The Dc/Dc Converter; Specifications; Input Voltage (Nominal); Output Voltage 1 - HP M2350A Service Manual

Understanding the Computer Module
The DC/DC Converter
The DC/DC Converter
The DC/DC Converter is used in the computer module to accept the 60V output from the
Switch-Mode Power Supply (SMPS) in the display module and generate all the voltages required
by the function cards.
Specifications
Input Voltage (nominal). 60V +/-
10%.
Total output
55 Watts
Power:
Efficiency:
Greater than 75 % .
Output Voltage 1
Voltage (nominal). + 5.15V
Tolerance.
f2% (total deviation including load resistance, adjustment tolerance and
environmental temperature drift between 0°C and 55°C).
Current (maximum). 8A.
Lead Range.
Tolerance limits maintained between 0.25A and 8A.
Overshoot.
Less than 2% at switch ON.
Ripple Voltage.
Less than 50mV rms, Less than 1OOmV pk-pk.
Output Voltage
2
Voltage (nominal). + 12V
Tolerance.
flO% (total deviation including load resistance, adjustment and environment
temperature drift between 0°C and 55°C.
Current (maximum). 0.8A
Load Range. Tolerances maintained between 0.05A and 0.8A.
Overshoot. Less
than 5% at switch ON.
Ripple Voltage.
Less than 1OOmV MIS. Less than 200mV pk-pk.
Output Voltage 3
Voltage (nominal). -12V
Tolerance.
4~10% (total deviation including load resistance, adjustment tolerance and
environmental temperature drift between 0°C and 55°C).
Current (maximum). 0.4A -
Overshoot.
Less than 5% at switch ON.
Ripple Voltage.
Less than 1OOmV rms. Less than 250mV pk-pk.
Internal Connector. 64-pin DIN 41612
External Connector. 15-pin
"D" Type
2-7