Just as transistors replaced vacuum tubes a generation ago, another solid-state device – the LED – is replacing other electric components in glass containers – incandescent and fluorescent lamps. LEDs ...
Keeping low-voltage outdoorlights illuminated takes some effort.Bulbs burn out, and connectionscorrode. HB LEDs (high-brightnesslight-emitting diodes) seem like acceptablereplacements, but most are ...
Let’s say you want to blink an LED. You might grab an Arduino and run the Blink sketch, or you might lace up a few components to a 555. But you needn’t go so fancy! [The Design Graveyard] explains how ...
Schematic and operation of a capacitorless active-matrix micro-LED pixel, where a single memristor (1M) substitutes both the storage capacitor and the driving TFT. The compact 1M cell can be ...
This voltage-booster circuit for driving one or more white LEDs uses a 555 timer as its main element (see the figure). The timer, IC1, functions as a resettable astable multivibrator where R1, R2, and ...
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