Analog Devices LT4322 Floating High Voltage Active Rectifier Controller
FEATURES
- Yakazara yakazara evaluation board ye LT4322
- Yakakwira voltage hafu-wave kugadzirisa
- AC Diode kutsiva
EVALUATION KIT ZVIRI MUKATI
- DC3117A yekuongorora bhodhi
ZVINYORWA ZVINODIWA
- Nhoroondo ye LT4322
ZVINHU ZVINODIWA
- AC magetsi ekupa
- Voltmeter
- Constant current kana resistive load
- Oscilloscope
GENERAL DESCRIPTION
Demonstration circuit 3117A inoratidzira inoyangarara, yakakwira voltage active rectifier controller LT4322, iyo inokodzera maapplication anoda yakakwira voltage mutsetse kugadzirisa neDC zvinobuda kusvika ku170V. Kunyange zvikamu zvakasarudzwa kuti zvigadzirise kushanda pa60Hz, iyo LT4322 inokwanisa kushanda kusvika ku100kHz.
Iyo LT4322 inotyaira N-Channel MOSFET kuita hafu-wave rectification ichishanda se diode asi ine yakaderera simba dissipation. Iyi topology inorerutsa zvipingaidzo zvekupisa uye inowedzera inogona kushandiswa kubuda voltage. N-Channel topology ine akawanda mabhenefiti pamusoro peP-Channel topology, kusanganisira yakaderera RDS(ON), diki tsoka, mutengo wakaderera, uye kusarudzwa kwakakura kweMOSFET.
Zvinhu zvishoma zvakakosha chete zvinodiwa kuti ushande iyo LT4322 sehafu-wave rectifier: imwe chete N-Channel MOSFET (M1), reservoir capacitor (C1B), AC-inotsvedza capacitor (C2), gedhi capacitor (CG1) , uye mumashandisirwo apo peak-to-peak input voltage inodarika 60V, iyo N-Channel depletion mode MOSFET (M2).
Design files yedunhu iri redunhu anowanikwa pa: http://www.analog.com.
DC3117A EVALUATION BOARD MUFANANIDZO
- Mufananidzo 1. DC3117A Evaluation Board Photograph
PERFORMANCE SUMMARY
Zvinyorwa zviri paTA = 25 ° C, kunze kwekunge zvaonekwa.
Tafura 1. Pfupiso Yekuita1
| Parameter | Test Conditions/Comments | Min | Typ | Max | Unit |
| AC Kuisa Voltage | Shorting Resistor R1 Yakaiswa Hapana Shorting Resistor R1 |
7 | 20 | VAC(RMS) | |
| 7 | 120 | 140 | VAC(RMS) | ||
| Kubuditsa Voltage | Shorting Resistor R1 Yakaiswa Hapana Shorting Resistor R1 |
9.5 | 60 | V | |
| 9.5 | 170 | 200 | V | ||
| Output Current
|
Ne Yakaiswa C2, inodzivirira mutoro NeKuwedzera C2, inodzivirira mutoro |
1.2 |
ARMS | ||
|
5 |
ARMS | ||||
Yakagadzirwa uchishandisa yakasarudzika zvikamu kubva kuZvikamu Rondedzero.
ZVINOKOSHA KUTANGA MAITIRO
YAMBIRO! Yakakwira voltagbvunzo dze e dzinofanirwa kuitwa nevashandi vanokwanisa chete. Senzira yekuchengetedza, vanhu vangangoita vaviri vanofanirwa kunge varipo panguva yekukwira kwevoltitage testing. Pazasi pebhodhi pane ma conductor akafumurwa, uye chero mabhanana mapulagi aripo anobuda nepasi pebhodhi. Iyo yepasi pepamusoro inofanira kunge isiri-conductive uye yakajeka kune chero waya, solder, uye mamwe madhiri ekufambisa.
Kuratidzira kuri nyore kweDC3117A kushanda kwakafanana:
- Batanidza AC magetsi ekuisa uye GND, sezvakaratidzwa mukati Mufananidzo 2. Ita shuwa kuti yakabuda voltage yekupa iri mukati meiyo voltage huwandu hweDC3117A, sezvakaratidzwa mu Tafura 1. Tarisa kuti shorting resistor R1 yakabviswa isati yapfuura 20VAC(RMS). Chenjerera kuti usapfuure 24V kana 5A kana uchishandisa barrel jack (J5). Shandisa turrets (E1 kusvika E4) uye mabhanana jacks (J1 kusvika J4) mune ese anoshanda azvino / vol.tage ranges.
