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Pulse Transformers Impulstransformatoren Transformateurs d'impulsion
www.schaffner.com
SCHAFFNER
Pulse transformers
CONTENTS
General information Introduction.2 Test voltages.2 Explanations abbreviations.2 Product selection chart.3 Products Pulse transformers with single secondary winding Technical specifications.4 Mechanical data.5 Pulse transformers with double secondary winding Technical specifications.6 Mechanical data.7 Products services.8 Contact addresses
INHALT
Allgemeine Informationen Produkt-Auswahlkarte.3 Produkte Impulstransformatoren einer Technische Spezifikationen.4 Abmessungen.5 Impulstransformatoren zwei Technische Spezifikationen.6 Abmessungen.7 Produkte Dienstleistungen.8 Kontaktadressen
TABLE MATIERES
Introduction.2 Tensions d'essai.2 Explications techniques.2 Tableau produits.3 Produits Transformateurs d'impulsion avec bobine secondaire techniques.4 Dimensions.5 Transformateurs d'impulsion avec deux bobines secondaires techniques.6 Dimensions.7 Produits services.8 Carnet d'adresses
General information pulse transformers
Introduction Pulse transformers have very wide range applications:
Galvanic separation drive power circuit general Igniting thyristors, triacs IGBT's Driving bipolar transistors, preferred main power transistors switching applications Driving Power-MOSFET's, mainly used power switches Line coupling transformers high speed data transmission DC/DC converters Current compensated chokes (1:1 1:1:1) with high stray inductances
Test voltages according Test voltages used Schaffner small transformers around higher than specified table Table
Testvoltage Unom Transformers protection mode choke coils 250V 500V 1'000V 2'500 2'500 2'500 3'000 3'000 3'000
most cases applications have something common: signal (drive pulse) must transmitted from source circuit switching section, which lies different electrical potential (e.g. drive circuit earth potential power circuit mains potential). galvanic separation using pulse transformer simplifies whole circuit protects drive circuit from malfunctioning also from destruction high energy transients which occur power circuit. following technical data show that according field application, values vary over wide range: Open circuit voltage Ignition current Rise time Pulse duration Pulse frequency 10mA 0.25 3.3µs 10kHz data transmission 500kHz
between primary circuit body 1'500 1'000 1'500 between secondary circuit body between primary secondary circuit 1'500
allowed partial discharge voltage types times admissible operating voltage. Explanations abbreviations Iign ignition current peak value where voltage drop over coil resistance still insignificant (mostly under 1V).
Allowed operating voltage Allowed test voltage
voltage time area product pulse height pulse width half pulse height secondary side unipolar mode. measured under load operation. Risetime given load resistor output pulse height. Primary inductance measured 1kHz (secondary coil open). Stray inductance measured secondary side, short circuit primary side. there several secondary coils only time connected. (Measuring frequency kHz). Primary coil resistance (DC) Secondary coil resistance (DC) Coupling capacitance between primary secondary coil.
SCHAFFNER
Product selection chart
Voltage-time area Ignition current 1'000 10'000 Turns ratio
1:1:1
0.01
16.7/17.6 22.5/27 25/25 27/32 50/50
Housing Family size
2:1:1
3:1:1
SCHAFFNER
Pulse transformers with single secondary winding
Galvanic separation drive- power circuit Voltage resistance Ignition current Turns ratio Galvanische Trennung Steuer- Leistungskreis Hohe Spannungsfestigkeit Isolation galvanique rapport circuit puissance Tenue tension Courant Rapport transformation
Technical specifications
Type
Turns ratio
Ignition current Iign
Voltage Unom 1'000 1'000 3'000 1'000
Voltagetime area 1'100 4'000 5'000 3'500 1'200
Risetime 0.25
Inductance Lstr
Resistance 0.16 0.16 0.17 0.14
Coupling capacitance
Weight
364* 362*
0.25 0.25 0.25 0.25
*not suitable PCB-mounting
Pulse transformers with different technical specifications available request. Please contact your local sales office, distributor www.schaffner.com
Mechanical data
245, 246, 248, 258,
155,
Prim.
Prim.
Prim.
Prim.
Prim.
Prim.
scre
Prim.
