Magnetoresistive Current Sensor
Mixed Signal ASIC doubles Turnover in one Year
Mixed Signal ASIC
|Industrial sector (PRODCOM code)
||Equipment for industrial automation
The market for current sensor systems is steadily growing in
traditional application areas with an additional explosive growth in automotive
and domestic applications. Current sensors are used in numerous applications.
However, the main application domain is drive control, which is a central
aspect of industrial automation. The sensors supply the information for
the electronic to control axis position, angle, torque and rotation speed.
Without the sensors no immediate feed-back from the drive e.g. on the
load could be obtained and control would be less efficient.
The company LUST Antriebstechnik GmbH has penetrated the market with new
sensor microsystems based on the magnetoresistive technology. Compared
to traditional current sensor technologies these systems offer drastic
savings with respect to weight, volume and costs. However the over 100
million US$ market is dominated by conventional sensors. The sensors are
used for own products and sold to industrial automation companies, that
supply drives and drive control systems as well as complete automation
The standard sensor product family CMS2000, which is already well established
in the market, will be replaced by new products, based on a Mixed-Signal
ASIC for signal conditioning. The existing sensor families use conventional
technologies like discrete components with a lower overall precision and
a larger size. However, LUST already used digital ASIC technology in other
products. The aim of the FUSE project was the development and integration
of a mixed-signal ASIC to integrate the appropriate analog signal conditioning
circuitry for the sensor chip, together with digital functions for the
system calibration and EEPROM storage of calibration data via a serial
interface. This establishes significant improvements in the production
process together with savings in production costs and application benefits
for the end user. The application benefits for the end user are true RMS
current measurement and overcurrent detection. If required, a reduction
in size of 50 % can be realized.
Other products of Lust are drives, inverters and complex drive control
systems for various requirements and power ranges.
The FUSE experiment with a duration of 15 months assured the technology
and know-how transfer by extensive training related to the definition,
design and manufacturing of CMOS ASIC's. The subcontractor has experience
and is specialized in high performance Mixed Signal CMOS ASIC design and
manufacturing as well as in the design and evaluation of magnetic field
The transferred knowledge and experience enables the First User (FU) to
develop and design a new family of current sensor products, which establish
unique selling properties and will guarantee a pay back period of less
than 18 month and a ROI of approximately 90% during the first year of
application or of 450% for the estimated lifetime of five years. The profitability
can be related mostly to cost saving of about 50 % that are mainly realized
through the improvement of the calibration process of the sensor device.
Moreover, the ability to use this Mixed Signal CMOS ASIC technology is
fundamental for future projects intended to develop sensor systems with
improved measurement accuracy and extended signal conditioning functions.
LUST Antriebstechnik GmbH
|You can also benefit from microelectronics
Mixed Signal ASIC technology provided LUST Antriebstechnik GmbH with
the means of improving its products and enhancing its market position.
You can also achieve significant benefits by acquiring the right microelectronics
technology and utilising it in your product or manufacturing process.
You can get help from FUSE to realise this.
FUSE is a technology transfer programme, funded by the European Commission to stimulate the wider use of microelectronics technologies by European enterprises to increase their competitiveness and enhance their economic growth. The demonstrator described here is one of many examples in the public FUSE portfolio covering the whole spectrum of microelectronics technologies and spanning a wide range of applications and industry sectors.
FUSE provides you with:
- Best practice in acquiring specific microelectronics technologies and conducting full development projects through the FUSE portfolio of real life demonstrator documents.
- Local training and expert support to plan your innovation realistically and help you conduct your project successfully.
Further information and support relating to this and other demonstrators can be obtained from the addresses below.
||Guiding Technology Transfer Node
|For further information and support regarding this case study, please contact a Technology Transfer Node (TTN) in your region.