Mufananidzo 2. Measurement Equipment Setup
- Batanidza mutoro uye voltmeter pane inobuda uye GND, sezvakaratidzwa mukati Mufananidzo 2. Dzikisa mutoro wazvino kusvika zero. Isa iyo voltmeter muDC volt kuyerwa maitiro.
- Simudza iyo AC yekupinza magetsi voltage kusvika pamwero waunoda. Tarisa kuburitsa voltage ne voltmeter. Kune zviitiko apo iyo yekuisa yekuisa iri 120VAC mutsara voltage, iyo voltmeter inoverenga ~ 170VDC.
- Simudza mutoro ikozvino kusvika padanho rinodiwa. Iva nechokwadi chokuti mutoro wezvino uri mukati memutoro mukuru wezvino, sezvakaratidzwa muTebhu 1. Iyo yakaiswa 150µF output smoothing capacitor (UCS2D151MHD C2) ripple current rating inobvumira mutoro kusvika ku1.2ARMS pa25 ° C. Batanidza imwe C2 kana sarudza capacitor ine ripple yazvino rating yakakwira kupfuura iyo UCS2D151MHD yemitoro yakakura, kusvika ku5ARMS.
BOARD DESCRIPTION
PAKUPEDZAVIEW
DC3117A inoratidzira LT4322 kudzora N-Channel MOSFET kuti ipe inoshanda zvakanyanya, compact, uye yakaderera-profile mhinduro yehafu-wave rectification. Kunyatsotariswa kwakabhadharwa kune bhodhi dhizaini kuti ipe inokwana 104mil (2.6mm) kubvumidzwa pakati pendege hombe dzemhangura uye kubvumidzwa kwakawanda sezvinobvira pakati pezvikamu uye zviteshi kuti ive nechokwadi chekushanda kweDC3117A kusvika pakakwirira vol.tage yezvikamu zvakasarudzwa.
DC3117A ibhodhi 2-layer ine 2oz mhangura pane yega yega. Iyo mhangura munzira yemagetsi inogona kutakura 20A nguva dzose, zvichienderana nemamiriro ekunze. Uyezve, ndege dzese dzemhangura dziri munzira-yemagetsi dzinopetwa kaviri pasi pemhangura layer pazvinogoneka. Nezvimiro zvakasara zvakadaro, mutoro wezvino unongogumira ku1.2ARMS neiyo ripple ikozvino rating yeC2.
Mushure mekutsiva C2 ne 2.2mF capacitor, mutoro wazvino unogona kuwedzerwa kusvika ku5ARMS pane ambient tembiricha ye25 ° C. Pa 5ARMS takura tembiricha yepasuru ye IPT60R050G7 inosvika 95°C.
Kuti ive nyore yekuongorora probe mapoinzi akapihwa kune iyo LT4322 pini.
Iyi inotevera tsananguro pfupi yezvikamu zvikuru zveDC3117A.
U1 - MUTAURI WEDIODE
U1 ndiyo LT4322 mune 8-pini, 3mm x 3mm parutivi-inonyorova DFN package. Kuti uwane rumwe ruzivo, tarisa kune iyo LT4322 data sheet pakushanda kwayo.
M1 - IDEAL DIODE MOSFET
M1 ndiyo Infineon N-Channel MOSFET IPT60R050G7 mune HSOF package. Yakasarudzirwa yayo 600V drain-to-source breakdown voltage, ± 20V VGS(MAX), uye 43mΩ drain-to-source on-state resistance (pa10V VGS). M1's ± 20V VGS (max) inoenderana neiyo 12V muganho paLT4322's gedhi drive. Kana iyo yekupinza uye inobuda pa -170V uye +170V zvakateerana (peak AC line voltage), M1's drain-to-source voltage 340V. Izvi zviri pasi peM1's 600V drain-to-source breakdown voltage specification.
M2 - DEPLETION Mode MOSFET
M2 ndiyo Microchip N-Channel depletion mode MOSFET DN2450K4 mune TO-243AA (SOT-89) package. Yakasarudzirwa yayo 500V drain-to-source breakdown voltage uye 700mA IDSS. Kana kuiswa kuri -170V uye kubuda kuri pa170V, M2's drain-to-source voltage iri padyo ne340V, zvakachengeteka pazasi pe500V yekuputsika kwayo. Iyo 700mA IDSS inobvumira iyo 50mA kusvika 100mA peak ikozvino inodiwa neLT4322 VDDC pini uku ichizorodza yayo VDDA reservoir capacitor.
