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參數(shù)資料
| 型號： | L6701 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 3 Phase Controller for VR10, VR9 and K8 CPUs |
| 中文描述： | 3 VR10，VR9和K8處理器相控制器 |
| 文件頁數(shù)： | 37/44頁 |
| 文件大?。?/td> | 492K |
| 代理商： | L6701 |
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L6701
15 System Control Loop Compensation
37/44
15.1 Compensation Network Guidelines
The Compensation Network design assures to having system response according to the cross-
over frequency selected and to the output filter considered: it is anyway possible to further fine-
tune the compensation network modifying the bandwidth in order to get the best response of
the system as follow (See
Figure 19
):
Increase R
F
to increase the system bandwidth accordingly;
Decrease R
F
to decrease the system bandwidth accordingly;
Increase C
F
to move
ω
F
to low frequencies increasing as a consequence the system
phase margin.
●
●
●
Having the fastest compensation network gives not the confidence to satisfy the requirements
of the load: the inductor still limits the maximum dI/dt that the system can afford. In fact, when a
load transient is applied, the best that the controller can do is to “saturate” the duty cycle to its
maximum (d
MAX
) or minimum (0) value. The output voltage dV/dt is then limited by the inductor
charge / discharge time and by the output capacitance. In particular, the most limiting transition
corresponds to the load removal since the inductor results being discharged only by V
OUT
(while it is charged by d
MAX
V
IN
-V
OUT
during a load appliance).
Referring to
Figure 19
-left, further tuning the Compensation network cannot give any
improvements unless the output filter changes: only modifying the main inductors or the output
capacitance improves the system response.
Figure 19. Best Load Transient achievable (d=0) and R
F
-C
F
impact on Bandwidth.
dB
ω
Z
F
(s)
G
LOOP
(s)
K
ω
LC
=
ω
F
ω
ESR
ω
T
R
F
[dB]
R
F
C
F
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| L6701TR | 功能描述:DC/DC 開關(guān)控制器 3 Phase Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6706 | 制造商:STMicroelectronics 功能描述:DC DC Cntrlr Single-OUT Step Down 40-Pin VFQFPN EP Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:8-Bit VR11.1 Single CTRL w/int Driver |
| L6706TR | 功能描述:DC/DC 開關(guān)控制器 VR11.1 SINGLE PHASE CNTRL W/INT DRI RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6709 | 功能描述:功率驅(qū)動器IC 6-Bit Dual Ph Contlr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L6709TR | 功能描述:功率驅(qū)動器IC 6-Bit Dual Ph Contlr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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