PMT2 Panel Mount Power Supply
PMT2 150W series / PMT-
□
V150W2C
□□
TECHNICAL DATASHEET
All parameters are specified at 25°C ambient and nominal AC input unless otherwise indicated.
www.DeltaPSU.com (September. 2022, Rev. 02)
10
Inrush Current
Inrush current is the peak, instantaneous, input current measured
and, occurs when the input voltage is first applied. For AC input
voltages, the maximum peak value of inrush current will occur
during the first half cycle of the applied AC voltage. This peak value
decreases exponentially during subsequent cycles of AC voltage.
Dynamic Response
The power supply output voltage will remains within ± 10% of its
steady state value, when subjected to a dynamic load from 0%
10% to 100%
Overload & Overcurrent Protections (Auto-Recovery)
The power supply’s Overload (OLP) and Overcurrent (OCP)
Protections will be activated when output current exceeds 110% of
I
O
(Max load). In such occurrence, the V
O
will start to droop and
once the power supply has reached its maximum power limit, the
protection is activated and the power supply will go into “Hiccup
mode” (Auto-Recovery). The power supply will recover once the
fault condition of the OLP and OCP is removed and I
O
is back
within the specifications.
It is not recommended to prolong the duration of Io when it is
< 110% but > 100%, since it may cause damage to the PSU.
Short Circuit Protection (Auto-Recovery)
The power supply’s output OLP/OCP function also provides
protection against short circuits. When a short circuit is applied, the
output current will operate in “Hiccup mode”, as shown in the
illustration in the OLP/OCP section on this page. The power supply
will return to normal operation after the short circuit is removed.
Overvoltage Protection (Latch Mode)
The power supply’s overvoltage circuit will be activated when its
internal feedback circuit fails. The output voltage shall not exceed
its specifications defined on under “Protections”. Power supply will
latch, and require removal/re-application of input AC voltage in
order to restart.
The power supply should be latch, and require removal /re-
apply of input AC voltage in order to restart.
Over Temperature Protection (Latch Mode)
As described in Engineering data section, the power supply also
has Over Temperature Protection (OTP). In the event of a higher
operating temperature at 100% load, the power supply will run into
OTP when the operating temperature is beyond what is
recommended in the de-rating graph. When activated, the output
voltage will go into latch mode until the temperature drops to its
normal operating temperature as recommended in the de-rating
graph.
