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DRV8461SPWPR 数据表(PDF) 94 Page - Texas Instruments |
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DRV8461SPWPR 数据表(HTML) 94 Page - Texas Instruments |
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94 / 117 page  Figure 7-100. ATQ_CTRL13 Register (continued) ATQ_D_THR[7:0] R/W-00000101b Table 7-84. ATQ_CTRL13 Register Field Descriptions Bit Field Type Default Description 7-0 ATQ_D_THR R/W 00000101b If error change is less then ATQ_D_THR, then KD does not contribute to correction. KD contributes only when error change is greater than ATQ_D_THR. For example: if ATQ_D_THR = 10, If error change is 9, u(t) = KP * e(t) If error change is 12, then u(t) = KP * e(t) + KD * de(t)/dt 7.5.5.14 ATQ_CTRL14 (address = 0x2C) [Default = 0Fh] ATQ_CTRL14 is shown in Figure 7-101 and described in Table 7-85. Read/Write Return to the Register Maps Table Figure 7-101. ATQ_CTRL14 Register 7 6 5 4 3 2 1 0 RSVD R/W-00001111b Table 7-85. ATQ_CTRL14 Register Field Descriptions Bit Field Type Default Description 7-0 RSVD R/W 00001111b Reserved 7.5.5.15 ATQ_CTRL15 (address = 0x2D) [Default = 00h] ATQ_CTRL15 is shown in Figure 7-102 and described in Table 7-86. Read/Write Return to the Register Maps Table Figure 7-102. ATQ_CTRL15 Register 7 6 5 4 3 2 1 0 ATQ_ERROR_TRUNCATE[3:0] ATQ_LRN_STEP[1:0] ATQ_LRN_CYCLE_SELECT[1:0] R/W-0000b R/W-00b R/W-00b Table 7-86. ATQ_CTRL15 Register Field Descriptions Bit Field Type Default Description 7-4 ATQ_ERROR_TRUNCATE[3:0] R/W 0000b Number of LSB bits truncated from error before used in PD loop equations. This option helps removing noise in current. DRV8461 SLOSE98 – DECEMBER 2022 www.ti.com 94 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: DRV8461 |
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