by Akshay Mehta and Yang Zhang, systems and applications engineers, Texas Instruments DC/DC converters are often used in distributed power-supply architectures for industrial applications. Many architectures use two types of output capacitors: One has higher capacitance and higher equivalent series resistance (ESR), such as aluminum electrolytic, while the other has much lower ESR and relatively […]
capacitors
Ceramic or electrolytic output capacitors in DC/DC converters – Why not both?
By Michael Score, Texas Instruments Switching power supplies are used in almost every end-equipment that needs a long battery life, low heat generation, or to meet ENERGY STAR® guidelines. When designing a switching power supply, it is difficult to decide which output capacitor type to use. Electrolytic capacitors have high equivalent series resistance (ESR), making […]
Medical grade thin film chip capacitors for RF signal and power applications
AVX Corporation has released a new series of thin film chip capacitors specifically designed to meet the demanding performance specifications for implantable medical devices. Delivering extremely tight capacitive tolerances, exceptionally repeatable performance, and remarkably low ESR and high Q at high frequencies — including VHF, UHF, and RF bands — AVX’s new Accu-P MP Series capacitors […]
Metalized Polypropylene Film Capacitors for Power Applications
The MPP Series film capacitors from Illinois Capacitor are available in a range of capacitance values from 4.7 to 35μF with voltage ratings of 500 to 1,500WVDC. Packaged in a flame-retardant hard-plastic case, each is well suited for high-reliability power conversion and control applications. Tab-style terminals are tinned copper with positioning points for on-board stability and performance. […]
