Redarc DPS1225, Руководство пользователя

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6
4 PRODUCT FUNCTION
4.2 Unit Performance Characteristics
The DPS Should be mounted to the vehicle’s chassis to allow adequate heat-sinking. If the DPS
experiences extreme ambient temperatures its output power may decrease until a steady-state is
achieved. Better heat-sinking will enable greater power output.
Figure 2: Output Current Rating vs Time
Time
Output Curr
ent rating
DPS T
emperatur
e
DPS T
emperatur
e
Good Heatsink
Poor Heatsink
85°C
(185°F)
The DPS is able to overcome substantial voltage drop by acting as a voltage booster. Voltage drop (as
a result of inadequate input cable size) can cause excessive heat to be generated in the wiring. To
ensure the wiring is protected the DPS will try to limit the difference between input and output voltage
by reducing the current draw on the input of the unit. To ensure full power output is maintained suitable
cable size (as outlined in Section 5.8) should be used.
Figure 3: Output Current Rating vs Loaded Input Voltage
Loaded Input Voltage
Output Curr
ent rating
9V 12V 24V 32V
DPS1225
DPS1240
DPS2410
DPS2420