EP11 datasheet(15/46 Pages) POWERINT

15 / 46 page

EPR-00011 - 70 W adapter

22-Jan-01

Page 15 of 46

Power Integrations Inc

Tel: +1 408 523 9200 Fax: +1 408 523 9300

www: http://www.powerint.com

Transformer Spreadsheet

ACDC_TOPGX_Rev0.2_090100



 Power Integrations Inc. 2000

INPUT

INFO

OUTPUT UNIT

TOP_GX_090100.xls: TOPSwitch-GX

Continuous/Discontinuous, Flyback Transformer

Design Spreadsheet

ENTER APPLICATION

VARIABLES

Customer

VACMIN

Volts

Minimum AC Input Voltage

VACMAX

265

Volts

Maximum AC Input Voltage

Hertz

AC Mains Frequency

19.2

Volts

Output Voltage

Watts

Output Power

0.85

Efficiency Estimate

Z0.5

Loss Allocation Factor

Volts

Bias Voltage

mSeconds

Bridge Rectifier Conduction Time Estimate

CIN

150

uFarads

Input Filter Capacitor

ENTER TOPSWITCH-FX

VARIABLES

TOP-FX

top249

Universal

115 Doubled/230V

Chosen Device

TOP249 Pout

135W

300W

0.55

External Ilimit reduction factor (KI=1.0 for default ILIMIT,

KI <1.0 for

lower ILIMIT)

ILIMITMIN

2.67 Amps

Use 1% resistor in setting external ILIMIT

ILIMITMAX

3.18 Amps

Use 1% resistor in setting external ILIMIT

Frequency - (F)=130kHz,

(H)=65kHz

Full (F) frequency option - 130kHz

132000

132000 Hertz

TOPSwitch-FX Switching Frequency: Choose between

132 kHz and 66 kHz

fSmin

124000 Hertz

TOPSwitch-FX Minimum Switching Frequency

fSmax

140000 Hertz

TOPSwitch-FX Maximum Switching Frequency

VOR

120

Volts

Reflected Output Voltage

VDS

Volts

TOPSwitch on-state Drain to Source Voltage

0.7

Volts

Output Winding Diode Forward Voltage Drop

VDB

0.7

Volts

Bias Winding Diode Forward Voltage Drop

0.60

Ripple to Peak Current Ratio (0.4 < KRP < 1.0 : 1.0<

KDP<6.0)

ENTER TRANSFORMER

CORE/CONSTRUCTION VARIABLES

Core Type

PQ26/2

Core

#N/A

P/N:

#N/A

Bobbin

#N/A

P/N:

#N/A

1.19

1.19 cm^2

Core Effective Cross Sectional Area

0.463

0.463 cm

Core Effective Path Length

6170

6170 nH/T^2

Ungapped Core Effective Inductance

9.2

9.2 mm

Bobbin Physical Winding Width

Safety Margin Width (Half the Primary to Secondary

Creepage

Distance)

L1.4

Number of Primary Layers

Number of Secondary Turns

EP11 Datasheet(PDF) 15 Page - Power Integrations, Inc.

EP11 Datasheet(HTML) 15 Page - Power Integrations, Inc.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Datasheet Download

Link URL