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IEEE 390-1987

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IEEE Standard for Low Power Pulse Transformers

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New IEEE Standard - Inactive-Reserved. Pulse transformers for use in electronic equipment are considered. This standard applies to the following transformer types: power output (drivers), impedance matching, interstage coupling, current sensing, and blocking-oscillator transformers. For these transformers, the peak power transmitted ranges from a few milliwatts to many kilowatts, and the peak voltage transmitted ranges from a few volts to many kilovolts. Symbols, performance tests, equivalent circuits, preferred test methods, marking, and service conditions are covered.
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 uni polar or bipolar pulses of voltage or current within specified tolerances of amplitude and time when operated between specified impedance. 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
The purpose of this standard is to provide a common ground between electronic system engineers and pulse transformer design engineers. This standard does not apply to transformers when used in a wire entrance facility to an electric power station. Neither is it intended to include low-power switching-type pulse transformers. These are covered in IEEE Std 272 1970, IEEE Standard for Computer-Type (Square-Loop) Pulse Transformers. This standard pertains to pulse transformers that transmit peak power that averages from a few milliwatts to those that transmit peak power that averages in the kilowatts. Also, the voltage range is from a few peak volts to many peak kilovolts.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 390
Publication Date Oct. 14, 1987
Language en - English
Page Count 32
Revision Level
Supercedes
Committee Standards Committee
Publish Date Document Id Type View
Oct. 14, 1987 390-1987 Revision
June 18, 1975 390-1975 Revision