Passive Automotive Electronics for 48V Systems and V2X Written By: James Emerick Abstract: Two of the driving forces behind the quickly evolving automotive industry are fuel efficiency and safety. Fuel efficiency is primarily driven by a combination of regulatory requirements for reduced CO2 emissions and consumer demands for improved operational economy. While always paramount, safety has seen renewed activity due to the advancements of driver-assist and driverless technologies. The shift toward 48V subsystems and the integration of vehicle-to-everything (V2X) communication are two prime examples of significant advances in efficiency and safety, respectively. In both cases, new classes of electronic passives (capacitors, inductors, antennas, interconnect) are required to bring these technologies to mainstream products while meeting strict automotive regulatory standards.
Technical Articles / Whitepapers
LED Lighting Interconnects Solutions Written By: Alex Guan Abstract: Solid-state lighting (SSL) solutions based on the light-emitting diode (LED) and its organic relative (OLED) have become the standard for luminaires across a wide variety of application sectors. SSL performance with respect to luminous output, power efficiency, lifetime, and reliability is unmatched. Many of the challenges endured by early adopters, such as cooling, manufacturability, and form factor limitations, have largely been solved. By the year 2035, it is projected that 85% of all lighting installations will be solid-state (“2019 Lighting R&D Opportunities”).
Active Band Switching Solutions Written By: Alessandro Beretta Abstract: Today’s new and emerging wireless applications are increasingly requiring the support of multiple frequency bands. From laptops to cellular phones to wearables, devices are expected to connect to any cellular, Bluetooth™, GSM, RFID, or other networks. These expectations present challenges when it comes to antenna design, compared to a traditional design. The simplest solution — using discrete antennas for each frequency band required in the application — requires extra physical space. But this ultimately clashes with industry trends that prefer smaller and smaller solutions while still providing more bandwidth.
Five Advantages of AVX Poke-Home Connectors Written By: Raul Saucedo Abstract: The poke-home connector was originally introduced as a highly reliable solution for connecting a small number of discrete wires to a printed circuit board assembly. The wire is first stripped, and it is then inserted into the connector. Integral wire guides and an end stop assure proper positioning of the wire during insertion. Dual beam high force contacts (typically beryllium copper) provide extremely low electrical resistance and maximize wire retention. An example of a horizontal poke-home connector is shown in…
Leading-Edge AVX Technology in Film Capacitors Written By: Masato Nishikiori Abstract: With the advent of plastics in the middle of the 20th century, the film capacitor was introduced as a technological leap over traditional paper-based designs. Film capacitors use a thin plastic film as the dielectric that separates multiple metal electrodes. The electrodes are either deposited directly on the film (metallization) or are built from separate metal foils. The plastic metal sandwich is wound on a bobbin, and a terminal contact layer is deposited to connect all of the individual capacitor layers in parallel effectively.
AVX Jumper Pins: Solutions for Solid-State Lighting Board-to-Board Applications Written By: Raul Saucedo Abstract: It is now a foregone conclusion that solid-state lighting (SSL), specifically based on the light-emitting diode (LED) and it’s organic relative (OLED), will become the technology standard for luminaires across a wide variety of application sectors. Its performance with respect to luminous output, power efficiency, lifetime, and reliability is unmatched. Many of the challenges endured by early adopters, such as cooling, manufacturability, and form factor limitations, have largely been solved. By the year 2035, it is projected that 85% of all lighting installations will be solid-state (“2019 Lighting R&D Opportunities”).
Passive Components for GaN Based Devices Written By: Ron Demcko | Daniel West Abstract: The theoretical limits of Silicon-based device performance are fast approaching, and in some cases, already here. Therefore, IC (integrated circuit) design companies have turned their efforts into driving costs down while increasing the performance of wide band gap semiconductors such as GaN (Gallium Nitride). GaN based power and RF (Radio Frequency) devices are now available from multiple manufacturers at affordable prices due to those intensive efforts. Multiple sources have documented GaN based semiconductor performance advantages of faster speed, lower loss, and higher frequency-voltage-temperature operation. Those advantages are, in turn, enabling end systems that have enhanced performance on lower power consumption levels in smaller and lighter packages,
The History of Insulation Displacement Technology Written By: Hank Merkle Abstract: The need to physically connect pieces of metal together has been around for thousands of years. In the modern era of electronics, the physical connection requirement is compounded by the need for a low resistance electrical path. In both cases, the process of soldering has proven to be an excellent and time tested solution, with evidence dating back to 4,000 BC. Soldering two metal components together means that the joint is heated and a filler metal with a lower melting point than the constituent pieces is deposited to complete the connection.
The Pros and Cons of MLCC Downsizing Written By: Frank Hodgkinson | Maureen Strawhorne Abstract: As integrated circuits (ICs) continue to pack more functionality into smaller packages, the need for bulk off-chip capacitance remains. In resonant circuits, such as phase-lock-loops (PLLs) and switching regulators, precision class one ceramic capacitor may be required. Such capacitors must maintain a tight capacitance range over process, voltage, and temperature variation (PVT) for the host IC to meet its performance specifications. In contrast, class two ceramic capacitors are required for nearly every IC in the form of decoupling and bypass capacitance. They may also be found in amplifier circuits, simple filters, and linear regulators where their function is less dependent on tightly specified impedance requirements.
The Application of Capacitors in Power Supply Regulator Circuits Written By: Rick Liu Abstract: Advancements in electronic technology over the last decade have led to smarter consumer electronics. As devices become smarter, the components used to power them are shrinking, resulting in small, but incredibly powerful devices — ones small enough to fit inside a pocket or around a wrist. With these smaller, denser designs, it can be impossible to separate analog and digital domains in the layout, as best practices used to dictate years ago. Today, design engineers are compelled to use many capacitors in the power network to attenuate high-frequency digital noise. Circuits are designed to expect pure, clean power without noise that will impact analog circuits.