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FAIRCHILD FAN9611 FAN9612 Manual

1. Phenolic PQ3230 ven Tai l Electric Wire amp Cable Co Ltd E85640 S 3 Wire ae Jung Shing Wire Co Ltd E174837 130 C UEW B _ 130 C Chuen Yih wire co Ltd E154709 5 pisi John C Dolph Co Ltd E51047 M 4 Varnish TEES Ripley Resin Engineering Co Inc E81777 N 130 C Polyester 3M 17385 5 Tape 1350 130 C Minnesota mining amp MFG Co Ltd 0 025tmm 31CT 130 C Nitto Denko Corp E34833 M Teflon tube 6 Tube TFS Great Holding Industrial Co Ltd E156256 5 600V 200 C Copper wire TEL 02 2945 0588 Guo long Huang IDENT TRN 0256 FAX 02 2944 7647 No 26 1 Lane 128 Sec 2 Singnan Rd Jhonghe City Taipei County 235 Taiwan R O C SEN HUEI INDUSTRIAL CO LTD I3205 2009 Fairchild Semiconductor Corporation 11 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 ESS FAIRCHILD EECH SEMICONDUCTOR www fairchildsemi com 7 Bill of Materials Component Qty Fang Reference era 1 em es A Resistor 0805 14K7 amp 1 nl qJqRB 0 esr 5 okay Segen 31 e ET m eon O05 m ES E m CS m 1 _ SI ee EE
2. i ri VOUZEPOUS 5 59 23 FM VOLZEPOUS 5 21 23 Figure 17 230Vac 100 to 0 Line Transient Figure 18 230Vac 0 to 100 Line Transient Note 7 Figure 17 and Figure 18 show the load transient operation When the output load changes from 100 to 0 23 6V 6 196 of nominal output voltage voltage overshoot is observed When the output load changes from 096 to 10096 23 9V 6 1396 of nominal output voltage voltage undershoot is observed 18 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 2009 Fairchild Semiconductor Corporation FAIRCHILD www fairchildsemi com SEMICONDUCTOR 8 4 Brown in out Protection Test Condition startup and shutdown when slowly increasing and decreasing the line voltage G 2 gt Min HE EN T NM M GL SA S NA Mr NE NM JE 2000 V 183 Fri 523 2003 3 53 52 PM fe J 9 23 2009 34824PM Figure 19 Brownin Figure 20 Brownout Note 8 Figure 19 and Figure 20 show the startup and shutdown operation at slowly increasing and decreasing line voltage respectively The power supply starts when the line voltage reaches around 80VAc and shuts down when line voltage drops below 70Vac 2009 Fairchild Semiconductor Corporation AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 EIE FAIRCHILD EE SEMICONDUCTOR www fairchildsemi com 8 5 Phase Management Test Co
3. 3 Some s wem owmexm 1 we ee A 0805 MLCC X7R 10 103P 50V ozosom 0805 MLCC X7R 10 473P 50V 0805 MLCC X7R 10 104P 50V a ecxmwesem e ese rR vans ere a 0805 MLCC X7R 10 224P 50V e AAEN 0805 MLCC X7R 10 225P 25V EBENEN 1 0805 MLCC X7R 10 683P 50V no m 2009 Fairchild Semiconductor Corporation 12 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD EECH S SEMICONDUCTOR www fairchildsemi com Bill of Materials Continued Component Jon pont Medus ra pair ao zoe Seege gare ees en CE em MPP Capacitor 0 15uF 400V 5 1 MPP154J2G15 ALLRISE SX1 S474 X1 Capacitor 0 47 300V 10 WEE SHINY XC1 XC2 XC3 Mode Choke aime SENHUE Jus coon ner Faso Tan 2 eme woo 1 oe a007 Jesse EE 9B Rate oW S009 1 mrosoo rarena someoraucor os EREECHEN 1 forse sex fn _ CE Farm _ oarosusonevs _ 2009 Fairchild Semiconductor Corporation 13 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD E SEMICONDUCTOR www fairchildsemi com RER FAIRCHILD SERICOBRDLCTOR FCS0390 REW4 FANS612 400W INTERLEAVED PFC CONVERTER Top Overlay Figure 4 PCB L
