User manual

22

Revision 1.1

2020-09-29

EVAL-M1-IM240-A user manual

iMOTION™ modular application design kit

Schematics and layout

5.4

EMI filter and rectifier circuit

Figure 18 depicts the schematic from the AC line input connector J2 to the rectified DC bus voltage. This

circuitry includes a passive EMI filter consisting of elements CX1, CX2, L2, CY1 and CY2, a 4 A/600 V rectifier block

BR1 and a NTC resistor RT1 for surge current protection. An electrolytic capacitor C13 and two ceramic

capacitors C14 and C15 are used for buffering the rectified DC bus voltage DCP. During testing it is advisable to

include an external fuse.

Figure 18 Schematic for EMI filter and AC/DC section of the EVAL-M1-IM240-A evaluation board

DCP

+

C13

220uF, 450V

RT1

15D-9

N

L

ETH

1

2

3

J2

RJ55S-10.00-08P

CX1

104/X2

L2

8103 - 1mH, 2A

CX2

104/X2

CY1

222/Y2

CY2

222/Y2

C14

11nF/500V

C15

11nF/500V

2

3

BR1

4A/600V

1

TP4

GND

DCP

LED1

R11

1.00M, 1W

1

DCP

GND