Daewoo Color Television, Service Manual

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3. TDA8357J Vertical Amplifier
The TDA8357J is a power circuit for use in 90º TV systems for field frequencies of 25 to 200Hz and 16/9 picture tubes.
The cir-cuit 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.
Features :
- Few external components
- Highly 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
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IC DESCRIPTION
APPENDIX