製品概要
概要
The EVALST-3PHISOSD evaluation board implements a complete 3-phase current meter with low-cost shunt current sensors.
The solution is based on the ISOSD61 device, a single channel, galvanically isolated, second order sigma-delta modulator, measuring current for each phase through a shunt current sensor. Sensing circuitry and PCB layout are optimized to maximize signal-to-noise ratio for optimal accuracy.
The ISOSD61 oversamples the signal using a clock (up to 15 MHz) distributed in a synchronized way by the microcontroller and outputs the current sigma-delta bitstreams.
The firmware embedded in the solution exploits the DFSDM filters of the STM32F413RH to convert the three bitstreams into 24-bit current data, at a selectable sampling rate.
The firmware also implements a virtual COM port communication to easily access the internal parameters to read data and to calibrate the board.
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特徴
- 3 channels current decimated samples available
- Sampling frequency and measurement bandwidth selectable
- Communication through USB in virtual COM port mode with shell commands
- 6 kV galvanic isolation between the phases with 8 mm creepage and clearance
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サンプル & 購入
| 製品型番 | 製品ステータス | Budgetary Price (US$)*/Qty | STから購入 | Order from distributors | パッケージ | 梱包タイプ | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | コア製品 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EVALST-3PHISOSD | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください |
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EVALST-3PHISOSD 量産中
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
（*）概算用の参考価格（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。