4. Corporation 3 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD EECH SEMICONDUCTOR WWW fairchildsemi com 3 Test Procedures Before testing the board DC voltage supply for VDD AC voltage supply for line input and DC electric load for output should be connected to the board properly 1 Supply Vi for the control chip first It should be higher than 13V refer to the specification for Vpp turn on threshold voltage SS When Vpp is supplied a click sound from the relay 15 heard This is normal Since the inrush current limit relay is turned on by 5V reference pin 3 the relay turns on when FAN9611 FAN9612 comes out of UVLO by supplying Vpp higher than 13V 3 Connect the AC voltage 90 264 to start the FAN9611 FAN9612 Since FAN9611 FAN9612 has brownout protection and line OVP any input voltages out of operation range trigger protections 4 Change load current 0 1A and check the operation The board is designed to go into phase shedding for output power below around 55W It goes back to two channel interleaving operation for output power above around 110W Table 1 Test Equipment Test Model FEB301 001 Test Date Sept 7 2009 Test Temperature AC Source Chroma 61603 AC POWER SOURCE Electronic Load Chroma 63108 Test Equipment Power Meter WT210 Oscilloscope Lecroy wavesurfer 24Xs DC Source ABM 9306D Brown in out Protection Phase Management Efficiency Harmonic D
5. observed for full load startup 2009 Fairchild Semiconductor Corporation 16 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD re eee SEMICONDUCTOR WWW fairchildsemi com 8 2 Normal Operation Test Condition Inductor current of 115Vac 60Hz 230Vac 50Hz full load Pme ti Pinata P 1 2 Pirmi Pa phpkic 1 P5 2 555 V LEE 211 mv Wis fiaiv 211 my Ld C w Ld latus Ld Ld w Ce 4 SO malts SEO C50 x1z 9 801859 x 210I re Mae 0500 me d s 474605 S00 Jitma 8 d UD SP SOMME 30 MEA En Er Kl 19 63939 Ax 240000 149 45 200 8 22 2008 8 Ap 18 PM SIO 0 33 07 Figure 11 115 60Hz Full Load Figure 12 115 60Hz Full Load Note 4 Figure 11 and Figure 12 show the two inductor currents and the sum of two inductor currents at 115Vac line voltage and full load conditions The sum of the inductor currents has relatively small ripple due to the ripple cancellation of interleaving operation Pa 1 P5 Pi met T Pinna I3 nmie c m Fa PS 2500 NaN 229 4 V 170 my 25797 217 2 228 1 V 171 mv u 200 200 EIE Mis i 8 22 2008 9 58 15 PM Figur
6. 18 OUMErTOtECtION nenne ENEE 19 To lamdeement OR EEN 20 SOEUR 21 9 7 Harmonic Distortion and Power Factor hene 22 M Los 24 2009 Fairchild Semiconductor Corporation 2 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD ER SEMICONDUCTOR www fairchildsemi com The following user guide supports the FAN9611 FAN9612 400W evaluation board for interleaved boundary conduction mode power factor corrected supply The user guide should be used in conjunction with the FAN9611 FAN9611 FAN9612 datasheet as well as the Fairchild application note AN 6086 Design Considerations for Interleaved Boundary Conduction Mode PFC Using FAN9611 FAN9612 The user guide and the evaluation board can also be used to evaluate FAN9611 controller which has the lower turn on threshold Please visit Fairchild S website at www fairchildsemi com for information 1 Overview of the Evaluation Board The FAN9611 FAN9612 interleaved dual Boundary Conduction Mode BCM Power Factor Correction PFC controller operates two parallel connected boost power trains 180 out of phase Interleaving extends the maximum practical power level of the control technique from about 300W to greater than 800W Unlike the continuous conduction mode CCM technique often used at higher power levels BCM offers inherent zero current swit
