Fading LED by LM358

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This circuit uses op-amps to obtain a triangle wave. The triangle wave causes the Led to slowly get brighter and then slowly get dimmer until it isn’t producing any light. It then gets slowly brighter again. With the components shown each cycle takes about 4 seconds. The capacitor and the 4.7M resistor are the timing components. The circuit works best when a high brightness Led is used.
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This entry was posted on Friday, April 25th, 2008 at 8:11 am and is filed under LED Flasher, Lighting. You can follow any responses to this entry through the RSS 2.0 feed.