Evm Setup, Connections And Validation; Evm Setup; Figure 4-1. Evm Setup Schematic For A Three-Phase, Four-Wire System; Table 4-1. Evm Header Connections - Texas Instruments TPSF12C3QEVM User Manual

EVM Setup, Connections and Validation

4 EVM Setup, Connections and Validation

4.1 EVM Setup

Referencing the header connections described in
of Figure 4-1 to evaluate the performance of the TPSF12C3-Q1 in a three-phase, four-wire system. The AEF
circuit effectively replaces the Y-capacitors normally placed between the CM chokes (and tied from power lines
to chassis ground) in a conventional 2-stage, 4
L
CM1-AEF
L1
C
X1
L2
AC
C
X2
source
L3
C
X3
N
PE
Y-rated sense and
inject capacitors

Figure 4-1. EVM Setup Schematic for a Three-Phase, Four-Wire System

(3)
POSITION LABEL
1 S4 Sense 4 input – connect to a Y-rated sense capacitor, C
2 S3 Sense 3 input – connect to a Y-rated sense capacitor, C
3 S2 Sense 2 input – connect to a Y-rated sense capacitor, C
4 S1 Sense 1 input – connect to a Y-rated sense capacitor, C
5 GND Ground – connect to the chassis ground of the system
6 INJ Inject output – connect to a Y-rated inject capacitor, C
7 VDD Supply voltage connection – connect to a 12-V bias power supply referenced to GND
8 EN Enable input – leave open or tie high to enable the IC; tie to GND to disable
(1) Refer to the TPSF12C3-Q1
(2) Working at an ESD-protected workstation, ensure that any wrist straps, bootstraps or mats are connected and referencing the user to
Earth ground before power is applied to the EVM.
(3) Pin positions of header J1 designate left to right when viewed from the top side of the EVM.
6 TPSF12C3QEVM Active EMI Filter Evaluation Module for Three-Phase AC
Power Systems
Table
th
-order CLCL fully passive CM filter design.
C C
SEN4 SEN2
C C
SEN3 SEN1
GND
S4 S3 S2 S1
J1
NC IGND
VDD INJ
NC NC
SENSE1 COMP2
SENSE2
COMP1
SENSE3 REFGND
SENSE4 EN
TI standalone active EMI filter EVM

Table 4-1. EVM Header Connections

data sheet for absolute maximum and operating ratings associated with the features of this IC.
Copyright © 2023 Texas Instruments Incorporated
4-1, use the recommended setup from the schematic
L
CM2-AEF
C
X4
C
X5
C
X6
C
INJ
To enable the IC, leave EN open or
connect it to VDD using a jumper
INJ VDD
EN
DESCRIPTION
(or connect to GND in a system without neutral)
SEN4
SEN3
SEN2
SEN1
INJ
www.ti.com
(1) (2)
C
X7
AC/DC
C
X8
regulator
C
X9
Chassis
C C C C
Y1 Y2 Y3 Y4
Chassis (PE)
Chassis-referred bias power supply
Voltage range: 8 V to 16 V
Current rating: 50 mA max.
= AC/DC regulator
= Three-phase AC source
with neutral
= Three-phase AEF IC
Y-rated sense and
=
inject capacitors
= 8-pin header
SLVUCM2 – JANUARY 2023
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