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Replacement Laptop DC Car Power Adapters for ACER

Are you looking for it: high quality ACER DC car adapter, discount ACER DC car adapter, cheap ACER DC car adapter? Well, rest assured that the best value for your replacement adapter is not the original manufacturer.
Please select your ACER model below to find a suitable replacement Laptop DC (in-car) Adaptor
5949 AcerNote 330T AcerNote 350
AcerNote 350 Series AcerNote 367 AcerNote 3680
AcerNote 370 AcerNote 370 Series AcerNote 380
AcerNote 382 AcerNote 850C AcerNote LifeNote 373
AcerNote Light 350 AcerNote Light 360 AcerNote Light 370
AcerNote Light 371 AcerNote Light 372 AcerNote Light 373
AcerNote Light 374 AcerNote Light 380 AcerNote Light 380 Series
Alpha 550 Alpha 550LC Alpha 550LV
Alpha 550 Series Alpha 550XV Alpha 551
Alpha 551VX Aspire 1200 Aspire 1200 Series
Aspire 1200X Aspire 1200XV Aspire 1202
Aspire 1202X Aspire 1203X Aspire 1203XC
Aspire 1203XV Aspire 1300 Aspire 1350
Aspire 1360 Aspire 1410 Aspire 1410-232G25N
Aspire 1414WLCi Aspire 1420P Aspire 1430
Aspire 1450 Aspire 1500 Series Aspire 1551
Aspire 1600 Series Aspire 1610 Aspire 1620
Aspire 1640 Aspire 1640Z Aspire 1642WLMi
Aspire 1650 Aspire 1650Z Aspire 1680
Aspire 1690 Aspire 1690-II Aspire 1810T
Aspire 1810TZ Aspire 1820PT Aspire 1825PTZ
Aspire 1830 Aspire 1830T Aspire 1830TZ
Aspire 2000 Aspire 2010 Aspire 2012WLCi
Aspire 2020 Aspire 2020 series Aspire 2420
Aspire 2920 Aspire 2930 Aspire 3000
Aspire 3010 Aspire 3020 Aspire 3030
Aspire 3040 Aspire 3050 Aspire 3100
Aspire 3200 Aspire 3410 Aspire 3500
Aspire 3510 Aspire 3600 Aspire 3610
Aspire 3620 Aspire 3628AWXCi Aspire 3628AWXCI
Aspire 3630 Aspire 3640 Aspire 3650
Aspire 3660 Aspire 3670 Aspire 3680
Aspire 3690 Aspire 3810T Aspire 3810T-354G32n
Aspire 3810T-6415 Aspire 3810T-944G32n Aspire 3810 Timeline
Aspire 3810TZ-4880 Aspire 3820T Aspire 3820TG
Aspire 3830TG Aspire 3935 Aspire 3935-6504
Aspire 3935-744G25Mn Aspire 3935-864G32Mn Aspire 3935-CF61
Aspire 3935-CF61F Aspire 4220 Aspire 4220G
Aspire 4230 Aspire 4232 Aspire 4251
Aspire 4252 Aspire 4310 Aspire 4315
Aspire 4320 Aspire 4320G Aspire 4330
Aspire 4333 Aspire 4339 Aspire 4349
Aspire 4352 Aspire 4520 Aspire 4520G
Aspire 4530 Aspire 4535 Aspire 4540
Aspire 4551 Aspire 4552 Aspire 4553
Aspire 4560 Aspire 4710 Aspire 4710G
Aspire 4710Z Aspire 4710ZG Aspire 4720
Aspire 4720G Aspire 4730Z Aspire 4730ZG
Aspire 4732Z Aspire 4733Z Aspire 4736Z
Aspire 4738 Aspire 4738Z Aspire 4739
Aspire 4739Z Aspire 4741 Aspire 4741G
Aspire 4743 Aspire 4743Z Aspire 4745
Aspire 4745Z Aspire 4750 Aspire 4750G
Aspire 4752 Aspire 4752Z Aspire 4755G
Aspire 4810T Aspire 4810TZ Aspire 4820T
Aspire 4820TG Aspire 4830T Aspire 4830TG
Aspire 4920 Aspire 4920G Aspire 4930
Aspire 4930G Aspire 5000 Aspire 5010
Aspire 5020 Aspire 5030 Aspire 5040
Aspire 5050 Aspire 5100 Aspire 5110
Aspire 5230 Aspire 5235 Aspire 5236
Aspire 5250 Aspire 5251 Aspire 5252
Aspire 5253 Aspire 5310 Aspire 5315
Aspire 5320 Aspire 5330 Aspire 5332
