Power Supply - ZOLL M Series Service Manual

M Series Service Manual

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
FUSE_PWR Fused Input Power from
Battery/Charger
SW_PWR Switched Input Power
after Power Switch
3VDD + 3.3 VDC Power for
Digital circuits
5VDD + 5.0 VDC Power for
Digital circuits
-5VSS - 5.0 VDC Power for
Analog circuits
12VEE + 12.0 VDC Power for
Analog circuits
15VDD + 15.0 VDC Power for
VPP and 12VEE
LCD_BS LCD BIAS Power for
LCD display
3_3REF + 3.3 VDC Reference
VOLTAGE VDC COMMENTS
(Nominal)
12
12
3.3 Switching @ 300 kHz
5.0 Switching @ 300 kHz
-5.0 Linear
12.0 Linear
15.0 Switching @ 300 kHz
- 18 Switching @ 100 kHz
3.3 Linear
98