전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

CS1500 데이터시트(PDF) 8 Page - Cirrus Logic

부품명 CS1500
상세설명  Digital Power Factor Correction IC
Download  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  CIRRUS [Cirrus Logic]
홈페이지  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS1500 데이터시트(HTML) 8 Page - Cirrus Logic

Back Button CS1500_1 Datasheet HTML 4Page - Cirrus Logic CS1500_1 Datasheet HTML 5Page - Cirrus Logic CS1500_1 Datasheet HTML 6Page - Cirrus Logic CS1500_1 Datasheet HTML 7Page - Cirrus Logic CS1500_1 Datasheet HTML 8Page - Cirrus Logic CS1500_1 Datasheet HTML 9Page - Cirrus Logic CS1500_1 Datasheet HTML 10Page - Cirrus Logic CS1500_1 Datasheet HTML 11Page - Cirrus Logic CS1500_1 Datasheet HTML 12Page - Cirrus Logic Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 22 page
background image
CS1500
8
DS849A7
Jul ?$shortyear>
CONFIDENTIAL
3.1 PFC Operating Frequency
One key feature of the CS1500 is its operating frequency
profile. Figure 10 illustrates how the frequency varies over half
cycle of the line voltage in steady-state operation. When
power is first applied to the CS1500, it first examines the line
voltage and adapts its operating frequency to the exposed line
voltage as shown in Figure 11. The operating frequency is
varied in about a 2-to-1 ratio from the peak to the trough.
During start-up the control algorithm limits the maximum on-
time, provides nearly square-wave envelop current within
every half line cycle by adjusting the operating frequency for
fast startup behavior.
Figure 10. Switching Frequency vs. Phase Angle
Figure 11. Switching Frequency vs. Output Power
Figure 11 illustrates how the operating frequency (as a
percentage of maximum frequency) changes with output
power and the peak of the line voltage. Burst mode (when Po
below 5%) will be discussed in a later section.
The CS1500 is designed to function as a DCM (discontinuous
conduction mode) controller, however it may operate in a
quasi-CRM operation mode near the peak periods. For
90~265VAC main input applications, PFC can be also
designed in quasi-CRM at a peak of 90VAC and full load as
shown in Figure 12.
Figure 12. DCM and quasi-CRM Operation with CS1500
3.2 Start-up vs. Normal Operation Mode
CS1500 has two discrete operation modes: Start-up and
Normal. Start-up mode will be activated when Vlink is less than
90% of nominal value and remains active until Vlink reaches
100% of nominal value, as shown in Figure 13. Startup mode
is activated during initial system power-up. Any Vlink drop to
less than 90% of nominal value, such as load change, can
cause the system to enter Start-up Mode until Vlink is brought
back into regulation.
Figure 13. Start-up and Normal Modes
3.3 Burst Mode
Burst mode is utilized to improve system efficiency when the
system output power (Po) is < 5% of nominal. Burst mode is
implemented by intermittently disabling the PFC over a full
half-line period cycle under light load conditions, as shown in
Figure 14.
0
20
40
60
80
100
120
045
90
135
180
Rectified Line Voltage Phase (Deg.)
Switching Freq. (% of Max.)
Line Voltage (% of Max.)
% PO max
Vin < 150 VAC
20
70
50
60
40
40
5
20
0
60
80
100
Vin > 150 VAC
46
56
DCM
Quasi CRM
DCM
Quasi CRM
DCM
ILB
t [ms]
IAC
t [ms]
Vlink
[V]
100%
90%
Normal
Mode
Normal
Mode


유사한 부품 번호 - CS1500_1

제조업체부품명데이터시트상세설명
logo
Cirrus Logic
CS1500-FSZ CIRRUS-CS1500-FSZ Datasheet
842Kb / 22P
   Digital Power Factor Correction IC
More results

유사한 설명 - CS1500_1

제조업체부품명데이터시트상세설명
logo
Cirrus Logic
CS1500 CIRRUS-CS1500 Datasheet
842Kb / 22P
   Digital Power Factor Correction IC
CS1501 CIRRUS-CS1501 Datasheet
820Kb / 11P
   Digital Power Factor Correction Control IC
logo
Renesas Technology Corp
HA16178P RENESAS-HA16178P Datasheet
282Kb / 25P
   Power Factor Correction Controller IC
logo
Rohm
BD7695FJ ROHM-BD7695FJ Datasheet
1Mb / 27P
   Power Factor Correction Controller IC
15.Jul.2022 Rev.001
logo
Renesas Technology Corp
R2A20111SP RENESAS-R2A20111SP Datasheet
308Kb / 41P
   Power Factor Correction Controller IC
logo
Rohm
BD7690FJ ROHM-BD7690FJ Datasheet
2Mb / 26P
   Power Factor Correction Controller IC
logo
Princeton Technology Co...
PT5634 PTC-PT5634 Datasheet
373Kb / 4P
   Power Factor Correction Control IC
PT5634A PTC-PT5634A Datasheet
356Kb / 4P
   Power Factor Correction Control IC
logo
Renesas Technology Corp
R2A20111SP RENESAS-R2A20111SP_16 Datasheet
266Kb / 8P
   Power Factor Correction Controller IC
R2A20111SP RENESAS-R2A20111SP_09 Datasheet
124Kb / 8P
   Power Factor Correction Controller IC
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   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