7. Ee FAIRCHILD SEMICONDUCTOR www fairchildsemi com User Guide for AN 8026 FAN9611 FAN9612 400W 1 Layer Evaluation Board FEB 301 Featured Fairchild Product FAN9611 FAN9612 Direct questions or comments about this Evaluation Board to Worldwide Direct Support Fairchild Semiconductor com 2009 Fairchild Semiconductor Corporation AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD SEMICONDUCTOR www fairchildsemi com Table of Contents D ADV CIV EE 3 General LICE 3 Test Procedures ERE ANM 4 M eeu RU eoo mm 6 specification 7 Boost Inductor Specification S 9 6 1 Electrical Specification 10 Bill of Materials 12 Test Results eg enen scccscccveccevcuevcuccceccneccoseccescccssesesercveuceseces 16 8 1 Stains 16 8 2 17 8 3
8. OR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY FUNCTION OR DESIGN FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS NOR THE RIGHTS OF OTHERS LIFE SUPPORT POLICY FAIRCHILD S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems which a 2 Acritical component is any component of a life support device or are intended for surgical implant into the body or b support or system whose failure to perform can be reasonably expected to sustain life or c whose failure to perform when properly used in cause the failure of the life support device or system or to affect accordance with instructions for use provided in the labeling can its safety or effectiveness be reasonably expected to result in significant injury to the user NTI COUNTERFEITING POLICY Fairchild Semiconductor Corporation s Anti Counterfeiting Policy Fairchild s Anti Counterfeiting Policy is also stated on our external website www fairchildsemi com under Sales Support Counterfeiting of semiconductor parts is a growing problem in the industry All manufacturers of semiconductor
9. R E i R 49 9K 0805 680 1206 R 580K 1206 R 680K 1206 Q8 5 A A 1 1 2 8 9 RI RI3 RIS R17 L 9mH SEDI NAN 2 12V O LI e 4 AR680K 1206 R 580K 1206 R 680K 1206 f R35 JP WE LES gis S CN XC C 4TuF 300V RN u S LS iE Fd XC JP 25mm R 430K 12 2 f M R23 E S Se ANS A e 2 dh 0805 12 R 430K 1206 CH HUNT VOUS R43 K 1206 R20 ole C F I0A 250V RIS RI9 R21 o TP 20mm C2 CIS LCI8 HS 20X1C0mm HS 20XS0mm 1 4 1 7 1 10 JP13 JP16 19 H52 HS IP 20mm JP 5mm JP i Srm 15 Smm JP 7 5mm SE ry es IX CH ASIOSWV2 3P D Ps 4 Ops iia rut 2 0 9 JP R 120 mm JP 10mm JP 17 5mm IPA 5mm JP 15mm JP 5mm 5mm 4 Schematic 5 JP 0R 080 JP 20mm JP NC wma FI M a 4 1 FAN9611 FAN9612 400W Evaluation Board Schematic Figure 2 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 2009 Fairchild Semiconductor Corporation FAIRCHILD SEMICONDUCTOR 5 Specification Approval Customer Fairchild Semiconductor TRN 0197 www fairchildsemi com Dimension Unit mm Black Glue Middle partition board thickness of 2mm Safety Regulation Electrical Specification 1kHz 1V Inductance L1 L2 9 0mH minimum DC Resistance L1 L2 0 05Q maximum Turn
10. and Wire L1 L2 0 9 x 30 5TSx2 Materials List component __ materai Wees ______ PACIFIC Wire amp Cable WE UEWE Electric Wire amp Cable Ltd NN UWY Jang Shing Wire Co Ltd 3 Solder 96 596 Sn 3 0 5 Cu Xin Yuan Co Ltd TEL 02 29450588 Guo long Huang IDENT TRN 0197 FAX 02 29447647 No 26 1 Lane 128 Sec 2 Singnan Rd Jhonghe City SEN HUEI INDUSTRIAL CO LTD Taipei County 235 Taiwan R O C 2009 Fairchild Semiconductor Corporation 7 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 EES FAIRCHILD SEMICONDUCTOR www fairchildsemi com Fairchild Semiconductor P N TRN 0256 lt 34 i 1 12 2 9800 0 8 0 1 Bottom view Top View Notes 1 Pin 1 6 7 8 10 11 12 removed 2 Addinsulation tape 3 turns to fix core and bobbin 3 Thered symbol indicates first pin TEL 02 2945 0588 Guo long Huang IDENT TRN 0256 FAX 02 2944 7647 No 26 1 Lane 128 Sec 2 Singnan Rd Jhonghe City SEN HUEI INDUSTRIAL CO LTD 13205 Taipei County 235 Taiwan R O C 2009 Fairchild Semiconductor Corporation 8 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 ESS FAIRCHILD Re eee SEMICONDUCTOR www fairchildsemi com Fairchild Semiconductor TRN 0256 6 Boost Inductor Specification Outside Inside ___ Diameter Thickness ND Core 203230 A
11. ayout Top Overlay mottof Figure 5 PCB Layout Bottom Layer 2009 Fairchild Semiconductor Corporation 14 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 E FAIRCHILD CR SEMICONDUCTOR www fairchildsemi com Figure 6 PCB Layout Bottom Overlay 2009 Fairchild Semiconductor Corporation 15 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD re eee SEMICONDUCTOR WWW fairchildsemi com 8 Test Results 8 1 Startup Test Condition 115Vac 60Hz 230Vac 50Hz no load and full load Sr M E Sn LA iim Sr ga uu A Lini FE H ms PE Mane Poma PY Pa Pe value value v ex T 10 Mis edge rie L D Letroy B TWIDDS 228 10 PM BIT3I2008 2 23 53 Figure 7 115Vac 60Hz No Load Figure 8 115V4c 60Hz Full Load Note 2 Only 29V overshoot is observed 7 44 of nominal output voltage for no load startup and only 18V 4 62 of normal output voltage overshoot is observed for full load startup a ME E B Ah Jop a a 42 WA E ln A Px P Fm ti Pd FS FE 406 v 10 0 DUD rrivrdm 1 w giat DO SD 2 10 58 PM S008 230732 Figure 9 230V4c 50Hz No Load Figure 10 230V4c 50Hz Full Load Note 3 Only 17V overshoot is observed 4 36 of nominal output voltage for no load startup and only 18V 4 62 of normal output voltage overshoot is
12. c 161 iui Bobbin 230 Inductance 200UH Figure 3 Boost Inductor in the FAN9611 FAN9612 Evaluation Board Pins 2 4 5 add tube ES 02 2044 7647 2944 7647 ECT 1 Lane 128 EL 2 Singnan Rd Jhonghe City SEN HUEI INDUSTRIAL CO LTD D W G 13205 Taipei County 235 Taiwan R O C 2009 Fairchild Semiconductor Corporation 9 AN 8026 _ 9611 FAN9612 Rev 0 0 4 ESS FAIRCHILD EECH SEMICONDUCTOR www fairchildsemi com 6 1 Electrical Specification Inductance Test at 1 2 1V P 5 3 200uH 5 DC Resistance test at Ta 25 C 5 3 62 44m X maximum 2 4 196 710 maximum Hi Pot Test AC 1000V 60Hz 0 5mA hi pot for one minute between pri to sec AC 500V 60Hz 0 5mA hi pot for one minute between pri to core Insulation Test The insulation resistance is between pri to sec and windings to core measured by DC 500V Must be over 100MQ Terminal Strength Kg on terminals for 30 seconds test the breakdown UNIT m m DRAWN CHECK TITLE lI B FAX 02 2944 7647 No 26 1 Lane 128 Sec 2 Singnan Rd Jhonghe City SEN HUEI INDUSTRIAL CO LTD Taipei County 235 Taiwan R O C 2009 Fairchild Semiconductor Corporation 10 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 ESS FAIRCHILD E SEMICONDUCTOR WWW fairchildsemi com Customer Fairchild Semiconductor P N TRN 0256 Materials List
