전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

L7980 데이터시트(PDF) 24 Page - STMicroelectronics

부품명 L7980
상세설명  2 A step-down switching regulator
PDF  44 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7980 데이터시트(HTML) 24 Page - STMicroelectronics

Back Button L7980 Datasheet HTML 20Page - STMicroelectronics L7980 Datasheet HTML 21Page - STMicroelectronics L7980 Datasheet HTML 22Page - STMicroelectronics L7980 Datasheet HTML 23Page - STMicroelectronics L7980 Datasheet HTML 24Page - STMicroelectronics L7980 Datasheet HTML 25Page - STMicroelectronics L7980 Datasheet HTML 26Page - STMicroelectronics L7980 Datasheet HTML 27Page - STMicroelectronics L7980 Datasheet HTML 28Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 24 / 44 page
background image
Application informations
L7980
24/44
Doc ID 15181 Rev 4
6.4.2
Type II compensation network
If the equivalent series resistance (ESR) of the output capacitor introduces a zero with a
frequency lower than the desired bandwidth (that is: 2
π∗ESR∗COUT>1/BW), this zero helps
stabilize the loop. Electrolytic capacitors show not negligible ESR (>30 m
Ω), so with this
kind of output capacitor the type II network combined with the zero of the ESR allows
stabilizing the loop.
In Figure 13 the type II network is shown.
Figure 13.
Type II compensation network
The singularities of the network are:
In Figure 14 the Bode diagram of the PWM and LC filter transfer function (GPW0 · GLC(f))
and the open loop gain (GLOOP(f) = GPW0 · GLC(f) · GTYPEII(f)) are drawn.
f
Z1
1
2
π R
4
C
4
⋅⋅
------------------------------
=
f
P0
0
=
f
P1
1
2
π R
4
C
4
C
5
⋅
C
4
C
5
+
--------------------
⋅⋅
--------------------------------------------
=
,,



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com