EDAN F15 Series - AC-DC Power Board

F15 Series Fetal & Maternal Monitor Service Manual Principle Introduction
- 24 -
Socket
to
connect
with the
main
control
board
RJ45 Isolation
Transformer
Circuit
RJ45
Interface
HDMI Interface
Protective
Circuit
HDMI
Interface
Communication
Interface Circuit
DB15
Interface
USB HUB USB Interface
DC-DC
+1V2
+3V3
Socket to connect with
EDAN/NELL transducer
socket board
+3V3
TXD*4、RXD*4
MARK、EXT
+5V
+12V
MCU
RF Module
Docking
Interface
USB HUB
+5V
USB
Connector
+5V3_USB
Figure 6-2 Bottom Interface Board Circuit Block Diagram
6.1.3 AC-DC Power Board
The AC-DC power module assembly provides voltage to F15 main unit and DC-DC transfer
board, i.e realizing the power supply of the main unit and charging function of the batteries.