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
This white paper focuses on isolated digital interfaces conforming to RS-485, which continues to be the industry’s workhorse standard for data transmission. The paper provides an overview of RS-485’s common-mode voltage range (CMVR) definition, and explains how isolating a transceiver’s signal and...
Published: Jul 17, 2018
While almost every power-supply engineer intimately knows and understands the lab setup for measuring efficiency, there are many important nuances that must be considered when measuring the efficiency of a device with ultralow quiescent current (IQ). For a device that consumes less than 1 µA, the circuit’s...
Published: Jul 23, 2018
Low-power electrical transients generated within a facility are the primary cause of failure to AC/DC power supplies. These transients reduce the life of power supplies and create unplanned downtime.
This document will explain why these transients cause failure and outline how placing high-power transient voltage...
Published: Jul 24, 2018
Vector Network Analyzers of Rohde&Schwarz family are able to measure magnitude and phase of complex S-parameters of a device under test (DUT) in the frequency domain. By means of the inverse Fourier transform the measurement results can be transformed to the time domain. Thus, the impulse or step response of the DUT...
Published: Sep 23, 2019
Standard industrial interfaces such as RS-485 and RS-232 are commonly used for unidirectional and bidirectional data transfer in a range of applications that encompass everything from medical monitoring to test and measurement equipment.
This paper presents the reasons for galvanic isolation in board designs that...
Published: Jul 23, 2018
The audio market for wireless Bluetooth headsets is growing rapidly. People have gotten used to wireless audio systems, and the mobile phone industry is pushing towards a world without audio connectors and cables. Most of the average users who think about Bluetooth audio picture clumsy over-ear headsets with very little...
Published: Nov 01, 2018
Allegro MicroSystems, LLC is a world leader in developing, manufacturing, and marketing high-performance integrated circuits (ICs), which incorporate high performance magnetic transducers.
This whitepaper provides a basic understanding of the giant magnetoresistance (GMR) effect and how Allegro uses this technology...
Published: Jul 26, 2018
Ever since the first watermills and windmills were used to generate electricity, energy harvesting has been an attractive source of energy with great potential. In recent years, energy harvesting technology has become more sophisticated and efficient, and energy storage technologies, such as supercapacitors and thin-film...
Published: Jul 23, 2018
This paper discusses the challenges and success factors for creating the world’s first integrated MEMS gyroscopes for the consumer electronics market. A disruptive MEMS processing platform called Nasiri-Fabrication is described which has enabled Motion Processing applications, creating the largest and fastest growing...
Published: Jul 19, 2018
The following white paper uses a typical off-the-shelf isolated DC-DC converter to demonstrate how an active filter will not only provide superior filtering, as compared to the passive approach, but will also provide a simple turnkey solution to meet challenging transient response requirements.
The performance...
Published: Jul 24, 2018
Multi-hop mesh protocols, such as Zigbee® , are getting a lot of press for their ability to link together low data-rate Machine-to-Machine (M2M) applications. Zigbee, in particular, is targeting itself as the standard bearer for wireless, low-power meshing protocols. Many of the features of a Zigbee solution touch...
Published: Jul 23, 2018
Learn how optically - isolated relays can improve the performance of data acquisition systems and industrial machines.
However, solid-state devices are not created equal when it comes to these performance advantages. Optically-isolated solid state relays, in particular, can outshine other solid-state devices...
Published: Jul 24, 2018
Type-C interfaces bring dramatic benefits to consumers. However, in order to realize this potential designers must implement Type-C's Power Delivery (PD) protocol, detect cable orientation and switch high speed signals, as needed and, if desired, provide support for Vendor Defined Messaging (VDM).
This whitepaper...
Published: Jul 23, 2018