AN604 datasheet(2/12 Pages) STMICROELECTRONICS

tên linh kiện	AN604

Giải thích chi tiết về linh kiện	Calculation of conduction losses in a power rectifier

PDF	12 Pages

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2 / 12 page

Contents

AN604

2/12

Doc ID 3607 Rev 3

Contents

Diode forward characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1

Junction temperature dependence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2

Diode forward characteristics modeling: VT0(Tj), RD(Tj) . . . . . . . . . . . . . . . 3

Conduction losses: basic equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1

Application parameters: average and rms currents . . . . . . . . . . . . . . . . . . 6

An application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1

Average and rms current calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2

VT0 (Tj) and RD (Tj) calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.3

Conduction losses expression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

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