Filter
Top Products
16
Trigger delay; 90 degree phase synchronization
VOLT:M STEP
VOLT 120
VOLT:T 150
DELAY .0167
SYNC:SOUR PHAS
SYNC:PHAS 90
INIT:IMMED
When these commands are sent, the voltage amplitude changes at the next
90 degree phase angle that occurs after the .0167 second delay has expired,
following the receipt of a trigger.
VOLT level
TRIG level
90
0
Delay
Trigger
More about the trigger system
In the previous examples, a front panel trigger is used to generate the output transients. The trigger is
shown occurring at 270 degrees but actual triggers may occur at any phase. Delay and phase
synchronization however, will occur as programmed.
Note that trigger system used in the ac source provides great flexibility in generating triggers. The
following figure is a simplified model of the trigger system. A complete discussion of the capabilities of
the trigger system is found in the ac source Programming Guide.
DELAYING STATE
INITIATED STATE
IDLE STATE
TRIGGER RECEIVED
DELAY COMPLETED
INIT:IMMED
WAIT FOR SYNC STATE
OUTPUT CHANGES
PHASE ANGLE OCCURS
Trigger Shift
Trigger Control
Voltage