C1 UYE C1B - VDDA RESERVOIR CAPACITORS
Nekuda kwekusimba kwavo voltage coefficient, kukosha chaiko kwe multilayer ceramic capacitors kazhinji kuderera pane zvataurwa, kunyanya pa vol.tagiri pedyo necapacitor's maximum voltage rating. Uyezve, voltage coefficient ibasa rekukura kwemuviri we capacitor. A 2220, 25V-yakatemerwa ceramic capacitor inosarudzirwa C1B kuwana kukosha kwechokwadi kwe22µF pa12V inoshanda vol.tage yeiyi 60Hz application.
Neimwe nzira, kune 60Hz maapplication, vashandisi vanogona kuzadza C1 ine 0.1µF ceramic capacitor uye solder 22µF aluminium electrolytic capacitor pakati peLT4322's VDDA pini uye yekuisa trace pachinzvimbo chekuzadza C1B. Kuti uwane mafambiro ekuisa ≥ 200Hz, vashandisi vanogona kusiya C1B isina vanhu uye vangozara C1 chete.
CG1 – GATE CAPACITOR
Iyo LT4322 inobhadharwa zvakakwana ne 10nF capacitance pakati pegedhi uye sosi yesimba rekunze MOSFET. Iko kudikanwa kweCG1 kunoenderana nesarudzo yeM1 uye yayo yemukati CISS kukosha. Panyaya ye IPT60R050G7, CG1 inogarwa ne 10nF capacitor yekuvandudza kugadzikana mukutonga mberi. Kuti uwane rumwe ruzivo, tarisa kune iyo Gate Capacitor Selection chikamu cheLT4322 data sheet.
C2, C2-2 - OUTPUT CAPACITOR
Output capacitors C2 uye C2-2 inopa inobuda mutoro ikozvino kune yakawanda yenguva ye AC. Kuti uwane rumwe ruzivo, tarisa kuOutput Capacitor COUT Sarudzo yeLT4322 data sheet pakusarudza iyo capacitance kukosha sebasa rekubuda mutoro wazvino, AC nguva, uye yakanyanya kubvumidzwa kubuda vol.tage droop. Mufananidzo 3 inoratidza kubuda kwevoltage droop kubva 170V kusvika 72V ye 1.2ARMS resistive load uye 16.7ms nguva (60Hz) apo C2 = 150µF.
Mufananidzo 3. Chimiro Chekuita Pasi pe1.2ARMS Resistive Load
Vashandisi vanofanirawo kuona kuti iyo RMS iripo mune capacitor haipfuure iyo yakanyanya ripple ikozvino rating kuitira kuti iyo capacitor lifetime isakanganiswa. An electrolytic capacitor's ripple current rating ibasa reRMS yazvino, frequency, uye ambient tembiricha. Tarisa zvakatemwa nemugadziri uye uone kuti mudziyo wakasarudzwa unokodzera kushanda mukati meiyo frequency inodiwa, tembiricha, uye kurodha mamiriro azvino echishandiso.
OPTIONAL COMPONENT PADS
Zvimwe zvikamu (M1, M2, C2, uye C3) zvinopihwa mamwe mapedhi asina kuvharwa kuti aedze maitiro akasiyana uye saizi kana mamwe maseketi kubva LT4322 data sheet. Mamwe eaya mapedhi ekuwedzera ari kuseri kwebhodhi.
M1 ine yepasirese MOSFET tsoka inotsikirira pamativi ese ekunze kuti agare simba-SO8, DPAK, D2PAK, HSOF, uye LFPAK mapakeji. Vashandisi vanogona kuzadza iyo yepamusoro nepasi M1 tsoka dzetsoka panguva imwe chete kubatanidza maviri emagetsi MOSFETs akafanana, nekudaro vachidzikisa iyo yakazara MOSFET kurasikirwa kwemagetsi nechikamu chezviviri. M2 ine tsoka kuseri kweiyo DPAK package.
Nepo bhodhi racho rizere nearuminiyamu imwe chete electrolytic capacitor C2 pane inobuda voltage by default, kune tsoka dzeimwe aruminiyamu electrolytic capacitor C2-2 uye multilayer ceramic capacitor C3 pane zvakabuda. Izvi zvinobvumira vashandisi kuti vaedze misanganiswa yakasiyana-siyana yehuwandu hwekubuda capacitance uye ESR ine zvakasiyana-siyana zvinobuda zvinotakura.
