Closed Loop Integrated Fluxgate-Based Current Measurement Reference Design with Bit Stream Output
Description
The TIDA-00907 reference design provides a reference solution for accurately measuring three phase inverter currents using Closed-loop Fluxgate magnetic current sensors. It consists of magnetic core with compensation winding interfaced to driver IC with built-in Fluxgate sensor. The design provides bit-stream output using non-isolated delta-sigma modulators with an option to connect to 3.3V or 5V microcontrollers for Digital Filtering. Use of delta-sigma modulators enable customized filtering for control algorithm and over-current protection of power switches.
Features
- Designed to accurately measure three phase inverter currents up to 50Arms (nominal) and 150A (max)Closed-Loop Current Sensing using Magnetic Module: 200kHz Bandwidth Fluzgate Sensor (DRV421) and Delta-Sigma Modulator (ADS1203) Enables Customized Filtering for Control AlgorithmCalibrated Current Measurement Accuracy of ±0.8% (typical) Across Temperature Range from -25 °C to 85 °CIntegrated Overload Detection Enables Direct Interface to MicrocontrollerTested Design with Hardware-Based Sinc Filter Available in Delfino MicrocontrollerOption for Level-Translated Bit-Stream Output to Interface with 3.3V or 5V Controllers
Applications
- String Inverters
- AC Drive Power Stage Module
- Micro Inverters
- Injection Molding Machines
- AC Charging (Pile) Station
- AC Drive Energy Recovery
- Servo Drive Power Stage Module
- Brushless DC Motor Drives
- Motor Brakes
- Motor Overload Relays & Contactors
- Servo Drive Energy Recovery
Product Categories
- Data Converters
| Download the bill of materials for TIDA-00907 | Download |
Test Data
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Download the test file for TIDA-00907| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00907 Gerber | 16 May 2016 | ZIP | 1826 | |
| TIDA-00907 CAD Files | 16 May 2016 | ZIP | 5678 | |
| TIDA-00907 Layer Plots | 16 May 2016 | ZIP | 1239 | |
| TIDA-00907 Assembly Files | 16 May 2016 | ZIP | 320 | |
| TIDA-00907 BOM Files | 16 May 2016 | ZIP | 90 | |
| TIDA-00907 Schematic Files | 16 May 2016 | ZIP | 797 |