
User Manual
25
<Revision 1.0>
EVAL-M3-TS6-665PN User Manual
iMOTION™ Modular Application Design Kit
Hardware description of EVAL-M3-TS6-665PN
Figure 22
The part of Current feedback on the EVAL-M3-102T evaluation board
Based on the principle of Kirchhoff's voltage law,
𝑉𝑉
2
≈ 𝑉𝑉
1
≈
(
𝑉𝑉
𝐷𝐷𝐷𝐷
− 𝐼𝐼
𝑠𝑠ℎ
∗ 𝑅𝑅
𝑠𝑠ℎ
)
∗
𝑅𝑅
13
𝑅𝑅
10
+
𝑅𝑅
13
+
𝐼𝐼
𝑠𝑠ℎ
∗ 𝑅𝑅
𝑠𝑠ℎ
=
𝑅𝑅
13
𝑅𝑅
10
+
𝑅𝑅
13
𝑉𝑉
𝐷𝐷𝐷𝐷
+
𝑅𝑅
10
𝑅𝑅
10
+
𝑅𝑅
13
𝑅𝑅
𝑠𝑠ℎ
∗ 𝐼𝐼
𝑠𝑠ℎ
𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶
𝑖𝑖𝐶𝐶𝑖𝑖𝐶𝐶𝐶𝐶
=
𝑅𝑅
10
𝑅𝑅
10
+
𝑅𝑅
13
𝑅𝑅
𝑠𝑠ℎ
=
5
6
𝑅𝑅
𝑠𝑠ℎ
Based on this calculation, the current input for the MADK combination of EVAL-M3-102T and EVAL-M3-TS6-
665PN is 25 mV/A.
Please use same procedure to calculate the current input for other combinations of MADK boards and enter it
into MCEWizard as shown in Figure 23.
R12
100ohm 1/10W 1%
R13
2Kohm 1/10W 1%
R10
10Kohm 1/10W 1%
C21
220pF
+3.3V
IU+
Rsh
Ish
iMOTION
Controller
IU
18
V1
V2
Current shunt resistor
on power board
<201
9
-0
6
-
05
>