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In recent years, smart home, also known as smart house, has appeared in people's vision. Generally speaking, it is a networked and intelligent home control system integrating automatic control system, computer network system and network communication technology. Smart home system is based on the residential platform and controls all appliances connected to the home network through mobile app.
Smart home includes eight subsystems; The purpose of these systems is to bring people a safe, convenient, comfortable, artistic, environment-friendly and energy-saving living environment. Smart home not only needs convenient and intelligent control program in software, but also needs to ensure the normal operation of smart home system in hardware.
In this case, various inductors must be used in the circuit to collect data. In addition, there are protection circuit, oscillation circuit, power supply circuit, power amplification circuit and filter circuit; These circuits are without exception, and inductors are one of the indispensable electronic components.
So, what is the role of plug-in power inductors in smart home scenarios?
Current blocking effect: the self induced electromotive force in the coil always opposes the current change in the coil. It can be mainly divided into high-frequency choke coil and low-frequency choke coil.
Tuning and frequency selection: LC tuning circuit can be formed by connecting inductance coil and capacitor in parallel. That is, if the natural oscillation frequency f0 of the circuit is equal to the frequency f of the non AC signal, the inductive reactance and capacitive reactance of the circuit are also equal, so the electromagnetic energy oscillates back and forth between the inductance and capacitance, which is the resonance phenomenon of the LC circuit. During resonance, because the inductive reactance and capacitive reactance of the circuit are equivalent and reverse, the inductive reactance of the total circuit current is the smallest and the current is the largest (referring to the AC signal of f=f0), so the LC resonant circuit has the function of selecting the frequency and can select the AC signal of a certain frequency f.
In recent years, smart home, also known as smart house, has appeared in people's vision. Generally speaking, it is a networked and intelligent home control system integrating automatic control system, computer network system and network communication technology. Smart home system is based on the residential platform and controls all appliances connected to the home network through mobile app.
Smart home includes eight subsystems; The purpose of these systems is to bring people a safe, convenient, comfortable, artistic, environment-friendly and energy-saving living environment. Smart home not only needs convenient and intelligent control program in software, but also needs to ensure the normal operation of smart home system in hardware.
In this case, various inductors must be used in the circuit to collect data. In addition, there are protection circuit, oscillation circuit, power supply circuit, power amplification circuit and filter circuit; These circuits are without exception, and inductors are one of the indispensable electronic components.
So, what is the role of plug-in power inductors in smart home scenarios?
Current blocking effect: the self induced electromotive force in the coil always opposes the current change in the coil. It can be mainly divided into high-frequency choke coil and low-frequency choke coil.
Tuning and frequency selection: LC tuning circuit can be formed by connecting inductance coil and capacitor in parallel. That is, if the natural oscillation frequency f0 of the circuit is equal to the frequency f of the non AC signal, the inductive reactance and capacitive reactance of the circuit are also equal, so the electromagnetic energy oscillates back and forth between the inductance and capacitance, which is the resonance phenomenon of the LC circuit. During resonance, because the inductive reactance and capacitive reactance of the circuit are equivalent and reverse, the inductive reactance of the total circuit current is the smallest and the current is the largest (referring to the AC signal of f=f0), so the LC resonant circuit has the function of selecting the frequency and can select the AC signal of a certain frequency f.
