參數(shù)資料
型號(hào): ISL6590DR
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: Dual Low-Noise Wide-Bandwidth Precision Amplifier 8-PDIP -40 to 85
中文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC64
封裝: 9 X 9 MM, PLASTIC, QFN-64
文件頁(yè)數(shù): 16/24頁(yè)
文件大?。?/td> 1525K
代理商: ISL6590DR
16
Adjusting The Digital PID
Frequency response of the digital PID compensator is
determined by the Kp, Ki, Kd factors. These factors are
stored in nonvolatile memory and are loaded in the controller
at power on reset. The system designer sets the PID
compensators frequency response using user interface
software. The designer enters the frequencies of the
desired poles and zeros and user interface software
calculates the Kp, Ki and Kd factors. the software will
calculate and display the frequency response of the
feedback and the closed loop system.
F
Z1
= Frequency of first zero
F
Z2
= Frequency of second zero
F
P0
= Gain * frequency of first pole (A
DC
*F
P0
)
F
P1
= Frequency of second pole
R
P2
= External Resistor used for third pole
C
P2
= External Capacitor used for third pole
F
P2
= 1 / (2 *
π
* R
P2
* C
P2
)
The software will calculate the frequency response of the
PID controller and the closed loop system as in figures 20
and 21 below.
FIGURE 16. DIGITAL PID COMPENSATOR
FIGURE 17. DESIGN PARAMETER INPUT WINDOW
FIGURE 18. SMALL SIGNAL DESIGN WINDOW
FIGURE 19. BODE PLOT
ISL6590
Primarion is a registered trademark of Primarion, Inc. Primarion PowerCode is a trademark of Primarion, Inc
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