This white paper presents a reference design of an IoT sensor system optimized for wearable applications. It describes the challenges that may arise during the feasibility study and design phases of a wearable device and gives practical advice for hardware designers.
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Published: Jul 20, 2018
The explosive growth in Internet-connected devices, or the Internet of Things (IoT), is driven by the convergence of people, device and data across the web. Future growth will be strongly influenced by wearable technology as products transition from the laptop to the pocket to the body.
Activity trackers are leading...
Published: Jul 20, 2018
Modern power distribution systems often contain multiple power sources integrated within one system. A simple variant may be the common double-ended substation, which can be further complicated by additional emergency or alternate sources. This presents significant complexity to the designer attempting to design a protection...
Published: Jul 24, 2018
The LGA80D from Artesyn Embedded Technologies is the first DC-DC converter module of its kind on the market. This innovative non-isolated unit offers two independent and configurable 40 amp, 100 watt outputs, which can also be combined to a single configurable 80 amp, 200 watt output. With a footprint of 1 x 0.5 inches...
Published: Jul 19, 2018
Optical image stabilization (OIS) addresses the quality of images, and is an idea that has been around for at least 30 years. It has only recently made its way into the low-cost consumer camera market, and will soon be migrating to the higher end camera phones. This paper provides an overview of common design practices...
Published: Jul 19, 2018
Safety, availability, and cost considerations can make performing thorough tests of embedded control devices
using the complete system impractical.
Hardware-in-the-loop (HIL) simulation is a real-time test technique used to test these devices more efficiently.
During HIL test, the physical system that interfaces...
Published: May 01, 2019
Feed-forward headsets typically are more easily developed because the design engineer usually does not have to deal with stability issues. A major drawback of this topology, however, is wind noise, since the ANC microphones are directly exposed to the ambient. An alternative that overcomes this drawback is the use of a...
Published: Nov 01, 2018
This paper discusses the use of inertial sensors in a few handheld applications, provides a brief technology overview of accelerometers and gyroscopes, and presents the advantages of using InvenSense’s integrated dual-axis gyroscope as a standalone solution, or for supplementing multiaxis accelerometers for a more...
Published: Jul 19, 2018
Over the years, a number of methods have been proposed to realize fractional-N frequency synthesis that are based on the basic concepts of traditional integer-N synthesis [1,5]. Among these methods, three techniques are best known in the industry: fractional divider-based, current injection-based, and ∆Σ modulator-based...
Published: Jul 20, 2018
This White Paper describes how the new VIA PFM, a power component that performs the front-end AC-DC conversion required in many systems, allows the application of Vicor’s Power Component Design Methodology from AC to the Point of Load (PoL). The performance of the component is described, highlighting how the VIA...
Published: Jul 20, 2018
Power converter and inverter designs for higher power levels are usually based on hard switching half bridge configurations. In such setups, users must pay particular attention to proper switching operations to prevent shoot-through events.
Setting up complex real-time trigger conditions using the R&S®RTE...
Published: Oct 14, 2020
Modern vehicles can contain over 100 ECUs controlling everything from the drivetrain to the ADAS systems. Each ECU needs to be tested individually as well as in conjunction with other components.
This white paper discusses the five main tester design challenges and five common approaches to ECU production test to...
Published: Nov 04, 2019
This paper processes and studies the effects of a dual - stage compensation technique for achieving greater than 100 KHz cross over frequency of a single pole system converting from 48V to 1.2V .
By placing a separate non- inventing gain stage after the erorr amplifier, the necessary gain - bandwidth of the op amp...
Published: Jul 25, 2018
Temperature measurement, current monitoring, power supply sequencing, fan control and fault logging are typical board control functions used in complex circuit designs. System designers are faced with continual pressure to meet their development schedules, and need to implement control functions with minimal effort and...
Published: Jul 19, 2018