Download - Intersil
![Page 1: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/1.jpg)
IntersilA Power Management CompanyInnovative PFC Control Solutions
Staff Applications Engineer
October 24, 2014Power Technology Innovation Application ForumShenzhen, China
Alan Yu
![Page 2: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/2.jpg)
• Intersil Overview
• Intersil’s Innovative Power Factor Correction (PFC) Controllers
• Advantages of PFC Control Solutions
• Intersil Support, Design Tools and Evaluation Boards
Agenda
2
![Page 3: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/3.jpg)
Intersil’s Core Capabilities and Technologies
Intelligent Power
Management
Multi-phase
Modulation
Radiation
Hardened & High
Reliability
Process and
Packaging
Precision
Analog
High Performance AnalogLight and motion sensingLaser driversVideo
Power ConversionVcore power management
Buck Boost/RegulationDigital Power
Best-in Class Rad HardIn-house ELDRS radiation
testing facilityMIL-PRF-38535 compliant
and 100% burned in
Innovative ProcessProprietary process technologyMulti-source, high reliability
3
![Page 4: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/4.jpg)
Four Product Groups Addressing Key Markets
Wired/Wireless InfrastructureServers and Storage
Industrial
Industrial & Infrastructure
SecurityMotion and Light Sensing
Specialty Analog
Specialty Products
Automotive RadHard Aerospace
High Precision Analog
Precision Products
Computing PCConsumer HandheldConsumer Display
Mobile Power
4
![Page 5: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/5.jpg)
PFC Controller Family: ISL6730A/B/C/D & ISL6731A/B • Patented Negative
Capacitance Technology- Better THD performance- Better PF performance- Smaller EMI filter components - Support high freq operation
• Switching Freq Jittering - 75%-100% by VIN pin voltage- Better conduction EMI Performance
• Intelligent Burst mode
- User adjustable pulse skipping level
PN Fosc Skip Mode Package StatusISL6730A 124kHz Yes-Fixed MSOP-10 ReleasedISL6730B 62kHz Yes-Fixed MSOP-10 ReleasedISL6730C 124kHz No MSOP-10 ReleasedISL6730D 62kHz No MSOP-10 ReleasedISL6731A 124kHz Yes-Programmable SOIC-14 ReleasedISL6731B 62kHz Yes-Programmable SOIC-14 Released
• Flexible packaging- 62K & 124K FSW option- 10 pin MSOP or 14 pin SOIC package
• Robust Design - CCM mode operation
• Extensive Protection- Input rail brownout protection- Adjustable OVP
• Better control over board response
- Dual protection from over current
• Cycle by Cycle Current Limit
• Input power limit
5
![Page 6: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/6.jpg)
Key Feature #1: Negative Capacitance Provides Low THD, High PF and Smaller Size Solution
Over load and line conditions:
Small phase shift High PF Low THD
Intersil’s PFC Controller Performance Outperforms the Digital
Controlled PFC
Without Requiring a MCU/DSP (and Firmware)
Superior Performance! and Low Cost!
Preferred application choice with very tight THD/PF spec
Time
18ms 20ms 22ms 24ms 26ms1 -I(V2) 2 V(VLINE,D6:2)
-1.0A
0A
1.0A1
-400V
0V
400V2
>>
Time
18ms 20ms 22ms 24ms 26ms1 -I(V2) 2 V(VLINE,D6:2)
-1.0A
0A
1.0A1
>>-400V
0V
400V2
VIN
Iin
PH Shift6
![Page 7: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/7.jpg)
Negative Capacitance Enables Smaller Size (Cont’d)• Allows Smaller X-Cap size while meeting or improving THD/PF
performance
• Allows shift of EMI filter after bridge rectifier
Eliminating the need for safety-grade parts
Reducing EMI filter cost and size
• Reduced system cost & size while meeting or improving THD
and PF performance
EMI Filter Moves After RectifierSTANDARD EMI Filter
C1 +C2+C3 = 1.04uF
C1 +C2+C3 - CEQ = 1.41uF - 1.09uF= 0.32uF Conventional Control
Negative Cap Control
7
![Page 8: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/8.jpg)
PFC
Problem with a Conventional PFC Solution
PFC EVAL BOARD: P = 300W,ONE CYCLE CONTROL
EMIC1, C2 Noise SuppressionL3, Differential Noise SuppressionL2, Common Mode Noise Suppression
L1
HEATSINK
L3
L2Im
Re
iC
ia
iin
va
q
Input voltage and current phasor diagram.
