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App
Index
Fixed Source Range and Auto Range
(See section 5.2 for the procedure)
There are two source ranges: fixed range and auto range.
Fixed Source Range
The target range is specified directly. You can set the source level within the source range
(see “Voltage Range” and “Current Range” on pages 2-7 and 2-8) of the specified range.
Auto Source Range
The GS820 automatically switches to the most suitable range according to the source
level. This allows you to set the source level within the source range (see “Source
Range” on page 2-7) without having to worry about the range. However, the output may
be temporarily discontinuous if the range switches.
Source Action
Source action refers to a sequence of operation in which the source setting changes as a
result of a source trigger.
The following four types of source action are available based on the combination of the
source waveform and sweep mode.
Source Action for DC Source
If the sweep function is OFF in DC source mode, the actual source setting will change
at the time the setting change is instructed from a panel operation or communication
command. SrcChg (source change) that is selectable as a measurement trigger is
generated after the source delay time elapses from the time the source trigger is applied.
In addition, source busy (TRIG OUT) is set low when the source trigger is applied and
returns to high after the generation of software processing.
Source busy
(TRIG OUT)
SrcChg
Source
delay
Source trigger
(TRIG IN)
Source
Previous setting
Next setting
Source setting change caused by front panel operation or
communication command control
(The source actually changes
when the setting is changed. The source trigger is irrelevant.)
Jitter caused by software processing
Source Action for Pulse Source
The source level in pulse source mode before the source trigger is applied is at the pulse
base value. The source level changes to the pulse source level after the source delay
elapses from the source trigger input and remains at that level over the pulse width.
Then, the source level returns to the pulse base value. SrcChg (source change) that is
selectable as a measurement trigger is generated after the source delay time elapses
from the time the source trigger is applied at the pulse source timing. In addition, source
busy (TRIG OUT) is set low when the source trigger is applied and returns to high after
the end of the generation of the pulse software processing.
Source busy
(TRIG OUT)
SrcChg
Source
delay
Source trigger
Source
Pulse base
Pulse base
Pulse source level
Pulse width
Jitter caused by software processing
2.3 Source
2-9
IM 765601-01E
Explanation of Functions