How to Solve the Electromagnetic Interference Problem of LED Driver Power Supply with Schottky Diodes

2024-05-26 LXMICRO Official Website
Schottky diodes,凌讯微电子 Schottky diodes,凌讯微电子 Schottky diodes,凌讯微电子 Schottky diodes,凌讯微电子

The main aspects that engineers need to consider for LED power supply electromagnetic interference include circuit measures, EMI filtering, component selection, shielding, and printed circuit board anti-interference design.


In terms of component selection, it is generally believed that Schottky diodes have a greater impact. What are the methods to eliminate interference?


1.Reduce interference from the switching power supply itself

In terms of soft switching technology, inductance and capacitance components are added to the original hard switching circuit. Switching frequency modulation technology: by modulating the switching frequency fc, the energy concentrated on fc and its harmonics 2fc, 3fc... is dispersed to the surrounding frequency bands. Schottky diodes with small reverse recovery current and short recovery time are ideal devices for high-frequency rectification in switching power supplies. Installing electromagnetic interference filters in the input and output circuits of switching power supplies


2. Cut off the propagation path of interference signals

Use power line filters to filter out power line interference, improve the electromagnetic compatibility design of PCB boards, follow the general principles of PCB design, and comply with anti-interference design requirements.


3. Enhance the anti-interference ability of the interfered body

Various isolation measures (such as photoelectric isolation or magneto electric isolation) should be taken to block the propagation of interference. For LED power systems used outdoors or for power and signal lines introduced indoors from outside, lightning protection of the system should be considered.


The main control technologies for electromagnetic interference in LED power supply include circuit measures, EMI filtering, component selection (Schottky diodes), shielding, and anti-interference design of printed circuit boards.

