SWS1000L-48 TDK Corporation, SWS1000L-48 Datasheet - Page 13

• Manufacturer Part Number: SWS1000L-48
• Description: PWR SUP MED 48V 22A SGL OUTPUT
• Manufacturer: TDK Corporation
• Series: SWS1000Lr
• Type: Commercialr

Specifications of SWS1000L-48

• Power Supply Type: Switching (Closed Frame)
• Voltage - Output: 48V
• Number Of Outputs: 1
• Power (watts): 1000W
• Applications: Medical
• Voltage - Input: 85 ~ 265VAC
• Mounting Type: Chassis Mount
• 1st Output: 48 VDC @ 22A
• Size / Dimension: 9.45" L x 5.91" W x 2.4" H (240mm x 150mm x 61mm)
• Power (watts) - Rated: 1056W
• Operating Temperature: -20°C ~ 74°C
• Efficiency: 86%
• Approvals: CSA, DENAN, EN, IEC, UL
• Power Supply Output Type: Fixed
• No. Of Outputs: 1
• Output Voltage: 48V
• Output Current: 22A
• Power Rating: 1056W
• Input Voltage: 85V AC To 265V AC / 120V DC To 350V DC
• Brand/series: SWS Series
• Configuration: Enclosed
• Output: 48 VDC @ 22 A
• Power, Output: 1056 W
• Primary Type: AC-DC
• Special Features: Parallelable, PFC, Remote On/Off, Remote Sense
• Voltage, Input: 85 to 265/120 to 350 VAC/VDC
• Voltage, Output: 48 VDC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: RoHS Compliant part
• Other names: 285-1798; SWS1000L48

・All specifications are subject to change without notice.
SWS
(a)
Example V1:5V R1:620Ω)
(b)
(c)
The standard specifi cation for maximum ripple value is mea-
sured by measurement circuit as below. When load lines are
longer, ripple becomes larger. In this case, electrolytic capaci-
tor, fi lm capacitor, etc. might be necessary to use across the
load terminal. The output ripple cannot be measured accurately
if the probe ground lead of oscilloscope is too long.
Fig.2.3 Examples of connecting remote ON/OFF circuit
Output Ripple & Noise
Power
Supply
12V
typ
600L, 1000L
12V
typ
12V
+
typ
-
150mm
47µ
2.2KΩ
150Ω
2.2KΩ
150Ω
2.2KΩ
150Ω
0.1µ
Coaxial Cable
1.5m
Load
AUX
CNT1
CNT2
TOG
G2
TOG
AUX
CNT1
CNT2
G2
AUX
CNT1
TOG
G2
CNT2
R1
Oscilloscope
20MHz
V1
SW
SW
SW
For series operation, both method (A) and (B) are possible.
There might be a step in the output rise waveform during series
operation.
Method (A)
Method (B)
Current balancing function is provided. Both operations mode
(A) and (B) are possible.
(A) To Increase the Output Current
Correct PC to PC terminal and COM to COM terminal, the current
balancing function activates and output current of each power
supply is equivalently supplied to load. Wires to PC terminals,
COM terminals shall be as short as possible and same length
and twisted.
(B) To Use as a Backup Power Supply
(1) Adjust the output voltage of each power supply to be same
(2) Use same length and type of wires for all load lines.
(3) Please make sure that the sum of output current values
(4) Parallel operation is possible up to 5 units.
(1) Adjust the output voltage (Vo) of each power supply to be
(2) Set power supply output voltage higher to compensate the
(3) Use within the specifi cations for output voltage and output
(4) When one of power supplies fails, the remaining non-failure
value within 1% or 100mV whichever is smaller.
does not exceed a value obtained from the right side of fol-
lowing equation.
Maximum of total output current in parallel operation
Rated current per unit × Number of units × 0.9
same value within 1% or 100mV whichever is smaller.
forward voltage drop of diode.
current.
power supplies continue to maintain the output. If one of
the power supplies stop operating, the output voltage may
Series Operation
Parallel Operation
Power Supply
Power Supply
+Vm
+Vm
-Vm
-Vm
+S
+S
-S
-S
+Vm
-Vm
+Vm
-Vm
+S
+S
-S
-S
Load
Load
Load
≤
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