Chapter 4: Power Supplies Connection; Parallel Operation; Parallel Connection - Tdk-Lambda Rfe1600 Serie Bedienungsanleitung

CHAPTER 4:
4.1

Parallel Operation

RFE1600
+V
+SENSE J1-2
-SENSE J1-1
-V
ENABLE J1-8
SIGNAL RETURN J1-17
V_PROG J1-3
TRIM J1-12
CURRENT SHARE J1-16
RFE1600
+V
+SENSE J1-2
-SENSE J1-1
-V
ENABLE J1-8
SIGNAL RETURN J1-17
V_PROG J1-3
CURRENT SHARE J1-16
RFE1600
+V
+SENSE J1-2
-SENSE J1-1
-V
ENABLE J1-8
SIGNAL RETURN J1-17
V_PROG J1-3
CURRENT SHARE J1-16
POWER SUPPLIES CONNECTION
Figure 4–1:
LOAD
+V
-V
• Up to 10 x RFE1600 units with the same rating (voltage
and current) can be used in parallel to increase the output
current.
• By connecting the CS signal between the paralleled units,
automatic current balance is achieved with accuracy of
Accuracy ±10%:
Accuracy ±5%:
• Derate the total output current by 5% when using parallel
operation to prevent unit overload condition.
The built-in O-Ring MOSFETs on the main output and the
•
12V Auxiliary output allow N+1 operation.
• If Voltage programming is used, "V_PROG" inputs of all
units must be connected in parallel.
• Referenced to "SIGNAL RETURN" (floating from the
output) controls/signals and +12V AUX can be connected
in parallel.
• ENABLE of all supplies can be connected to a single
switch.
For PMBus option.
• If voltage programming is done with PMBus, Voltage
Programming and V_REF of all units must be connected in
parallel.
Connect PMBus Signals in parallel (PMBUS is isolated from
•
output), and choose different address for each unit.
• If Current Programming is done with PMBUS, Current
Programming and V_REF of all units must be connected
in parallel.

Parallel Connection

16
20% ≤ Iout < 50% of max Iout.
Up to 10 units
Iout ≥ 50% of max Iout.
Up to 10 units.