Power-Measurement Application Examples
THS710A, THS720A, THS730A & THS720P User Manual
2–39
Setup to Measure Instantaneous Power Dissipation
S
PE
CH 1 — — —
CH 2 Probe Type Current
Probe
Set to
100 mV/A
AUTO
RANGE
— —
MATH Math
Operation
Ch1 × Ch2
CURSOR Cursor
Function
Paired Set cursor
Move the cursor along the power (MATH) waveform and read the
instantaneous power in the cursor readout (for example, @5.63 W).
Going Further
Measure the average power dissipation in the transistor (mean value
of the power waveform) with the following setup:
S
PE ME
S
Select
Measrmnt for
MATH
Mean
OK Select
Measrmnt
—
You can also display the I-V characteristic of the transistor for
comparison to its safe operating area using the XY display format.
Refer to page 3–14 for information on XY display format.
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