Compaq iPAQ Internet Device Manual De Usuario
Technical Reference Guide
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
7-1
Drives
110/220 VAC
110/220 VAC
Select SW
Select SW
Chapter 7
POWER and SIGNAL
DISTRIBUTION
POWER and SIGNAL
DISTRIBUTION
7.
Chapter 7 POWER SUPPLY AND DISTRIBUTION
7.1 INTRODUCTION
This chapter describes the power supply and method of general power and signal distribution.
Topics covered in this chapter include:
Topics covered in this chapter include:
♦ Power supply assembly/control (7.2)
page 7-1
♦ Power distribution (7.3)
page 7-5
♦ Signal distribution (7.4)
page 7-7
7.2
POWER SUPPLY ASSEMBLY/CONTROL
This system features a power supply assembly that is controlled through programmable logic
(Figure 7-1).
(Figure 7-1).
Figure 7–1.
Power Distribution and Control, Block Diagram
Power Supply
Assembly
+5 VDC
-5 VDC
+12 VDC
-12 VDC
+5
AUX
AUX
Logic &
Voltage Regulators
PS
On
On
Fan
Off
Off
System/Backplane Board
Power On/Off
Pwr Btn Board
Power On
110 VAC
220 VAC
AC Outlet
+3.3
VDC
VDC