dSPACE DS1103 - Page 287

Parameter Specification
Power supply Tandem‑AutoBox n Two power supplies (each identical to the AutoBox
power supply). They must both be connected.
n All specifications stated here are valid for each of
the two built‑in power supplies.
Operating principle Two‑stage switching power supply with wide input
voltage range and independent output regulation.
Input voltage n 8 V … 60 V DC normal operating range
n 10 V … 60 V DC continuous operation (> 30 min.,
fully equipped at max. ambient temperature)
n Load-dump protection up to 120 V
Input current n 20 A at 12 V nominal
n 10 A at 24 V nominal
Overcurrent protection n 32 A foldback current line
n 60 A external fuse
Start-up current ≤ 50 A
Quiescent current < 1 mA with remote off
Maximum output
current
(The sum of the output
currents must not
exceed the maximum
output power of the
supply rails.)
Up to Tandem-AutoBox Version 2.0:
n 40 A @ +5 V
n 3 A @ +12 V
n 3 A @ –12 V
Tandem-AutoBox Version 3.0 and 4.0:
n 40 A @ +5 V
n 7 A @ +12 V
n 3 A @ –12 V
Maximum output
power
270 W @ 12 V nominal input voltage
Efficiency 60 % @ 12 V nominal input voltage
Input/output isolation 250 V
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dSPACE Expansion Boxes
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DS1103 Hardware Installation and Configuration November 2014
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