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參數(shù)資料
| 型號： | SP6133ER1 |
| 英文描述： | Evaluation Board Manual |
| 中文描述： | 評估板手冊 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 519K |
| 代理商： | SP6133ER1 |
Rev 3/30/06 SP6133 Evaluation Manual Copyright 2006 Sipex Corporation
Page 5 of 10
LOOP COMPENSATION DESIGN
The open loop gain of the SP6133EB can be divided into the gain of the error amplifier
Gamp(s)
, PWM modulator
Gpwm
, buck converter output stage
Gout(s)
, and feedback
resistor divider
Gfbk
. In order to cross over at the selected frequency
fc
, the gain of the
error amplifier must compensate for the attenuation caused by the rest of the loop at
this frequency. The goal of loop compensation is to manipulate the open loop frequency
response such that its gain crosses over 0dB at a slope of –20dB/dec.
The open loop crossover frequency should be higher than the ESR zero of the output
capacitors but less than 1/5 of the switching frequency
fs
to insure proper operation.
Since the SP6133EB is designed with ceramic type output capacitors, a Type III
compensation circuit is required to give a phase boost of 180
°
in order to counteract the
effects of the output
LC
under damped resonance double pole frequency.
Figure 11. SP6133EB Voltage Mode Control Loop with Loop Dynamic
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PDF描述 |
|---|---|
| SP61346 | Dual Supply Synchronous Buck Controller |
| SP6134HEU | High Voltage, 600 KHz Synchronous PWM Controller |
| SP6134H | High Voltage, 600 KHz Synchronous PWM Controller |
| SP6134HCU | High Voltage, 600 KHz Synchronous PWM Controller |
| SP6136 | Evaluation Board Manual |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6133ER1/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Synchronous Buck Controller |
| SP6133ER1-L | 功能描述:DC/DC 開關(guān)控制器 Synchronous Buck 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 |
| SP6133ER1-L/TR | 功能描述:DC/DC 開關(guān)控制器 Synchronous 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 |
| SP6134 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Dual Supply Synchronous Buck Controller |
| SP6134_06 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Dual Supply Synchronous Buck Controller |
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