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power integrations atlanta sales office 4335 south lee street - g, buford, ga 305188 usa. tel: +1 678 714 6011 fax: +1 678 714 6012 www.powerint.com design example report title 15w flyback power supply using top244p specification input: 90 ? 265 vac 50/60hz output: +24 vdc @ 625ma application refrigerator author power integrations applications department document number DER-106 date may 19, 2006 revision 1.1 summary and features ? low part count, low-cost isolated flyback power supply ? e-shield? transformer construction for reduced common-mode emi (small 220pf y1 capacitor and small 10mh common-mode choke) ? 132khz switching frequency with ji tter to reduce conducted emi ? auto-restart function for automatic and se lf-resetting open-loop, overload and short- circuit protection ? built-in hysteretic t hermal shutdown at 135c ? enhanced 8-pin dip package with increased creepage from drain to low-voltage control pins ? ecosmart? for extremely low standby pow er consumption <800 mw at 230 vac the products and applications illustrated herein (including circuits external to the products and transformer construction) may be covered by one or more u.s. and foreign patents or potentially by pending u.s. and foreign patent applications assigned to power integrations. a comp lete list of power integrations? patents may be found at www.powerint.com .
DER-106 15 w universal input power supply may 19, 2006 table of contents 1 introduc tion ................................................................................................................. 3 2 power supply s pecificat ion ........................................................................................4 3 schemat ic ...................................................................................................................5 4 circuit desc riptio n .......................................................................................................6 4.1 input emi filterin g ................................................................................................ 6 4.2 topswitch primary .............................................................................................6 4.3 output rect ification .............................................................................................6 4.4 output feedback ................................................................................................. 7 5 pcb lay out .................................................................................................................8 6 bill of ma terials ...........................................................................................................9 7 transforme r spec ificatio n ......................................................................................... 10 8 transforme r sp readsheets ....................................................................................... 14 9 performanc e data ..................................................................................................... 17 9.1 effici ency ........................................................................................................... 17 9.2 no-load input power .......................................................................................... 17 9.3 regula tion ......................................................................................................... 18 9.3.1 load ........................................................................................................... 18 9.3.2 li ne ............................................................................................................. 18 10 wavefo rms ............................................................................................................ 19 10.1 drain voltage and cur r ent, normal oper ation ................................................... 19 10.2 output voltage st art-u p pr ofile .......................................................................... 