DRF100 Просмотр технического описания (PDF) - Advanced Power Technology

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DRF100

High Speed MOSFET Driver

Advanced Power Technology  

DRF100

Figure 13, Anti-Ring ON

Figure 14, Anit-RIng OFF

The output waveform with the Anti-Ring function ON is illustrated in Figure 13 and the

Anti-Ring function OFF is illustrated in Figure 14. The load is 50Ω with no load capacitance,

other than the output capacitance of the driver.

Figure 15, Anti-Ring ON

Figure 16, Anit-RIng OFF

The output waveform with the Anti-Ring function ON is illustrated in Figure 15 and the

Anti-Ring function OFF is illustrated in Figure 16. The load is 50Ω + 3nF of capacitance.

The ring amplitude in Figure 15 is clearly above the 2-4V threshold voltage of most power

MOSFETs, while In Figure 16 we see that the ring peak is at ~=2V, also see Figure 13. It

is most likely that the wave form of Figure 16 will cause a cross conduction in a Bridge or

push pull topology.

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