Справочник Пользователя для Bixolon SRP-F310/312

Скачать
Страница из 66
 
Rev. 1.00 
- 39 -
SRP-F310/312
 
4-3 Special Circuit Descriptions 
 
4-3-1 Power Circuit 
 
This system is operated under 100Vac or 240Vac. The power circuit supplies the three differential DC voltage 
sources. 
 
 
 
[Figure 4-3 Power Block Diagram] 
 
1) Drawer Driving and Feed, Auto Cutter Motor Voltage and TPH Driving Voltage: +24VDC 
+24VDC is supplied from SMPS. This Voltage is smoothed by capacitors (CE1). 
This voltage is used as a Cash Drawer Solenoid Driving voltage, Step motor driving voltage and a source 
voltage of the other voltage sources and TPH Driving Voltage. 
 
2) IEEE1284 Logic IC Driving Voltage: +5VDC 
Step down voltage the input +24VDC to +5VDC by a switching regulation U13(A4490SES-T) 
 
3) CPU I/O, FPGA I/O, NAND Flash and etc. LOGIC Voltage: +3.3VDC 
Step down voltage the input +5VDC to +3.3VDC by a regulation.U15(SI-3006KWM) 
 
4) CPU A/D, USB core and OSC Voltage: +2.5VDC 
Step down voltage the input +24VDC to +2.5VDC by a switching regulation.U13(A4490SES-T) 
 
5) DDR2 Voltage: +1.8VDC 
Step down voltage the input +5VDC to +1.8VDC by a regulation.U15(SI-3006KWM)