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型号- PBSS305ND,PMPB95ENEA,PZU9.1Y,PTVS48VS1UR,PMEG060V030EPD,PMP5501QAS,IP4220CZ6,PMEG4005CEJ,74HC259-Q100,74HC4852-Q100,BC807-16H,74HCT594-Q100,BAV170M,BAS321J,PDTA123EMB,BUK7S0R7-40H,74AHC1G126-Q100,HEF4520B-Q100,PBSS305NX,BC53-10PAS / BC53-16PAS,PBSS305NZ,PDTC123JQA,74LVC1G175-Q100,PTVS58VP1UTP,74HCT4020-Q100,74HC4520-Q100,BUK964R2-60E,74AUP1G157-Q100,PDTA143TU,PBSS305PD,PESD36VS1UJ,BUK962R8-60E,74HCT165-Q100,74AHCT541-Q100,74LVC1G10-Q100,PBSS5260PAP,BC847RA,PMEG6030EP,PMEG030V030EPD,HEF4069UB-Q100,PDTA143TM,PDTA143TT,PBSS2515MB,74LVC3G07-Q100,PESD5V0L5UY,PHPT60603PY,PMEG4005CEA,BUK9620-55A,PESD5V0L5UV,BZX84W,PBSS305PZ,TL431CDBZR,2PA1774SM,PESD24VS2UQ,BZX84J,PBSS305PX,PESD24VS2UT,PDTD114EQA,BAS101S,PDTC144EMB,BUK7D25-40E,TL431BQDBZR,BCX70H,PDTC144ET,PESD15VL2BT,HEF4021B-Q100,BAS40H,BCX70J,BCX70K,PDTC144EU,BUK6Y25-40P,BAS40L,PMEG6010CPA,PDTC144EM,PESD5V0L1UA,PESD5V0L1UB,2PA1774RM,BCX70G,PTVS11VP1UTP,PDTA143ZM,74HC2GU04-Q100,74ALVC125-Q100,TL431ACDBZR,74LVC1GX04-Q100,PMEG060V100EPD,PTVS22VU1UPA,PDTA143ZU,PDTA143ZT,BC857AQA,BUK9675-100A,HEF4051B-Q100,PHPT60603NY,74AVC1T45-Q100,PESD3V3T1BLD,PDTC144VMB,PTVS7V5P1UP,PUSB2X4D,PESD1IVN27-A,PUMB14,74AHCT573-Q100,PUMB13,PUMB16,74AHC1G09-Q100,PDTC123JMB,PUMB15,BC847CQA,PUMB10,2PA1774QM,PTVS43VP1UP,PUMB11,BUK7E3R1-40E,PUSB2X4Y,BAT46WJ,BAT46WH,74AHCT14-Q100,BAS40W,BUK753R1-40E,BAS416,PDTB113EQA,BUK98180-100A/CU,74LVC08A-Q100,RB520S30,PESD1IVN27-U,MMBZ16VAL,PQMH9,BUK7E1R9-40E,PBSS4240DPN,PRMH13,PRMH11,PDTA143XM,PRMH10,BUK7K29-100E,PDTA143XT,PQMH2,74LVC2G04-Q100,PDTA143XU,74HCT2G66-Q100,74HC2G08-Q100,74XXXXTXXXXXX,74AHC595-Q100,74LVC1G17-Q100,2PA1774RMB,BC54PA,BAT720,HEF4541B-Q100,BAT721,74LVC2G86-Q100,74HC365-Q100,PBSS4350X,PBSS4350Z,PBSS4350T,PBSS301ND,74HC4067-Q100,NZX2V1B,74LVC1G58-Q100,74AHC139-Q100,74HC4053-Q100,BC817DS,PESD24VL2BT,PBSS5330X,74HCT4052-Q100,NUP1301U,NPIC6C596-Q100,74AHC1G66-Q100,74AUP1G125-Q100,74AHCU04-Q100,74HC1G14-Q100,BZX84-Y7V5,TL431FDT,74HCT244-Q100,BC69-25PA,74AVCH1T45-Q100,PESD5V0U4BW,2N7002CK,PMEG060V050EPD,PBSS301NX,BC53PAS,PDTA113EU,PBSS301NZ,PDTA113ET,PBSS4350D,2N7002BK,BUK7Y12-100E,BC860C,PBSS5330PAS,BC860B,MMBZ12VAL,BAS70-06,BAS70-07,BAS70-04,BAS70-05,PDTA113EM,PBSS301PD,PRTR5V0U2AX,PESD2ETH-AX,NZX2V4B,PUMH9,BUK963R3-60E,NZX2V4A,PLVA600A,PBHV8140Z,PUMH7,BUK7Y4R4-40E,BZV90,PESD2ETH-AD,PTVS36VP1UP,PTVS8V0P1UP,BAT754,PUMH4,BAT74S,PUMH2,PUMH1,74VHCT126-Q100,PMV250EPEA,BCX71J,PTVS6V0S1UR,74HC4060-Q100,BCX71K,PTVS16VS1UR,PESD5V0S2BT,NCR401T,NCR401U,PTVS64VS1UR,PMEG10020AELP,BSH205G2,BCX71H,PMEG10020AELR,PBSS301PZ,74HC3G34-Q100,PBSS301PX,BUK9M7R2-40E,PMEG60T10ELR1,74HCT174-Q100,BUK7Y19-100E,BAT854AW,PTVS40VS1UTR,BUK6Y12-30P,74AHC02-Q100,74HCT2G34-Q100,BAV99S,PMEG6010CPAS,PMEG3005EB,NCR402U,74HC86-Q100,NCR402T,PTVS11VP1UP,PUMB9,PTVS43VS1UTR,PUMB4,PESD5V0L1ULD,74LVC1GU04-Q100,PUMB3,PUMB2,HEF4555B-Q100,PUMB1,BC856W / AW / BW,74AHC132-Q100,PMEG2020EH,PESD15VS2UQ,PTVS36VS1UTR,74LVTH244A-Q100,BC56-10PAS / BC56-16PAS,PMEG3005ET,74HCT03-Q100,MMBZ12VDL,PESD15VS2UT,PTVS6V5P1UTP,PMEG3005EJ,BAT854CW,PMV100ENEA,PTVS14VS1UR,PMEG3005EH,74HCT138-Q100,PBSS5240T,74AHC04-Q100,PBSS5240Y,74HCT1G04-Q100,74LVC1G53-Q100,PBSS5240X,PMEG60T10ELP1,BAV99W,74AUP1G175-Q100,PTVS8V5S1UTR,74HC4017-Q100,PBSS4130T,BC69-16PA,BUK7K45-100E,BZV49,PESD2IVN-U,PUMD9,BUK9K8R7-40E,PUMD6,PUMD4,PUMD3,PUMD2,PBSS4230PANP,74LVC1G125-Q100,PBSS4480X,PMEG2020EJ,74AHCT1G125-Q100,PMEG3005CT,HEF4060B-Q100,74AHC157-Q100,PBHV9560Z,NCR405U,BF622,BF623,BF620,BF621,PTVS16VP1UTP,74AHC245-Q100,74VHCT541-Q100,PDTC143ZU,PDTC143ZT,PTVS18VP1UP,BUK7Y3R5-40H,PDTC143ZM,BUK7Y3R5-40E,PMEG2015EJ,PMEG3005AEA,PMEG2015EH,PMEG40T20ER1,PTVS16VP1UP,74LVC273-Q100,BUK7S1R0-40H,BUK7675-55A,MMBZ20VAL,PTVS10VU1UPA,PTVS60VP1UTP,PDTA143EM,PMEG3010EH,PDTA143EU,74HC20-Q100,PDTA143ET,NX2301P,BUK9Y1R6-40H,PMEG3010EB,PXTA42,PBSS5250TH,BC857AM,PMEG2015EA,PDTB123YQA,74LVC16244A-Q100,BCW70,PMEG4010BEA,74HCT373-Q100,BCW72,74CBTLV3125-Q100,BCW71,PBHV9215Z,PDTC144WU,BUK7M15-40H,PDTC144WT,BZX84-Y2V4,PDTC144WM,BZX84-Y2V7,74AHCT3G04-Q100,74HC27-Q100,MMBZ20VCL,BAS21AVD,PBSS5130QA,PMEG045V050EPD,PMMT491A,74AHCT273-Q100,2PC4617QMB,TLVH431NCDBZR,BUK9M9R5-40H,74HCT4851-Q100,PMT280ENEA,PESD5V0F1BLD,PTVS45VP1UP,BCW89,74HC11-Q100,BAT160S,PZU5.1Y,PESD3V3U1UB,PESD3V3U1UA,74HC1G125-Q100,74LVC06A-Q100,PMEG4020EP,PBSS5220PAPS,PMEG4020ER,74HCT3G14-Q100,74LVC1G123-Q100,BUK6D43-60E,NCR320Z,BAT160C,HEF4014B-Q100,PZU36Y,PMP5501G,BAT160A,NCR320U,BC825W,BAT46GW,74HC2G17-Q100,PESD5Z6.0,PESD1LVDS,PDTC124EQA,BUK9M6R7-40H,74AHCT1G32-Q100,PBHV8540X,PBHV8540T,HEF4017B-Q100,74HCT2G02-Q100,PTVS48VS1UTR,PTVS30VS1UR,PMEG3005EGW,BZX100A,PDTC144VU,PDTC144VT,PESD3V3U1UT,NCR321Z,74HCT2G32-Q100,NCR321U,BCW69,PDTC144VM,74AHC164-Q100,PTVS45VS1UTR,BAV99QA,BUK969R3-100E,74AHC1G86-Q100,PDTA114EQA,74HC164-Q100,74HCT251-Q100,PNE20010ER,PZTA92,TLVH431NIDBZR,74AHC374-Q100,BCW30,PESD3V3V4UW,BCW32,BCW31,PDTC114TMB,BCW33,BCP53-16H,PXTA14,PESD5V0L1BA,PBHV8540Z,PMP5501Y,PMEG3020BEP,PESD5V0S5UD,BSS138PW,PTVS3V3P1UTP,PMEG3020BER,BSS138PS,74AHC1G04-Q100,PQMB11,74LVC16373A-Q100,PTVS15VU1UPA,PTVS1

