TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48V 240W 1 Phase / DRP048V240W1B
□
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2013, Rev. 01)
12
Power Boost
𝐷𝑢𝑡𝑦
𝑐𝑦𝑐𝑙𝑒
(%) =
𝑇
𝑃
𝑇𝑜𝑡𝑎𝑙
𝑇𝑖𝑚𝑒
𝐴𝑣𝑒𝑟𝑎𝑔𝑒
𝑂𝑢𝑡𝑝𝑢𝑡
𝑃𝑜𝑤𝑒𝑟
(
𝑃
𝐴𝑣𝑔
) =
(
𝑃𝑜𝑤𝑒𝑟
𝐵𝑜𝑜𝑠𝑡
×
𝑇
𝑃
) + (
𝑁𝑜𝑛
-
𝑃𝑒𝑎𝑘
𝑃𝑜𝑤𝑒𝑟
×
𝑇
𝑁
)
𝑇𝑜𝑡𝑎𝑙
𝑇𝑖𝑚𝑒
OR
𝑁𝑜𝑛
-
𝑃𝑒𝑎𝑘
𝑃𝑜𝑤𝑒𝑟
=
�𝑃
𝐴𝑣𝑔
×
𝑇𝑜𝑡𝑎𝑙
𝑇𝑖𝑚𝑒� −
(
𝑃𝑜𝑤𝑒𝑟
𝐵𝑜𝑜𝑠𝑡
×
𝑇
𝑃
)
𝑇
𝑁
An example of Power Boost and Average Output Power
Power Boost
Peak Power
(W
P
)
Power Boost
Duration (T
P
)
Duty Cycle
Non-Peak
Power (W
N
)
Non-Peak Power
Duration (T
N
)
Total Time
(T)
150%
360
5 sec
10%
226W
45 sec
50 sec
150%
360
5 sec
35%
175W
9.3 sec
14.3 sec
120%
288
10 sec
20%
228W
40 sec
50 sec
120%
288
10 sec
35%
214W
18.5 sec
28.5 sec
It is not recommended to prolong the duration of Power Boost to be longer than the specified duty cycle calculation, this may cause
damage to the PSU.
Power Boost is the reserve power available
constantly that allows reliable startup to support
sudden and short spike of loads with high inrush
current typically during turn on to remove the
need of more expensive higher rated power
supply unit. After the output has reached its
steady state set value, the power supply can
support surge loads with a higher short-term
power demand up to 150% of maximum rated
load (I
O
Max), for a maximum duration of 5
seconds. The Power Boost is also available to
repeatedly basis with according to the condition of
an average (R.M.S) output power shall not
exceed continuous operating condition or refer to
duty cycle calculation below.