+va
ic1 iaic2
ic3
ic= ic1 + ic2 + ic3
iin
C1,2,3 prefer bigger size.
But limited by power factor requirement.
L3 is sized to meet the differential mode noise
attenuation.8
Bulky EMI Filter
![Page 9: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/9.jpg)
Intersil Solution: Create an Equivalent Negative Capacitor to Cancel Effect of the Input Capacitors
C I N
eqR
iinC E 2X2
C E 1X2
L 1C H O K E
13
25
L 2
L 3
iC ia
ip
C I N
eqC
icn
+
va
Im
Re
iC
iava
iinqicn
ipip = ia + icn
CONVENTIONAL CURRENT CONTROL
Time
18ms 20ms 22ms 24ms 26ms1 -I(V2) 2 V(VLINE,D6:2)
-1.0A
0A
1.0A1
-400V
0V
400V2
>>
VLINE
IL + ICIN
Time
18ms 20ms 22ms 24ms 26ms1 -I(V2) 2 V(VLINE,D6:2)
-1.0A
0A
1.0A1
>>-400V
0V
400V2
Current Control with CEQ
VLINE
IL + ICIN
iin = ip + ic
9
![Page 10: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/10.jpg)
FB
COMP
GATE
Vref
VIN
ISEN
GND
BO
ICOMP
Q 1 C OUT
VOUTL
R CS
C F1VLINE C F3
EMI CHOKE
RFB2
L m
CBO
D
COMPB
D F1D F2
V I
Gmv
C F2
RSEN
RIN2
RIN1
RFB1
SKIP
20uA
SKIP CLAMP
COMP-1V
RSKIP
Key Feature #2: ISL6731A/B’s Auto Skipping Provides High Efficiency @ Light Load
Programmable Skip Threshold (ISL6731A/B)
0.0 20.0 40.0 60.0 80.0 100.060.0065.0070.0075.0080.0085.0090.0095.00
100.00Efficiency vs Load
Skip Disabled Skip Enabled
LOAD (%)EFFIC
IEN
CY (
%)
10
![Page 11: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/11.jpg)
FB
COMP
GATECONTROL
LOGIC
Vref
GND
Q 1 C OUT
VOUTL
R CS
C F1VLINE C F3
EMI CHOKE
RFB2
L m
D
D F1
V I
Gmv
C F2
RFB1
OVP
Vro2
Vro1
ROV2
ROV1
Key Feature #3: Dedicate OVP Pin Provides Flexible, High Reliability Required for Industrial Applications
Dedicate OVP pin
(ISL6731A/B)
11
![Page 12: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/12.jpg)
FB
COMP
GATE
VCC
CONTROLLOGIC
Vref
VIN
ISEN
OSCILLATOR
PWM COMP
GND
OTP
VCC
BO
IFB
R IS
ICOMP
IREF
CEQ GEN
CURRENTMIRROR
OVER POWER LIMIT
SOFT-STARTENABLE
SKIP
20uA
SKIP CLAMP
SKIP
2: 1
Q 1 C OUT
VOUTL
COMP-1V
R CS
C F1VLINE C F3
EMI CHOKE
UVLO
RFB2
L m
CBO
D
I CS
COMPB
D F1D F2
CREG
LINEAR REGULATOR
VREG
V I
Gmi
Gmv
C F2
RSEN
RIN2
RIN1 RFB1
ICS > 0.5*|IOC |
Vcs=0.5*Ris*Isen
VIN*COMPB4*BO2
OVP
Vro2
Only for ISL6731
Vro1
ROV2
ROV1
Key Feature #4: Frequency Modulation Provides Low EMI
75
80
85
90
95
100
105Fosc vs Vin
VIN (V)Fsw
NO
RM
ALIZ
ED
(%
)
Frequency Modulation: reduces EMI filter size
12
![Page 13: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/13.jpg)
FB
COMP
Vref
C OUT
VOUT
RFB2
D
Gmv
RFB1IFB
Key Feature #5: Open Loop Protection Increases Reliability
When the FB pin is below 10%, the device is put into shutdown mode. There is an internal pull-down current source for open loop protection to avoid run-away.
