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MIC4609 bảng dữ liệu(PDF) 19 Page - Microchip Technology

tên linh kiện MIC4609
Giải thích chi tiết về linh kiện  600V 3-Phase MOSFET/IGBT Driver
PDF  34 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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MIC4609 bảng dữ liệu(HTML) 19 Page - Microchip Technology

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 2016 Microchip Technology Inc.
DS20005531A-page 19
MIC4609
4.5
Dead Time and
Anti-Shoot-Through Protection
Shoot-through occurs when both the high and low-side
IGBTs/MOSFETs of a particular phase are ON at the
same time. The inputs of each phase use
anti-shoot-through circuitry to prevent this condition
from occurring. If both the HI and LI inputs of a phase
go high, both outputs (HO and LO) of that phase go low.
In addition to anti-shoot-through circuitry, a fixed
"dead-time" delay is added to the input-to-output
propagation delay. This allows the IGBTs/MOSFETs in
a particular phase to fully turn off before the other turns
on.
FIGURE 4-4:
Dead Time, Propagation Delay, and Rise/Fall-Time Diagram.
xLI
xLO
xHO
tD
tD
xHI
tR
tF
VIH
VIL
50%
10%
90%
tPW
10%
90%
50%
90%
tOFF
tON
10%
10%
90%



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