Tag Archives: LED Circuit

Low-Dropout, Constant-Current Triple White LED Driver

Posted on October 2, 2010 by Rust

In conventional white LED design, the Max1916 low-dropout bias supply for white LEDs is a high performance alternative to the simple ballast resistors. A single resistor is used by this device to set the bias current for three LEDs, which … Continue reading →

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Sound Controlled Activated Triggered LED

Posted on August 2, 2010 by Rust
SOUND TRIGGERED LED

When the microphone detects a loud sound, this circuit will turn the LED on. The “charge-pump” section consists of the 100n, 10k, signal diode and 10 uF electrolytic.   Here is the schematic diagram of the circuit: The charge pump section … Continue reading →

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Blinking LED Emulates Incandescent Bulb

Posted on July 15, 2010 by Rend
FADING LED

This is flashing LED circuit emulate the turning of incandescent lamp.  The characteristic of incandescent lamp is that they can’t abruptly change the luminosity. This circuit is used to fade in and fade out the on and off state change.   … Continue reading →

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