Galvanic separation drive power circuit Voltage resistance Ignition cu
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Pulse transformers series Pulse transformer with double secondary winding
Galvanic separation drive power circuit Voltage resistance Ignition current Turns ratio 3:1:1
Approvals
Technical specifications
Nominal operating voltage: Operating frequency: Ignition currents: Rise time: Test voltage: Max. partial discharge voltage: Temperature range (operation storage): Flammability corresponding 500V 40kHz max. 500kHz max. data transmission 40°C 4.0s Up/50Hz/2s max. according 110b Unom -25°C +70°C (25/70/21) 94V-0 listed materials
Typical electrical schematic
prim.
sec.
sec.
Features benefits pulse transformers designed offer galvanic isolation transformer coupled gate drives. series provides negligible delays possibility voltage scaling. They available with single double secondary winding multiple gate drives. Choosing product line brings rapid availability standard gate drive transformer. wide selection turns ratio, ignition current voltages designed offer desired standard product.
Typical applications
Galvanic separation with secondary winding. Voltage resistance 4kV. Allows high potential difference voltage scaling. Vacuum potting. Very partial discharge effects. through hole mounting. Custom-specific versions request.
Gate drive circuit Power supplies Power converters Frequency converters Switching applications DC/DC converters Line coupling transformers high-speed data transmission
Components series
Pulse transformer selection table
Pulse transformer Turns ratio Ignition current Iign 0.025 0.25 0.25 0.25 0.25 0.25 0.25 Voltage Unom [kV] Voltage time area [Vs] 1200 Rise time Inductance [mH] Resistance 0.75 0.55 Coupling capacitance [pF] Input/Output connections Weight
1:1:1 1:1:1 1:1:1 1:1:1 1:1:1 1:1:1 1:1:1 1:1:1 1:1:1 2:1:1 3:1:1 3:1:1 3:1:1 3:1:1
Lstr 0.75 0.55 0.33
Explanations: rise time given load resistor output pulse height. primary inductance measured 1kHz (secondary coile open). Lstr stray inductance measured secondary side, short circuit primary side. there several secondary coils only time connected (measuring frequency 10kHz). ignition current peak value where voltage drop over coil resistance still insignificant (mostly below 1V).
Mechanical data
Prim.
243, 244, 249,
Prim.
143, 153, 154, 233,
Prim. Prim.
312, 313,
Prim.
Components series
Dimensions
Tol.
Tolerance ±0.2
0.45
17.6 16.7 11.3 0.42 15.3
17.6 16.7 11.3 0.42 15.3
17.6 16.7 11.3 0.42 15.3
17.6 16.7 11.3 0.42 15.3
17.6 16.7 11.3 0.42 15.3
22.5* 13.7 0.45 3.75
22.5* 13.7 0.45 3.75
22.5* 13.7 0.45 3.75
22.5* 13.7 0.45 3.75
22.5* 13.7 0.45 3.75
25.5* 25.5* 5.25
25.5* 25.5* 5.25
25.5* 25.5* 5.25
±0.1 ±0.1 ±0.1 +1/-0
±0.2 ±0.2 ±0.2
dimensions inch 25.4mm Tolerances according: 2768-m 22768-m
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2008
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