MS1003SH･MS1004SH

Application Note Ver.2.2

SHINDENGEN ELECTRIC MFG. CO. , LTD

18/41

5. Design procedure

The design procedure presented in this section is intended to illustrate an example of electrical design procedure.

Make sure insulation materials, insulation configuration, and structure meet the safety standards set forth by the

relevant authorities. The following table shows the units for the parameters used in the formulas encountered in

this section:

 List of units used in the formulas in this section

Description

Unit

Description

Unit

Voltage

V (volt)

Time

s (second)

Current

A (ampere)

Length

mm (millimeter)

Power

W (watt)

Area

mm

Capacitance

F (farad)

Current density

A/mm

2

(ampere per square millimeter)

Inductance

H (henry)

Magnetic flux

density

mT (millitesla)

Resistance

Ω (ohm)

Number of turns

turn

5.1 Design flow chart

[5.2 Example of main transformer design conditions]

 P. 19

[5.3 Formulas for main transformer design]

 P. 19

Select the primary circuit

components.

Produce a prototype.

Design the main transformer.

Determine

specifications.

Check each

operating point.

Completion

Check function.

[5.4 Checking the operating points]

 P. 21

[5.5 Pin design]

 P. 27