Inductance manufacturer gives you a sense of the fundamentals of inductance
Q: what is inductance and what does inductance do?
A: The Inductor is a Inductor that converts electrical energy into magnetic energy and stores it.An inductor is similar in structure to a transformer but has only one winding.An inductor, in the state of no current passing, will attempt to prevent current from flowing through it when the circuit is closed;In a state where current is flowing, the circuit will attempt to maintain current when it is disconnected.
Inductors mainly play the roles of filtering, oscillation, delay and notch in the circuit, as well as screening signals, filtering noise, stabilizing current and suppressing electromagnetic interference.The most common role of inductance in the circuit is to form LC filter circuit together with capacitance, which has the function of "through DC, blocking AC".
Q: what is the unit of inductance, how to convert?
Answer: 1, inductance in the circuit symbol: L;
2. Inductance units: Heng (H), Ho Heng (mH), Micro Heng (H);
3. The conversion relation is as follows: 1H=10^3mH=10^6 H=10^9nH;
Q: What is the tolerance of inductance?
A: The inductance tolerance is usually expressed in letters, and the error value of 20% is expressed in M;So the error is 10%, so let's call it K;If the error is 5%, let's call it J;So the error is 1%, so let's call it F.For example, 100M, 10 H, error 20%.Calculation of inductance error the maximum allowable deviation of inductance in the circuit refers to the nominal inductance value and the allowable error value of the real inductance.
Q: What is the core of a SMT inductor usually?
A: Common SMT inductance cores include: manganese zinc ferrite, nickel zinc ferrite, magnetic powder cores, etc.
Q: What are the main categories of inductance?
Answer: According to the working frequency classification: divides into the high frequency inductance, the intermediate frequency inductance, the low frequency inductance
Classified by structure: fixed inductance, adjustable inductance
Classification by function: filter inductance, choke inductance, oscillation inductance, isolation inductance, etc
According to packaging form classification: SMT inductor, plug-in inductor
Above is the basic knowledge of inductance, hope can bring you certain help, we are a professional inductor manufacturer.
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Post time: Jan-06-2021