coil - Selecting the right ferrite core for high currents - Electrical ...
2015年6月24日 · I need to design some \\$3.7 mH\\$ coils for two low-pass filters and a \\$5\\mu H\\$ coil for a boost converter. But am having some trouble finding suitable ferrite cores, since …
Small low frequency magnetic field measurement: soft iron or …
2020年12月13日 · The ferrite core is just a "concentrator" of flux and it can be any shape and give pretty much the same benefits. may I assume that the higher the inductance, the more …
inductor - Is ferrite core inductance similar to iron? - Electrical ...
2023年11月16日 · Theory seems to suggest that ferrite cores are the ticket to increase inductance. I ordered several of these ferrite cores, which are listed to have a 2300 initial …
rf - Why multiple coils on a ferrite rod antenna? - Electrical ...
2020年10月26日 · The smaller coil is a lower-impedance winding that is probably connected to the transmitter and/or receiver circuit. The larger coils are probably meant to be connected in …
frequency modulation - AM Receiver Antenna Coil - Electrical ...
2023年4月27日 · The ferrite rod wound with wire yields a small-volume antenna having the right inductance. This antenna coil inductance is tuned with a parallel capacitor so that the antenna …
Function of ferrite core in the induction cooker coil?
2019年7月14日 · There are flux concentrators used in "traditional induction heaters." Flux concentrators are commonly used in heat treat applications, and are used on the back side of …
modeling - Loopstick (ferrite rod) antenna circuit model - Electrical ...
2020年10月30日 · A ferrite rod antenna generates a voltage in series with the coil. After all, the signal is coming from free-space and gets concentrated magnetically by the ferrite to produce …
coil - How to compare a magnetic loop antenna to a conventional …
2020年7月31日 · Consider the standard ferrite rod coil in a regular AM receiver: - Picture from here. It uses a ferrite rod because it improves the signal amplitude received by concentrating …
rf - Simple AM radio - how to modify it so it can work without …
Filtering just the station you want to hear. The frequency selected depends upon the capacitor and the coil. The formula for the frequency is f= 1/(2piCL) where C is the capacitor's …
transformer - Why doesn't magnetic power transfer use …
2022年1月23日 · Closer to it, a ferrite "just" reduces the leakage inductance. dB/dt generates the voltage at the receiver. The normal component of B through any surface stays unchanged (div …