13. childsemi com 9 References FAN9611 FAN9612 Interleaved Dual BCM PFC Controller AN 6086 Design Consideration for Interleaved Boundary Conduction Mode BCM PFC Using FAN9611 FAN9612 8018 FAN9611 FAN9612 400W Interleaved Dual BCM PFC Controller Evaluation Board User Guide WARNING AND DISCLAIMER Replace components on the Evaluation Board only with those parts shown on the parts list or Bill of Materials in the Users Guide Contact an authorized Fairchild representative with any questions This board is intended to be used by certified professionals in a lab environment following proper safety procedures Use at your own risk The Evaluation board or kit is for demonstration purposes only and neither the Board nor this User s Guide constitute a sales contract or create any kind of warranty whether express or implied as to the applications or products involved Fairchild warrantees that its products meet Fairchild s published specifications but does not guarantee that its products work in any specific application Fairchild reserves the right to make changes without notice to any products described herein to improve reliability function or design Either the applicable sales contract signed by Fairchild and Buyer or if no contract exists Fairchild s standard Terms and Conditions on the back of Fairchild invoices govern the terms of sale of the products described herein DISCLAIMER FAIRCHILD SEMICONDUCT
14. ching of the boost diodes no reverse recovery losses which permits the use of less expensive diodes without sacrificing efficiency Furthermore the input and output filters can be smaller due to ripple current cancellation between the power trains and effectively doubling the switching frequency The advanced line feedforward with peak detection circuit minimizes the output voltage variation during line transients To guarantee stable operation with less switching loss at light load the maximum switching frequency is clamped at 600kHz Synchronization is maintained under all operating conditions Built in protection functions include output over voltage over current open feedback under voltage lockout brownout and redundant latching over voltage The FAN9611 FAN9612 is available in a lead free 16 lead SOIC package Fairchild offers and evaluation board to aide in design and test of applications using the FAN9611 FAN9612 The FAN9611 FAN9612 evaluation board is a single layer board designed for 400W 400V 1A rated power Thanks to the phase management the efficiency is maintained above 95 at low line and high line even down to 10 of the rated output power The efficiencies for full load condition are 96 3 and 98 0 at line voltages of 115V Ac and 230V respectively 2 General Specification Specification Mi Me Units Total Output Power Maximum Load Output Power 2009 Fairchild Semiconductor
15. e ultimate destination listed on the commercial invoice Diversion contrary to U S law is prohibited U S origin products and products made with U S origin technology are subject to U S Re export laws In the event of re export the user will be 2009 Fairchild Semiconductor Corporation 24 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4
16. e 13 230Vac 50Hz Full Load Figure 14 230Vac 50Hz Full Load Note 5 Figure 13 and Figure 14 show the two inductor currents and the sum of two inductor currents at 230 line voltage and full load conditions The sum of the inductor currents has relatively small ripple due to the ripple cancellation of interleaving operation 2009 Fairchild Semiconductor Corporation 17 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 lm FAIRCHILD www fairchildsemi com SEMICONDUCTOR 8 3 Line and Load Transient Test Condition 115Vac to 230Vac full load transient and 230Vac load transient a 42 EM Ti 0 da IVA AAA Pa FS P zelt mn i 15 GER EE ees e Si OUI 2 50 E 28 PM Figure 16 115Vac to 230Vac Line Transient m Fm x 404 p v ETT 21 FM Figure 15 230Vac to 115 Line Transient Note 6 Figure 15 and Figure 16 show the line transient operation and minimal effect on the output voltage due to the line feed forward function When the line voltage changes from 230Vac to 115Vac 14 5V 3 72 of nominal output voltage voltage undershoot is observed When the line voltage changes from 115 to 230 almost no voltage undershoot is observed a of a of E EN i ui TA il TIT JAAA e na AAA AAA BANANA i nant 1 PI w