19 10.3 drain voltage and cur r ent start-u p profile ........................................................ 20 10.4 load transient response ( 75% to 100% load step) ........................................ 21 10.5 output ripple measurement s ............................................................................ 22 10.5.1 ripple measurem ent t e chni que ................................................................. 22 10.5.2 measurement result s ................................................................................. 23 11 control loop m easurement s ................................................................................. 24 11.1 90 vac max i mum load ..................................................................................... 24 11.2 265 vac m a xi mum load ................................................................................... 25 12 conducted emi ..................................................................................................... 26 13 revision hi story .................................................................................................... 27 important notes: although this board is designed to satisfy safe ty isolation requirements, the engine ering prototype has not been agency approved. ther efore, all testing should be per formed using an is olated sour ce to provi de power to the prototype board. desig n re ports contain a p o wer supply d e sign s pecific ation, sche m atic, bill o f materials, and transformer documentation. performance dat a and typical operat ion ch aracteristics are included. typically only a single prototype has been built. page 2 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 1 introduct i on this document is an engineerin g report describing the design of an ac-dc power supply with univer sal input pr oviding a regulated +24 vdc at 625 ma . t he des ign, rated for 15 w is implemented using a to p244p device from the topswitch -gx ic family and an eel19 cor e in a f l y back topology. this power sup p ly is inte nded to b e used in a refrigerator appliance where the maximu m ambient temperature can reach 70c. the document contains the power supply s pec ific ation, schematic, bill-of-materials, transformer documentation, printed ci rcuit layout, and performance data. figure 1 ? populate d circuit board pho t ograp h page 3 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 2 power supply s p ecificatio n des c ription sy mbol min ty p max units c o mment input voltage v in 9 0 2 6 5 v a c 2 wire ? no p.e. freq uen cy f line 4 7 5 0 / 6 0 6 4 h z no-l oad inp u t power (230 vac) 0.8 w outpu t output voltag e 1 v out1 2 4 v 5% output rip p le voltage 1 v ripple 1 1 0 0 m v 20 mhz band w i d t h output cu rre n t 1 i out1 0.625 a total ou tpu t po w e r contin uou s o u tput powe r p out 1 5 w peak o u tput powe r p out_p e a k 2 0 w efficiency 8 2 % measured at p ou t (15 w), 25 o c en v i ronmental c o nd uc te d emi meets cispr22 b / en55022b s a f e t y designed to mee t iec950, ul1 9 5 0 class ii s u r g e 4 k v 1.2/50 s surge, iec 1000-4 - 5, series impedance: differential mode : 2 ? common mode: 12 ? s u r g e 3 k v 100 khz ring w a v e , 500 a short circuit current, differential and common mode ambient tem peratu r e t am b 0 7 0 o c free convection, sea level page 4 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 3 schematic figure 2 ? schem atic page 5 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 4 circuit descriptio n the schematic in figure 2 shows an off-line flyback c onverter using the top244p. th e circuit is designed for 90 vac to 265 vac input and provides a single output; +24 v @ 625 ma. 4.1 input em i filtering conducted emi filtering is provided by c8, c11, c18 and t4. the switching frequency jitter feature of the t o pswitch- g x family allows the use of a s m all, low c o st common mode chok e for t4 and reduces the value of c8 and c11 needed to meet en55022 / cispr22 class b with good m a rgin. a s a fety ra ted y capac itor bri dges the isolation barrier from the rectified dc r a il to ou tput return. this returns common mode emi currents generated by the primary and secondary switch ing-waveforms, reducing conducted emi. emi results are pr esented in a later section of this document. returning the y capacitor to the dc rail ensures high currents present during line tr ansients ar e routed away from u1. 4.2 topswitch primary to keep the peak drain volt age acceptably below the bv dss (700 v) of u5, diode d10, r7, vr2, c20, and r6 form a pri m ary clamp. this network clamps the voltage spike se en on the drain due to pr imary and secondary reflected leakage inductanc e. capac itor c20 together with r6 form the main clam p with vr2 providing a hard limit for the maximum voltage seen across the pr imary. resistor r7 ensures t hat vr2 only conducts at the end of the leakage inductance spike event, limiting dis s ipation. diode d10 is deliberately selected as a s l ow recovery type, but must be a glass-passivated type to guarantee the reverse recovery time as def ined by the manufacturer. standard 1n4007 diodes should not be used as their potential for very long reverse recovery times can cause exc e ssive drain ringing. the slow recove ry time, comp ared to fast or ultra-fast diodes, allows recovery of some of the clamp energy, improving efficiency. the discret e full bridge rectifier bridge com p rised of d11-d14 and c18 pr ovide a high voltage dc bus for the primary circuitry. the dc rail is applied to the primary winding of t5. the ot her side of the trans former primary is driven by the integrated mosfet in u5. r5 sets the u5 current limit to approximately 70% of its nominal value. t h is limits the output power delivered during fault conditions. c3 has 3 functions. it provides the energy required by u5 during startup, sets the auto-restart frequency during fault conditions, and also acts to roll off the gain of u5 as a func tion of frequency. r2 adds a zer o to stabiliz e the power supply cont rol loop. diode d9 and c17 prov ide rectif ied and filter ed bias p o wer for u5 and u7. 4.3 output rectification the output of t5 is r e ctif ied and filtered by d8 and c7. inductor l2 and c21 prov ide additional high frequency filtering. resistor r1 and c1 provi de snubbing for d8. choosing the proper snubber values is im portant for low zero-load power consumption and for hig h frequency emi suppression. the snubber component s were chosen so that the turn-on page 6 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 voltage spike at the d 8 anode is slightly under-damped. increasing c1 and reducing r1 will improv e damping and high frequency emi, at the cost of higher zer o -load power consumption. 4.4 output feedback resistors r15 and r16 div i de down the suppl y output voltage and apply it to the reference pin of error amplifier u6. shunt regulator u6 drives optocoupler u7 through resistor r17 to provide feedback information to the u1 control pin. the optocoupler output also provides power to u5 during nor mal operating conditions. components r2, r17, r14, c3 and c16 all play a role in compensati ng the power supply control loop. capacit or c3 rolls off the gain of u1 at relatively low frequenc y. resistor r2 provides a zero to cancel the phase s h ift of c3. resistor r17 sets the gain of t h e direct signal path from the supply output through u7 and u6. components c16 and r14 roll off the gain of the error amplifier (u6). page 7 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 5 pcb la yout figure 3 ? printed circuit l a yout page 8 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 6 bill of materials item qty ref des value m f g part nu mber des c ription 1 1 c1 470pf/2 00v 470pf, 20 0 v, cerami c, npo 2 2 c 3 c 1 7 4 7 u f lxz25vb47 r m e 1 1 l l 47uf, 25 v, electrolytic, lo w esr, 500m ohm, (5 x 11.5) 3 1 c 7 3 3 0 u f kze35vb331 mj16 l l 330uf, 35 v, electrolytic, v e ry low esr, 38mohm, (10 x 16) 4 1 c8 47nf ecq-u2a4 73 ml 47nf, 275 va c, film, x2 5 1 c11 220pf 220pf, cera mic, y1 6 1 c16 100nf ecu-s1h104kbb 100nf, 50 v, cerami c, x7r 7 2 c18 c19 22uf eeu-eb2g2 20 22uf, 