选型指南  -  NEXPERIA  - February 2019 PDF 英文 下载

Selection Guide for HEV/EV

型号- SJPD-D5,SUK3015,2SK4161D,SFA0002,SJPL-H2,FKV460S,SJPL-L4,SPF0004,SJPL-L2,SPF8201,SJPD-L5,SPF6102,SJPZ-N33,SJPL-D2,SJPL-H6,DKG1020,SJPX-H3,SJPX-H6,SZ-10N27,SPF3000 SERIES,SPF3009,SPF3006,SJPZ-K28,SZ-10NN40,SPF3000,SJPE-H4,SJPB-H4,SJPB-H6,SJPW-F6,SJPB-H9,SJPB-D6,SJPB-D9,FLD470,SZ-E10ET615,FKV660S,SJPZ-N18,SZ-E10ET415,SPF6001,SPF7211,SPF5035,2SK3711,SJPB-L4,SJPL-F4,SJPB-L6,2SK3710,SJPX-F2,2SK3801,SZ-10EF,SZ-10NN27,SPF7302,SPF5047,2SK3800

选型指南  -  SANKEN  - Jun. 18, 2021 PDF 英文 下载

凌讯微电子(LXMICRO)功率半导体器件选型表

描述- 广东凌讯微是一家专注功率半导体器件研发、封装测试、销售与一体的国家高新技术企业,工厂面积1万平方,公司现有人员160余人,每年为业界提供超500KK优质的功率半导体器件产品。广东凌讯微能够为客户提供高质量,高可靠性的功率器件产品及全方位的技术支持,现有肖特基、LowVF肖特基、快恢复、高压MOS、中低压MOS、超结MOS等主力产品线;IGBT单管及碳化硅二极管也在小批量进行中,量产产品会陆续面世。产品广泛应用于各类电源适匹器、LED照明、无刷马达,锂电管理,逆变等领域。

