Voltage direction indicator

116

01:47:56

It indicates the direction of the voltage, even low voltage. 
RED LED--------POSITIVE DIRECTION 
BLUE LED------NEGATIVE DIRECTION 

published 12 years ago

iscuba

12 years ago

I like it!

rbrtkurtz

12 years ago

1) Just hook it up to AC and it blinks back and forth by itself. I'm too lazy to flip a switch. =) 2) What are the input limits? Again, I'm lazy. I could figure it out myself, but you could just tell us, too. =) Great work, as always mi amigo.

Voltransistor

12 years ago

Thanks, amigos! Lol.

rbrtkurtz

12 years ago

Actually, at first glance it looks like if you changed that 10K resistor at the input to a meg, it would work in the .1W to 1000W range pretty well, without putting any serious load on the transistors. I guess you could always use power transistors...

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.