Aspire 5333 Aspire 5334 Aspire 5335
Aspire 5336 Aspire 5349 Aspire 5350
Aspire 5500 Aspire 5500Z Aspire 5510
Aspire 5515 Aspire 5516 Aspire 5517
Aspire 5520 Aspire 5520G Aspire 5530
Aspire 5530G Aspire 5532 Aspire 5534
Aspire 5535 Aspire 5535-704G32Mn Aspire 5536
Aspire 5536G Aspire 5538 Aspire 5540
Aspire 5542 Aspire 5542G Aspire 5550
Aspire 5551 Aspire 5551G Aspire 5552
Aspire 5552G Aspire 5553 Aspire 5553G
Aspire 5560 Aspire 5560G Aspire 5570
Aspire 5570Z Aspire 5580 Aspire 5590
Aspire 5600 Aspire 5610 Aspire 5610Z
Aspire 5620 Aspire 5630 Aspire 5650
Aspire 5670 Aspire 5672 Aspire 5680
Aspire 5690 Aspire 5710 Aspire 5710G
Aspire 5710Z Aspire 5710ZG Aspire 5715Z
Aspire 5720 Aspire 5720G Aspire 5720Z
Aspire 5730Z Aspire 5730ZG Aspire 5732Z
Aspire 5733 Aspire 5733Z Aspire 5734Z
Aspire 5735 Aspire 5735Z Aspire 5736Z
Aspire 5738 Aspire 5738DG Aspire 5738G
Aspire 5738PG Aspire 5738Z Aspire 5738ZG
Aspire 5739G Aspire 5740 Aspire 5740DG
Aspire 5740G Aspire 5741 Aspire 5741G
Aspire 5741Z Aspire 5742 Aspire 5742G
Aspire 5742Z Aspire 5745 Aspire 5745G
Aspire 5745PG Aspire 5749 Aspire 5749Z
Aspire 5750 Aspire 5750G Aspire 5750G-2312G50
Aspire 5750Z Aspire 5755 Aspire 5755G
Aspire 5810T Aspire 5810TZ Aspire 5820T
Aspire 5820TG Aspire 5830TG Aspire 5910G
Aspire 5920 Aspire 5920G Aspire 5930
Aspire 5930G Aspire 5935 Aspire 5943G
Aspire 5949 Aspire 5951G Aspire 6530
Aspire 6530G Aspire 6920 Aspire 6920G
Aspire 6930 Aspire 6930G Aspire 6935
Aspire 6935G Aspire 7000 Aspire 7100
Aspire 7110 Aspire 7220 Aspire 7230
Aspire 7250 Aspire 7330 Aspire 7520
Aspire 7520G Aspire 7530 Aspire 7530G
Aspire 7535 Aspire 7540 Aspire 7540G
Aspire 7551 Aspire 7551G Aspire 7560
Aspire 7560G Aspire 7715Z Aspire 7720
Aspire 7720G Aspire 7720Z Aspire 7730
Aspire 7730G Aspire 7730Z Aspire 7730ZG
Aspire 7735 Aspire 7735Z Aspire 7736
Aspire 7736Z Aspire 7738G Aspire 7739
Aspire 7739G Aspire 7739Z Aspire 7740
Aspire 7740G Aspire 7741 Aspire 7741G
Aspire 7741Z Aspire 7741ZG Aspire 7745
Aspire 7745-5602 Aspire 7745G Aspire 7745Z
Aspire 7750 Aspire 7750G Aspire 7750G-7674G75Mnkk
Aspire 7750Z Aspire 8530 Aspire 8540
Aspire 8540G Aspire 8730 Aspire 8730G
Aspire 8735 Aspire 8735G Aspire 8735ZG
Aspire 8920G Aspire 8920g-6A4G32Bn Aspire 8930G
Aspire 8935G Aspire 8951G Aspire 910
Aspire 9100 Aspire 9110 Aspire 9120
Aspire 9300 Aspire 9302 Aspire 9400
Aspire 9410 Aspire 9410Z Aspire 9412WSMi
Aspire 9420 Aspire 9500 Aspire 9510
Aspire 9520 Aspire 9920G Aspire AS5552
Aspire AS5552G Aspire E1-421 Aspire E1-431
Aspire E1-471 Aspire E1-521 Aspire E1-531
Aspire E1-571 Aspire M3 Aspire M5-481G
Aspire M5-481T Aspire M5-481TG Aspire M5-581T
Aspire M5-581TG Aspire One Aspire One 521
Aspire One 522 Aspire One 531 Aspire One 531h
Aspire One 532 Aspire One 532h Aspire One 532h-2067
Aspire One 532h-2206 Aspire One 532h-2223 Aspire One 532h-2242
Aspire One 532h-2268 Aspire One 532h-2288 Aspire One 532h-2298
Aspire One 532h-2309 Aspire One 532h-2326 Aspire One 532h-2333
Aspire One 532h-2382 Aspire One 532h-2406 Aspire One 532h-2527