400 v, el ectrolytic, high rip p le, (1 2.5 x 25) 8 1 c20 10nf eck-d3a103kbp 10nf, 1 kv, disc cerami c 9 1 c 2 1 1 0 0 u f lxz35vb10 1 m 515l l 100uf, 35 v, electrolytic, l o w esr, 180 mohm, (6.3 x 15) 10 1 d8 mur420 mur420 200 v, 4 a, ultrafast recov e ry, 25 ns 11 1 d9 1n4 148 1n4 148 75 v, 300ma, fast switchi ng, do -35 1 2 5 d10 d11 d12 d13 d14 1n4 007 gp 1n4 007 gp 1000 v, 1 a, re ctifier, gla ss pa ssivated, 2 us, do -4 1 13 1 f2 2 a 3-72 1-200 -04 1 2 a, 250v, slow, tr5 16 1 l2 3.3uh 822ly -3 r3m 3.3uh, 2.66 a 17 1 r1 47r cfr-2 5 jb -47 r 47r, 5%, 1/4 w, ca rbon fil m 18 1 r2 6.8 cfr-2 5 jb -6 r8 6.8 r, 5%, 1/4 w, ca rbon film 19 1 r5 10.5 k mfr-25fbf -10k5 10.5 k, 1%, 1/4 w, metal film 20 1 r6 68 cfr-2 5 jb -68 r 68 r, 5%, 1/4 w, carbon f ilm 21 1 r7 1 k cfr-2 5 jb -1 k0 1 k, 5%, 1/4 w, ca rbon fil m 22 1 r14 10 k cfr-2 5 jb -10 k 10 k, 5%, 1/4 w, ca rbon fil m 23 1 r15 40.2 k mfr-25fbf -40k2 40.2 k, 1%, 1/4 w, metal film 24 1 r16 4.75 k mfr-25fbf -4k75 4.75 k, 1%, 1/4 w, metal film 25 1 r17 470 cfr-2 5 jb -47 0 r 470 r, 5%, 1/4 w, ca rbon film 26 1 rv2 275va c v275la4 275 v, 23 j, 7 mm, radial 27 1 t4 10mh sc-0 1-e1 00 g 10mh, 1a, common mo de cho k e 28 1 t5 eel19 yw-3 79-02b bobbin, eel1 9 , vertical, in built margi n s, 10 pins 2 9 1 u 5 t o p 2 4 4 p t o p 2 4 4 p topsw itch-g x, top244p, dip-8b 30 1 u6 tl431 tl431 clp 2.495 v shun t regulato r ic, 2%, 0 to 70c, to-92 3 1 2 u 7 pc817 d isp817d, p c 8 1 7 x 4 opto co uple r , 35 v, ctr 3 00-6 00%, 4-dip 32 1 vr2 p6ke130a p6ke170a 170 v, 5 w, 5%, tvs, do2 04ac (do - 15 ) page 9 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 page 10 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m 7 t r ansformer s p ecification transformer construction electrical diagram winding order
DER-106 15 w universal input power supply may 19, 2006 page 11 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m core information core type eel19 core material nc -2 h or equiv a lent gap length, mm 0.109 gapp ed effective inductan c e, nh/t^2 203 primary indu ctan ce, uh 884 bobbin information bobbin reference generic, 5 pr i. + 5 sec. bobbin o r ient ation vertical numb er of primary pins 5 numb er of seco nda ry pins 5 margi n on lef t, mm 3.0 margi n on ri ght, mm 3.0 primary wi nding parameter section 1 numb er of tu rns 66 wire si ze, awg 28 filar 1 layers 2 start pin(s) 3 termin ation pin(s) 1 bias windi ng parameter value numb er of tu rns 8.0 wire si ze, awg 25 filar 1 layers 0.30 start pin(s) 5 termin ation pin(s) 4 shield information parameter primary canc ellation numb er of tu rns 14 25 wire si ze, awg 26 31 filar 2 2 layers 1 1 start pin(s) nc 1 termin ation pin(s) 1 nc secondary winding parameter outpu t 1 (m ain) spec voltage, v 24.00 spec current , a 0.65 actual voltag e, v 24.00 numb er of tu rns 15 wire si ze, awg 26 t.i.w. filar 1
DER-106 15 w universal input power supply may 19, 2006 page 12 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m filar 1 layers 0.50 start pin(s) 9,10 termin ation pin(s) 6,7 winding instruction use 3.0 mm margi n on the left side. use 3.0 mm margin on the rig h t side. canc ellation shield winding start on pin(s) 1 usin g item [6] at the start leads an d wi nd 25 turn s (x 2 filar) of item [8]. in exactly 1 layer. leave this en d of ca ncell a tion shield win d ing n o t conn ecte d. bend the en d 90 deg a nd cut the wire in the mi ddle of the bo bbin. add 1 layer o f tape, item [4 ], to secure the windi ng in p l ace. primar y winding start on pin(s) 3 usin g item [6] at the start leads an d wi nd 66 turn s of item [8] in 2.00 layer(s) from left to right. add 1 layer of tape, item [5], in betwe en e a ch p r ima r y windi ng layer. at the end of 1st layer, contin u e to wind the next layer fro m right to left. on the final layer, sp rea d the win d ing ev enly across enti r e bobbi n. finish windi ng on pin(s) 1 u s in g item [6] at the finish lea d s. add 1 layer o f tape, item [4 ], for insulatio n . bias windin g start on pin(s) 5 usin g item [6] at the start leads an d wi nd 8.0 turn s (x 1 filar) of item [9]. spread