1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25
℃
of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel
capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Length of set up time is measured at cold first start. Turning ON/OFF the power supply may lead to increase of the set up time.
File Name:OWA-90U-SPEC 2014-06-20
90W Single Output Moistureproof Adaptor
Block Diagram
O WA - 9 0 U
series
PFC fosc : 50~120KHz
PWM fosc : 60~130KHz
RECTIFIERS
&
FILTER
O.L.P.
O.T.P.
O.L.P.
PWM & PFC
CONTROL
DETECTION
CIRCUIT
O.V.P.
I/P
EMI FILTER
&
RECTIFIERS
PFC
CIRCUIT
POWER
SWITCHING
+V
-V
Derating Curve
Static Characteristics
100
100
90
80
230VAC
Input only
80
70
LOAD (%)
LOAD (%)
-25
-10
0
15
30
50
60
70
(HORIZONTAL)
60
50
40
60
50
40
20
-40
90
100
125
135
145
155 165
175
180
200
230
264
AMBIENT TEMPERATURE (
℃
)
INPUT VOLTAGE (V) 60Hz
Power Factor Characteristic
Constant Current Mode
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.30
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
PF
230V
115V
LOAD
(90W)
File Name:OWA-90U-SPEC 2014-06-20
90W Single Output Moistureproof Adaptor
EFFICIENCY vs LOAD (48V Model)
OWA-90U series possess superior working efficiency that up to 91% can be reached in field applications.
O WA - 9 0 U
series
92
91
90
89
EFFICIENCY (%)
88
87
86
85
84
83
82
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
230V
115V
LOAD
DRIVING METHODS OF LED MODULE
There are two major kinds of LED drive method, "direct drive" and "with LED driver".
A typical LED power supply may either work in "constant voltage mode (CV)" or "constant current mode (CC)" to drive the LEDs.
Mean Well's LED power supply with CV+ CC characteristic can be operated at both CV mode (with LED driver, at area (A) and CC mode (direct drive, at area (B).
100
(A) Constant
Voltage area
(B)
Constant
Current area
In the constant current region, the highest voltage at the output of the driver
depends on the configuration of the end systems.
Should there be any compatibility issues, please contact MEAN WELL.
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Embedded System
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