Aspire One 532h-2575 Aspire One 532h-2588 Aspire One 532h-2594
Aspire One 532h-2622 Aspire One 532h-2630 Aspire One 532h-2676
Aspire One 532h-2727 Aspire One 532h-2730 Aspire One 532h-2742
Aspire One 532h-2789 Aspire One 532h-2806 Aspire One 532h-2807
Aspire One 532h-2825 Aspire One 532h-2938 Aspire One 532h-2942
Aspire One 532h-2962 Aspire One 532h-2964 Aspire One 532h-2997
Aspire One 532h-2Bb Aspire One 532h-2Bs Aspire One 532h-2Db
Aspire One 532h-2Dr Aspire One 532h-2Ds Aspire One 532h-B123
Aspire One 532h-B123F Aspire One 532h-CBK123G Aspire One 532h-CBW123G
Aspire One 532h-CPK11 Aspire One 532h-CPR11 Aspire One 532h-CPW11
Aspire One 532h-R123 Aspire One 532h-W123 Aspire One 532h-W123F
Aspire One 533 Aspire One 533- 23571 Aspire One 721
Aspire One 721-3574 Aspire One 722 Aspire One 725
Aspire One 751h Aspire One 752 Aspire One 753
Aspire One 756 Aspire One A110 Aspire One A110-1041
Aspire One A110-1137 Aspire One A110-1283 Aspire One A110-1295
Aspire One A110-1588 Aspire One A110-1626 Aspire One A110-1662
Aspire One A110-1691 Aspire One A110-1698 Aspire One A110-1722
Aspire One A110-1812 Aspire One A110-1831 Aspire One A110-1834
Aspire One A110-1948 Aspire One A110-1982 Aspire One A110-1995
Aspire One A110-Ab Aspire One A110-Ac Aspire One A110-AGb
Aspire One A110-AGc Aspire One A110-Bb Aspire One A110-Bc
Aspire One A110-BGb Aspire one A110L Aspire one A110L blau
Aspire one A110X Aspire one A110X Black Edition Aspire One A150
Aspire One A150-1001 Aspire One A150-1006 Aspire One A150-1029
Aspire One A150-1035 Aspire One A150-1049 Aspire One A150-1068
Aspire One A150-1083 Aspire One A150-1126 Aspire One A150-1140
Aspire One A150-1141 Aspire One A150-1172 Aspire One A150-1178
Aspire One A150-1249 Aspire One A150-1316 Aspire One A150-1329
Aspire One A150-1348 Aspire One A150-1359 Aspire One A150-1382
Aspire One A150-1400 Aspire One A150-1405 Aspire One A150-1435
Aspire One A150-1444 Aspire One A150-1447 Aspire One A150-1483
Aspire One A150-1485 Aspire One A150-1493 Aspire One A150-1504
Aspire One A150-1505 Aspire One A150-1532 Aspire One A150-1553
Aspire One A150-1555 Aspire One A150-1570 Aspire One A150-1622
Aspire One A150-1635 Aspire One A150-1649 Aspire One A150-1672
Aspire One A150-1679 Aspire One A150-1690 Aspire One A150-1706
Aspire One A150-1742 Aspire One A150-1777 Aspire One A150-1784
Aspire One A150-1786 Aspire One A150-1798 Aspire One A150-1840
Aspire One A150-1864 Aspire One A150-1887 Aspire One A150-1890
Aspire One A150-1905 Aspire One A150-1949 Aspire One A150-1983
Aspire One A150-1987 Aspire One A150-Ab Aspire One A150-Ac
Aspire One A150-Ap Aspire One A150-Aw Aspire One A150-Bb
Aspire One A150-Bb1 Aspire One A150-Bc Aspire One A150-BGb
Aspire One A150-BGc Aspire One A150-BGp Aspire One A150-BGw
Aspire One A150-Bk Aspire One A150-Bk1 Aspire One A150-Bp
Aspire One A150-Bw Aspire One A150-Bw1 Aspire One A150L
Aspire one A150L blau Aspire one A150L weiss Aspire One A150X
Aspire one A150X blau Aspire one A150X weiss Aspire One D150