the windi ng evenl y acro ss entire bobbi n. finish on pi n( s) 4 using item [6 ] at the finish lead s. add 1 layer o f tape, item [4 ], for insulatio n . primar y balanced shield winding start on any (temp) pin o n the se co nda ry side an d wi n d 14 turn s (x 2 filar) of item [10]. spread the windi ng evenl y acro ss entire bobbi n. finish this windi n g on pin(s) 1 usin g item [6] at the finish lead s. cut out wire conne cted to temp pin on seco nda ry sid e . leave this end of prim ary shield wi ndi ng not con n e c ted. bend the en d 9 0 deg an d cut the wire in th e middle of the bobbi n. add 3 layers of tape, item [4], for insulati on. seconda r y winding start on pin(s) 9,10 u s ing item [6] at the start lead s an d wind 1 5 turns (x 1 filar) o f item [10]. sprea d the windi ng e v enly acro ss entire bo bbin. finish on pi n ( s) 6, 7 usin g item [6] at the start lead s. add 2 layers of tape, item [4], for insulati on. core ass e m b ly as s e mble and s e c u re c o re halves . item [1]. varnish dip varni s h u n iformly in item [7]. do not vacuum im pregnate. materials
DER-106 15 w universal input power supply may 19, 2006 item des c ription [1] core : eel19 , nc-2 h or e quiv a lent, gapped for al g of 203 n h / t ^2 [2] bobbin : gen e ric, 5 pri. + 5 sec. [3] tape : poly e s ter w e b 3.0 mm w i de [4] barrier t a pe : poly ester film 19.70 mm w i de [5] separa tion t a pe: poly ester film 13.7 mm w i de [6] teflon tubin g # 22 [7] varnish [8] magne t wire : 31 awg, solderable do uble coa t ed [9] magne t wire : 25 awg, solderable do uble coa t ed [10 ] magne t wire : 26 a w g, tr iple insulated wire electrical test specifications parameter conditio n spec electri c al strength, vac 60 hz 1 minute, from pins 1 - 2 to pins 6 - 10. 3000 primary indu ctan ce, uh measur e d be t w e e n pin 1 to pin 2, w i th all other win d ings open. 884 uh +/- 10 % primary le akage, uh measur e d be t w e e n pin 1 to pin 2, w i th all other win d ings shorted. 44 uh (ma x ) page 13 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 8 t r ansformer s p readsheet s page 14 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 page 15 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 page 16 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 9 performance dat a all measur ements performed at room temperature, 60 hz input frequency. 9.1 efficiency figure 4 ? efficien cy vs. input voltage, room t e mpe r ature, 60 hz. 9.2 no-load input power figure 5 ? z e ro lo ad inp u t power vs. input line volt age, ro om t e mpe r ature, 60 hz. page 17 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 9.3 regulation 9.3.1 load figure 6 ? lo ad re gulatio n, room te m peratu r e 9.3.2 line figure 7 ? li ne re gulatio n, room te m peratu r e, full load page 18 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 10 w aveforms 10.1 drain voltage and current, normal operation figure 8 ? 9 0 vac, full load. upp e r: i drain , 0.2 a / div lower: v drain , 100 v, 2 s / div figure 9 ? 2 65 vac, full load upp e r: i drain , 0.2 a / div lower: v drain , 200 v / div 10.2 output voltage start-up profile figure 10 ? start-up profile, 120 vac 2 v, 20 ms / div. figure 11 ? start-up profile, 240 vac 2 v, 20 ms / div. page 19 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 10.3 drain voltage and current start-up profile figure 12 ? 9 0 vac input and maximu m load. upp e r: i drain , 0.5 a / div. lower: v drain , 100 v & 1 ms / div. figure 13 ? 