17. istortion and Power Factor Test Items 2009 Fairchild Semiconductor Corporation 4 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD NEEN SEMICONDUCTOR www fairchildsemi com I ji jl Figure 1 Photograph of Tested Board 2009 Fairchild Semiconductor Corporation 5 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD www fairchildsemi com SEMICONDUCTOR l gt OBR Vip DIESIJ BDI BD KBJ1006 D S 3 2 E 2 d x 3 Z e D FFPF08S60S 2 R 4 7R 1206 A Q2 5 8 4445 NTC 1205 5 S 89013 C 102pF 0805 e NTC SCK 132R56 S e RIE 5 T 4 ei o 22 2 2 8 2 5 Y 3 v oxi DRV2 S ls SVB SVB Ul E 8 XC3 S U FAN9611 FAN9512 5 lo o R I K 0805 t R26 NK A 4 XC 0 47uF 300V R 1K 0808 S C2 R24 R6 2 4 am 1 SC 225pF 080 R 1K 0805 VDD D6 R22mR 1812 3 5VB B d l4 4 v Boas H s a 3 I2V D UF4007 3 RS Sch od D MBROS30 L mH AAN ODRV S W d 12 Q3 R 120K 1 0805 um e a CA 7uF 50V m D13 R 39R 0805 E re Q 2N7002 e 12 O DILLA 48 VB C DRV2 N SA 7 0905 0 474 300 6 5 0805 RR 0805 XC2 u 6 oo 2 4 S m A n 5 RI2 R14 RIG E S C 154pF 0805 10 c 3 DI 5 M AA B
18. ndard I1 1 7154 Change to U 114 80 Vrms 208 Up fu 68 881 Hz Note table THD 9 33 PF H 994 PASSED Zoom a Relative Voltage 8 current du H zoom 8 Log Current H scale I 3 574 firms 1H fip 60 001 Hz Write to Write to disk sa disk Ip 61 B fits Class A a ye pata S cursor a 2 4 6 6 16 12 14 16 18 28 22 24 26 28 3H 32 34 36 38 4H Harmonic order Appl DEFAULT 1611 H1 Appl DEFAULT 1212 H1 Figure 30 230V 4c 50Hz Output Full Load Note 13 To compare the measured harmonic current with EN61000 class D and C respectively at input voltage of 115Vac and 230Vac Class D is applied to TV and PC power while Class C is applied to lighting applications As can be observed both regulations are met with sufficient margin 2009 Fairchild Semiconductor Corporation 22 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD pera SEMICONDUCTOR www fairchildsemi com 115Vac 60Hz 230Vac 50Hz XO XO XO NO R2 RO OS 06 Load Figure 31 Measured Power Factor Table 2 Total Harmonic Distortion at Input Voltage of 115Vac 230Vac 230Vac 50Hz 2009 Fairchild Semiconductor Corporation 23 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD ere eee SEMICONDUCTOR www fair
19. ndition Change the output load to observe the phase shedding and adding ae NA MNT Os M ms gidd ni Hy NAN A 0 0 VTT rici D OO V offend 750 ko l OVS 2 42 PM TUS 2 424 PM Figure 21 Phase Shedding Figure 22 Zoom In 9 Figure 21 and Figure 22 show the phase shedding waveforms The duty cycle of the channel 1 gate drive signal is doubled when the other channel gate drive signal is disabled to minimize the line current glitch ep ME NF n op n SR E NO Bt PA 4 1787 UA LU 1 8 LL Ln Led E EM f f f f fif n L E KL Ly L J 4 LJ LU a FA 4 k ei d 4 A za E EST vn 28 vn Vi rail 1 Td LL NV L A Ba e 4 Ba en uet V Fa 4 Lei en k E ANA NN RAA AN A TOO K 38 03 20 0 Vie B OO LeCroy Figure 23 Phase Adding Figure 24 Zoom In Note 10 Figure 23 and Figure 24 show the phase adding waveforms The duty cycle of Channel 1 gate drive signal becomes half just before the other channel gate drive signal is enabled to minimize the line current glitch SS OR NOE 2M J ee 12 10 8 2009 5 24 08 PM 10 8 2009 5 16 59 PM Figure 25 Phase Shedding and Line Cur
