TIDUAY6E November 2015 – March 2020
This reference design follows an HSEC control card concept, and any device for which the HSEC control card is available from the C2000 MCU product family can be potentially used on the design. The key resources used for controlling the power stage on the MCU are listed in Table 3. Figure 15 shows the key power stage and connectors on the reference design, and Table 4 lists the key connectors and their functions. To get started:
NOTE
The bias for the MCU is separated from the power stage, enabling safe bring up of the system.
SIGNAL NAME | HSEC PIN NUMBER | FUNCTION |
---|---|---|
PWM-1A | 49 | PWM: Inverter drive |
PWM-1B | 51 | PWM: Inverter drive |
PWM-2A | 53 | PWM: Inverter drive |
PWM-2B | 55 | PWM: Inverter drive |
I.inv | 15 | ADC: Inductor current measurement |
1.65V | 17 | ADC: Reference voltage generated on the board |
Bus.V | 21 | ADC: DC bus sensed on the board |
Line.V | 25 | ADC: AC voltage sensing |
PLC_RX | 27, 12 | ADC: PLC ADC pin |
SD_Data_CapI | 99 | SDFM: Data from the SDFM modulator for the capacitor current feedback |
SD_Data_GridI | 103 | SDFM: Data from the SDFM modulator for output current |
SD_Data_Vbus | 100 | SDFM: Data from the SDFM modulator for the DC bus voltage |
SD_Data_GridV | 107 | SDFM: Data from the SDFM modulator for the grid voltage |
SD_CLK_GridV /
SD_CLK_GridI / SD_CLK_CapI |
50, 101, 105, 109 | SDFM: Data from the SDFM modulator for the grid voltage |
SD_CLK_Vbus | 102, 54 | SDFM: Clock from the SDFM modulator used for Vbus measurement. The clock is generated from ECAP1 module which is brought out using the output xBar |
OPRLY | 52 | GPIO: relay gpio output |
SW-ON | 56 | GPIO: switch gpio input |
Figure 16 shows a block diagram of a typical setup of this reference design under test.