AN2252

Application circuit description

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Figure 19. highlights the proportional drive. It shows the collector current (channel 4 - green)

and the base current (channel 3 - pink) at the same scale. Channel 1 (blue) is the collector

voltage.

Figure 19.

Proportional base current

Figure 20. shows how the base current copies the collector current during the storage time

and the current fall time. Channel 4 shows the collector current (green), channel 3 shows the

base current (pink) and Channel 1 shows the collector voltage (blue).

Figure 20.

Detailed proportional base and collector current

Table 7. shows the results of the case temperature measurement of the primary ESBT

switch and secondary Schottky diode at a 25°C room temperature, for full power and two

marginal input voltage values.