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IEEE 390

87th Edition, December 11, 1986

Complete Document

Standard for Pulse Transformers

Includes all amendments and changes through Reaffirmation Notice , September 26, 2007


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Description / Abstract:

This standard pertains to pulse transformers for use in electronic equipment. For the various types of these transformers, the peak power transmitted ranges from a few milliwatts to kilowatts; and the peak voltage transmitted ranges from a few volts to many kilovolts.

These transformers are required to transmit unipolar or bipolar pulses of voltage or current within speciÞed tolerances of amplitude and time when operated between specified impedances. They are typically used as coupling devices in electronic circuits. In blocking oscillators, they are connected to provide positive feedback in the circuit. In radar or similar use, they are used to couple the modulator to a magnetron, a klystron, a traveling-wave tube or a cross-Þeld amplifier load.

Whenever numerical values are indicated in this standard, they may be considered as recommended values. Section 6. describes the preferred transformer test methods and Appendix A contains alternate test methods.