Standard: IEEE 111

STANDARD FOR WIDE-BAND (GREATER THAN 1 DECADE) TRANSFORMERS

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Scope:

General

This standard pertains to electronics wide-band transformers transmitting power within a wide band of frequencies covering typically at least one decade in the frequency spectrum. It is not intended to apply to transformers optimized to operate within a narrow band of frequencies. Transformers used in, or in conjunction with, wire line communication facilities serving power stations are excluded due to the special protection requirements involved. Provision is made for including data for use in the design of feedback amplifiers and control networks, or other circuits in which the knowledge of the transformer amplitude and phasefrequency response is needed by the system designer. These transformers are required to transform voltage within specified tolerances of amplitude and phase when operating between specified impedances. Guides to application and test procedures are included. The annexes within this standard contain certain precautions and recommended practices.

This standard also pertains to hybrid transformers, primarily used in the telecommunications industry. The hybrid transformer is a wide-band transformer used in a manner which makes it part of a capacitance, resistance, and/or inductance network, and it must have characteristics which permit it to match the network for proper overall performance.

Organization: The Institute of Electrical and Electronics Engineers, Inc.
Document Number: ieee 111
Publish Date: 2000-03-08
Page Count: 49
Change Type: REAF
Available Languages: EN
DOD Adopted: NO
ANSI Approved: YES
Most Recent Revision: YES
Current Version: YES
Status: Active

Document History

Document # Change Type Update Date Revision Status
IEEE 111 Change Type: Update Date: 2000-03-08 Revision: 00 Status: INAC
IEEE 111 Change Type: Update Date: 1984-06-12 Revision: 84 Status: INAC

Standards That Reference This Standard

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