KYOCERA AVX Card Edge Connectors For Automotive Applications Written By: Ashok Dhulgande | John McCarry Abstract: This whitepaper discusses key design considerations for electrical spring contacts and board connections and provides an overview of KYOCERA AVX’s card edge connectors for automotive applications.
Technical Articles / Whitepapers
Replacing Aluminum Electrolytic Capacitors with Tantalum or Ceramic Capacitors Written By: Teddy Won Abstract: Like all capacitors, electrolytics (e-caps) are based on the principle of storing energy in an electric field using a voltage applied across a dielectric. This paper discusses the basic structure and characteristics of electrolytics and shows alternates for circuit use.
Using SuperCapacitors in Electric Vehicles Written By: Adrian Thomas Abstract: The improved performance and practicality of electric vehicles (EVs) have merited them a permanent foothold in the overall automotive market. When combined with geo-political and environmental initiatives, it is clear that the demand for EVs will continue to increase long into the future.
Low ESR Tantalum Capacitors in Circuit Design Written By: Colin Li Abstract: Tantalum is a relatively scarce transition metal with several unique properties that make it a technology-critical element. It is highly corrosion-resistant and chemically inert. It is non-ferrous and non-magnetic, has a high melting point and density, and is extremely stiff. Most importantly, Tantalum readily forms a protective and electrically insulating oxide layer. This ability makes it an ideal candidate as the base building block of electrolytic capacitors.
Tantalum and SuperCapacitors Enable Maintenance Free Microcontrollers Written By: Ron Demcko | Daniel West | Ashley Stanziola Abstract: Ultra-low-power microcontroller families now exist with such low power requirements that they can be powered by energy harvesting rather than battery-operated or conventional mains. These powerful MCUs enable maintenance-free control systems in applications ranging from structure/soil/water/air monitoring applications to industrial point controllers (such as smart faucets) to wearable electronics, location tracking, and even BLE beacons.
High Voltage Ceramic Capacitors for Electric Vehicles Written By: Jeff Lee Abstract: Electric vehicles (EVs) have accelerated the demand for high-performance, high-reliability capacitor technologies. The wide array of voltage, power, and size requirements of the various electrical subsystems in modern EVs necessitates careful capacitor selection by designers. As shown in the blue segments of figure 1, these subsystems include AC-DC conversion, DCDC conversion, power management, and battery monitoring, to name a few.
Energy Storage Capacitor Technology Comparison and Selection Written By: Daniel West| Ussama Margieh Abstract: Tantalum, MLCC, and super capacitor technologies are ideal for many energy storage applications because of their high capacitance capability. These capacitors have drastically different electrical and environmental responses that are sometimes not explicit on datasheets or requires additional knowledge of the properties of materials used, to select the best solution for a given design.
The Case for Ceramic Capacitors in Electric Vehicle DC-DC Converters Written By: John Lee | Simon Cen Abstract: The emergence and future ubiquity of electric vehicles have created one of the most demanding application spaces for capacitors across a wide variety of use cases. From AC charging circuits to high-speed analog sensors, electric vehicles span the gamut of design constraints while also requiring the highest reliability standards in the worst possible environments.
AVX Varistors for Automotive Ethernet Written By: Akihiro Kado | Michael Kirk Abstract: The ubiquity of high-performance sensor systems in modern automobiles (particularly electric and self-driving vehicles) has created immense pressure to develop automotive local area networking (LAN) solutions that offer high bandwidth, low latency, and low cost. Traditional wiring harnesses have become too heavy and complex to support these data and power needs.
Criteria for Selecting Connectors for LED Lighting/Industrial Applications Written By: Jeffery Wang | John Lee Abstract: Connectors used in industrial and solid-state lighting applications pose uniquely challenging design constraints on power density and form-factor while simultaneously demanding the highest reliability under harsh environmental conditions. As a designer in these spaces, one cannot simply prioritize piece cost in the connector selection process. The true value of a connector is much more nuanced and must include the amortized costs of manufacturability, reliability, and safety. Eliminating hand soldering, ease of use, and good yield are not free. Avoiding field failures and product recalls are not free. Regulatory compliance is not free. To best address these hidden costs, designers should choose connectors from suppliers