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Why does a real world capacitor behave like an inductor at frequencies above its self-resonant …
The self-resonant frequency occurs at the resonant frequency of the ideal cap and series inductor (which form a tank circuit with near zero impedance at resonance). Once you go above resonance frequency, the series inductor dominates the impedance of the component, and the capacitor impedance is so low as to be negligible.
Components—Part 3: The Performance of LC …
Components—Part 3: The Performance of LC Filters
AN1325: Choosing and Using Bypass Capacitors
A bypass capacitor eliminates voltage droops on the power supply by storing electric charge to be released when a voltage spike occurs. It also provides this service at a wide …
How to Discharge an AC Capacitor? Don''t Get Zapped!
The amount of time it takes for an AC capacitor to discharge can vary depending on the type, size, and quality of the used capacitor. Generally speaking, a typical AC capacitor will take anywhere from 10 seconds to …
Characteristic of Capacitors
–– 12 –– [Notes] 3. Noise Suppression by Low-pass Filters This is the PDF file of text No.TE04EA-1. No.TE04EA-1.pdf 98.3.20 Characteristic of Capacitors 50 40 30 20 10 0 1 5 10 50 100 500 1000 Ideal capacitor 0.001µF (1000pF) Frequency (MHz) Insertion loss ...
Tantalum capacitor benefits and recent advances: …
Tantalum capacitors offer designers of densely packed, high-performance electronic circuits a reliable high-capacitance solution with stable performance. A historical favorite among design engineers, …
Resonance and Tuning Methods
mechanical tuning capacitor. The induc- tance value of the coil is not changed in this arrangement. Rather, the capacitor is ad- justed to change the resonant frequency of …
Understanding LLC Operation (Part I): Power Switches and Resonant …
Learn more about LLC converters and how their resonant nature provides benefits such as high efficiency, soft switching, reduced board space, and improved EMC. Resonant Tank The resonant tank is made up of a resonant capacitor (C R) and two inductors: the resonant inductor (L R), in series with the capacitor and transformer, and the …
SRF & PRF for RF Capacitors — Johanson Technology
This frequency is called the Series Resonant Frequency (SRF). The magnitude of the transmission impedance the capacitor presents will be extremely low from the bottom frequency end determined by the capacitance value, right through the SRF until one …
MT-101: Decoupling Techniques
Low frequency noise requires larger electrolytic capacitors which act as charge reservoirs to transient currents. High frequency power supply noise is best reduced with low inductance
The Role of Resonant Capacitors in Power Electronics
Insights Into Precision Passive Devices Knowles Precision Devices is a premier global source for Capacitors, RF Filters, EMI Filters, Resonators, non-magnetic components and advanced dielectric materials. An umbrella for the bra nds of Compex, DLI, Johanson MFG, Novacap, Syfer and Voltronics, Kn owles Precision Devices serves a …
Understanding LLC Operation (Part I): Power Switches and Resonant …
Understanding LLC Operation (Part I): Power Switches and ...
AN1325: Choosing and Using Bypass Capacitors
Choosing and Using Bypass Capacitors AN1325Rev 1.00 Page 3 of 11 Oct 10, 2011 Equivalent Circuit Model Once the structure is understood, the next logical step is creating an equivalent circuit model to use in simulation. The equivalent circuit model is shown in
Parasitic Oscillation and Ringing of Power MOSFETs
parasitic capacitance and other factors. MOSFETs with a high g m go into parasitic oscillation when their loop gain is 1 or greater. 2.2.1. MOSFET feedback loop Oscillation does not occur without a feedback loop. The following paragraphs discuss the conditions
How To Remove Parasitic Capacitance in High-Speed Designs
How To Remove Parasitic Capacitance in High-Speed ...
How does the resonant capacitor work in an RFID antenna?
I am trying to design a custom antenna for an RFID circuit I am building. I want to make a ~20 cm circular antenna to read a tag that passes through. I still can''t have success. Reading this http:/... The capacitor combined with the coil (inductor) forms a LC circuit or resonator. or resonator.
Power Tips: Calculate an R-C snubber in seven steps
One simple solution to reduce this ringing is by damping or "snubbing" it with a series R-C circuit, typically placed directly across the rectifier or FET. The seven-step procedure …
Power Tips: Calculate an R-C snubber in seven steps
The seven-step procedure shown in Table 1 uses a common methodology that shifts the resonant frequency of the ringing to calculate the circuit''s parasitic capacitance (C o) and inductance (L). Once you know those, you can calculate the snubber capacitor ( C
How to Select High-Frequency Capacitors for RF Circuits
How to Select High-Frequency Capacitors for RF Circuits
Resonant Frequency Calculator | LC Calculator
Resonant Frequency Calculator | LC Calculator