To ensure the stability of voltage regulators and switched mode power supplies, the control loop behaviour must be measured and characterized. A well compensating voltage controller enables stable output voltages and reduces the influence of load changes and supply voltage variations.
The quality of this control circuit...
Published: Sep 23, 2020
Upcoming technologies such as 5G for wireless communications and the increasing amount of integrated electronic systems in modern vehicles require new solutions for EMC testing. In addition, manufacturers are looking for time saving test routines and intuitive test software that enable fast precompliance and compliance...
Published: Sep 23, 2020
All electronic devices contain capacitive or inductive components that can cause a disproportionately high current while switching on the device.
From an FPGA to a drilling machine, virtually every component or device requires an inrush current that by far exceeds the normal operating current. To properly design the...
Published: Sep 23, 2020
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
This article examines how to synchronize multiple DC/DC buck regulators in a Master/Slave configuration using phase shift time delay. Phase shifting multiple converters prevents ON time overlapping and reduces RMS current, ripple and input capacitor requirements, which will improve system EMI and power efficiency. This...
Published: Jul 20, 2018
Recently there has been growing demand for improvements in image resolution and analytical capability of medical CT scanners. To improve image quality, control panel density is increased, thus generating more heat. In particular, the gantry, which houses key components responsible for producing images, requires active...
Published: Jul 18, 2018
The LED industry is growing rapidly and this naturally brings up an important need for reliable measurements of LEDs and solid state lighting (SSL) products.
The objective of this paper is to introduce appropriate calibration procedures, as well as practical operating guidelines for integrating spheres which are used...
Published: Jul 25, 2018
It is apparent that many older specifcations for government and military security contacts were based around the misconception that Balanced Magnetic Switches (BMS) or Triple balanced reed switches provide the highest possible security. While it is true that BMS / Triple balanced reed devices do provide “better”...
Published: Jul 19, 2018
Like its predecessor, the Peripheral Component Interconnect (PCI), PCI Express is becoming a ubiquitous system interface. Unlike PCI, PCI Express adopts a Serializer/Deserializer (SERDES) interface to provide users with the scalability required for future applications. As system bandwidths increase, more applications are...
Published: Jul 19, 2018
Motion processing is emerging as the only solution that can deliver a new user interface and experience that will make a specific mobile handset stand out.
There is a need for full, six degrees of freedom (6-DoF) motion processing that can precisely translate human motion for the various applications. ...
Published: Jul 19, 2018
Cooling fans consist of an aggregate of airfoils, i.e. blades positioned around a hub that is driven by an electric motor. Due to their airfoil nature, a pressure differential is required across the blades to create the required flow. Therefore, if this pressure differential is disturbed, fan will suffer performance degradation. ...
Published: Jul 23, 2018
Knock-offs of electronic components, such as connectors, can cause big problems for purchasers, particularly if the purchasers are inaccurately informed as to what they are buying.
We at LEMO provide this white paper to help our customers make more informed decisions and better shield themselves from civil and...
Published: Jul 16, 2018
High-voltage power management ICs, such as TI’s LM5000 series of integrated controllers and regulators, can simplify the design of high-voltage power management solutions
This paper presents various application scenarios where high-voltage capability up to 100V is required and explains how high-voltage power...
Published: Jul 23, 2018
This whitepaper will introduce the ECP5™ and LatticeECP3™ FPGAs as viable solutions to overcome embedded design co-processing and connectivity challenges, and highlight application examples at the edge in industrial, consumer, automotive and machine learning areas, where these FPGAs solve the above mentioned...
Published: Jul 17, 2018