3
Views
0
CrossRef citations to date
0
Altmetric
Original Article

Technical note: A mains drop-out simulator

Pages 224-225 | Published online: 09 Jul 2009
 

Abstract

During an investigation into mains-borne and radiated interference in the Ultrasound Department al St James's University Hospital, the need arose to determine the susceptibility of some equipment to the mains supply failing for very brief periods. This is known as ‘drop-out’. A circuit was built that can drop out the mains supply lo a piece of equipment for up to 15 consecutive half‘cycles at a selectable repetition rate between approximately 0–4/s to 6.5/s. Circuit design was simplified by using a solid state relay (SSR), which turns on and off only at the zero crossing points in the mains supply waveform.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.