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QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

TYPICAL QUASI-RESONANT FLYBACK CONVERTER

WARNING: lethal potentials are present. See text.

APPLICATIONS INFORMATION

designs that embody these components must conform with applicable safety requirements. Precau-

tions must be taken to prevent accidental contact with power-line potentials. Do not connect

grounded test equipment.

The use of an isolation transformer is recommended during circuit development and breadboarding.

Recommended mounting hardware torque:

4.34 Ð 5.79 lbf¥ft (6 Ð 8 kg¥cm or 0.588 Ð 0.784 Nm).

Recommended metal-oxide-filled, alkyl-degenerated oil base, silicone grease:

Dow Corning 340, or equivalent

VOLTAGE

SENSE

+ OUTPUT

Ð OUTPUT

+

+

Dwg. EK-004A

R

SQ

+

+

+

+

9

8

5

4

3

1

2

7

6

5