- 30 -
4-5 TDA835xJ Vertical Amplifier
The TDA835xJ are power circuit for use in 90
o
and 110
o
colour deflection systems for field frequencies
of 25 to 200Hz and 16/9 picture tubes. The circuit provides a DC driven vertical deflection output circuit,
operating as a highly efficient class G system. Due to the full bridge output circuit the deflection coils can
be DC coupled.
The IC is constructed in a Low Voltage DMOS process that combines Bipolar, CMOS and DMOS devices.
MOS transistors are used in the output stage because of the absence of second breakdown.
4-5-1 TDA8357J
Features :
- Few external components
- High efficient fully DC-coupled vertical output bridge circuit
- Short rise and fall time of the vertical flyback switch
- Guard circuit
- Temperature (thermal) protection
- High EMC because of common mode inputs
Pinning
Pin Symbol Description
1 Vi(pos) input voltage (positive)
2 Vi(neg) input voltage
(negative)
3 Vp supply voltage
4
V
OB
output voltage B
5 GND ground
6 Vflb flyback supply voltage
7
V
OA
output voltage A
8
V
O(guard)
guard output voltage
9
V
M
input measuring
resistor
Summary of Contents for DTP-28B1
Page 29: ...29 Block diagram TDA8944J...
Page 32: ...32...
Page 34: ...34 Block diagram TDA6107Q...
Page 39: ...39 5 Circuit description 5 1 Block diagram...
Page 57: ...57 5 9 2 2 STR F6654 oscillating operation...
Page 73: ...73 7 Exploded View 7 5 DTP 28B1...
Page 74: ...PRINTED CIRCUIT BOARD PCB MAIN...
Page 75: ......
Page 76: ......