4
Theory of Operation
72
Keysight N1913/1914A Service Guide
PSU Assembly
Purpose
– Provides various DC power supplies
Inputs
– 100 Vac ~240 Vac, 50 Hz ~60 Hz, 150 VA Max [from an external source]
– Control lines [from front panel, via main board]
Outputs
PSU
Charger
+ Battery
Switching
regulation,
distribution
and filtering
Battery Option
+12 V
–12 V
+5 V
–5 V
+3.3 V
Summary of Contents for N1913
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