Free Simple Circuit Diagram
This is Single Cell LED Flashlight circuit. This circuit uses white LED that has best power-efficiency combination at about 20mA and requires abut 3.3V. Each Led in this circuit draws power about 66mW. This circuit uses seven LEDs. This circuit very useful for a tiny pocket flashlight because the whole array of leds run at close to one half watt. […]
Read moreThis is a Low-dropout (LDO) Regulator circuit, constructed by using only a single PNP transistor. This circuit is directly related to load current. At very low values of load current as little as 50 mV. This circuit has maximum specified dropout voltage about 0.7V to 0.8V at full current and typical values around 0.6V. Compared with the other regulator types, […]
Read moreThis is a video tutorial about how to use a volt-ohm meter safely. This video describes about properly use and safety use a voltage meter. First, we must make sure the voltage meter is set up to volts. The black wire is always on the left side and the red wire is always on the right side. If we want […]
Read moreThis is a how to use a clamp meter video tutorial. This video shows the example of use of clamp meter. Clamp meter is a tool that can measure the current without connecting on the wire. So we can measure the current without interrupting the operation in the circuit. In this video, a clamp meter is used to measure current […]
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