Introduction: 10 Year Led Flasher (Version 2 With Boost Converter)
This LED flasher will blink for 10 years on a single 1.5v AA cell. My previous circuit used a blocking oscillator to generate the Vdd voltage for IC1. This circuit relies on a BOOST CONVERTER configuration (inductor-diode-capacitor) . Output voltage is high enough to drive at least 5 leds series-connected.
Step 1: 10 Year LED Flasher (V.2) at Work
Step 2: Circuit Diagram
Step 3: Astable (flash Rate)
Step 4: Monostable (pulse Width)
Step 5: Transformer
Step 6: Boost Converter
Step 7: T1 Secondary
Step 8: Start-up
Step 9: Managing Energy
Step 10: Current Drain
Step 11: For More Details and Waveforms, Watch Video
DeanH25 made it!