Members Only

Article

AC Power Indicator

(Summer Circuits 2010 article)

The AC powerline indicator presented here has a complete galvanic isolation from the grid. The indicator is an LED that lights up when a current flows, although the current can be measured more accurately with an AC voltmeter set to its mV range. The detector is a transformer taken from an old mobile phone charger. The value of the secondary isn’t important because we only make use of the primary 230 V (115 V) winding.

Log in here as a subscriber to read the article.

This is a MEMBER ONLY article. You need a subscription to read this article.

Benefits of a subscription

Unlimited access to online Member Only articles
3 new editions Elektor Magazine (digital)
More than 5000 Gerber files
20% member discount on e-books (at elektor.com)
10% member discount on Products (at elektor.com)

View the offers
Available from €5.33 per month.

What is Elektor Exclusive?

Discussion (0 comments)

Embed Code