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Two in one: combined rotary encoder and inclinometer
for instance in draw-wire systems and cable drums. The series MH64-II-CAN/Mems/GS65 magnetic multi-turn encoder features a redundant Hall sensor for measuring a maximum of 64 turns as well as a redundant single-axis inclinometer that detects tilt angles from 0° to 360°. Without internal gears, the sensor can also be used as a single-turn encoder. The rotary encoder and the inclination sensor both feature 14-bit signal resolution. Main target applications are construction machinery, reach stackers, mobile work platforms, as well as ship and harbor cranes. A CAN bus interface supports CANopen and the CANopen safety protocol for signal output. The sensor is therefore also suitable for safety applications. The GS65 housing provides IP67 ingress protection. It can be wired up or connected via M12 plug.
S
FSG Fernsteuergeräte
info@fernsteuergeraete.de
www.fernsteuergeraete.de
ensor technology specialist FSG has developed a rotary encoder for simultaneous angle and tilt measurement,
innovation from Grayhill Inc streamlines Human Machine Interfaces (HMIs) used in medical electronics, audio/visual and specialist vehicle control applications. Instead of tweaking multiple knobs the new device enables users to fine- tune their equipment control while keeping their hands in a single position. The multiple configuration options provided by the new Touch Encoder are configured using an intuitive iPad
H
development kit app that provides access to tap, swipe, and rotation gestures and makes it easy to support custom layouts and multiple language options. Rugged, sealed and impact resistant, the new device will also be welcomed by engineers developing emerging control applications where intuitive control is paramount. According to Robert Davies, Marketing Manager with EAO UK, replacing multiple buttons saves on unit price and
tooling costs, while the simplified interface makes user training easier: "Grayhill's intuitive tablet development app enables the user to personalise multi-touch gestures, generate images, customise the display, and even trigger the logic on the Touch Encoder – all without the help of a software engineer," Davies said. For a first look at the stylish and robust new Touch Encoder with its vivid high-resolution screen, click here to
view the video. EAO
01444 236 000
www.eao.com/touch-encoder Ricoh R5640 / R5641 Secondary Protection ICs The R5641 in a small DFN2020-8C package is designed for battery packs with two to
four cells and has an option to add a thermal sensor to the circuit to monitor the temperature of the battery pack by using an external PTC resistor. Ricoh Electronic Devices Co., Ltd has over 20 years of experience in developing and
manufacturing protection ICs for Li-Ion batteries. We started with 1-Cell protection ICs mainly for mobile phone applications but our portfolio expanded significantly due to the vast popularity of Li-Ion Batteries. Our portfolio now consists of 1-Cell, 2-Cell, Multi-Cell, Secondary Protection and Analog Front End ICs. As for all our protection ICs we especially focus on specifications like low current consumption, high accuracy monitoring threshold settings, small package technology and enhanced safety circuits.
I
n recent years, the number of applications using high energy density Li-Ion batteries has increased significantly. There is a growing need to comply with functional safety
standards, secondary protection ICs are developed to provide an additional safety level for Li-Ion batteries in case the primary protection circuit fails. Li-Ion batteries are safe in general when used according to the specifications but can
become a potential hazard in case of an internal or mechanical failure. Overheating, emitting fumes or even worse can be the result, also the manufacturers reputation can become seriously harmed when a disaster strikes. The operation of the IC is fully independent from the primary protection and protects
for over-charge voltage only. Once triggered and after a delay time, an external N- channel MOSFET is turned on and cuts an internal fuse which prevents the battery pack from charging again and will become beyond repair. Targeted devices are power tools, laptop computers, medical devices and other
portable applications with a multi-cell Li-Ion / Li-Polymer battery pack which require additional safety measures for enhanced reliability. Significant detail for the R5640 / R5641 is that the current consumption of the IC is equal or lower than most other available solutions on the market and contributes reducing the self-discharge rate of the battery pack. Once the battery pack is discharged and the cell voltages drop below the shutdown detector threshold, the shutdown mode will be enabled causing all internal circuits to halt in order to decrease the self-discharge rate of the battery pack to a minimum. The R5640 in a MSOP-8 package is a suitable solution for battery packs with two to
five cells. As for larger multi-cell battery packs with six cells or more the R5640 has control inputs and outputs available for cascading multiple ICs. In this way it is possible to monitor battery packs with up to 10 or 15 cells for example.
CONNECTINGINDUSTRY.COM/ELECTRONICS ELECTRNICS | APRIL 2018 35
Ricoh Europe (Netherlands) B.V.
Hans.adams@
ricoh-europe.com
www.e-devices.ricoh.co.jp/en/
New Encoder Combines LCD Touch Screen within Rotary Switch
uman Machine Interface (HMI) specialist EAO has introduced an innovative Touch Encoder that integrates a touch-screen LCD display with a multi-function rotary switch and pushbuttons in a single product. The new
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