Power-Measurement Application Examples
THS710A, THS720A, THS730A & THS720P User Manual
2–43
Setup to Detect a Missing Cycle
S
PE
AUTO
RANGE
— —
E
Trigger Type Pulse
ME
Trigger
Source
Ch1
Polarity and
Width
Negative Set width to
20 ms
Trigger When Greater Than
Width
Mode Normal
Set the trigger level to +50 V. The TekScope instrument triggers if
one or more power cycles drop below a 50 V
pk
threshold. You can
set the voltage threshold to any other level that constitutes a power
dropout.
Going Further
Use the other channel to analyze the effect that the missing cycle has
on your equipment:
H Momentary sags in internal power-supply voltages
H Malfunctions in digital circuitry
H Variations in clock frequencies
Channel 1 and channel 2 are always acquired simultaneously so you
can correlate a cause displayed on one channel to the effect
displayed on the other.
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