Zvikamu R3, R4, C4, uye C5 zvinopihwa kuti zvifambise zvingasarudzika snubbing network. Kunyangwe ivo vachigarwa nekusarudzika, ivo havana basa mumashandisirwo mazhinji. Kuti uwane rumwe ruzivo, tarisa kuInput Snubber chikamu cheLT4322 data sheet.
VOLTAGE, CURRENT, FREQUENCY MODIFICATIONS
Zvepamusoro voltage oparesheni, maona Tafura 2 uye ive nechokwadi chekuti zvikamu zvataurwa zvinosangana kana kudarika zvishoma voltage chinodiwa chezvaunoda kuisa / kubuda voltages. Nekuda kweiyo hafu-wave topology, cherechedza kuti zvikamu M1 neM2 zvinofanirwa kumirisana nepeak-to-peak vol.tage yezvinopihwa.
Kuti ugadzirise bhodhi repamusoro ikozvino, edza zvinotevera muhurongwa uhwu, uchiri kuona kuti zvikamu zvese zvebhodhi zvinosangana kana kudarika zvidiki zvinodiwa zvinotsanangurwa mu. Tafura 2:
- Simudza kukosha kweC2 uye ripple ikozvino kugona
- Sarudza M1 inotsiva ine yakaderera RDS(ON) kukosha
- Wedzera yechipiri inoenderana FET mukuwirirana uchishandisa kuseri kweMOSFET tsoka
Kune maapplication anoshandisa AC yekuisa inopihwa isingasviki 20VRMS, R1 inogona kuiswa kune pfupi M2 kubva kudunhu. Kune yakakwira frequency AC yekuisa, yakanakira kusarudza yakaderera kukosha C1 kunyangwe iyo yakaiswa kukosha inoshanda. Kune ma frequency ari pasi pe60Hz, C1 inofanirwa kuwedzerwa. Kuti uwane rumwe ruzivo, tarisa kuVDDA Capacitor Selection chikamu cheLT4322 data sheet.
Tafura 2. Voltage Zvinodikanwa
| Chikamu Reference | Minimum Voltage Zvinodiwa |
| C1, C1B, CG1 | 16V |
| C2, C3, C4, C5 | VIN(PEAK) kana Desired VOUT(MAXDC) |
| m1, m2 | BVDSS ≥ VIN(PEAK-PEAK) |
EVALUATION BOARD SCHEMATIC
Mufananidzo 4. DC3117A Schematic Diagram
KUOdha RUZIVO
BILL OF MATERIALS
Tafura 3. DC3117A Bhiri reZvinhu
| Item | Quantity | Referensi Dhizaini | Chikamu Tsanangudzo | Mugadziri, Chikamu Nhamba |
| Inodiwa Circuit Zvikamu | ||||
| 1 | 1 | C1 | Capacitor, 22 µF, X7R, 25 V, 10%, 1210 | AVX, 12103C226KAT2A Kemet, GRM32ER71E226KE15L Murata, CL32B226KAJNNNE Samsung, CL32226KAJNNNE |
| 2 | 1 | C2 | Capacitor, 150 µF, Aluminium Electrolytic, 200 V, 20%, THT, Radial | Nicocon, UCS2D151MHD |
| 3 | 1 | C1B | Capacitor, CER 22 µF, 25 V, X7R, 2220 | Kemet, C2220C226K3RAC7800 Kyocera AVX, 22203C226KAZ2A Cal-chip Electronics, GMC55X7R226K25NT |
| 4 | 1 | M1 | Transistor, N-Channel MOSFET, 650 V, 44 A, HSOF-8 | Infineon, IPT60R050G7 Infineon, IPT60R050G7XTMA1 |
| 5 | 1 | M2 | Transistor, N-Channel MOSFET, Depletion Mode, 500 V, 230 mA, SOT-243AA (SOT-89) | Microchip, DN2450N8-G |
| 6 | 1 | RDG1 | Resistor, 0 Ω, 1/16 W, 0402 | NIC, NRC04ZOTRF R Ω, MCR01MZPJ000 Vishay, CRCW04020000Z0ED Yageo, RC0402JR-070RL |
| 7 | 1 | U1 | IC, Active Bridge Ideal Diode Controller, DFN-8 | ANALOGI DEVICES, LT4322RDDM#PBF |
