Simon Mao

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Looking Closer at Resonant Capacitors in Electric Vehicles

Posted by Simon Mao on Apr 13, 2019 1:10:28 PM

One of the primary goals in electric vehicles (EVs) is to increase the efficiency of its power conversion devices. The more efficiently power is converted, the further distance the EV can travel on one charge. For example, by reducing losses in a DC-to-DC (or DC/DC) converter, the converter (and overall vehicle) benefits from improved energy efficiency, a more streamlined design, and diminished heating from components.

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Topics: Capacitor

Looking Closer at Smoothing Capacitors in Electric Vehicles

Posted by Simon Mao on Apr 10, 2019 9:13:00 AM

In power electronics, rectification is the conversion of alternating current (AC) to direct current (DC). After the AC signal enters a rectifier circuit consisting of power diodes, the resulting raw rectified waveform yields a series of half sine waves with significant ripple. In order to minimize the pulsating DC voltage, a smoothing capacitor is placed in parallel with the load across the rectifier output. As the rectifier voltage rises, the capacitor charges and stores energy like a reservoir. Then when the rectifier voltage falls, the capacitor discharges, greatly reducing the ripple voltage.

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Topics: Capacitor

Capacitor Fundamentals: Part 3 – Factors Affecting Capacitance

Posted by Simon Mao on Feb 20, 2019 11:57:00 AM

Welcome to the Capacitor Fundamentals Series, where we teach you about the ins and outs of chips capacitors – their properties, product classifications, test standards, and use cases – in order to help you make informed decisions about the right capacitors for your specific applications. After describing common applications for capacitors in our previous article, let’s consider the factors and limitations that affect capacitance.

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Topics: Capacitor

Capacitor Fundamentals: Part 2 – How are Capacitors Used?

Posted by Simon Mao on Feb 13, 2019 11:56:00 AM

Welcome to the Capacitor Fundamentals Series, where we teach you about the ins and outs of chips capacitors – their properties, product classifications, test standards, and common use cases – in order to help you make informed decisions about the right capacitors for your specific applications. After discussing capacitance and how capacitors work in our previous article, let’s talk about how capacitors are most frequently used in electronic circuits.

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Topics: Capacitor

Capacitor Fundamentals: Part 1 – What is a Capacitor?

Posted by Simon Mao on Feb 6, 2019 11:55:00 AM

Welcome to the Capacitor Fundamentals Series, where we teach you about the ins and outs of chips capacitors – their nature and properties, dielectric behavior, product classifications, test and quality standards, and common use cases – in order to help you make informed decisions about the right capacitors for your specific applications. Part 1 discusses the key principles of capacitance and how a basic capacitor works.

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Topics: Capacitor

Challenges and Solutions to Global Multi-Layer Ceramic Capacitor Shortage

Posted by Simon Mao on Jan 30, 2019 11:38:00 AM

Multi-layer ceramic capacitors (MLCC) are a highly efficient, robust, and mature product that are enabling rapid innovation across a myriad of industries and expanding numbers of applications. However, with global demand for these critical components at an all-time high, at the moment there is a global shortage in their supply – especially in the traditional, non-specialized geometries. As MLCC demand is fueled by significant product development in the IoT, consumer electronics, and electric vehicles (EV), new advancements in these industries have become limited to the capacitor’s availability during the shortage, with lead times reaching several months to a year in some cases.

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Topics: Multi Layer Ceramic Capacitor

Key Considerations for Selecting Multilayer Ceramic Capacitors for Electric Vehicles

Posted by Simon Mao on Jan 16, 2019 8:05:00 AM

The worldwide electric vehicle (EV) market is exploding in demand and mainstream adoption as governments push for fuel economy improvements and automotive companies look for new market opportunities. According to Forbes, “by 2020, EVs are likely to cost the same as conventional fuel powered equivalents.” Major manufacturers – like General Motors, Toyota, and BMW – plan to release “a mouthwatering potential of 400 models and estimated global sales of 25 million by 2025.” For EV design engineers and purchasing agents, this drive towards increased electrification results in the challenge of finding cutting-edge components that can handle increasing temperatures, voltage, and power without sacrificing reliability, availability, and footprint.

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Topics: Multi Layer Ceramic Capacitor

Multi-Layer Ceramic Capacitor Market Trends

Posted by Simon Mao on Jan 9, 2019 8:00:00 AM

MLCC Market Overview

Multi-layer ceramic capacitors (MLCC) are the workhorse capacitors of the electronics industry. Global demand is driven by innovation from IoT growth, smart TVs, and the automotive industry, coupled with organic demand from consumer electronics (e.g. smartphones) and rising GDP per capita. To meet the market needs, MLCC manufacturers are weighing strategies to adapt to this exponential growth: either expand their business to improve the right-to-win equation at the commodity level, or continue to innovate, maximizing expertise and product solutions for the niche best suited to their strengths.

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Topics: Multi Layer Ceramic Capacitor

Insights Into Precision Passive Devices

Knowles Precision Devices is a premier global source for Capacitors, RF Filters, EMI Filters, Resonators, non-magnetic components and advanced dielectric materials. An umbrella for the brands of Compex, DLI, Johanson MFG, Novacap, Syfer and Voltronics, Knowles Precision Devices serves a variety of markets including military, aerospace/avionics, medical equipment, implantable devices, EMI and connector filtering, oil exploration, instrumentation, industrial electronics, automotive, telecoms and data networks.

This Blog will provide insights into:

  • Filters for 5G and mmWave
  • Capacitors for High Voltage
  • Capacitors for High Reliability

and much more. Subscribe below to stay informed.

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