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RF Transformer Explained

By RF Design, Pasternack Posted On 12.8.2019

Source: RF Design article

RF Transformers are two, or more, port passive devices with a wide range of uses for many RF applications. One of the most common uses of an RF transformer is the Balun, which provides efficient coupling between unbalanced transmission circuits and balanced circuits. Other common uses are for impedance matching between circuits of different impedances. Other applications include DC isolation, injecting DC current, or enhancing the common mode rejection of a circuit. (more…)

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Filtering out common mode noise with monolithic EMI filters

By Design World, Johanson Dielectrics Posted On 12.8.2019

Source: Design World article

By Mike Santora

Many factors increase the amount of “noise” interference that can damage or disturb the functionality of electronic devices. Today’s automobiles are a prime example. In a single vehicle, you can find Wi-Fi, Bluetooth, satellite radio, GPS systems, and that’s just the beginning. To manage this noise interference, the industry typically uses shielding along with EMI filters to eliminate unwanted noise. But now some of the traditional solutions for eliminating EMI/RFI are no longer sufficient. (more…)

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Resistor Noise Explained

By EDN Posted On 9.8.2019

Source: EDN article

Hugo Coolens in its EDN article explains in depth resistor noise. (more…)

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Low-ESR tantalum capacitors make a difference in circuit designs

By Electronic Products, Vishay Posted On 30.7.2019

Source: Electronic Products article

Low-ESR tantalum capacitors can improve circuit power efficiency, reduce heat generation for the circuit, and increase low-term reliability.

By Charles Pothier, vice president of marketing, Tantalum Capacitor Division, Vishay Intertechnology (more…)

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An introduction to capacitor based Power Factor Correction circuits

By Capacitor Faks Posted On 29.7.2019

Source: Capacitor Faks blog

Some of the AC power consumed by inductive loads is used to maintain magnetic reversals due to phase shift between current and voltage. This energy can be considered as wasted energy since it is not used in performing useful work. Power factor correction circuits are used to minimize reactive power and enhance the efficiency with which inductive loads consume AC power. Capacitors are essential components in power factor compensation circuits, and this article will explore some design considerations when using these components for power factor correction. (more…)

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Be Careful with Input-Output Feedback in Filters

By InCompliance Posted On 1.7.2019

Source: InCompliance article

by Arturo Mediano.

When designing EMI filters, how and where the filter is installed is critical to obtain the desired insertion losses. Usually, the effect of a wrong location or installation is not considered in the design of the filter and surprises appear. (more…)

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Decoupling and Filtering Capacitors Guideline

By Kemet Engineering Center Posted On 20.6.2019

Source: Kemet Engineering Center blog

by Wilmer Companioni. Decoupling and filtering are two of the main capacitor functionality circuit type. The following article by Kemet explains the basic considerations and selection guide for choosing the right capacitors. (more…)

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How to choose a surface-mount inductor for a DC/DC converter

By Electronic Products, Signal Transformer Posted On 18.6.2019

Source: Electronic Products, Signal Transformer article

Understanding the basics of the switch-mode converter principle will help designers select the best inductor for their application. By Mitchell Rhine, director of engineering, Signal Transformer. (more…)

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What Do You Need to Know About Bypassing

By Electronic Design Posted On 7.6.2019

Source: Electronic Design article

by Lou Frenzel. The seemingly ubiquitous bypass capacitor is an important component in design, especially when dealing with high frequencies. But what’s the driving force behind its usage? (more…)

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3V CAPXX Supercapacitors Characteristics for Wearables, Sensors, Coin Cells and Energy Harvesters

By Microwave Product Digest, Cap XX Posted On 6.6.2019

Source: Microwave Product Digest article, Cap XX

by Pierre Mars, Vice President, Quality & Applications Engineering, CAP-XX (Australia) Pty Ltd

CAP-XX announced its 3V thin prismatic cells, suitable for slim form factor applications, that can be connected directly across a 3V battery. This has reduced cost and space and extends battery run time compared to placing a 2.7V regulator between the battery and a lower voltage conventional 2.7V supercapacitor. The article introduces the 3V supercapacitor’s characteristics and behaviour at the end applications. (more…)

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