manual

3. DC Output Specification
3.1 Output Power / Currents
Table 4: Load Range
Voltage Minimum Continuous Load Maximum Continuous Load
+3.3V 0.5A 25A
+5V 0.5A 25A
+12V 0.8A 65A
-12V 0.1A 0.5A
+5VSB 0.1A 3.5A
Notes:
1: The +3.3 &+5 Volt total outputs shall not exceed 150W.
2: The maximum output power shall not exceed 800W.
3: Noise bandwidth is from DC to 20 MHz
3.2 Voltage Regulation, Ripple and Noise
Table 5: Regulation, ripple and noise
Output Voltage +3.3V +5V +12V -12V +5VSB
Load Reg. ±5% ±5% ±5% ±5% ±5%
Line Reg. ±1% ±1% ±1% ±1% ±1%
Ripple & Noise 60mV 60mV 120mV 120mV 60mV
Ripple and noise shall be measured using the following methods:
a) Measurements made differentially to eliminate common-mode noise
b) Ground lead length of oscilloscope probe shall be ≤ 0.25 inch.
c) Measurements made where the cable connectors attach to the load.
d) Outputs bypassed at the point of measurement with a parallel combination of
10uF tantalum capacitor in parallel with 0.1uF ceramic c
apacitors.
e) Oscilloscope bandwidth of 0 Hz to 20MHz.
f) Measurements measured at locations where remote sense wires are connected.
g) Regulation tolerance shall include temperature change, warm up drift and dynamic load
3.3 Capacitive Loading
The power supply shall be stable and meet all requirements in the following table, except dynamic loading
requirements.