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參數(shù)資料
| 型號： | AN-1090 |
| 廠商： | International Rectifier |
| 英文描述： | Controller Dynamics and Tuning |
| 中文描述： | 控制器動力學和調整 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大?。?/td> | 269K |
| 代理商： | AN-1090 |
15
Once current regulator diagnostic is executed, step current response can be observed from trace
function or current probes on w-phase. It is recommended to use current probe to observe step
current response. Figure 4 shows (current probe) the step current response of w-phase when
Current Reg diagnostic function is executed. In this figure, 25% step rated motor current is
commanded. The step level can be controlled by parameter ParkI (inside Current Reg Diagnostic
function). Figure 5 shows the expanded version of Figure 4. The measured current loop response
is critically damped at 0.65 msec time constant (0 – 66.3% of final steady value), which is
approximately equal to the anticipated current regulator bandwidth response (1/1500 =
0.667msec).
www.irf.com
5
0%
25%
Figure 4. Step Current Response
0.65 msec
Figure 5. Step Current Response (Expanded Time Scale)
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