型号- LT180N03AT,LSC04D120T,MBR3060CT,SBT20V100DC,MBR40200PT-B,MUR6060PTS,MUR2060DC,SBT10L150SCS,LSC04D120P,MBR4060CT-B,LT60N06AP,LT100N08AT,MBR3060DC,SBT20V100CT,MBR40150DC-B,CS18N20AF,MUR2040FCT,CS12N60A2,CS12N60A8,MBR4045DC-B,SBM60L60DC,SBT30L60DC,MBR20150FCT,SBM60L60CT,SBT40L45CT,MBR40200PTS-B,MUR1620CT,MBR60150PT,MBR6060PTS,MUR1620CS,MUR2060CT,MBR1045DC,SBT40L60PT,CS7N70A2,MBR3045FCT,MUR4020CT,CS7N70A5,MBR10200CT,MBR10200CS,MUR4040PTS-S,SBT30L60CT,MBR1045CS,MBR1045CT,MBR10200DC,SBT40L60PTS,LSC08D120T,LSC08D120P,LT100N08AD,LT100N08AG,LC60R130B,MUR2040CT-S,LC60R130F,LT100N08AP,MUR1560,LT40N03AG,LT40N03AD,SBT20L45DC,LT60N04AG,CS20N50A8,HBT30L200FCT,LT60N04AD,CS20N50A6,LT40N03AP,CS20N50A7,CS20N60A6,MBR4060FCT-B,SBT40L80PT,MBR1045FCT,SBT30L80CT,CS28N50A7,MUR3020FCT,CS28N50A6,CS20N60A8,CS20N60A7,CS3N50A5,CS3N50A4,SBT40U100PT,CS3N50A2,CS16N60A8,MUR3040FCT-B,HBT10L200SDC,CS16N60A6,MUR2020D,CS16N60A7,MUR2040PTS,LT60N03AP,SBT20V80CT,MBR60150PTS,SBT30L150PTS,MUR1040DC,HBT10L200SCT,LT60N03AG,LT60N03AD,LT15N10AD,MUR1040D,LT15N10AG,MUR3040FCT-S,SBT40L45DC,MBR40200DC-B,MUR1040CT,SBT20V80DC,MUR1040CS,MBR4045PT-B,MUR30120PT,MUR2040PT,CS5N65A2,HBT20L200PTS,CS5N65A4,CS5N65A5,MBR6045PT,MBR40150PT-B,CS7N60A2,MBR1645CS,SBT40L60FCT,MBR1645CT,LG100N08AT,HBT30L200PT,MUR1220FCT,CS7N60A4,MBR4045PTS-B,CS7N60A5,MBR1045D,MBR3045PTS,LSC10D200T,MUR840,LG100N08AD,MBR30150PTS,LG100N08AP,LT60N02AG,LSC10D200P,MBR40100PTS-B,LT60N02AD,CS4N70A2,MUR1060CS,MUR1060F,CS4N70A5,MUR1060D,MUR1680FCT,MUR1060CT,LSC20D120P,LG160N06AT,MUR1640DC,MBR2060FCT,MBR30200DC,LSC20D120T,LG160N06AP,MBR30200CT,LT150N03AT,CS8N65A2,MUR3020PT,LG60N10AT,LG160N06AG,LG60N10AP,LG160N06AD,MUR3060DC,CS8N65A5,CS8N65A4,MBR20100D,MBR20100CT,SBT40L80PTS,MBR20100CS,LT80N04AG,MUR3020PTS,MUR1060,MBR60200PTS,CS9N50A5,MBR3060PTS,CS9N50A2,SBT40L100DC,LT80N04AD,CS9N50A4,MBR20100DC,MUR860,SBM60L60PTS,HBT10L200SFCT,MBR30150PT,MBR30100PTS,SBT30L150PT,HBT30L200CT,SBT30L150FCT,CS2N60A5,CS2N60A4,HBT30L200DC,CS20N65A8,CS20N65A7,SBT40L45PTS,CS20N65A6,SBT40L100CT,CS2N60A2,SBT40U150CT,LT150N03AD,LT150N03AG,MBR1060FCT,CS10N65A2,SBM20L300DC,LT30N06AD,MBR40200FCT-B,LT150N03AP,LT30N06AG,MUR3060CT,LSC30D65T,MUR2020FCT,MBR10200FCT,LSC30D65P,CS10N65A5,MUR1640CT,MBR6045PTS,CS25N60A7,CS10N65A8,MUR1640CS,CS25N60A6,SBT40U150DC,MBR4060PTS-B,MBR30100CT,LG50N10AD,LG50N10AG,LSC20D90P,MBR30100CS,LG80N10AD,LG80N10AF,HBT30L200PTS,LSC20D90T,SBT40L80FCT,SBM60L60FCT,LT50N06AD,MBR30100DC,MBR3060PT,LT50N06AG,MUR4020PTS,LSC50D65T,HBT20L200PT,LT80N06AG,SBT30L60FCT,MBR30100FCT,MBR20200DC,MUR4040DC-S,SBT40U150FCT,LT30N03AG,SBT30L45PT,LT80N06AD,LSC50D65P,SBT40L45FCT,MBR20200CS,LT30N03AD,MBR20200CT,SBT40U150PTS,CS12N65A8,MUR5030PTS,LSC15D120P,MUR1620DC,LSC15D120T,MBR10150D,SBT30L100CT,LSC10D