2308-900-01 Rev. A / July 2008
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Section Topics
4-13
Model 2308 Portable Device Battery/Charger Simulator User’s Manual
Section 4: Long Integration Measurements
Use
FAST
,
SEARch
, and
DETect
to control how background readings are taken.
A background
reading is a measurement taken by the power supply between user triggered readings. The
selected function dictates how background readings are taken between user triggered readings.
For long integration, a background reading involves looking for the pulse and optionally generating
a reading for the user. The various settings of
SEARch
,
FAST,
and
DETect
allow the user to fine
tune the function. This enables the function to perform the desired background readings (if any)
between user triggered readings. The default settings (
FAST:OFF
,
SEARch:ON
, and
DETect:OFF
) allow the long integration background readings to be taken. If no pulse is present,
the setting of TimeOUT affects how responsive the supply is to bus commands. If a pulse is
present, the search time plus reading time (TIME setting) affects how responsive the supply is to
bus commands (refer to
Figure 4-3
).
Table 4-3
contains the available settings for
FAST
,
SEARch
,
and
DETect
commands and a description of the resulting action. For more information on search
time, reading time, and
TimeOUT
, see
Pulse timeout
.
Figure 4-3
TOUT and search time
NOTE
• If a pulse is not present, timeout needs to elapse (TOUT).
• If DETECT ON (only), search time needs to elapse before responding to a
bus command (reading time not incurred).
• If SEARCH OFF or FAST ON, search time and reading time not incurred.
NOTE
Search time needs to elapse when checking
TLEV
command for valid setting.
B
A
Long Integration
Time
Search Time
TOUT
Reading
Time
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