TDA4861 데이터 시트보기 (PDF) - Philips Electronics

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TDA4861

Vertical deflection power amplifier for monitors

Philips Electronics 

Philips Semiconductors

Vertical deflection power amplifier for

monitors

APPLICATION INFORMATION

Product specification

TDA4861

handbook, full pagewidth

TDA4861

VP3

8

BAX13

5

2.2 Ω

2N5819

vertical

output

signal

VP

3.3 kΩ

22 µF

>1 kΩ

GUARD output

HIGH = error

BC548

220 kΩ

MEH362

Fig.4 GUARD circuit application on vertical output.

handbook, full pagewidth

VOLTAGE

STABILIZER

VERTICAL

DRIVER

TDA4861

THERMAL AND

SOAR

PROTECTION

FLYBACK

DRIVER

DIFFERENTIAL

INPUT

AMPLIFIER

VERTICAL

OUTPUT

FLYBACK

GENERATOR

PULSE

CIRCUIT

1

2

VP1

+9 V

470

µF 150 kΩ

from TDA4850

1 MΩ

V-shift

3

BAX13

4

5

VP2 V-OUT

6

7

SUB

FLB

C2 100 µF

270 Ω

1.8 kΩ

1.8 kΩ

R1

1Ω

5.6 Ω

R2 240 Ω

0.1 µF

5.25 mH

yoke

470 µF

VN

−7.8 V

8

9

VP3

PCO

10 kΩ RPCO

MEH359

1997 Jan 20

Fig.5 Application for flyback voltage generation by doubling the supply voltage.

8

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