ZHCU458I march 2018 – july 2023
为了保持同步运行,所有转换都按如下方式触发:
TINV_Q1_Q3_A_PWM_BASE;即 EPWM1 TBCTR_D_CMPB → EPWM1_SOCA(绿色),每个周期触发一次
TINV_Q1_Q3_A_PWM_BASE;即 EPWM1 TBCTR_D_CMPB → EPWM1_SOCB (),每 10 个周期触发一次
TINV_Q2_Q4_A_PWM_BASE;即 EPWM2 TBCTR_U_CMPB → EPWM2_SOCA,每个周期触发一次
TINV_Q2_Q4_A_PWM_BASE;即 EPWM2 TBCTR_D_CMPB → EPWM2_SOCB,每个周期触发一次
TINV_Q1_Q3_A_PWM_BASE;即 EPWM3 TBCTR_PERIOD → EPWM3_SOCA,每个周期触发一次
表 3-6 所示为在 TIDA-01606 硬件上使用 F2837xD 时的映射。
ADC-A | ADC-B | ADC-C | ADC-D | |
---|---|---|---|---|
SOC0 |
IINV-A → ADCIN-14,CMPSS4 |
TEMP_A → ADC-B0 |
IINV-B → ADC-C4,CMPSS5 |
IINV-C → ADC-D2,CMPSS8 |
SOC1 |
VGRID-A → ADC-A2 |
TEMP_B → ADC-B1 |
VGRID-B → ADC-C2 |
VGRID-C → ADC-D0 |
SOC2 |
VINV-A → ADC-A4 |
TEMP_A → ADC-B2 |
VINV-B → ADC-C3 |
VINV-C → ADC-D1 |
SOC3 |
VGRID-A → ADC-A2 |
TEMP_AMB → ADC-B3 |
VGRID-B → ADC-C2 |
VBUS → ADC-D5 |
SOC4 |
VGRID-A → ADC-A2 |
VGRID-B → ADC-C2 |
VGRID-C → ADC-D0 |
|
SOC5 |
VGRID-A → ADC-A2 |
VGRID-B → ADC-C2 |
VBUS → ADC-D5 |
|
SOC6 |
VGRID-C → ADC-D0 |
|||
SOC7 |
VBUS → ADC-D5 |
|||
SOC8 |
VGRID-C → ADC-D0 |
|||
SOC9 |
VBUS → ADC-D5 |
表 3-6 展示了在 TIDA-01606 硬件上使用 F280039C 时的映射。
ADC-A | ADC-B | ADC-C | |
---|---|---|---|
SOC0 | IINV-B → ADCIN-A12、CMPSS2 | IINV-C → ADCIN-B14、CMPSS3 | IINV-A → ADCIN-C0、CMPSS1 |
SOC1 | VGRID-A → ADC-A2 | V_REF → ADC-B8 | VGRID-C → ADC-C1 |
SOC2 | VINV-A → ADC-A5 | VGRID-B → ADC-B0 | VINV-B → ADC-C3 |
SOC3 | VINV-C → ADC-A8 | VGRID-B → ADC-B0 | VBUS → ADC-C14 |
SOC4 | VMID → ADC-A3 | VGRID-B → ADC-B0 | VGRID-C → ADC-C1 |
SOC5 | VGRID-A → ADC-A2 | VGRID-B → ADC-B0 | VBUS → ADC-C14 |
SOC6 | VMID → ADC-A3 | TEMP_A → ADC-B3 | VGRID-C → ADC-C1 |
SOC7 | VGRID-A → ADC-A2 | TEMP_B → ADC-B2 | VBUS → ADC-C14 |
SOC8 | VMID → ADC-A3 | TEMP_C → ADC-B12 | VGRID-C → ADC-C1 |
SOC9 | VGRID-A → ADC-A2 | TEMP_AMB → ADC-B4 | VBUS → ADC-C14 |
SOC10 | VMID → ADC-A3 |
由于布局噪声,ADC 电流读数不用于闭环运行,而是采用 SDFM 基极检测功能来闭合环路。因此,电网电流用于闭合电流环路,并且应针对此变化相应地解读图表。