Transcript of Intersil A Power Management Company Innovative PFC Control Solutions Staff Applications Engineer...
- Slide 1
- Intersil A Power Management Company Innovative PFC Control
Solutions Staff Applications Engineer October 24, 2014 Power
Technology Innovation Application Forum Shenzhen, China Alan
Yu
- Slide 2
- Intersil Overview Intersils Innovative Power Factor Correction
(PFC) Controllers Advantages of PFC Control Solutions Intersil
Support, Design Tools and Evaluation Boards Agenda 2
- Slide 3
- Intersils Core Capabilities and Technologies Intelligent Power
Management Multi- phase Modulation Radiation Hardened & High
Reliability Process and Packaging Precision Analog High Performance
Analog Light and motion sensing Laser drivers Video Power
Conversion Vcore power management Buck Boost/Regulation Digital
Power Best-in Class Rad Hard In-house ELDRS radiation testing
facility MIL-PRF-38535 compliant and 100% burned in Innovative
Process Proprietary process technology Multi-source, high
reliability 3
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- Four Product Groups Addressing Key Markets Wired/Wireless
Infrastructure Servers and Storage Industrial Industrial &
Infrastructure Security Motion and Light Sensing Specialty Analog
Specialty Products Automotive RadHard Aerospace High Precision
Analog Precision Products Computing PC Consumer Handheld Consumer
Display Mobile Power 4
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- 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 PNFoscSkip ModePackageStatus
ISL6730A124kHzYes-FixedMSOP-10Released
ISL6730B62kHzYes-FixedMSOP-10Released
ISL6730C124kHzNoMSOP-10Released ISL6730D62kHzNoMSOP-10Released
ISL6731A124kHzYes-ProgrammableSOIC-14Released
ISL6731B62kHzYes-ProgrammableSOIC-14Released 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
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- 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 Intersils PFC Controller Performance
Outperforms the Digital Controlled PFC Without Requiring a MCU/DSP
(and Firmware) Superior Performance! and Low Cost! Superior
Performance! and Low Cost! Preferred application choice with very
tight THD/PF spec VIN Iin PH Shift 6
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- Negative Capacitance Enables Smaller Size (Contd) 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
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- PFC Problem with a Conventional PFC Solution PFC EVAL BOARD: P
= 300W, ONE CYCLE CONTROL EMI C1, C2 Noise Suppression L3,
Differential Noise Suppression L2, Common Mode Noise Suppression L1
HEATSINK L3 L2 Input voltage and current phasor diagram. +va+va i
c1 iaia i c2 i c3 i c = i c1 + i c2 + i c3 i in 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
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- Intersil Solution: Create an Equivalent Negative Capacitor to
Cancel Effect of the Input Capacitors Im Re iCiC iaia vava i in i
cn ip ip = ia + icn CONVENTIONAL CURRENT CONTROL V LINE I L + I CIN
Current Control with CEQ V LINE I L + I CIN ic iin = ip + ic 9
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- Key Feature #2: ISL6731A/Bs Auto Skipping Provides High
Efficiency @ Light Load Programmable Skip Threshold (ISL6731A/B)
10
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- Key Feature #3: Dedicate OVP Pin Provides Flexible, High
Reliability Required for Industrial Applications Dedicate OVP pin
(ISL6731A/B) 11
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- Key Feature #4: Frequency Modulation Provides Low EMI Frequency
Modulation: reduces EMI filter size 12
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- 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
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- ISL673x: True Competitive Board Evaluation @ 300W Intersil
stands out Intersil & Competition tested under same
circuit/condition 14 Comp. A Comp. B Comp. C Comp. A Comp. B Comp.
C Comp. A Comp. B Comp. C
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- ISL673x : Industrys Best Performance @ 750W 15 Major Customer
Spec
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- Intersil PFC (AC/DC) + ZVS (DC/DC) at 750W DC/DC ISL6754 AFB
AC/DC ISL6731 PFC 16 Major Customer Spec
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- Specs: V IN =90V - 265V AC V O =390V DC 1248037 mm 3 300W 64kHz
ISL6730BEVAL1Z ISL6730DEVAL1Z 85W ISL6730AEVAL1Z ISL6730CEVAL1Z
Specs: V IN =85V - 265V AC V O =390V DC Fosc=124kHz 124x80x38 mm 3
ISL6730B ISL6730D ISL6730A ISL6730C 300W ISL6731AEVAL1Z (124kHz)
ISL6731BEVAL1Z (64kHz) ISL6731A ISL6731B Specs: V IN =90V - 265V AC
V O =390V DC 121x96x38 mm 3 750W ISL6731AEVAL2Z (124kHz)
ISL6731BEVAL2Z (64kHz) 17 Intersil Provides Full Evaluation Board
Support
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- 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
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- www.intersil.com