Aspire One D150-1044 Aspire One D150-1125 Aspire One D150-1165
Aspire One D150-1186 Aspire One D150-1197 Aspire One D150-1240
Aspire One D150-1322 Aspire One D150-1462 Aspire One D150-1577
Aspire One D150-1587 Aspire One D150-1606 Aspire One D150-1647
Aspire One D150-1669 Aspire One D150-1739 Aspire One D150-1860
Aspire One D150-1920 Aspire One D150-1B Aspire One D150-1Bk
Aspire One D150-1Br Aspire One D150-1Bw Aspire One D1X0
Aspire One D250 Aspire One D250-1026 Aspire One D250-1042
Aspire One D250-1116 Aspire One D250-1151 Aspire One D250-1165
Aspire One D250-1185 Aspire One D250-1289 Aspire One D250-1326
Aspire One D250-1610 Aspire One D250-1924 Aspire One D250-1990
Aspire One D250-1Bb Aspire One D250-1Br Aspire One D250-1Bw
Aspire One D255 Aspire One D255E Aspire One D257
Aspire One D260 Aspire One D270 Aspire One D2X0
Aspire One HAPPY Aspire One HAPPY2 Aspire One P531h
Aspire One Pro531 Aspire One Pro 531 Aspire One ZG5
Aspire S3 Aspire S3-391 Aspire S3-951
Aspire S5 Aspire Timeline 1810T Aspire Timeline 3810
Aspire Timeline 3810T Aspire Timeline 3820T Aspire Timeline 4810T
Aspire Timeline 4820T Aspire Timeline 5810T Aspire Timeline 5820T
Aspire Timeline Ultra M3-581TG Aspire Timeline Ultra M5 Aspire TimelineX 3830TG
Aspire TimelineX 4820TG Aspire TimelineX 4830TG Aspire TimelineX 5830T
Aspire V3-471 Aspire V3-471G Aspire V3-551
Aspire V3-551G Aspire V3-571 Aspire V3-571G
Aspire V3-771 Aspire V5-171 Aspire V5-171-323a4G50ass
Aspire V5-171-53316G50ass Aspire V5-171-6422 Aspire V5-171-6675
Aspire V5-171-73518G50ass Aspire V5-171-9661 Aspire V5-431
Aspire V5-431-4689 Aspire V5-431-987B4G50Mabb Aspire V5-471
Aspire V5-471G Aspire V5-471P-53314G50Mass Aspire V5-471P-6852
Aspire V5-531 Aspire V5-531G Aspire V5-551
Aspire V5-551-64454G50Mass Aspire V5-551-7850 Aspire V5-551-8401
Aspire V5-551-84554G50Mass Aspire V5-551G Aspire V5-571
Aspire V5-571-32364G50Makk Aspire V5-571-323a6G75Mass Aspire V5-571-6119
Aspire V5-571-6471 Aspire V5-571G Chromebook AC700
Extensa 355 Extensa 360 Extensa 360 Series
Extensa 390 Extensa 390 Series Extensa 391
Extensa 391C Extensa 391T Extensa 392
Extensa 392C Extensa 392T Extensa 393
Extensa 393C Extensa 393T Extensa 394
Extensa 394T Extensa 395 Extensa 395T
Extensa 4120 Extensa 4220 Extensa 4230
Extensa 4420 Extensa 4620 Extensa 4620Z
Extensa 4630 Extensa 4630Z Extensa 500
Extensa 501 Extensa 502 Extensa 503
Extensa 505 Extensa 512 Extensa 513
Extensa 514 Extensa 515 Extensa 516
Extensa 517 Extensa 5220 Extensa 5230
Extensa 5230E Extensa 5235 Extensa 5420
Extensa 5420G Extensa 5430 Extensa 550
Extensa 555 Extensa 560 Extensa 5620
Extensa 5620G Extensa 5620Z Extensa 5630
Extensa 5630G Extensa 5630Z Extensa 5635
Extensa 5635Z Extensa 565 Extensa 570
Extensa 600 Extensa 600 Series Extensa 610
Extensa 616 Extensa 620 Extensa 690
Extensa 700 Extensa 710 Extensa 711
Extensa 712 Extensa 7220 Extensa 7620
Extensa 7620G Extensa 7620Z Extensa 7630
Extensa 7630G Extensa 900 Ferrari 1000
Ferrari 1100 Ferrari 3000 Ferrari 3200
Ferrari 3400 Ferrari 4000 Ferrari 5000
Ferrari FR1000 Ferrari FR1100 Ferrari FR5000
Ferrari One 200 ICONIA TAB W500 ICONIA TAB W500P
TravelMate 110 series TravelMate 200 TravelMate 2000 Series
TravelMate 200 Series TravelMate 210 TravelMate 210T
TravelMate 210TER TravelMate 212T TravelMate 212TE
TravelMate 212TXV TravelMate 213T TravelMate 213TXV
TravelMate 220 TravelMate 220 series TravelMate 220 Series
TravelMate 223X TravelMate 223XC TravelMate 225X
TravelMate 225XC TravelMate 225XV-Pro TravelMate 230
Travelmate 2300 TravelMate 2300 TravelMate 2301
TravelMate2302 TravelMate 2302 TravelMate 2303
Travelmate 2310 TravelMate 233XC Travelmate 2350
TravelMate 2350 TravelMate 2352 TravelMate 2353
TravelMate 240 Travelmate 2400 TravelMate 240 Series
Travelmate 2410 Travelmate 2420 Travelmate 2430
Travelmate 2440 Travelmate 2450 Travelmate 2460
Travelmate 2470 Travelmate 2480 Travelmate 2490
TravelMate 2500 Series TravelMate 250PE Series TravelMate 250 Series
TravelMate 260 TravelMate 260 series TravelMate 260 Series
TravelMate 270 TravelMate 270 Series TravelMate 270xv
TravelMate 280 TravelMate 290 TravelMate 290ATI
TravelMate 290E TravelMate 290 Series Travelmate 291
TravelMate 291 Series TravelMate 292LMi Travelmate 29x series
Travelmate 3000 TravelMate 3000 Series Travelmate 3010
Travelmate 3020 Travelmate 3030 Travelmate 3040
TravelMate 310 TravelMate 320 TravelMate 3200
TravelMate 320 Series Travelmate 3210 Travelmate 3220
Travelmate 3230 Travelmate 3240 Travelmate 3250
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TravelMate 330 Travelmate 3300 TravelMate 330 Series
TravelMate 330T TravelMate 340 TravelMate 340 Series
TravelMate 340T TravelMate 341TV TravelMate 342T
TravelMate 343TV TravelMate 350 TravelMate 3500
TravelMate 350 Series TravelMate 351TEV TravelMate 360
TravelMate 360 Series TravelMate 365 TravelMate 370
TravelMate 370 Series TravelMate 380 TravelMate 380 Series
Travelmate 3900 Travelmate 4000 TravelMate 4000
TravelMate 4000M TravelMate 4001 TravelMate 4001LMi
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TravelMate 4100-II TravelMate 4150 TravelMate 420
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TravelMate 430 Series TravelMate 4310 Travelmate 4320
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TravelMate 4520 Travelmate 4600 TravelMate 4600-II
Travelmate 4650 Travelmate 4670 Travelmate 4720
TravelMate 4730 TravelMate 4730G TravelMate 4740
TravelMate 4740Z TravelMate 4750 TravelMate 505
TravelMate 505 Series TravelMate 506 TravelMate 506DX
TravelMate 506 Series TravelMate 507 TravelMate 507 Series
TravelMate 508 TravelMate 508 Series TravelMate 510
Travelmate 5100 TravelMate 510 Series Travelmate 5110
TravelMate 512DX TravelMate 512T TravelMate 514TVX
TravelMate 520 TravelMate 520iT TravelMate 521
TravelMate 5210 TravelMate 521T TravelMate 521TE
TravelMate 521TEV TravelMate 521TXV TravelMate 522
TravelMate 5220 TravelMate 5220G TravelMate 5230
TravelMate 524 TravelMate 524TE TravelMate 524TXV
TravelMate 525 TravelMate 525TX TravelMate 525TXV
