Power supply, M series service manual – ZOLL M Series Defibrillator Rev R User Manual

Page 130

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M Series Service Manual

120

Power Supply

The power supply converts DC power from a removable battery or the AC/DC Battery Charger module to voltages
required by the M Series hardware.

The power supply circuit converts the raw battery or the Charger PWBA output voltages of +8.5 VDC to +16 VDC
into the voltages shown in the table below, including load and line regulation.

VOLTAGE

DESCRIPTION

VOLTAGE VDC
(Nominal)

COMMENTS

FUSE_PWR

Fused Input Power from

Battery/Charger

12

SW_PWR

Switched Input Power

after Power Switch

12

3VDD

+ 3.3 VDC Power for

Digital circuits

3.3

Switching @ 300 kHz

5VDD

+ 5.0 VDC Power for

Digital circuits

5.0

Switching @ 300 kHz

-5VSS

- 5.0 VDC Power for

Analog circuits

-5.0

Linear

12VEE

+ 12.0 VDC Power for

Analog circuits

12.0

Linear

15VDD

+ 15.0 VDC Power for

VPP and 12VEE

15.0

Switching @ 300 kHz

LCD_BS

LCD BIAS Power for

LCD display

- 18

Switching @ 100 kHz

3_3REF

+ 3.3 VDC Reference

3.3

Linear

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