Physicists Linking Magnetism and Electronic-band Topology

Posted by doEEEt Media Group
On May 27, 2022
0

Dirac matter is an intriguing class of materials with rather peculiar properties: electrons in these materials behave as if they had no mass. The most prominent Dirac material is graphene, but further members have been discovered during the past 15 years or so. Each one of them serves as a rich playground for exploring ‘exotic’ electronic behaviours, some of which hold the promise to enable novel components for electronics.

INSPECTION, ELECTRICAL & VERIFICATION

X-Ray Inspection applied to Screening Test

Posted by doEEEt Media Group
On April 26, 2022
0

Screening procedures assist in achieving quality and reliability levels commensurate with the intended application. The screening test does not increase the reliability of the components but removes those showing weakness or defects.

EEE Components, PASSIVES

Inductor current measurement shown in blue and behavior of a saturated inductor added in purple.

Posted by doEEEt Media Group
On June 19, 2021
0

Most switching regulator topologies use the inductor in such a way that the voltage on one side is switched between two extreme values but remains relatively stable on the other side. With the buck converter

INSPECTION, ELECTRICAL & VERIFICATION, TESTING

Quality Issues in the procurement of Operational Amplifiers

Posted by Antonio Rodríguez Arenas
On April 20, 2021
0

The Quality Assurance in EEE parts is a major aspect to take care in the procurement for EEE parts. One family of EEE parts widely used are the Operational Amplifiers which are in much different equipment’s of satellites electronics

ACTIVES, EEE Components

Typical Parameters in the Electrical Test of Operational Amplifiers

Posted by Sonia Vargas
On December 28, 2020
0

In order to evaluate the effects of certain stress sources related to space applications, a set of electrical parameters are measured during the process. Here are presented the typically used ones for operational amplifiers.

ALTER Innovation, EEE Components, Quantum QKD space

Fast optical source for quantum key distribution based on semiconductor optical amplifiers

Posted by doEEEt Media Group
On December 13, 2020
0

The lab through a free-space quantum key distribution experiment which makes use of the decoy-state protocol. A lower bound secure key rate of the order of 1.82 Mbps and a quantum bit error ratio as low as 1.14×10−2 and 93 bps for an equivalent attenuation of 35 dB were achieved.

ACTIVES, EEE Components

SEL protection for Space Applications

Posted by Sonia Vargas
On June 14, 2020
4

There are several strategies in order to protect circuits from Single Event Latch-Up. Implementing such protection with Current Limiters is a versatile and programmable option. However, this part types must be evaluated under certain stress sources related to space applications, where a set of electrical parameters are measured during the process. Here are presented the typically used ones.

ACTIVES, EEE Components

Analog to digital converters: The resolution dilemma

Posted by José Francisco Largaespada
On April 19, 2020
0

High resolution always pays the penalty of lower sampling rates, which can also derive in a poor representation of the analog signal

ALTER Innovation, ENDURANCE, ENVIRONMENTAL & RADIATION, TESTING

Experimental Study of Displacement Damage Test for Space Application

Posted by doEEEt Media Group
On February 17, 2020
0

The different DD level may be obtained by different particles. Proton is preferred. The energy of proton should be selected based on the proton energy spectrum inside of the spacecraft. Neutron may give underestimate test results. TID and DDD should be tested on the same group samples.

ABC of CLR, EEE Components, PASSIVES

Concepts and Measurements

Posted by doEEEt Media Group
On January 3, 2020
0

The product CR x VR is called the CV product and is a measure of the charge quantity. CR is expressed in µF and VR in volt. The product has the quantity µAs or µC (microCoulomb).