| Yekuwedzera Demo Board Circuit Zvikamu | ||||
| 8 | 0 | C2-2 | Capacitor, 150 µF, Aluminium Electrolytic, | Nicocon, UCS2D151MHD |
| 200 V, 20%, THT, Radial | ||||
| 9 | 1 | C4 | Capacitor, 0.01 µF, X7R, 2000 V, 10%, 2220 | Kemet, C2220C103KGRACTU |
| 10 | 1 | C5 | Capacitor, 0.01 µF, U2J, 250 V, 5%, 1206 | Murata, GRM31B7U2E103JW31 |
| 11 | 0 | C3 | Capacitor, Sarudzo, 1812 | |
| 12 | 1 | CG1 | Capacitor, 0.01 µF, X7R, 16 V, 10%, 0805 | Wurth Elektronik, 885012207039 |
| 13 | 1 | D1 | LED, Green, Mvura-yakajeka, 0805 | Wurth Elektronik, 150080GS75000 |
| 14 | 0 | M1-1 | Transistor, N-Channel MOSFET, 650 V, 44 | Infineon, IPT60R050G7 |
| A, HSOF-8 | Infineon, IPT60R050G7XTMA1 | |||
| 15 | 0 | M2-1 | Transistor, N-Channel MOSFET, Depletion Mode, 500 V, 350 mA, TO -252AA (D- PAK) | Microchip, DN2450K4-G |
| 16 | 0 | R1 | Resistor, Sarudzo, 2010 | |
| 17 | 1 | R2 | Resistor, 270 kΩ, 5%, 3/4W, 2010, AEC- | Panasonic, ERJ-12ZYJ274U |
| Q200 | ||||
| 18 | 1 | R3 | Resistor, 0 Ω, 1/8 W, 0805 | Yageo, RC0805JR-070RL |
| 19 | 1 | R4 | Resistor, 7.5 Ω, 5%, 1/4 W, 1206 | Yageo, RC1206JR-077R5L |
| Hardware: YeDemo Board Chete | ||||
| 20 | 4 | E1,E2,E3,E4 | Mapoinzi ebvunzo, turret, 0.094 ″ MTG. gomba, PCB 0.062 ″ THK | Mill-Max, 2501-2-00-80-00-00-07-0 |
| 21 | 4 | J1,J2,J3,J4 | Zvibatanidza, Banana Jack, Mukadzi, THT, Asina-Inusulated, , Swage , 0.218″ | Keystone, 575-4 |
| 22 | 1 | J5 | Zvibatanidza, DC PWR Jack , Mukadzi, 3 Term, 1 Port, 2 mm ID, 6.5 mm OD, HORZ, R/A, SMT, 24 VDC,5A | CUI INC., PJ-002AH-SMT-TR |
| 23 24 |
1 4 |
LB1 MP5, MP6, MP7, MP8 |
Label Spec, Demo Board Serial Number Standoff, Nylon, Snap-On, 0.25 ″ (6.4 mm) |
Brady, THT-96-717-10 Keystone, 8831 Wurth Elektronik, 702931000 |
| 25 26 |
1 0 |
Pcb1 TP1, TP2, TP3, TP4 |
PCB, DC3117A Mapoinzi ekuedzwa, 0.044″, 0.275 L x 0.093 W, TH |
Mutengesi Akabvumirwa, 600-DC3117A Keystone, 1036 |
ESD Chenjerera
ESD (electrostatic discharge) inonzwisisika mudziyo. Zvishandiso zvinochajiswa uye mabhodhi edunhu anogona kuburitsa pasina kuonekwa. Kunyangwe ichi chigadzirwa chine patented kana proprietary dziviriro yedunhu, kukuvara kunogona kuitika pamidziyo inoiswa pasi pesimba repamusoro ESD. Naizvozvo, kwakaringana ESD chenjedzo dzinofanirwa kutorwa kudzivirira kudzikisira kwekuita kana kurasikirwa kwekuita.
Mitemo neMitemo yeMutemo
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Analog Devices LT4322 Floating High Voltage Active Rectifier Controller [pdf] Bhuku reMushandisi DC3117A, LT4322 Inoyangarara Yakakwirira Voltage Active Rectifier Controller, Inoyangarara Yakakwira Voltage Active Rectifier Controller, Yakakwira Voltage Active Rectifier Controller, Active Rectifier Controller, Rectifier Controller, Controller |