2 65 vac input and maximu m load. upp e r: i drain , 0.5 a / div. lower: v drain , 200 v & 1 ms / div. page 20 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 10.4 load tran sient response (75 % to 100 % load step) in the figures shown below, signal averagin g was us ed to better enable viewing the lo ad transient response. the osc illoscope was triggered using the load current step as a trigger source. since the output switching and line frequency occur essentially at random with respect to the load transient, contributi ons to the output rippl e from these sources will average out, leaving the contributi on only from the load step response. figure 14 ? tran sie n t re spo n se, 120 vac, 75-10 0- 75% load st ep. top: load cu rre nt, 0.5 a/div. bottom: output voltage 100 mv, 5msec / div. figure 15 ? tran sie n t re spo n se, 240 vac, 75-10 0- 75% load st ep upp e r: loa d curre n t, 0.5 a/ div. bottom: output voltage 100 mv, 5 ms / div. page 21 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 10.5 output ripple m easurements 10.5.1 ripple measurement technique for dc out put ripple measurements, a modifi ed osc i lloscope tes t probe must be utiliz ed in order to reduce spurious signals due to pi ckup. det a ils of t he probe modification are provided in figure 16 and figure 17. the 5125ba probe ad apter is affixed with two capac itor s tied in parallel acros s the probe tip. the capacitors include one (1) 0.1 f/50 v ceramic type and one (1) 1.0 f/50 v aluminum electrolytic. the alu m inum electrolytic type capacitor is polarized, so proper polarity across dc outputs must be maintained (see below). probe ground probe tip figure 16 ? oscillo scope probe prepa red for rip p le meas urement . (end cap a nd gro und l e ad rem o ved ) figure 17 ? oscillo scope probe with probe ma ster 5 125ba bnc adapter. (m o d ified with wi res for p r ob e grou nd for ri p p le mea s u r e m ent, and two parall e l de couplin g cap a citors add ed ) page 22 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 10.5.2 measurement results figure 18 ? +24 v rip p le, 90 vac, full load. 2 ms, 20 mv / div figure 19 ? +24 v rip p le, 265 vac, fu ll load. 2 ms, 20 mv / div page 23 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 11 control loop me asurement s 11.1 90 vac maximum load figure 20 ? gain-p ha se plot, 90 vac, maximum steady state load vertical scale : gain = 8 db /div, phase = 40 /div. cro s sove r freque ncy = 1. 42 khz pha s e margi n = 5 2 .7 page 24 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 11.2 265 vac m a ximum load figure 21 ? gain-p ha se plot, 265 vac, maximum steady state load vertical scale : gain = 8 db /div, phase = 40 /div. cro s sove r freque ncy = 6 9 5 hz, phase margi n = 65. 4 page 25 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 12 conducted emi a conducted emi scan of the prototype was ta ken to determine the effectiveness of the input filter and transformer eshield? construc tion. the following plots show the peak performance of the converter against quasi -peak (qp) and average (avg) limits of en55022 class b. both scans were taken at 120 vac / 60hz input with maximum load applied to the outputs. since t he peak scans are below the aver age limits, it is expected that the qp and average scans would have greater than 5db of margin below the limits. figure 22 ? con d u c ted emi (neut ral), maximum lo ad, 120 vac, 60 hz, an d en55 022 b li mits figure 23 ? con d u c ted emi (line), ma ximum load, 120 vac, 60 hz, an d en5 5022 b limits page 26 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 13 revision history date author revision description & chang es review ed 10-26-05 05-19-06 rsp rsp 1.0 1.1 initial re le ase corrected schematic km/jc/vc page 27 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 f o r t h e lat e st updat e s, visit our we bsit e : www. powe r int.c o m pow e r inte g r a tions re se rv e s the rig h t to m a k e c h a n g e s to its pro d u c ts a t a n y ti m e to im prov e re lia bility or m a nuf a c tura bility . po w e r inte g r a tions doe s not a ssum e a n y lia bility a r ising f r o m the use of a n y de v i c e or c i rc uit de sc ribe d he r e in. p o w e r int e g r at ions m a kes no wa rr a n t y he rein a nd s p ecif ica l ly dis c la im s all wa rr anties incl udin g , w i t hou t lim i tat i o n , t h e im p l ied wa rr ant ies of m e rch a n ta bil i t y , f i t n es s f o r a p a r t icula r p u rp os e , a nd non- infring e men t of t h ird p a r t y ri g h t s . patent inform ation t h e pr oduc ts a n d a ppl ic a tions il lu s t r a te d he r e in ( i nc l udi ng tr a n s f or me r c o n s t r u c t i