TIDUAY6E November   2015  – March 2020

 

  1.   Revision History

4.1.1.1 Base Board Settings

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:

  1. Confirm that no power source is connected to the design.
  2. Confirm that the output filter is correct for the mode that the device will run in. For example, voltage source inverter uses an LC filter. The L2 and L2N slot must be jumper wired as shown in Figure 11.
  3. Ensure that the capacitor is 20 µF by checking the marking on the capacitor.
  4. Insert the control card in the J15-J16 slot.
  5. Insert a jumper at J10 if not already populated.
  6. Connect a 15-V DC, 1-A power supply at J2.
  7. Insert a jumper at J4 if not already populated. The LED lights on the base board and control card will light up to indicate that the device is powered up.

    8. NOTE

    The bias for the MCU is separated from the power stage, enabling safe bring up of the system.
  8. To connect JTAG, use a USB cable from the control card and connect it to a host computer.
  9. A DC source can also be connected to the J17, but do not apply power at this point.
  10. Connect a resistive load of approximately 100 Ω to the output from J1.

TIDM-HV-1PH-DCAC Board_Overview_TIDUAY6.gifFigure 15. Board Overview

Table 3. Key Controller Peripherals Used for Control on the Full Bridge on the Board

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

Table 4. Key Connectors and Their Function

CONNECTOR NAME FUNCTION
J17 Used to connect the high-voltage DC bus at the input
J2 Supplies the bias power supply for the control card and the circuitry for sensing on the base board
J4 Can be used to disconnect bias power
J1 AC connector to connect the output to load
J15-J16 HSEC control card slot
J10 Supplies the DC bias power supply to the isolated gate drivers, and the drivers must be populated

Figure 16 shows a block diagram of a typical setup of this reference design under test.

TIDM-HV-1PH-DCAC Hardware_Setup_Run_Software_TIDUAY6.gifFigure 16. Hardware Setup to Run Software