STEVAL-ISA147V3

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500 W fully digital AC-DC power supply (D-SMPS) based on STM32F334C8 microcontroller

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  • The STEVAL-ISA147V3 is a digital switch mode AC-DC converter consisting of two power stages: an input semi-bridgeless power factor corrector (SBPFC) controlled by an STM32F051K8, and a regulation stage implemented with an LLC half bridge with synchronous rectification (SR), controlled by an STM32F334C8 microcontroller.

    This 500 W AC-DC converter uses the so-called bridgeless PFC topology, with the advantage of lower conduction losses and higher efficiency by eliminating the need for a diode rectifier stage. This choice also allows a reduced component count compared to a standard PFC.
    The input stage is typically controlled using an outer voltage loop for bus voltage regulation and an inner control loop to shape the current according to a sinusoidal waveform. The outer loop adjusts the current reference in order to maintain a regulated bus voltage, independent of load or input voltage variations. The output isolation and regulation stage is implemented using a half-bridge LLC topology, operating with constant duty cycle and variable frequency control.

    Key Features

    • Input AC voltage: 90 V to 264 V
    • Input AC frequency: 45 Hz to 65 Hz
    • Nominal power: 500 W
    • Output voltage: 12 V
    • Semi-Bridgeless PFC stage
    • DC-DC stage: resonant LLC with synchronous rectification
    • Peak efficiency: 94%
    • PFC switching frequency: 60 kHz
    • DC-DC switching frequency: 80 kHz to 115 kHz (burst mode above)
    • HF transformer isolation voltage: 4 kV
    • Cooling: natural convection up to 300 W, forced cooling above 300 W
    • PFC control: managed by STM32F051K8
    • LLC control: managed by STM32F334C8
    • Input short-circuit protection
    • Input under/overvoltage protection
    • Input under/overfrequency protection
    • DC Bus under/overvoltage protection
    • Output short-circuit protection
    • Output under/overvoltage protection
    • Overtemperature protection
    • RoHS compliant

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Technical Documentation

    • Description Version Size Action
      DB2879
      500 W fully digital AC-DC power supply (D-SMPS) based on STM32F334C8 microcontroller
      1.0
      377.63 KB
      PDF
      DB2879

      500 W fully digital AC-DC power supply (D-SMPS) based on STM32F334C8 microcontroller

    • Description Version Size Action
      AN4930
      500 W fully digital AC-DC power supply (D-SMPS) evaluation board
      1.0
      8.73 MB
      PDF
      AN4930

      500 W fully digital AC-DC power supply (D-SMPS) evaluation board

    • Description Version Size Action
      UM2064
      Getting started with the 500 W fully digital AC-DC power supply (D-SMPS) evaluation board
      1.0
      1.15 MB
      PDF
      UM2064

      Getting started with the 500 W fully digital AC-DC power supply (D-SMPS) evaluation board

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA147V3 gerber files 1.0
      926.29 KB
      ZIP

      STEVAL-ISA147V3 gerber files

    • Description Version Size Action
      STEVAL-ISA147V3 BOM 1.1
      133.32 KB
      PDF

      STEVAL-ISA147V3 BOM

    • Description Version Size Action
      STEVAL-ISA147V3 schematic 1.0
      156.18 KB
      PDF

      STEVAL-ISA147V3 schematic

Publications and Collaterals

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      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

Legal

    • Description Version Size Action
      Terms of use 1.7
      57.54 KB
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      Terms of use

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA147V3
Active
CARD Industrial Ecopack2 -

STEVAL-ISA147V3

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Budgetary Price (US$)*/Qty
STEVAL-ISA147V3 Available at 6 distributors

Distributor availability ofSTEVAL-ISA147V3

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2 1 Order Now
RS COMPONENTS EUROPE 2 1 Order Now
ARROW EUROPE 5 0 Order Now
MOUSER WORLDWIDE 2 1 Order Now
Farnell Element14 EUROPE 4 1 Order Now
ANGLIA Live EUROPE 1 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

5

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Buy now STM32F334C8; STM32F051K8; STL160N3LLH6; STP57N65M5; STP13NM60ND; STPSC1006D; STTH1L06U
Active
ST 3A991A2 NEC ITALY - 325.0 / 1

STEVAL-ISA147V3

Core Product

STM32F334C8; STM32F051K8; STL160N3LLH6; STP57N65M5; STP13NM60ND; STPSC1006D; STTH1L06U

Marketing Status

Active

Budgetary Price (US$)*/Qty

325.0 / 1

Distributor availability ofSTEVAL-ISA147V3

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2 1 Order Now
RS COMPONENTS EUROPE 2 1 Order Now
ARROW EUROPE 5 0 Order Now
MOUSER WORLDWIDE 2 1 Order Now
Farnell Element14 EUROPE 4 1 Order Now
ANGLIA Live EUROPE 1 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

5

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Supplier

ST

ECCN (US)

3A991A2

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

325.0 / 1

Country of Origin

ITALY

Board production status

-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors