Philips TDA4861 - Manual (Page 8)

1997 Jan 20 8
Philips Semiconductors Product specification
Vertical deflection power amplifier for
monitors
TDA4861
APPLICATION INFORMATION
Fig.4 GUARD circuit application on vertical output.
handbook, full pagewidth
MEH362
TDA4861
8
VP3
VP
5 2.2 Ω 3.3 k Ω
220 k Ω
>
1 k
Ω
22 µ F
BC548
GUARD output
HIGH = error
2N5819
BAX13
vertical
output
signal
Fig.5 Application for flyback voltage generation by doubling the supply voltage.
handbook, full pagewidth
MEH359
yoke
470
µ F
0.1
µ
F
5.25 mH
C2 100 µ F
470
µ
F
1 M Ω
150 k Ω
270 Ω 10 k Ω
1.8 k Ω
BAX13
−
7.8 V
R1
1 Ω
1.8 k
Ω
5.6 Ω
R2 240 Ω
VP2 VP3
8 7 6 5 4 3 2 1 9
PCO
RPCO
VN
VP1 V-OUT SUB FLB
DIFFERENTIAL
INPUT
AMPLIFIER
VOLTAGE
STABILIZER
VERTICAL
DRIVER
from TDA4850
V-shift
+
9 V
VERTICAL
OUTPUT
TDA4861
THERMAL AND
SOAR
PROTECTION
FLYBACK
GENERATOR
FLYBACK
DRIVER
PULSE
CIRCUIT