If you want simple meter the intensity of the light in a simple way. This circuit is very interesting, because with a LED display with 5 levels.The main equipment is uA741 the most popular op-amp circuit, to used the photo transistor is a device for receiver a lighting to change is electricity very low. We [...]
From originally at we use light ordinary bulb gives the light but get into trouble about useful short life and about using electric energy very. In contain divide us can use LED at have many brightnesses specially pay back a light bulb well. Today I then beg for to introduce type circuit that applies to [...]
This circuit is a dimmable white LED lamp array with 18 LED Display. The lamp brightness is regulated as long as the input voltage is above 10.5V. A low-dropout analog voltage regulator is used for a simple and relatively efficient design. The lamp produces enough light to use as a a reading lamp or a [...]
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