Mounting Directions - TDK-Lambda ZWS-BP Series Instruction Manual

7．Mounting Directions

7-1. Mounting Directions.

Recommended standard mounting method is (A). Method (B)-(F) are also possible. From an mounting method and power supply ambient
temperature, use the output derating of the power supply in specifications value of standard. The details see at "7-3. Output Derating"
(A) Standard
Mounting
CN1
(INPUT)
7-2. Output Peak Power
This product must be use to satisfy (a) and (b).
Allowable peak output operating time is less than 5sec.
When the product operate peak power for more than 5 sec, the delay shut down function operates and the output will shut down.
Peak output power and average output power use less than specification.
Peak output power is limited depending on Duty. The details see at (b).
The product might be damage to use beyond the limits of (a) and (b).
When using pulse load, a noise may be heard from power supply unit. Please evaluate and check before using.
(a) Expression of relations
formula about Duty
t
= ´
Duty 100
T
formula about average output power
Wp
0(W)
t
³ =
Wavg Wm
Wp ： Peak output power ( W )
Wavg ： Average output power of Specification ( W )
Wm ： Average output power ( W )
Peak output power vs Duty
（b）
ZWS150BP
45
40
35
30
25
20
15
10
5
0
150 180 210
Peak output power (W)
(B) (C)
FIN
CN1
CN1
FIN
(%)
Wm
T
t
´
Wp
T
270 300
240 330
(D) (E)
CN1
CN1
Wp
a(W)
0(W)
t
³
Wavg Wm
τ ： Pulse width of peak output power ( sec )
T ： Period ( sec )
Duty ： The duty is pulse width of peak output
power of one period(%)
ZWS240BP
45
40
35
30
25
20
15
10
5
0
240 300
Peak output power (W)
-11-
TDK-Lambda
ZWS-BP Series
Instruction Manual
(F)
CN1
Wm
T
( )
t
- ´
Wp a
= +
a
T
360 480
420