Docstoc

pulse transformers it series pulse transformer with double

Document Sample
pulse transformers it series pulse transformer with double Powered By Docstoc
					Pulse transformers IT series Pulse transformer with double secondary winding

■

■ ■ ■

Galvanic separation of drive and power circuit Voltage resistance up to 4kV Ignition current up to 1A Turns ratio up to 3:1:1

Approvals

Technical specifications
Nominal operating voltage: Operating frequency: Ignition currents: Rise time: Test voltage: Max. partial discharge voltage: Temperature range (operation and storage): Flammability corresponding to: Up to 500V 40kHz max. 500kHz max. for data transmission 0.1 to 1A @ 40°C 0.4 to 4.0μs Up/50Hz/2s max. according to VDE 110b 1.5 x Unom -25°C to +70°C (25/70/21) UL 94V-0 listed materials

Typical electrical schematic

prim.

sec.

sec.

Features and benefits IT pulse transformers are designed to offer you galvanic isolation for transformer coupled gate drives. The IT series provides negligible delays and the possibility of voltage scaling. They are available with single or double secondary winding for multiple gate drives. Choosing the IT product line brings you the rapid availability of a standard gate drive transformer. A wide selection on turns ratio, ignition current and voltages are designed to offer you the desired standard product.
■ ■ ■ ■ ■ ■ ■

Typical applications
■ ■ ■ ■ ■ ■ ■

Galvanic separation with secondary winding. Voltage resistance up to 4kV. Allows high potential difference voltage scaling. Vacuum potting. Very low partial discharge effects. PCB through hole mounting. Custom-specific versions on request.

Gate drive circuit Power supplies Power converters Frequency converters Switching applications DC/DC converters Line coupling transformers in high-speed data transmission

> Components > IT series

Pulse transformer selection table
Pulse transformer Turns ratio Ignition current Iign [A] 0.025 0.1 0.1 0.1 0.25 0.25 0.25 0.25 1 0.25 0.1 0.1 0.25 1 Voltage Unom [V] 500 500 500 500 380 500 500 380 380 500 500 500 500 380 Up [kV] 4 4 3.2 3.2 2.5 4 3.2 2.5 2.5 3.2 4 3.2 4 2.5 Voltage time area V0t [Vμs] 800 600 250 250 450 300 160 1200 450 330 600 200 280 500 Rise time tr [μs] 0.6 1.4 0.9 1 0.4 1.3 1.3 1 0.6 4 1.3 0.7 1 1 Inductance Lp [mH] 15 9 2.5 2.5 6.5 3 1.1 21 3 17 75 15 17 35 Resistance Rs [Ω] 3 1.5 0.75 0.8 1.4 0.8 0.55 2.7 0.4 1.5 2.2 0.9 0.7 0.7 Coupling capacitance Ck [pF] 10 10 7 7 40 7 6 30 27 9 9 9 9 30 Input/Output connections Weight

IT IT IT IT IT IT IT IT IT

143 153 242 243 213 233 253 312 313

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 Rp [μH] [Ω] 200 3 120 1.5 75 0.75 85 0.8 20 1.4 45 0.8 45 0.55 35 2.4 6 0.33 140 180 70 40 20 3.1 7.5 2.8 2 1.6

02 02 02 02 02 02 02 02 02 02 02 02 02 02

[g] 14 14 6 6 9 13 6 24 24 6 14 6 13 25

IT 249 IT IT IT IT 154 244 234 314

Explanations: – – – – tr rise time at given load resistor R and 70% of the output pulse height. Lp primary inductance measured at 1kHz (secondary coile open). Lstr stray inductance measured at the secondary side, short circuit at the primary side. If there are several secondary coils only one at the time is connected (measuring frequency 10kHz). The ignition current is a set peak value where the voltage drop over the coil resistance is still insignificant (mostly below 1V).

Mechanical data IT 213
1 3 2 1 2 Prim. 3 6

IT 243, IT 244, IT 249, IT 253
A L
5 5 6 Prim. 3 1 4 2

H

4 5 6

G

A

E
6

H
4

L
4 2 3 1

5

B

E

H

H C

F D

K I

G

F C D

IT 242
A L
6 5 5 3 6 4

IT 143, IT 153, IT 154, IT 233, IT 234
A L L
Prim. 1 3 5 2 4 6 2 1 Prim. 3 5

H K I
4 2 3 1

B

E

H H I

L

B E F

4 6

1

2

G

F C D

G

C

D

IT 312, IT 313, IT 314
A K
3 4 5 6 4 5 Prim. 3 2

H H I

2 1

L L

B

E
6 1

F C D

G

> Components > IT series

Dimensions
IT 213 IT 243 IT 244 IT 249 IT 253 IT 242 IT 143 IT 153 IT 154 IT 233 IT 234 IT 312 IT 313 IT 314 Tol.

A B C D E F G H I K L
* Tolerance is ±0.2

Ø19 20 5 0.45 1 10 5

17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2

17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2

17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2

17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2

17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2

27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 2.5

27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 2.5

27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 2.5

27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 2.5

27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 2.5

25.5* 25.5* 25* 5 0.5 0.5 15 7.5 5.25 5 3

25.5* 25.5* 25* 5 0.5 0.5 15 7.5 5.25 5 3

25.5* 25.5* 25* 5 0.5 0.5 15 7.5 5.25 5 3

±0.1 ±0.1 ±0.1 +1/-0

±0.2 ±0.2 ±0.2

All dimensions in mm; 1 inch = 25.4mm Tolerances according: ISO 2768-m / EN 22768-m

Your local partner: To find your local partner within Schaffner’s global network, please go to www.schaffner.com

May 2008


				
DOCUMENT INFO
Shared By:
Stats:
views:139
posted:12/18/2009
language:English
pages:3
Description: pulse transformers it series pulse transformer with double