Recent content by ecreek

final app would b what is already on the market...scanning dot matrix indicator signs. this is mostly a project for therapy reasons...just as my occasionally repairing an analog tv to keep in practice. on an aside, over the years, i have noticed that if i flick my eyes from side 2 side while...

let's say i go with 150Hz. any thoughts on duty cycle? if i pulsed 20ma at 5% d cycle, would the led appear as bright as it would with 20ma steady DC current?

if a 20ma rated led is pulsed at 20ma, how often (frequency) would it have to be pulsed to maintain the illusion that it is on continuously? or do i have to pulse it harder (>20ma) to give the illusion?

You might try stacking 38v on another 38v if the ground on the upper can be floated. Let us know if you solved the problem.

Underwriters Labratory. They test products to insure that they are safe to use. Costs money.