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Browse Prior Art Database

Ac Isolated Secondary Voltage

IP.com Disclosure Number: IPCOM000061920D
Original Publication Date: 1986-Aug-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Milewski, M: AUTHOR

Abstract

This article describes a circuit arrangement for taping the resonant secondary winding in a ferro transformer at the desired secondary voltage required.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

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Ac Isolated Secondary Voltage

This article describes a circuit arrangement for taping the resonant secondary winding in a ferro transformer at the desired secondary voltage required.

The dielectric strength voltage potential between primary and secondary voltages in power isolation transformers sometimes does not meet INTERNATIONAL ELECTROTECHNICAL COMMISSION (PUBLICATION 380) requirements of 3750V dielectric strength voltage. order to use 1500V dielectric strength voltage transformers in products and not degrade a higher internal safety standard, the circuit arrangement disclosed herein presents a solution to the problem if an approved ferro transformer is present within the product.

The ferro transformer has a resonant secondary winding that has AC root mean square (RMS) voltage present as shown in the drawing. It is assumed that the required dielectric strength potential between the primary and secondary windings is present in an approved ferro transformer. By taping the resonant winding at the desired AC secondary voltage required, the safety requirement is also met. Since the secondary is a regulated output, normal Å10 percent line voltage or similar AC voltage requiring a regulated AC voltage is met.

Disclosed anonymously.

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