STDES-AKI003V1

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Sigma-delta current sensing solution for industrial drive applications

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Description

The STDES-AKI003V1 provides an accurate current sensing for high-end industrial motor control applications based on three-phase inverter topology. It is a solution tailored for high-end servo drive.

It has been designed to be used in place of the STEVAL-CTM008V1 within the STEVAL-CTM009V1 kit. A complete system can be arranged using the STEVAL-CTM009V1, the STM32H7B3I-EVAL as control board and the STDES-AKI003V1.

The board features three ISOSD61 16-bit isolated sigma-delta modulators with low voltage differential signaling (LVDS) and single-ended options.

The solution features six power metal strip shunt resistors (two in parallel for each phase) of 5 mΩ 7 W for the current sensing placed inline with the motor phases.

The STDES-AKI003V1 allows the insulated current sensors (ICS) for phase currents reading via a dedicated 20-pin connector for sigma-delta streams compatible with the STM32H7B3I-EVAL board.

A customized version of X-CUBE-MCSDK firmware exploiting the sigma-delta hardware and filtering capabilities of the STM32H7B3I-EVAL is available.

The STDES-AKI003V1 three-phase sigma-delta current sensing board is a fully assembled board developed for performance evaluation only, not available for sale.

  • All features

    • Accurate current sensing for high-end industrial motor control applications based on ISOSD61
    • 6 kV galvanic isolation, 16 bit sigma-delta modulator, up to 25 MSps
    • Fast and dynamic response to load variations
    • Compatible with field-oriented control for PMSM motors
    • Triple simultaneous current sampling via shunt resistors placed in line with the motor phases
    • Fully compatible with the STM32H7B3LI DFSDM peripheral
    • Tailored for high-end servo drives

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Part Number:

STDES-AKI003V1

Core Product:

ISOSD61, STM32H7B3I-EVAL

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