Emech & Enclosures

Vishay has introduced a series of control knobs for its potentiometers, encoders and rotary switches. “Whether the user wears gloves or operates with bare hands, the knob’s haptic structure and pleasant grip surface reliably apply the necessary torque to the potentiometer shaft across all application situations,” claimed the company. The series is called ‘ACCK’, and includes round (11 types), pointer ...

Pushing back against ever hotter computer-on-modules, Congatec is offering heat-pipe based heatsinking, using acetone as a working fluid to accommodate sub-0°C switch-ons – operation is over -40 to +85°C. “Acetone cooling will become an option for the conga-TC675 and conga-TC675r,” the company told Electronics Weekly. “Most likely, they can be ordered off-the-shelf by Q3 – the acetone coolers themselves are ...

Nanotec has introduced a series of frame-less brush-less dc motors – essentially a stator-plus-rotor kit intended to be installed directly into a physical structure that will provide support, alignment and bearings. “By eliminating the need for couplings or additional mounting components, these frame-less motors reduce material usage and assembly costs,” claimed the company. “The design also simplifies cable management and ...

Toshiba Electronics has introduced a 60V 1A single-contact photo-relay in a 2.6 x 7mm 4pad SO4 package. Called TLP3640A, it can switch 60Vdc or 60Vac peak, with a typical on-resistance of 0.14Ω and maximum off-state leakage of 1µA. 100ms pulses of up to 3A can be carried. Operation is over -40 to +110°C, and de-rating starts at 25°C, dropping linearly ...

Recom has created a range of four-channel DIN rail electronic fuses with control and protection features. “The e-fuses distribute a 24V supply to four separately current limited load channels, each with a capacity of either 5A or 10A, depending on the module chosen,” said the company. “To avoid high in-rush currents, each load channel is switched on in succession with ...

Maxon has launched a range of back-drivable electromechanical joints for humanoid, quadruped and other mobile autonomous robots. The larger HEJ 90 (pictured) is aimed at locomotion, and generates up to 140Nm of torque, customisable up to 180Nm. Maximum joint velocity is 13rad/s. Mechanically, it is 110mm in diameter, 90mm long and weighs 1.96kg. Operation is from 30 to 60V. HEJ ...

Power Integrations added high-temperature motor drive optimisation to its MotorXpert brushless dc motor software suite. “In this version 3.0 release, we have added a two-phase modulation scheme, which is ideal for applications that work in high temperature environments such as hot-water circulation pumps,” said company marketing manager Cristian Ionescu-Catrina. “Version 3.0 also features a five-fold improvement to our waveform visualisation tool ...

EPC is specifically aiming at designers of humanoid robots with its EPC91104 7A 48V brushless dc motor driver evaluation board, built around GaN power transistors. Measuring 72 x 75mm and operating across 14 to 80V with peaks up to 20A, it implements only the power stage, needing a separate signal generator board to work, as well as heatsinking. The company ...

EBE Sensors+Motion has revised its manual handwheel rotary encoder, designed for precise adjustment of machines. Inside the encoder, called HR100, the 100 detent ‘clicks’ are created by magnetic rather than mechanical means, and position sensing is via Hall magnetic detection rather than physical contacts. Output is the traditional A-B two-phase quadrature waveform, created by a circuit with new Hall sensors ...

Infineon has released a family of H-bridge driver ICs for small brushed dc motors in vehicles, that include hardware for ISO26262-level functional safety. Called the BTM90xx family, they are intended to work over 7 to 18V, but have some function at 4.5V, and can survive up to 40V. There are four parts: BTM9010EP ±3.4A continuous, PWM input BTM9011EP ±3.4A continuous, ...