output voltage between 1,5 V and 15 V with a 500 mA maximum current and low production cost. If the current consumption do not exceed 350 mA, the circuit has stabilization of better than 2%. Here is the circuit: The […]
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This is a simple 220V power interface circuit. This circuit used as interface for monitoring electric devices and equipments using a computer. The circuit only senses whether the device being monitored is turned off or on. The galvanic isolation between the AC main line being monitored and the interface to the computer is an important aspect of the circuit. We […]
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This is Resonant Mode LED Driver circuit. This circuit is used to give a constant DC current through a string of a given number of LEDs. This circuit uses flyback, boost, or buck topology. Each of them has disadvantages and advantages depending on the number of LEDs being driven in series, the LED output current, if dimming is required, if […]
Read moreThis is a video tutorial about milling PCB using Altium Designer. This video tutorial shows step by step how to milling the PCB using Altium Designer. The Altium Designer can be used to milling PCB automatically. First, we must provide the circuit, then use the scripting system provided in Altium. Then choose the script and run it. Then export the […]
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