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, […]
Waterproof USB Micro B and Type C receptacles feature IP67 ratings
CUI’s Interconnect Group announced the addition of several waterproof USB connectors, with Ingress Protection (IP) ratings of IP67, to its USB product family. Offering protection from moisture and environmental contaminants, the connectors are available in USB Micro B and Type C receptacle formats, while conforming to either the USB 2.0 or USB 3.1 Gen 2 […]
Digital and analog MEMS microphones carry sensitivity ratings from -44 to -26 dB
CUI’s Audio Group today announced the introduction of a comprehensive line of MEMS microphones ideal for a range of portable electronic devices. Boasting improved audio quality, performance, and reliability, CUI’s CMM series is housed in extremely compact, low profile footprints measuring as small as 2.75 x 1.85 x 0.95 mm. As reflow solder compatible components, […]
Choosing the right encoder – open-collector, push-pull or differential output?
Position encoders are widely used in motion control applications and many different types are available. To choose the optimum device for a given application, engineers must decide between absolute, incremental or commutation encoders, which present data in various formats such as quadrature, motor-pole or a serial protocol. The resolution required, as well as dimensions and […]
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