Sanps/Sanpse Board Main Components; Tl494 (Ic20 - Epson LQ-510 Technical Manual

APPENDIX
A.1.2 SANPS/SANPSE Board Main Components
Table A-9 shows SANPS/SANPSE board ICs.
Location
IC1
I C 2 0

4.1.2.1 TL494 (IC20)

The TL494 provides pulse-width modulation control. Its block diagram is shown in Figure A-22.
Dead Time Control
A-16
Table A-9. SANPS/SANPSE Board ICs
Name of IC
Adjustable precision shunt regulator
L5431
T L 4 9 4 Pulse-width modulation control
COMPARATOR
PWM COMPARATOR
Figure A-22. TL494 Block Diagram
Type
REV.-A
LQ-510