o n a n d c i r c u i t s e x t e r n a l t o t h e p r o d u c t s ) m a y be c o v e r e d by one or m o r e u . s. a nd f o r e ig n p a te nts , or pote n tia lly by pe nding u.s. a n d f o r e ig n pa te nt a p plic a t i ons a s s i g n e d to pow e r i n te g r a tions . a c o m p le te lis t of p o w e r i n teg r a tions ? pa te nts m a y be f ound a t www .pow e r int.c o m . p o w e r inte g r a tions g r a n ts its c u stom e r s a lic e n se unde r c e r ta in pa te nt rig h ts a s s e t f o rth a t htt p ://w w w .pow e r int.c o m / ip.h tm . th e p i lo g o , topsw itch , ti n y s w i t ch , lin k sw itch , dpa - s w itc h , e cos mart , pi ex pert and pi facts are t r a d em arks o f p o w e r in t e grat i o n s , in c. ot h e r t r ad emarks ar e p r o p e rt y o f t h ei r resp ect i v e co m p an i e s. ?co p y ri gh t 2 0 0 5 p o w e r in t e grat i o n s , i n c. po w e r integr ations worldw ide s a le s supp ort locations w o rl d he adquart e r s 5 245 hell yer a v en u e sa n j o s e , c a 9 513 8, usa . m a i n : + 1 - 4 08 -414 -92 0 0 c u st om er s e r v i c e: ph on e: + 1 - 4 08 -414 -96 6 5 f a x: +1- 4 0 8 - 4 1 4 - 9 76 5 e- m a i l : u s as al es @p ow er i n t . c o m ge rmany r u eck er t s t r a s s e 3 d - 80 33 6, m u ni ch ge rma n y ph on e: + 4 9 - 89 -552 7 - 3 910 f a x: +4 9- 8 9 - 5 5 27- 39 2 0 e - m a i l : eu ro s a l e s@ p o w e ri n t .c o m ja p a n k e ihi n t a te m o no 1 st bl dg 2- 1 2 - 2 0 sh in -yok oh am a , k o h o k u - ku , y o ko ham a - s hi , k a nag a w a ke n, j a pa n 222 -00 3 3 ph on e: + 8 1 - 45 -471 -10 2 1 f a x: +8 1- 4 5 - 4 7 1 - 3 71 7 e- m a i l : ja pa ns al es @ p ow er i n t . c o m ta i w a n 5f , n o . 3 1 8 , n e i h u rd ., s e c. 1 ne i hu di s t . t a ipe i , t a iw an 1 1 4 , r.o . c. p h o n e : +8 86- 2- 2 6 59- 45 7 0 f a x: +8 86- 2- 2 6 59- 45 5 0 e- m a i l : ta iw an s a les @ p o w er in t.c o m china (shanghai) rm 80 7- 8 0 8 a , pa c h e e r c o mme rc i a l c e n t re , 55 5 n a n j i n g r d . w e s t sh an gh ai , p. r. c. 2 0 0 041 ph on e: + 8 6 - 21 -621 5 - 5 548 f a x: +8 6- 2 1 - 6 2 15- 24 6 8 e- m a i l : c h i n asa l es @ p o w er in t. com india 26 1/a , g r o und f l oo r 7t h ma in , 17 t h c r o ss, s a das h iv an ag ar b a n g a l ore, i n d i a 5 600 80 ph on e: + 9 1 - 80 -511 3 - 8 020 f a x: +9 1- 8 0 - 5 1 13- 80 2 3 e- m a i l : i n di asa l es @ p o w er i n t. com kore a r m 602 , 6 f l ko r e a c i t y ai r t e r m i n a l b / d, 15 9- 6 s a m s u n g - d o ng , k a ng na m - g u , seou l, 1 3 5 - 728 , k o rea p h o n e : +8 2- 2- 20 1 6 - 6 61 0 f a x: +8 2- 2- 20 1 6 - 6 63 0 e- m a i l : kor e as al es @p ow er i n t . c o m e urop e hq 1 s t f l o o r, st . jame s?s ho u s e e a s t s t r eet , f a r n ha m s u r r ey , g u 9 7t j u n ite d k i ng do m p h o n e : +4 4 ( 0 ) 1 2 52- 73 0- 14 0 f a x: +4 4 ( 0 ) 1 2 52- 72 7- 68 9 e - m a i l : eu ro s a l e s@ p o w e ri n t .c o m china (she nzhe n) r oom 22 06 -220 7, b l oc k a , el e c . s c i. t e ch. bl dg . 2 070 s h en na n z h on g r d . s h en zh en , g u an gd o n g, c h i n a , 51 803 1 p h o n e : +8 6- 7 5 5 - 8 37 9- 3 2 43 f a x: +8 6- 7 5 5 - 8 37 9- 5 8 28 e- m a i l : c h i n asa l es @ p o w er in t. com it al y v i a v i tto r io v e ne to 12 2 009 1 b r es s o m i it a l y ph on e: + 3 9 - 028 -92 8 - 60 00 f a x: +3 9- 0 2 8 - 9 28- 6 0 0 9 e - m a i l : eu ro s a l e s@ p o w e ri n t .c o m singap ore 51 n e w t o n ro ad , #1 5- 0 8 / 1 0 g o l dhil l p l az a, si n g ap ore, 30 890 0 ph on e: + 6 5 - 635 8 - 2 160 f a x: +6 5- 6 3 58- 20 1 5 e- m a i l : s i nga po r e s a l e s @ po we r i nt . c o m ap p l icat ions hotl i ne w o rl d w i de +1- 4 0 8 - 4 1 4 - 9 6 60 a pplic a t ion s fa x w o rl d w i de +1- 4 0 8 - 4 1 4 - 9 7 60 page 28 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m
DER-106 15 w universal input power supply may 19, 2006 page 29 of 29 po w e r integrati ons tel: +1 408 414 9200 fa x: +1 4 08 414 9201 www.po werint.co m

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