Dimensions
245, 248, 258, 17.6 16.7 11.3
155,
17.5 12.5
32.2 23.7
Tol.* [mm]
15.3 12.5
22.5 13.7 0.45
*Measurements share this common tolerance unless otherwise stated.
dimensions inch 25.4mm
SCHAFFNER
Pulse transformers with double secondary winding
Galvanic separation drive- power circuit Voltage resistance Ignition current Turns ratio 3:1:1 Galvanische Trennung Steuer- Leistungskreis Hohe Spannungsfestigkeit 3:1:1 Isolation galvanique rapport circuit puissance Tenue tension Courant Rapport transformation 3:1:1
Technical specifications
Type Turns ratio Ignition current Iign 0.025 0.25 0.25 0.25 0.25 0.25 0.25 Voltage Unom Voltagetime area 1'200 Risetime Inductance Lstr Resistance 0.75 0.32 0.37 0.65 Coupling capacitance Weight
1:1:1
2:1:1
3:1:1
Pulse transformers with different technical specifications available request. Please contact your local sales office, distributor www.schaffner.com
Mechanical data
Prim.
243, 244, 249,
Prim.
143, 153, 154, 233,
Prim.
312, 313,
Prim.
Dimensions
143, 154, 22.5 13.7
Prim.
243, 249, 17.6 16.7 11.3 0.45 15.3 12.5
312, Tol.* [mm] 25.5 25.5
*Measurements share this common tolerance unless otherwise stated.
dimensions inch 25.4mm
SCHAFFNER
Further components services from Schaffner
addition offering this comprehensive range pulse transformers, also design manufacture filters chokes which prevent equipment from generating EMI, protect from effects. Following components also available from Schaffner: suppression chokes filters IEC-inlet filters Single-phase filters Feedthrough components Three-phase filters Output filters
obtain latest Components catalogue, please contact your local Schaffner sales office, distributor and/or www.schaffner.com.
testing Schaffner operates most sophisticated test facilities available anywhere today with extensive investment screened rooms, specialized test equipment application engineering teams distributed seven locations throughout world. Services available these locations include:
semi-anechoic chamber open field testing harmonics instrumentation current voltage 49th harmonic emission immunity tests according European international standards (EN, IEC, FCC, CISPR, Mil) Additional services available accredited testing facility Switzerland: full load test set-up motordrives safety testing environmental simulation passive components electromagnetic interference suppression according European, international North American standards
Engineering services Schaffner world's most engineering experience solving problems. addition testing measuring services, Schaffner provide expert engineering support help bring your equipment market quickly efficiently. Services available include:
custom filter design optimize filter performance solve space-, layout-, mounting- connectionproblems circuit equipment design advising circuit equipment enclosure design overcome problems turnkey component design build
Further, Schaffner offers full complement measurement engineering services support equipment manufacturers users.
2000 Schaffner EMV. Specifications subject change without notice. trademarks recognised. Schaffner ISO-registered company. It's products designed manufactured under strict quality requirements 9001 standard. This catalogue sales promotion document. been carefully checked. However, Schaffner does assume liability errors inaccuracies. obtain latest technical datasheets, contact your local sales office.
SALES SUBSIDIARIES
HEADQUARTERS Schaffner CH-4542 Luterbach Switzerland Tel: [+41] 6816 Fax: [+41] 6816 E-mail: sales@schaffner.com EUROLOGISTICS CENTER Schaffner S.A.S. F-68311 Illzach France Tel: [+33] Fax: [+33] 690-065B Benteli Hallwag Druck October 2000 China Schaffner Beijing Liaison Office Tel: [+86] 6510 1761 E-mail: chinasales@schaffner.com Japan Schaffner Tel: [+81] 3418 5822 E-mail: japansales@schaffner.com Schaffner Tel: [+44] 0070 E-mail: uksales@schaffner.com France Schaffner S.A.S. Tel: [+33] E-mail: francesales@schaffner.com Singapore Schaffner Tel: [+65] 3283 E-mail: singaporesales@schaffner.com Schaffner Tel: [+1] 9533 E-mail: usasales@schaffner.com Germany Schaffner GmbH Tel: [+49] E-mail: germanysales@schaffner.com Sweden Schaffner Tel: [+46] 5792 1121 E-mail: swedensales@schaffner.com Italy Schaffner Tel: [+39] E-mail: italysales@schaffner.com Switzerland Schaffner Tel: [+41] 6816 E-mail: switzerlandsales@schaffner.com
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