Series Operation; Parallel Operation - TDK-Lambda HWS300P Series Instruction Manual

6-10. Series Operation

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)
Power Supply

6-11. Parallel Operation

There are operation Mode (A) and (B).
As for HWS300P, Mode (B) is possible. As for HWS600P, Mode (A) and (B) are possible.
(A) To Increase the Output Current(only as for HWS600P)
Current balancing function is provided. Connecting 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.
Parallel operation is possible up to 2 units.
1. Adjust the output voltage of each power supply to be same value within 100mV.
2. Use same length and type of wires for all load lines.
3. Peak output current and average output current use less than specification for all paralleled models.
(B) To Use as a Backup Power Supply
1. Adjust the output voltage of each power supply to be same value.
2. Set power supply output voltage higher by the forward voltage drop of diode.
3. Use within the specifications for output voltage and output power.
(A) To Increase the Output Current
(only as for HWS600P)
Power Supply
PC COM
PC COM
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Method (B)
Power Supply
Load
(B) To Use as a Backup Power Supply
Power Supply
Load
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TDK-Lambda
HWS300P-600P Series
INSTRUCTION MANUAL
Load
Load
Output Power(W)=(Vo+Vf) x Io
Io
Load
Vo+Vf Vo
Vo+Vf