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12MHZ/S/3.2X2.5 датащи(PDF) 25 Page - Infineon Technologies AG

номер детали 12MHZ/S/3.2X2.5
подробное описание детали  iMOTION™ Modular Application Design Kit
PDF  41 Pages
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производитель  INFINEON [Infineon Technologies AG]
домашняя страница  http://www.infineon.com
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12MHZ/S/3.2X2.5 датащи(HTML) 25 Page - Infineon Technologies AG

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User Manual
25 of 41
Revision 1.6
2019-07-16
EVAL-M3-102T User Manual
iMOTION™ Modular Application Design Kit
Hardware description of EVAL-M3-102T
5.2.3
PFC Internal Current feedback amplifier gain configuration
Figure 18 depicts IPFC- current feedback sensing circuity on EVAL-M3-102T evaluation board. Please note that
the default external amplification gain is less than 1 for current sense in this evaluation board.
Figure 18 The PFC Current feedback circuit for EVAL-M3-102T evaluation board
Based on the principle of Kirchhoff's voltage law,
≈ ≈( + ∗ )∗ + − ∗ = + − + ∗
= + =1213
Based on this calculation, the current input for the MADK combination of EVAL-M3-102T and EVAL-M3-CM615PN
is 27.69 mV/A, and for the combination of EVAL-M3-102T and EVAL-M3-TS6-606 it is 92.31 mV/A. Please use same
procedure to calculate the current input for other combinations of MADK boards and enter it into MCEWizard.
Figure 19 The PFCTRIPREF Circuit on the EVAL-M3-102T evaluation board
The PFC’s overcurrent protection circuit is shown in Figure 18 and Figure 19. The IPFCTRIP_Peak equal to 6.347A for
EVAL-M3-102T and EVAL-M3-CM615PN evaluation board only.
R7
1Kohm 1/10W 1%
R6
12Kohm 1/10W 1%
C15
220pF 10V
3.3V
IPFC-
R25
1Kohm 1/10W 1%
IPFC0
iMOTION
Controller
12
Rsh
Ish
Current shunt resistor
on power board
V3
V4
IPFC-
IPFC
3.3V
PFCTRIPREF
IPFC0
iMOTION
Controller
12
IPFC
PFCTRIPREF
21



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