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STMicroelectronics VIPER27HD | Demoboard STEVAL-ISA172V2
2 kW fully digital AC-DC power supply (D-SMPS) evaluation board
Overview
| Topology | Power Factor Correction |
| Input voltage | 90-264 V |
| Output 1 | 48 V / 42 A |
| IC revision | 2 |
Description
The STEVAL-ISA172V2 is a 2 kW fully digital switch mode AC-DC converter consisting of two power sections: a two phase interleaved power factor corrector (PFC) and a DC-DC phase-shifted full-bridge converter, controlled by a STM32F334 microcontroller for each section.The interleaved PFC comprises two boost converters operating with 180° out of phase, based on 600 V MDmesh M2 Power MOSFETs. The downstream section comprises of a DC-DC phase-shifted full-bridge converter based on MDmesh DM2 Power MOSFETs and performing voltage step down using HF transformer, with a primary to secondary ratio chosen to maintain high enough efficiency and regulation over the entire operating range.On the primary side the transformer is supplied by the full-bridge converter and switching losses are reduced thanks to zero voltage switching (ZVS) operation.On the secondary side synchronous rectification (SR) is used to ensure low conduction losses. The output voltage waveform is rectified by STripFET Power MOSFETs and then smoothed by the output filter.
Features
◾Output voltage: 48 V or 52 V, Max output current: 42 A◾Input AC frequency: 45 Hz to 65 Hz◾Nominal output power: 2 kW◾Interleaved PFC stage◾PFC switching frequency: 60 kHz◾PFC Average current mode control◾Cycle by cycle PFC current control◾Maximum power factor: 0.99◾DC-DC stage: full-bridge phase-shifted ZVS with synchronous rectification◾DC-DC switching frequency: 100 kHz◾Overall efficiency: 80 PLUS Platinum level◾HF transformer isolation voltage: 4 kV◾Forced cooling with air flow speed modulation according to the output power◾Over-temperature protection◾Output short-circuit protection◾PFC control & DC-DC control: managed by STM32F334C8◾PFC power stage based on MDmesh M2 Power MOSFETs and SiC Diodes◾DC-DC power stage based on MDmesh DM2 Power MOSFETs◾Synchronous rectification based on STripFET Power MOSFETs◾Active clamp circuit based on MDmesh DM2 Power MOSFETs◾EMC filter for noise reduction◾RoHS compliant
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Ti | f(mm) | SW(mm) | To | VIN | VOut1(V) | IOut1(mA) | VOut2(V) | IOut2(mA) | Vaux(V) | ISAT(mA) | fswitch(kHz) | NPRI : NSEC : NAUX | Size | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | n | ∫Udt(µVs) | RDC 1(mΩ) | RDC 2(Ω) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | – | – | – | – | – | SizeXXL | Rated Current25 A | Inductance1 mH | DC Resistance4.5 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length44 mm | Width23.5 mm | Height43 mm | MountTHT | – | – | – | – | ||||
 | WE-CST Current Sense Transformer, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CST Current Sense Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | SizeEE5 | Rated Current20 A | Inductance0.98 mH | – | Rated Voltage80 V (AC) | Insulation Test Voltage500 V (AC) | – | Length7.7 mm | Width6.9 mm | Height5.33 mm | MountSMT | Turns Ratio1:70 | Voltage-µSecond35 µVs | DC Resistance 10.75 mΩ | DC Resistance 22.2 Ω | |||
 | WA-SSTIE Steel Spacer Stud, metric, internal/external, M3, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SSTIE Steel Spacer Stud, metric, internal/external | Inner ThreadM3 | – | SW5 mm | Outer ThreadM3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | MaterialSteel | Length10 mm | – | – | – | – | – | – | – | |||
 | WA-SSTII Steel Spacer Stud, metric, internal/internal, M3, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SSTII Steel Spacer Stud, metric, internal/internal | Inner ThreadM3 | – | SW5 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | MaterialSteel | Length10 mm | – | – | – | – | – | – | – | |||
 | WA-SNRM Snap Rivet Mount Spacer, –, 4 mm | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SNRM Snap Rivet Mount Spacer | – | Drilling in Panel4 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | MaterialNylon 66 | Length19.1 mm | – | – | – | – | – | – | – | |||
750315158 | Gate Drive Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Gate Drive Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | WE-OLSTM Offline Flyback Transformers, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-OLSTM Offline Flyback Transformers | – | – | – | – | Input Voltage 265 - 297 V (AC) | Output Voltage 15 V | Output Current 1500 mA | Output Voltage 212 V | Output Current 2220 mA | Auxiliary Voltage15 V | Saturation Current420 mA | Switching Frequency 115 | Turns Ratio19.14:1:2.43:3 | SizeEE16/7/5 | – | Inductance2.3 mH | – | – | Insulation Test Voltage3000 V (AC) | – | Length18.5 mm | Width16.5 mm | Height18.8 mm | MountTHT | Turns Ratio19.14:1:2.43:3 | – | DC Resistance 18000 mΩ | DC Resistance 20.07 Ω |