CUI’s Interconnect Group today announced the addition of terminal block connectors to its existing line of connector products. Featuring up to 24 pole counts, the terminal blocks come available in pluggable, screw type, and screwless configurations with 2.54, 3.50, 3.81, 5.00, 5.08, and 7.62 mm pitches. These terminal block models also offer horizontal, vertical, 45°, […]
An overview of fan bearing designs
by Ryan Smoot, CUI Fans are a crucial feature of many electronic systems, maintaining operation within a certain temperature range, while ensuring electronics are working at their optimum level across their operational lifetime. Key to a fan’s design is the consistent running of the bearing on which the rotor spins. The sleeve bearing and the […]
Understanding the difference between an incremental encoder’s PPR, CPR, and LPR
by Jason Kelly, CUI Incremental rotary encoders produce two square wave outputs as they rotate, from which the angular displacement and rotational speed can be calculated. These quadrature outputs let the host system determine the direction of rotation. To calculate speed and angular displacement, the encoder’s resolution – equivalent to the angular displacement represented by […]
Choosing the right MEMS microphone interface for your project
by Bruce Rose, CUI Inc. Micro-electro-mechanical systems (MEMS) microphones have been steadily increasing their market share, driven by the surge in popularity of voice-controlled electronics with applications like voice-enabled navigation devices and digital home assistants. But what are the different types of MEMS microphone electrical interfaces available and how do you apply them to your […]
Cable assemblies added to interconnect portfolio
CUI’s Interconnect Group announced the addition of USB cables to its existing cable assembly products. The USB cable assemblies come available with USB Type A, USB Type B, Micro B, Mini B, and USB Type C plugs and receptacles, along with dc power plugs, blunt cut, and stripped and tinned terminations. Joining CUI’s line of ac […]
What you need to know about buzzers – reviewing the basic types and technologies
Bruce Rose, Principal Applications Engineer, CUI Inc A buzzer can provide a cost-effective yet intuitive aspect to the user interface of a wide variety of products, such as a home appliance, security panel, door-entry system or computer peripheral. Usually the choice is between either a magnetic or piezoelectric type. It should be an easy decision, […]
Power operating limits: How to choose the right power supply
Not all power supplies react to over and under-voltages and currents in the same way. It pays to know the tradeoffs of different approaches to protection. Ron Stull | CUI Inc. Power supplies can experience operating conditions outside normal specified limits, such as input under- or over-voltage, or variations in load and ambient temperature. These […]
Digital caliper, Pt 2: Implementation and extensions
Use of electronics and capacitive-based position sensing have transformed the caliper, a fundamental and essential instrument of precision linear-dimension measurement. Part 1 of this FAQ looked briefly at the basic mechanical, Vernier, and dial-readout calipers, as well as the micrometer. All these mechanical-only embodiments of the caliper were made obsolete within a few years with […]
Low-power, encapsulated ac-dc power supplies include 3-W and 5-W models
CUI’s Power Group today announced the addition of 3 W and 5 W models to its line of low power, encapsulated ac-dc power supplies. Available in board mount, chassis mount, wire lead, and DIN rail configurations, the single output PSK‑S3 and PSK‑S5B series are housed in compact packages measuring as small as 1.46 x 0.97 […]
A comparison of MEMS and electret condenser microphones
By Bruce Rose, Principal Applications Engineer, CUI Inc Many of today’s smart devices such as home digital assistants and IoT sensors are required to “hear” their environment. There is a growing demand for microphones that are not only highly miniaturized, but also robust, easy to design-in, and resistant to nearby acoustic or electrical noise. Fortunately, […]
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