IEEE 272 1970
$26.54
IEEE Standard for Computer-Type (Square-Loop) Pulse Transformers
Published By | Publication Date | Number of Pages |
IEEE | 1970 | 16 |
New IEEE Standard – Inactive – Withdrawn. This standard pertains to computer-type pulse transformers. These pulse transformers are characterized by their use of a square loop core material as defined below with normal operation into the saturation flux density regions and with typical operation using a specifically defined current input pulse. These transformers exploit the memory characteristic of square-loop core material that makes the output pulse dependent upon the immediate history of the core flux. This type of transformer is used in shift registers, memory across switches, memory readout circuits, transformer logic matrices, and other storage-type devices. It is not the purpose of this standard to include large-scale memories. Wherever numerical requirements are indicated, they may be considered as recommended values. Appendix I contains a core analysis, transformer equivalent circuit, and definitions of associated terms. Appendix II contains definitions pertaining mainly to characteristic testing of computer-type pulse transformers.
PDF Catalog
PDF Pages | PDF Title |
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6 | 1 Scope 1.1 Related Transformer Standards 2 Definitions 3 Symbols 3.1 Cornputer-Type Pulse Transformer Schematic 3.2 Core Analysis 3.3 Input Pulse |
7 | 3.4 Read Response Pulse 3.5 Transformer Parameters 3.6 Source and Load Impedance 4 Performance Tests 4.1 Electrical Tests Ratio of Transformation (Turns Ratio) 4.1.1.1 Alternate Method I 4.1.1.2 Alternate Method 11 |
8 | 4.1.2 Polarity 4.1.3 Electrical Strength 4.1.4 Electrical Strength-Induced Voltage 4.1.5 Direct-Current Insulation Resistance 4.1.6 Characteristic Tests 4.1.6.1 Test Conditions 4.1.6.2 Read Response |
9 | 4.1.6.3 Special liesporises Direct-Current Iiesistance of Windings Direct Capacitance Between Windings 4.1.9 Open-circuit (Distributed) Capacitance 4.1.10 Short-circuit Inductance 4.1 I 1 Open-circuit Inductance 4.1.12 Saturation Inductance 5 Marking 6 Computations 7 Service Conditions 8 References |
10 | Core Analysis Equivalent Circuit and Partial-Switching Characteristics |
12 | Appendix I1 Definitions of Terms |