120P,LSC10D120T,SBT20V100FCT,CS25N50A8,SBT30L60PTS,CS25N50A7,CS25N50A6,MBR20200D,CS12N65A2,CS4N60A2,LG60N10AG,SBM20V60FCT,CS4N60A4,LG60N10AD,MBR2060DC,CS50N20AF,LT50N06AP,78D05,MUR4040PT-S,MBR10100DC,CS4N60A5,MBR10150FCT,SBT30L100DC,CS50N20AP,LT180N03AD,CS60N20A6,MUR1060DC,MUR1620D,LG50N10AT,MBR2060CS,LT180N03AG,CS50N20AT,LT60N06AG,MBR2060CT,MUR2040FCT-S,MBR10100CT,MBR10100CS,LT60N06AD,LT180N03AP,LG50N10AP,SBT10L100FCT,MBR3045CT,LC65R380D,LC65R380F,LG220N08AT,MUR30120PTS,MBR10100D,LG220N08AP,CS50N20A6,MUR4040CT-S,MBR3045DC,MBR60100PT,LSC20D65T,SBT20V150DC,CS10N60A2,CS7N65A2,CS25N65A7,MUR4020FCT,LSC04D65T,MBR2045FCT,CS7N65A5,MUR3040PT-S,MBR40100FCT-B,CS7N65A4,LSC20D65P,SBT30L45DC,SBT40L100PTS,SBT20V150CT,CS25N65A6,CS10N60A8,SBT40L60CT,CS10N50A2,LSC40D120P,LG200N04AD,MBR1060DC,HBT20L200CT,MUR1040FCT,MUR1660DC,SBT30L45PTS,MBR2060D,MUR840F,SBT30L45CT,CS10N50A8,MBR1060CT,MBR1060CS,SBT40L45PT,SBT10L100CT,HBT20L200DC,LSC40D120T,LG80N10AT,MBR40150FCT-B,LG80N10AP,CS16N65A8,CS16N65A6,LG80N10AG,MBR30200PTS,SBT10L100DC,MBR60100PTS,MUR1220CS,MUR1220CT,MUR1660FCT,CS10N70A2,SBM60L60PT,MUR2020DC,MBR30200PT,CS10N70A8,MUR3040PTS-S,CS13N50A8,SBM20L300CT,SBT30L80FCT,MUR3040PTS-B,MUR3020DC,LC65R280F,CS4N65A4,MUR3040DC-B,CS4N65A5,LT140N04AT,MBR4045FCT-B,CS4N65A2,MBR1645D,MUR2020CS,MBR3060FCT,MUR2020CT,LG200N04AP,MBR20200FCT,LG200N04AG,MUR1660CT,MBR40100PT-B,SBT40L100FCT,SBT40L60DC,MBR6060PT,MUR3060FCT,LT140N04AP,MUR3040DC-S,MUR860F,MUR3040PT-B,LT140N04AG,MUR6060PT,LT140N04AD,MBR20100FCT,MBR40100DC-B,LT120N03AP,CS18N50A8,CS18N50A7,CS34N20AF,CS18N50A6,CS34N20AT,LT80N03AG,LT120N03AG,CS34N20AP,MUR3020CT,LT80N03AD,LT120N03AD,CS8N50A5,CS8N50A4,SBT40U150PT,CS8N50A2,MUR4020PT,SBT30L45FCT,SBM20V60CS,SBM20V60CT,LC65R190F,SBT40U100PTS,MBR20150CT,MBR20150CS,SBT40U100CT,SBT40L80DC,MBR30100PT,LX13007A3,LX13007A2,MBR1645DC,LX13007A1,MBR20150DC,SBM20V60DC,LSC10D65T,SBT40U100DC,MBR1645FCT,LSC10D65P,MBR40150PTS-B,MUR5030PT,MUR3040CT-S,MBR4060PT-B,LC65R600F,LX13007B3,LX13007B2,LX13007B1,MUR2060FCT,MUR3040CT-B,LC65R600D,LT100N03AD,HBT20L200FCT,LT100N03AG,SBM20L300FCT,MUR2040DC,CS16N50A6,CS16N50A8,CS16N50A7,MBR40100CT-B,MUR1640FCT,LG120N10AD,LG120N10AF,MUR1560F,LG120N10AG,SBT30L100PT,SBT30L80DC,MUR3060PTS,LT100N04AP,SBT40U100FCT,LT100N04AT,MUR1060FCT,MBR30150FCT,MBR4060DC-B,MBR40200C

选型指南  -  凌讯微电子  - 2023/11/7 PDF 中文 下载

凌讯微电子推出电压范围30V-200V的MOS,适用于HID氙气灯,防反接

过去汽车车灯多采用普通卤素灯泡,这种车灯的瓦数和亮度不够、色温过低、灯色偏黄,而且寿命较短,故障率偏高。HID氙气灯正在汽车车灯领域兴起,与传统卤素灯相比,HID氙气灯具有节能、亮度高、寿命长、安全可靠、色温与太阳光类似等优点。

器件选型    发布时间 : 2024-03-01

凌讯微电子MBR4045系列肖特基二极管推荐,VRRM 45V

凌讯微电子MBR4045系列肖特基二极管,封装可选:TO-220F、TO-220AB、TO-263、TO-247、TO-247S,IO:2*20A,VRRM:45V,IFSM:300A,VF MAX:0.64V。

产品    发布时间 : 2024-06-18

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