TravelMate 527 TravelMate 527TXV TravelMate 529
TravelMate 529ATXV TravelMate 529TXV TravelMate 530
TravelMate 530 Series TravelMate 5310 TravelMate 5320
TravelMate 5330 TravelMate 5340 TravelMate 5400M
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TravelMate 5510 Travelmate 5520 TravelMate 5520G
TravelMate 5530 TravelMate 5530G TravelMate 5542
Travelmate 5600 TravelMate 5610 TravelMate 5620
TravelMate 5672WLMi Travelmate 5710 TravelMate 5710G
Travelmate 5720 TravelMate 5720G TravelMate 5730
TravelMate 5730-663G32Mn TravelMate 5730G TravelMate 5740
TravelMate 5740G TravelMate 5742 TravelMate 5742Z
TravelMate 5744 TravelMate 5760 TravelMate 600
TravelMate 6000 TravelMate 600 Series TravelMate 610
TravelMate 610 Series TravelMate 620 TravelMate 620 Series
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TravelMate 6293 TravelMate 630 TravelMate 630 Series
Travelmate 6410 Travelmate 6460 TravelMate 6492
TravelMate 6493 TravelMate 6495TG TravelMate 650
Travelmate 6500 TravelMate 650 series TravelMate 6592
TravelMate 6592G TravelMate 6593 TravelMate 6593G
TravelMate 6594 TravelMate 6594G TravelMate 6595T
TravelMate 6595TG TravelMate 660 TravelMate 660 Series
TravelMate 662LVi TravelMate 710 TravelMate 710 Series
TravelMate 720 TravelMate 720 Series TravelMate 7220
TravelMate 7220G TravelMate 7230 TravelMate 730
TravelMate 730 Series TravelMate 7320 TravelMate 7340
TravelMate 740 Series TravelMate 740 TravelMate 7220 TravelMate 7510
TravelMate 7520 TravelMate 7520G TravelMate 7530
TravelMate 7530G TravelMate 7720 TravelMate 7720G
TravelMate 7730 TravelMate 7730G TravelMate 7740
TravelMate 7750 TravelMate 7750G TravelMate 800
TravelMate 8000 TravelMate 800 Series Travelmate 8100
TravelMate 8100A TravelMate 8132 TravelMate 8172
TravelMate 8172T TravelMate 8172Z Travelmate 8200
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Travelmate 8481T Travelmate 8481TG TravelMate 8571
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TravelMate 8573T TravelMate 8573TG TravelMate B113
TravelMate B113-E TravelMate B113-E-4470 TravelMate B113-E-967B4G32ikk
TravelMate B113-M TravelMate B113-M-323a4G32ikk TravelMate B113-M-33214G50ikk
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TravelMate C110 TravelMate C111Ti Travelmate C200
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TravelMate Timeline 8571
The adapter supplied by our Company are [replacement for] sold for use with certain products of computer manufacturers, and any reference to products or trademarks of such companies is purely for the purpose of identifying the computers with which our products [are replacement for] may be used. Our Company and this Website are neither affiliated with, authorized by, licensed by, distributors for, nor related in any way to these computer manufacturers, nor are the products offered for sale through our Website manufactured by or sold with the authorization of the manufacturers of the computers with which our products [are replacement for] may be used.

