“Understanding the Influence of ESR and Ripple Current for Capacitor Selection” examines the critical factors in choosing capacitors for AC applications, emphasizing that capacitance and voltage alone are insufficient. It highlights the importance of considering Equivalent Series Resistance (ESR) and ripple current, which vary with frequency and temperature. This work discusses how different capacitor technologies—ceramic, aluminum electrolytic, film, and tantalum—handle ripple current and self-heating, impacting their performance and lifespan. Through examples of DC link and resonant capacitors, the paper illustrates the trade-offs between various technologies, concluding that the optimal choice depends on specific application requirements. The authors advocate for a comprehensive evaluation of capacitor characteristics to ensure reliability and efficiency in electronic circuits.
Understanding the influence of ESR and Ripple Current for the capacitor selection
by YAGEO Group
Authored by Alexander Nebel, Jekaterina Stael von Holstein
Ref - https://www.techonline.com/tech-papers/understanding-the-influence-of-esr-and-ripple-current-for-the-capacitor-selection/
White Paper
“Understanding the Influence of ESR and Ripple Current for Capacitor Selection” examines the critical factors in choosing capacitors for AC applications, emphasizing that capacitance and voltage alone are insufficient. It highlights the importance of considering Equivalent Series Resistance (ESR) and ripple current, which vary with frequency and temperature. This work discusses how different capacitor technologies—ceramic, aluminum electrolytic, film, and tantalum—handle ripple current and self-heating, impacting their performance and lifespan. Through examples of DC link and resonant capacitors, the paper illustrates the trade-offs between various technologies, concluding that the optimal choice depends on specific application requirements. The authors advocate for a comprehensive evaluation of capacitor characteristics to ensure reliability and efficiency in electronic circuits.