Power Analysis
188
19.4.2
Switching Loss Configuration
To configure the switching loss configuration
1.
Set
Analysis
to
Switching Loss
in the power analysis menu.
2.
Touch
Config
to display the switching loss configuration menu shown in
3.
Touch
V Ref
to set he voltage reference, i.e. the switch level at the edge
of the input switch.
–
This value is a percentage of the maximum switching voltage.
–
Adjusting the value to ignore background noise.
–
This value is used to determine the threshold hysteresis of the switch
edge
4.
Touch
I Ref
to set the current reference, i.e. the switch level at the
beginning of the input switch edge.
–
This value is the percentage of the maximum switching current.
–
This value can be adjusted to ignore background noise or invalid offset
that is difficult to eliminate in the current probe.
–
This value is used to determine the threshold hysteresis of the switch
edge
5.
Touch
Conduction
to set the conduction type.
–
Waveform, Rds(on) or Vce(sat)
6.
Touch
Rds(On)
and turn the
Universal Knob
or use the virtual keypad to
set the Rds resistance.
7.
Touch
Vce(Sat)
and turn the
Universal Knob
or use the virtual keypad to
set the Vce voltage.
Figure 19.10
Switching
Loss Config Menu
19.4.3
Conduction Type
•
Waveform
: The power waveform uses the original data, and the calculation formula is P = V * I, E = P * T.
•
Rds (on)
: In the on the area (where the voltage level is lower than the voltage reference (adjustable)), the power
calculation formula is P = I2 * Rds (on). In the off area (where the current level is lower than the current reference
(adjustable)), the power calculation formula is P = 0 watt.
•
Vce (sat)
: In the on area (where the voltage level is lower than the voltage reference (adjustable)), the power
calculation formula is P = Vce (sat) * I. In the off area (where the current level is lower than the current reference
(adjustable)), the power calculation formula is P = 0 watt.
Содержание 2560B Series
Страница 1: ......
Страница 51: ...Digital Channels 51 Figure 8 9 Digital Bus...
Страница 127: ...Serial Trigger and Decode 127 Figure 10 63 Manchester Bus...
Страница 168: ...Reference Waveform 168 Figure 14 1 Recall REFB...
Страница 210: ...Save Recall 210 Figure 22 4 Save As...