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EPC9147C Motor Drive Controller Interface Board
EPC – POWER CONVERSION TECHNOLOGY LEADER |
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Compatible Motor Drive Inverters
A list of motor drive inverter power boards compatible to the EPC9147C is given in table 2.
EPC9147C Electrical Specifications
Table 2: Compatible eGaN FET/IC motor driver inverters to the EPC9147C
Motor Drive Inverter Board Number
Basic Specifications
Web Link
EPC9146 Rev. 2.1
400 W, 3-phase BLDC Inverter using EPC2152
EPC9146 – 400 W Motor drive demo board
EPC9145 Rev. 1.1
1000 W, 3-phase BLDC Inverter using EPC2206
EPC9145 – 1000 W Motor drive demo board
Table 3: Electrical Specifications (T
A
= 25°C) EPC9147C
Symbol
Parameter
Conditions
Min
Nominal
Max
Units
V
3.3EXT
External 3.3 V Operating voltage
J7 is not mounted
3.1
3.3
3.5
V
V
5VEXT
External 5 V straight to ST board connector
4.9
5.0
5.1
V
Table 4: Motor interface connection (J2) pin allocation map
Pin #
Pin Name
Pin #
2
PWMH1
GND
1
4
PWML1
GND
3
6
PWMH2
GND
5
8
PWML2
GND
7
10
PWMH3
3V3
9
12
PWML3
3V3
11
14
EncA
3V3
13
Index
18
EncB
GND
17
20
EncI
GND
19
22
Vin
GND
21
24
V1
GND
23
26
V2
GND
25
28
V3
GND
27
30
Iin
GND
29
32
I1
GND
31
34
I2
GND
33
36
I3
GND
35
38
EN/Pgood
LEDerr
37
40
Tsns
LEDact
39
CONNECTION DETAILS
Inverter
A 40 pin connector is used to interface power, PWM signals and analog
feedback signals between the interface board and the motor drive
inverter. Table 4 gives the map (J2) for each signal
PROGRAMMING
The ST Nucleo board that is connected to the EPC9147C board provides
a full programmer and debugger onboard. The user can program the
ST Nucleo board by using a USB cable connected to connector CN1 to
the ST Nucleo board and by using official ST integrated development
environment.
More details on the ST environment can be found at this page:
https://www.st.com/ content/st_com/en/ecosystems/stm32-motor-
control-ecosystem.html
The flow, as described by ST, can be depicted in Figure 4.
Figure 4 - ST motor control development programs