TM 11-6625-2965-14&P
tracts directly from the available output voltage and also reduces the amplitude of the feedback error signals that are developed within the unit. Because of these factors it is recommended that the drop in each load lead not exceed 1 Volt. If a larger drop must be tolerated, please consuIt a 
sales engineer.
NOTE
Due to the voltage drop in the load leads, it may be necessary to readjust the current limit in the remote sensing mode.
3-28 Another factor that must be considered is the inductance of long load leads which could affect the stability of the feedback loop and cause oscillation. In these cases, it is recommended that the output capacitor (C20) be physically removed from the power supply and placed across the output terminals.
3-29 Although the strapping patterns shown in Figures 3-4and 3-5 employ local sensing, notice that it is possible to operate a power supply simultaneously in the remote sensing and the remote programming modes.
3-30 SERIES OPERATION
3-31 Normal Series Connections (Figure 3-7). Two or more power supplies can be operated in
series to obtain a higher voltage | than | that avail- |
able from a | single | supply. | When | this | configuration |
is used, the | output | voltage | is the | sum | of the volt- |
A 7 A 6 A 8 A 1 0 - S + G N D – – S
A 7 A 6 A 8 A 1 0 - S + G N D – – S
ages of the individual supplies. Each of the individual supplies must be adjusted in order to obtain the total output voltage. The power supply contains a protective diode connected internally across the output which protects the supply if one power supply is turned off while its series part- ner(s) is on.
3-32 Auto-Series Connections (Figure 3-8). The Auto-Series configuration is used when it is desirable to have the output voltage of each of the series connected supplies vary in accordance with the setting of a control unit. The control unit is called the master; the controlled units are called slaves . At maximum output voltage, the voltage of the slaves is determined by the setting of the front panel VOLTAGE control on the master. The master supply must be the most positive supply of the series. The current limit settings of all series
