8-8
Source-Measure Concepts
Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006
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Maximum duty cycle equation
1,
2
DC
MAX
P
CS
T
DER
–
(
)
V
OA
V
B
–
(
)
V
B
(
)
–
V
OA
V
P
–
(
)
I
P
( )
-------------------------------------------------------------------------------------------
100
×
2
≤
NOTE
When attempting to determine the maximum duty cycle where the
off state will be 0V or 0A:
•
I
B
is 0
•
I
P
and V
P
are the voltage and current levels when the
SourceMeter is on.
NOTE
This maximum duty cycle equation is an approximation. In general,
if the duty cycle calculation yields a number > 90% then DC under
those conditions should not cause the SourceMeter to overheat.
However, if the calculation yields a number < 10%, the calculated
duty cycle should not be exceeded by more than 0.5% to avoid
potential overheating.
Model 2601/2602 Maximum Duty Cycle equation constants
Constant
100mV range
1V range
6V range
40V range
P
HS
56
56
56
56
V
OA
18
18
18
56
Model 2611/2612 Maximum Duty Cycle equation constants
Constant
200mV range
2V range
20V range
200V range
P
HS
56
56
56
48
V
OA
38
38
38
222
1. Equations apply to both channels, sinking or sourcing power simultaneously.
2. If a duty cycle less than 100% is required to avoid overheating, the maximum on time must be less than
10 seconds.
Содержание SourceMeter 2600 Series
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