Power adapters come in two basic varieties AC/AC and AC/DC:

AC/DC— In its most basic form, a diode is added to the AC/AC adapter circuitry to create an AC/DC power adapter. The lowest cost DC power adapters use half wave rectification, however generally for few cents more you can a full wave rectification.

Common today is the center-tapped design where each half of the secondary transformer winding is idle half of the time. The primary drawback to this design is you have to use a bigger transformer to get the same power output.

The single diode, half wave rectification DC adapter is ideal for use in toy motors, battery adapters and other applications where the 100% ripple and 50% duty cycle won’t affect performance. Simply adding a capacitor can smooth out the ripple, but since it typically needs a larger capacitor at a higher cost than full wave bridge rectification, the design decision is usually in favor of the full wave rectifier.

Full wave rectifiers also have 100% ripple though the DC component of the power frequency spectrum that is much larger than that with half-wave adapters. Adding a capacitor can smooth out the ripple to some extent; however if ripple is important to you, you need to specify it. The reason? As a capacitor gets bigger, it also gets more expensive, and extra expense is what most manufacturers avoid in this highly price sensitive market.

So far none of the AC/DC power adapters mentioned have added line regulation. It is possible to add a three terminal voltage regulator to the adapter to perform volt line and load regulation, but the limited heat sinking capability limits these adapters to low power applications. If you need well-regulated power, you may want to consider using an unregulated power adapter and handle the filtering and regulation in your own product or use a switching power supply that supports a wider range of input voltages. System Connection offers regulation as an option in all our OEM power supplies, linear or switching

The range of output connectors for wall-plug power supplies is unlimited, but the most popular are listed on our Design Your Own Power Adapter form. The most commonly used is the 5.5 x 2.5 mm barrel connector, with center positive. The cost affect is minimal between the various phonon style plugs so just select the version that best matches the design requirements of the project, and decide if cable should exit the mold at 90 degrees or 180 degrees.

Wall plug-in power adapters are certified by safety agencies. The adaptors are required to have a thermal fuse to protect against fire if there is a short circuit. Typically, they are soldered-in glass tube type fuses, which are not user replaceable. Glass tube fuses protect the primary side of the transformer and are rated at 240 volts. Don’t get confused by this rating, even a 110 volt input wall power adapters is designed with a fuse rated at 240 volts. The current rating is typically two to three times the rated input current.

Power adapters with UL, TUV, CUL, etc safety approvals will have the input windings of the transformer isolated from the output windings. It is important to note that there is a capacitance between the windings, which could result in a small AC leakage current to ground.

Adapters with safety agency certifications should be properly isolated, eliminating the need for a polarized connector, or a three-pin plug. While it may be useful in certain applications to have a ground connection to reduce hum, such power adapters are rare for commercial applications.

This safety certification is a design advantage because when wall mount power adapters have all the necessary safety agency certifications, you avoid the cumbersome, time consuming and costly safety certification process you would need to endure if you had AC going into your product. For this reason, AC adapters have become so ubiquitous on many of the products we see today.


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