RUTRONIKER 2023 – HIGHLIGHTS
Excerpts from some of the top articles from Rutronik’s 50th Anniversary edition of RUTRONIKER - its annual technical publication.
Centimeter-accurate positioning in real time
With RTK (Real-Time Kinematics), location accuracy can be improved to ~2 cm with no time delays. This ensures constant reproducibility of the position, which is essential for applications including: self-driving vehicles, agriculture, construction, surveying, geology, and robotics.
RTK advantages over conventional GPS systems.
Specific RFK product focus:
The Minew Technologies MS34SN3 high-sensitivity GNSS module has an integrated RTK positioning engine that supports simultaneous multiconstellation positioning and L1+L5. With GPS, BeiDou, Glonass, Galileo, QZSS and RTK technology, the MS34SN3 achieves positioning accuracy in the centimeter range. At the same time, the module is very energy efficient, boasting a power consumption of only 15 mA.
Motor controller with many diagnostic and protection functions
The growing importance of functional safety in electronic systems is placing increasing demands on the self-diagnostic capabilities of complex motor controller application standard specific products. The diagnostic and protection functions of the embedded motor controllers are mapped by software on the top application layer. Among other things, this application software evaluates voltages, currents, and temperatures measured by the A/D converter or other peripherals. Software-independent protection and diagnostic functions are implemented in hardware.
Preferable diagnostic and protection functions:
?Specific motor controller product focus:
The HVC 5x family from TDK-Micronas includes extensive diagnostic and protection mechanisms that enable its use in systems with safety-relevant functions. These ICs have three or four integrated half-bridges to which BLDC or stepper motors can be directly connected without any additional external components.
Additionally, the HVC 5x family offer several on-chip memory blocks and three temperature sensors for monitoring the junction temperature.
Intelligent charging flaps for electric vehicles
It’s estimated that e-cars are charged 21 times a month compared to combustion engine cars that are refueled only two to four times a month. The charging flap of electric vehicles is therefore an important aspect to enable convenient operation.
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When charging at dusk or in the dark, a light source directly at the charging port makes it much easier to insert the charging plug. Energy-efficient LEDs are recommended for this task, as they offer much greater design freedom. The color and shape of the LED display can also be used to show information about the charging process and the battery’s state of charge.
Contactless opening and closing of the charging flap can be another benefit to the users, whether they have their hands full or just don’t want to get dirty.
Specific LED driver and motor controller products:
The Elmos E521.39 RGBW LED driver features an integrated microcontroller and LIN transceiver, four PWM generators, and four current sources, as well as diagnostic capabilities.
The Elmos E523.63 is a fully integrated system-on-a-chip (SoC) controller. It enables high-precision motor control for drive currents up to 1 A. It is designed to drive a three-phase brushless motor, a two-phase stepper motor, or up to two conventional DC motors. For this purpose, it combines a 32-bit Arm Cortex-M23 microcontroller and an analog motor driver in a small TSSOP16-EP package.
Everything you need to know about fans
Different types of fans
?Determining fan selection criteria
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For more in-depth details, read the full publication here: