Remote programming in series operation for increased output voltage:
1. Programming by external voltage:
The analog programming circuits of this power su- ply are referenced to the negative output potential. Therefore, the circuits used to control each series connected unit must be separated and floated from each other.
2.Using the SO function and PS_OK signal: | The |
| the isolated interface common, IF_COM |
| The IF_COM terminals of different units can be |
| connected to obtain a single control circuit for the |
| power supplies connected in series. |
3. Programming by external resistor: | Programming by external resistor is possible. Refer |
| to Section |
4. Programming via the Serial | The communication port is referenced to the |
| IF_COM which is isolated from the power supply |
| output potential. Therefore power supplies con- |
| nected in series can be |
| |
| Chapter 7 for details. |
5.14.2 Series connection for positive and negative output voltage
In this mode, two units are configured as a positive and negative output. Set the Output Current limit of each power supply to the maximum that the load can handle without damage. It is rec- ommended that diodes be connected in parallel with each unit output to prevent reverse voltage during
+LS +S
POWER + SUPPLY -
+LS +S
POWER + SUPPLY -
(*)
(*)
+
-
(*) Diodes are user supplied.
Fig.5-3: Series connection for positive/negative output voltages
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