TAKASAGO HX-S-G4 Series, Instruction Manual

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Special Loads
155
Pulse Current Loads
If the load current exceeds the constant current (current limit) value for even a moment, the constant current
circuits will trigger.
Further, if the output power exceeds the rating even for a moment the power limit circuit will trigger.
In these cases, the output voltage will become unstable.
Please take caution so that the peak current does not exceed the current limit value when the load current is in a
pulsing state. This cannot be determined by this device’s ammeter alone because it only displays the average
output current value.
If the constant current circuit (power limit circuit) is triggered intermittently by the peak current, the CC lamp or
LIMIT lamp will appear dimly lit or blinking.
For this type of load, stability can be improved by connecting high-capacity capacitors to the load in parallel.
In case of Pulse Current Load
Peak
Current
+
-
Pulse
Load
+
Average Value
Current Limit Value
Current Wave Form
due to Current Limit
Original Current Wave Form
0A
Load Current Wave Form Improved with Parallel Capacitors
-