1 / 12

FGM Electronics (FGE) Ronald Kroth MAGSON GmbH Berlin Germany

FGM Electronics (FGE) Ronald Kroth MAGSON GmbH Berlin Germany. Fluxgate Electronic s. Electronics Design Excitation Data Acquisition Feedback Housekeeping Control FGE Bread Board Purpose of the Bread Board Differences to the ETUs and FMs Status of the Bread Board FGE ETU and FM

inga
Download Presentation

FGM Electronics (FGE) Ronald Kroth MAGSON GmbH Berlin Germany

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FGM Electronics (FGE) Ronald Kroth MAGSON GmbH Berlin Germany

  2. Fluxgate Electronics • Electronics Design • Excitation • Data Acquisition • Feedback • Housekeeping • Control • FGE Bread Board • Purpose of the Bread Board • Differences to the ETUs and FMs • Status of the Bread Board • FGE ETU and FM • FGE on the 6U Board with PCB • FGE Layout • Estimated Power Consumption

  3. Excitation excitation signal, square wave, ca.10kHz to the sensor’s ringcore A square wave signal drives the excitation resonant circuit.

  4. Data Acquisition The pickup signal form the sensor is amplified by an instrumentation amplifier and sampled by a 14-bit Analog-to-Digital Converter.

  5. Feedback The feedback voltage is generated by two cascaded 12-bit Digital-to-Analog Converters, acting as an “18-bit DAC”. The voltage is converted into the feedback current by a voltage driven precision current source.

  6. Housekeeping Two analog housekeeping signals are supplied, representing the sensor- and electronics temperature. A Pt100 in a resistor bridge is used to generate the signals.

  7. Control • The FGE electronics is controlled by an FPGA with the following tasks: • Generating the Excitation Signal • Reading the ADC Data • Generating the Feedback Values • Calculating the Output Data • Acting as Command Receiver and Data Transmitter

  8. Bread Board • The purpose of the FGE Bread Board is • to test and verify the general electronics design • to test and verify the FPGA design • to test the sensors • Differences to the FGE ETUs and FMs • There are some differences between the Bread Board Design and the ETU and FM design, respectively: • the Bread Board uses a re-programmable ProAsic FPGA • the FPGA core voltages are generated on board by line regulators • there are additional buffers in the digital lines due to the 3.3V IO levels of the ProAsic • the Bread Board has an additional parallel processor interface

  9. Status • The Bread Board is in production and will be available soon. Layout of the Bread Board

  10. U6 Board with PCB • The FGE will co-reside with the PCB on a single 6U board. • The FGE will be placed on the opposite half of J1 connector site. Space for the PCB Layout 6U Board with the FGE Layout

  11. Layout to the back plane to the front panel to the PCB

  12. Estimated Power Consumption • The estimated power consumption for the FGE is made • up by the following contributions: • Excitation 180mW • Preamplifier 180mW • ADC’s 150mW • Feedback 200mW • FPGA 50mW • ______________________________ • Total 760mW

More Related