System Power Management; Rechargeable Battery Pack - GE Venue R1 Service Manual

P R E L I M I N A R Y
D 5771498-100, R
IRECTION
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System Power Management

The System Power Management is responsible for operating the system in different power states, in
accordance with the power condition and User request.
System Power Management comprises the following:
• The PSU Module, responsible for the following functions:
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• The MPB module is responsible for the following:
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• The Embedded Controller (SOM), is responsible for the following functions:
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•
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Rechargeable Battery Pack

The battery pack consists of Li-Ion cells, protection and fuel gauge electronics, and connectors.
The battery module consists of 3 batteries bound together by plastic brackets. All battery packs are
electrically isolated.
• The main functions of the battery fuel gauge are:
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•
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5
EVISION
Convert 100 - 240V AC to Isolated 18V DC power supply
Battery Charger controlled by the SOM
Automatic Switching from AC power line (18V DC after conversion by PSU) and battery power
(12v-16.8v)
Control the power-up and wake-up sequences
Battery Monitoring and Battery Charger control
Interface to the PSU
Interface to the T-CFE Power sequencing and Monitoring Device
Back End Thermal Management
Charge and discharge operation
Battery pack fuel gauging (PIC16F886)
Resettable primary protection (over voltage, under voltage, and discharge over current).
Non resettable secondary protection (over voltage and FET over-temperature).
Chapter 5 - Venue™Components and Function (Theory)
V ™ S M
ENUE ERVICE ANUAL
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