20. products are experiencing counterfeiting of their parts Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation substandard performance failed applications and increased cost of production and manufacturing delays Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are listed by country on our web page cited above Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts have full traceability meet Fairchild s quality standards for handling and storage and provide access to Fairchild s full range of up to date technical and product information Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources Fairchild is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors EXPORT COMPLIANCE STATEMENT These commodities technology or software were exported from the United States in accordance with the Export Administration Regulations for th
21. re negligible 2009 Fairchild Semiconductor Corporation 21 AN 8026 FEB301_FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD EECH 8 SEMICONDUCTOR WWW fairchildsemi com 8 7 Harmonic Distortion and Power Factor Test Condition Measure the harmonic and power factor at 115Vac 60Hz and 230Vac 50Hz output full load ANALYZER 6630 2009 09 08 11 32 00 IIPUGIIIOE ANALYZER 6638 2089 89 88 11 31 83 Waveforn Hi m Current Harmonics Next Measure Note iic cdd Setup DEFAULT H setting 1 1 U 114 480 U fu 68 881 Hz Live Analysed periods 4 I 3 568 405 9 4 Module M1 Limit Class C Standard I1 3 549 Change to 114 88 Vrms 208 Up fu 68 881 Hz Note table THD 7 99 PF 8 997 PASSED Zoom Relative Voltage current n Log scale 1 3 574 Arms 18 Ap fu 68 881 Hz a Weite to Write to 61 disk Ip 61 disk fits Class Standard Data 8 2 4 6 B 18 12 14 16 18 28 22 24 26 28 38 32 34 36 38 40 Harmonic order Appl DEFAULT 1611 H1 Appl DEFAULT 1212 BB Figure 29 115V Ac 60Hz Output Full Load L FORG ANALYZER 6638 2089 09 88 11 31 83 L FOGR ANALYZER 6638 2009 09 98 11 33 11 Waveform H1 Next Current Harmonics Next measure measure Note Setup DEFAULT Gen setting 1 1 U 230 07 U fu 50 001 Hz Live Analysed periods 4 I 1 7228 A P 394 8 4 Module M1 Limit Class C Sta
22. rent Figure 26 Phase Adding and Line Current Note 11 Figure 25 and Figure 26 show the sum of two inductor current and line current for phase shedding and adding respectively As shown the phase management causes no visible change in the line current waveforms 2009 Fairchild Semiconductor Corporation 20 AN 8026 FEB301 FAN9611 FAN9612 Rev 0 0 4 FAIRCHILD ER SEMICONDUCTOR WWW fairchildsemi com 8 6 Efficiency Test Condition 115Vac 60Hz and 230Vac 50Hz efficiency FEB301 001 FAN9612 Efficiency vs Load 115 VAc Input 390 Vpc Output 400 W 100 gt c d d 85 0 10 20 30 40 50 60 70 80 90 100 Output Power Figure 27 115Vac 60Hz Efficiency vs Load FEB301 001 FAN9612 Efficiency vs Load 230 Input 390 Output 400 W 100 Efficiency 85 0 10 20 30 40 50 60 70 80 90 100 Output Power Figure 28 230V ac 50Hz Efficiency vs Load 12 Figure 27 and Figure 28 show the measured efficiency of the evaluation board at input voltages of 115Vac and 230V respectively Since phase shedding reduces the switching loss by effectively decreasing the switching frequency at light load a greater efficiency improvement is achieved at high line where switching losses are greater Relatively less improvement is obtained for low line since the MOSFET is turned on with zero voltage and switching losses a

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