Magnetic Encoder ICs Flexibly Rethought

Press photo of iC-PVS (iC-Haus)

The iC-PVS from iC-Haus is a universal Hall sensor IC for incremental or absolute position detection with a battery-buffered 56-bit position counter. For higher resolutions and highest requirements concerning signal conditioning, it can be easily expanded with the iC-TW29 as an interpolator IC thanks to the Sin/Cos interface.

iC-Haus presents a new kind of Hall sensor IC at this year’s SPS – Smart Production Solutions in Nuremberg on Novemebr 23-25 (Hall 4A, booth 136): The iC-PVS combines a flexibly configurable Hall array front-end with a 56-bit low-power period counter and an integrated 6-bit interpolator. Battery-buffered, it can be used to implement multiturn absolute encoders that operate with conventional incremental scales or gear wheels. Due to the high mounting tolerances compared to classic absolute systems and freely scalable scanning diameters, the iC-PVS is an attractive alternative as a stand-alone solution for encoder systems with low to medium resolutions. Ultra-low power technology (2 to 30 μA) and an integrated battery monitor enable service-free operation for a minimum of 10 years. iC-PVS supports pole wheels or linear scales with a pole width of 1.0 mm to 2.5 mm. Ferrous gear wheels with a gear module of 0.3 to 1.5 can be scanned using a back-bias magnet. With 128 signal periods, for example, angular resolutions of 13 bits can be achieved.

Due to BiSS-C, SPI, and both incremental and analog sin/cos interfaces, iC-PVS allows for operation either as a stand-alone encoder solution or in combination with an interpolator IC such as iC-TW29. This enables much higher resolutions, and provides high-end signal conditioning (error compensation for amplitude, offset, phase error of the sin/cos track) and offers extended monitoring functions, for example for Predictive Maintenance applications for axle bearings in the context of Industry 4.0.

Introducing iC-Haus
iC-Haus GmbH is a leading independent German manufacturer of standard iCs (ASSP) and customized ASiC semiconductor solutions. The company has been active in design, production, and sales of application-specific iCs for industrial, automotive, and medical technology for 37 years now and is represented worldwide.

The iC-Haus cell libraries in CMOS, bipolar, and BCD technologies are fully equipped to realize the design of sensor, laser/opto, and actuator ASiCs, among others. The iCs are assembled in standard plastic packages or using iC-Haus chip-on-board technology to manufacture complete microsystems, multichip modules, and sensors housed in optoBGA or optoQFN packages.