Scientific 5000 Series, Manual

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APPENDIX B
MODEL 5000 SERIES MANUAL
Version 1.23
13-5
Appendix B
Regulator (ADP-320)
Overview
Three-pin series regulators are tested on the 5000 Series Tester using a Regulator
Adaptor that plugs into the 5000 Series Tester front panel and into which a standard
test fixture is plugged.
The adaptor (see Figure 13-1) ties the High Source (A) to the regulator input and the
Low Source (G) to the regulator output. In addition, the adaptor accepts the divider
resistor pair (R1 and R2), which sets the output voltage. Use Load Mount Jacks to
plug resistors into the adaptor. For a fixed voltage regulator, short across the R2
terminals and leave the R1 terminals open.
Terminals on the test fixture correlate to the regulator terminals as follows:
Fixture Regulator
A, A
S
V
IN
G, G
S
V
O
K, K
S
ADJ
Table 13-1 Regulator Terminal Designations
The regulator load can either electronic or resistive. Electronic selection allows the
load current to be programmed between 100
μA and 9.9A. If resistive, the load is
programmed internally as either 1K, 10K, Open or Short. An external load (R
GK
EXT)
is also programmable. Attach the external load across the R
GK
terminals on the 5000
Series Tester front panel or Low Current Deck front panel if testing at the Low
Current Deck.
Output voltage, Min or Max, can be tested or measured under a variety of
programmed loads and input voltages by repeating the test steps shown below.
Input current can likewise be tested.
CAUTION: Be certain the regulator terminals match as
indicated in Table 13-1 above to avoid damage.