Tektronix VITS100 VITS100 NTSC VITS Inserter Instruction Manual 39, Table 316: Power Supply characteristics , Table 317: Physical characteristics

Specifications
VITS100 NTSC VITS Inserter Instruction Manual 3–9
Table 3–16: Power Supply characteristics
Characteristic Information
Output Voltages +5 V±200 mV from 1A to 3 A (voltage adjustable)
–5.2 V±300 mV from 0.5 A to 1 A
±12 V±120 mV from 0.05 A to 0.2 A (post regulated from ±14.5 V by linear regulators)
Output Ripple
+5 V ≤50 mV switching ripple,
≤5 mV line frequency ripple
–5.2 V ≤50 mV switching ripple,
≤10 mV line frequency ripple
±12 V ≤10 mV switching ripple,
≤5 mV line frequency ripple
Line Input Range Regulates from 90 to 250 VAC
Minimum Load 10 W minimum load required to operate. However, output voltages other than +5 V may
not meet specifications outside the listed currents. At zero load the power supply cycles
on and off
Power Consumption 40–50 W.
Overvoltage Protection The 5 V output is protected by a crowbar circuit that engages at approximately 5.7 V.
Overvoltage protection causes the power supply to cycle by engaging the primary side
current limit time-out circuit
Power 70 W maximum controlled by primary side current limit circuits. Power supply cycles on
and off when power limit is reached
Short-Circuit Protection All outputs are protected by the primary side current limit and time-out circuits. In
addition, the ±12 V outputs are limited to 1 A by the linear regulators
Efficiency 70% nominal
Fan Drive 15 V to 16.5 V, as determined by supply load
Table 3–17: Physical characteristics
Characteristic Information
Height 1.734 in (4.404 cm)
Width 8.1 in (20.6 cm)
Length 17.2 in (43.7 cm)
Weight
Net 4.7 lbs (2.1 kg)
Shipping 16.7 lbs (7.6 kg)