One key factor: Determining the nuances of how capacitors handle expected ripple currents. Sam G. Parler, Jr., P.E. Cornell Dubilier Examine a dc link capacitor’s ac ripple current and you’ll realize it arises from two main contributors: the incoming current from the energy source and the current drawn by the inverter. Of course, capacitors cannot […]
cornelldubilierelectronics
Hybrid lithium-ion supercaps deliver up to 220 F at 3.8 V
Cornell Dubilier Electronics introduces two new series of Hybrid LIC Supercapacitors in response to the growing need for ultra-high capacitance values at higher operating voltages. The new VMF and VPF Series operate at 3.8 WVDC with capacitance values up to 220 Farads. The higher voltage results in increased energy density. With nearly eight times the energy density and a […]
And the LEAP Gold for Power Electronics goes to…Cornell Dubilier
The winners of the 2020 LEAP Awards (Leadership in Engineering Achievement Program) were announced last week in a digital ceremony, with products across 12 categories, including embedded computing, power electronics, and test and measurement. Critical to LEAP’s success is the involvement of the engineering community. No one at WTWH Media selected the winners. Instead, our […]
Supercapacitors operate at 3 and 6 V
A new series of higher-voltage and high-energy-density supercapacitors, called DSF Supercapacitors, offer a notable jump in voltage rating over typical supercapacitors to 3.0 WVdc for a single component and 6.0 WVdc for a dual-pack device. This higher voltage spec results in greater energy densities, which in turn saves space and may reduce the number of […]
High-energy-storage, pulse-discharge capacitors handle repetitive high-energy/high-voltage charge/discharge apps
A major product expansion of standard and custom high energy storage, pulse-discharge capacitors is designed for handling applications requiring repetitive high energy and high voltage charge/discharge cycles. The capacitor technology is based on a film-dielectric with self-healing metalized or high-current discrete-foil electrodes, depending upon application requirements. There are both dry and oil-impregnated types, offered with […]
Energy dense, low-profile caps get 5,000-Hour ratings
Cornell Dubilier Electronics, Inc. (CDE) has made significant design tweaks to their THA and THAS Series Thinpack capacitors. The product updates raise the rated life to 5,000 hours, a 66% increase over the first-generation devices. The key strength of the series is still high-energy-density. The 85 °C THA Series Thinpack capacitors are only 8.2mm thick, and […]
Capacitors designed for quick response and professional use defibrillators
Cornell Dubilier Electronics, Inc. announces the availability of its Q Series film capacitors for medical defibrillator applications. Designed specifically for today’s quick response and professional use defibrillators, the Q Series meets the reliability demands of Class III medical devices. Used extensively in automated external defibrillators (AEDs), the series offers designers the highest in-class energy density […]
Bringing science to the selection of mica capacitors
An RF modeler makes it easy to predict in-circuit S-parameters for mica capacitors used at microwave frequencies. Sam G. Parler, Jr., P.E. | Cornell Dubilier The choice of capacitor can particularly impact the performance of circuits handling RF and microwave frequencies. Specifying passive components operating in this region can seem more like art than science. […]
Stacked polyester capacitors meet 85°C/85 percent RH requirements
Cornell Dubilier announces availability of its Type RA multilayered film capacitors for 125 °C operation. Type RA capacitors are constructed using stacked metallized polyester protected with an impregnated sealant, which eliminates the need for an external case. This package style offers the highest energy density technology available for switching power supplies, DC to DC converters […]
Capacitors in renewable energy
It pays to know the distinguishing features of electrolytic, film, and super capacitors when planning applications where energy efficiency is important. MORRIE GOLDMAN, ILLINOIS CAPACITOR INC. RENEWABLE ENERGY SYSTEMS all have a common need for high-efficiency power circuits. Whether the original source of energy is light, heat, or mechanical motion, ancillary circuitry will probably either […]
