GE Vivid i n - Power Supply System; Electrical Power; Introduction

GE HEALTHCARE
DIRECTION FQ091013, REVISION 1 VIVID I N AND VIVID Q N SERVICE MANUAL
5-30 Section 5-6 - Power Supply System
Section 5-6
Power Supply System
5-6-1 Electrical Power
The Vivid i n and Vivid q N systems can operate at between 100 and 240 V at 50/60 Hz via an
AC/DC converter which supplies a 20 V DC output and 4.5 amps.
5-6-2 Introduction
The power system comprises two main building blocks:
• AC/DC Adaptor - an external unit connected to the system's rear panel (see Figure 5-22).
• DC/DC Power Supply Unit - located inside and mounted to the bottom assembly, provides the
system with both Low Voltage and High Voltage power, and also enables recharging of the battery.
- The Power Supply Unit controls the following main functions:
* Input switching stage - selects between the external DC source and the internal battery
* Back End Low Voltage power supply (LVPS)
* Standby power supply
* Front End Low Voltage power supply (LVPS)
* Front End High Voltage power supply (HVPS)
* Battery charger controlled by the Power Management controller
* Control circuitry (used for monitoring, charger control and auxiliary functions).
* The PS communicates with the host CPU via the SMBus