Calculating Power Loss - Keysight Technologies B1507A User Manual

The power loss calculation software calculates the power loss from the drive
conditions and the device characteristics parameters of DUT.
There are the following two ways to specify the parameters for calculation:
• Specify the parameter values from the datasheet of DUT.
If you want to calculate the power loss of DUT at the different drive conditions
or there are the parameters that are not specified in the datasheet, you may
specify the predicted values.
• Measure the switching device by the I/V measurement software, capacitance
measurement software, and gate charge measurement software at your desired
drive conditions and store the measurement data. Then, the power loss
calculation software read the stored measurement data and extract the required
drive conditions and characteristics parameters for power loss calculation.
This section explains the procedure that specify the measurement data file of DUT.

Calculating Power Loss

Step 1. Prepare the measurement data
The power loss calculation software uses the following measurement data files to
calculate the power loss. So, measure the DUT at your desired drive conditions and
save the measured data.
• Measurement data file of I/V measurement software
Prepare a measurement data file that measured either one of the following
measurement item.
• ID-VDS
• RDS-ID
• VDS-VGS
• RDS-VGS
• Measurement data file of capacitance measurement software
Prepare the measurement data files that measured the following measurement
items.
• Rg
• Crss
Keysight B1507A User's Guide, Ed ition 1
How To Perform Measurement
How To Calculate Power Loss
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