Passive Filter Design Concept of Buck Regulator

Posted by doEEEt Media Group
On December 21, 2020
0

Switched-mode power supplies (SMPS) have the advantage of high efficiency compared to traditional low-dropout (LDO) regulators. Due to its switching nature, an SMPS emits noise at its switching frequency and its harmonics. This article illustrates the procedure of designing filtering to achieve ultra-low output voltage noise with SMPS regulators.

EEE Components, PASSIVES

Wet Electrolyte Tantalum Capacitors basics

Posted by doEEEt Media Group
On December 19, 2020
0

In choosing between the solid or wet tantalum capacitor, the designer uses wet tantalum capacitors, where the lowest DC leakage is required. CLR79 and CLR81, will withstand reverse voltages up to 3 V

ACTIVES, PASSIVES

Protection for the Power Supply Explained

Posted by doEEEt Media Group
On December 18, 2020
0

Power protection is like insurance: You pay for it, yet hope you don’t need it. But it’s not a simple “purchase.” The first protection question is, “What am I seeking to protected, and against what event(s)?” The answer is two-fold: the supply and its components need protection from load faults, while the load needs protection against supply faults.

ACTIVES, EEE Components, SPECIFICATIONS / QPLs

Issue 212 of ESCC QUALIFIED PART LIST (QPL)

Posted by Emilio Cano García
On December 18, 2020
0

The changes in issue 212 of ESCC QUALIFIED PART LIST (QPL) are included in the DCR 1395 and detailed herein below

EEE Components, PASSIVES

New conductive polymer hybrid aluminun electrolitic capacitors

Posted by doEEEt Media Group
On December 18, 2020
0

Panasonic will launch mass production of large-capacitance conductive polymer hybrid aluminum electrolytic capacitors, which will enable a reduction in the number of capacitors necessary and compact size

EEE Components, PASSIVES

Rohm Releases Industry’s Highest Rated Power Shunt Resistors

Posted by doEEEt Media Group
On December 17, 2020
0

ROHM recently announced the availability of shunt resistors, GMR50 series, delivering industry-leading 4W rated power (at electrode temperature TK=90°C) in the compact 5.0mm×2.5mm (2010 type package) size. It is ideal for current detection in motors and power supply circuits used in automotive systems and industrial equipment.

EEE Components, PASSIVES

Electrification is Driving Capacitor Development

Posted by doEEEt Media Group
On December 17, 2020
0

Metallized Polypropylene Film Capacitors For example, consider two of the main purposes of capacitors in electric vehicles: to prevent ripple currents from reaching back to the power source, and to smooth out DC bus voltage variations. Capacitors are also vital in protecting semiconductors – originally thyristors, but now usually IGBTs.

EEE Components, PASSIVES

Vishay Introduces Automotive Grade AC and Pulse Polypropylene Film Capacitors

Posted by doEEEt Media Group
On December 17, 2020
0

Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new series of Automotive Grade AC and pulse metallized polypropylene film capacitors for hybrid and electric vehicles.

EEE Components, INSPECTION, ELECTRICAL & VERIFICATION, PASSIVES, TESTING

Multilayer Chip Capacitors Visual Standards

Posted by doEEEt Media Group
On December 17, 2020
0

Knowles Capacitors explains the ins and outs of chips capacitors – their properties, product classifications, test standards, and use cases. In the next article, manufacturers’ MLCC chip visual standards are explained.

EEE Components, PASSIVES

High Voltage MLCCs Arc-Over Prevention

Posted by Kemet Electronic Corporation
On December 17, 2020
0

In applications in which energy conservation is critical, such as wind or solar inverters or electric-vehicle (EV) powertrains, distributing power at high voltage can help to reduce I2R losses. The DC link supplying the inverter can be 3 V to 400 V in an EV application, for example, or even higher for wind or solar-power conditioning. However, high operating voltages like these bring additional safety challenges not only for end users but also for components — even those with a suitable voltage rating stamped on the case.

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