13
![Page 14: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/14.jpg)
ISL673x: True Competitive Board Evaluation @ 300W
0.0 25.0 50.0 75.0 100.00
5
10
15
20
25
30
35
40
Ideg vs. Load 230Vac_UCC28019230Vac_ISL6730D230Vac_NCP1653A230Vac_ICE2PCS02
Load (%)
Deg
Intersil stands outIntersil & Competition tested under same circuit/condition
0.0 20.0 40.0 60.0 80.0 100.00.00
5.00
10.00
15.00
20.00 THD vs. Load230Vac_UCC28019230Vac_ISL6730D230Vac_NCP1653A230Vac_ICE2PCS02
Load (%)
TH
D (
%)
0.0 25.0 50.0 75.0 100.00.700000000000001
0.800000000000001
0.900000000000001
1 PF vs. Load
230Vac_UCC28019230Vac_ISL6730D230Vac_NCP1653A230Vac_ICE2PCS02
Load (%)
PF
14
Comp. A
Comp. BComp. C
Comp. A
Comp. BComp. CComp.
A
Comp. BComp. C
![Page 15: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/15.jpg)
ISL673x : Industry’s Best Performance @ 750W
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.088.0
90.0
92.0
94.0
96.0
98.0Efficiency vs. Load
230Vac-A 230Vac-B
115Vac-A 115Vac-B
Load (%)
Eff
(%
)
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.00.850000000000011
0.900000000000011
0.950000000000011
PF vs. Load
115Vac-A 115Vac-B
230Vac-A 230Vac-B
Spec
Load (%)
PF
0 10 20 30 40 50 60 70 80 90 1000
2
4
6
8
10
12
14 THD vs. Load
Spec 115/230V 115Vac-B
115Vac-A
Load (%)
TH
D (
%)
0 10 20 30 40 50 60 70 80 90 1000
1
2
3
4
5
6
7
8
9
10 THD vs. Load
Spec 115/230V Spec 230V
230Vac-B 230Vac-A
Load (%)
TH
D (
%)
15
Major Customer Spec
![Page 16: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/16.jpg)
Intersil PFC (AC/DC) + ZVS (DC/DC) at 750W
DC/DC ISL6754 AFB
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.00.850000000000001
0.900000000000001
0.950000000000001
1PF vs. Load
115Vac-B
230Vac-B
Spec
Load (%)
PF
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.00.00
4.00
8.00
12.00
16.00
20.00
24.00
28.00 THD vs. Load
115Vac-B
230Vac-B
Load (%)
TH
D (
%)
AC/DC ISL6731 PFC
16
Major Customer Spec
![Page 17: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/17.jpg)
Specs: • VIN=90V -
265VAC
• VO=390VDC
• 124×80×37 mm3
300W 64kHz ISL6730BEVAL1Z ISL6730DEVAL1Z
85W ISL6730AEVAL1Z ISL6730CEVAL1Z
Specs:• VIN=85V - 265VAC
• VO=390VDC
•Fosc=124kHz• 124x80x38 mm3
ISL6730BISL6730D
ISL6730AISL6730C
14
11
12
13
8
10
9
1
4
3
2
7
5
6
300W ISL6731AEVAL1Z (124kHz) ISL6731BEVAL1Z (64kHz)
ISL6731AISL6731B
Specs:• VIN=90V - 265VAC
• VO=390VDC
• 121x96x38 mm3
750W ISL6731AEVAL2Z (124kHz) ISL6731BEVAL2Z (64kHz)
17
Intersil Provides Full Evaluation Board Support
![Page 18: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/18.jpg)
• Best-in-Class PFC Controllers Outperform Digital Control
• Easy-to-Use PFC Solution with No Software Programming Required
• Highly Integrated with Full Feature-Set Provides a Low Cost Solution to Challenging Power System Designs
• Excellent Engineering Support with Design Tools and Evaluation Boards
Intersil Delivers Innovative PFC Control Solutions
18
![Page 19: Intersil](https://reader030.vdocuments.site/reader030/viewer/2022033101/568131eb550346895d984eb3/html5/thumbnails/19.jpg)
www.intersil.com