LC sound box frequency divider

Abstract

The invention discloses an LC sound box frequency divider. The LC sound box frequency divider includes one inductance coil L provided with at least one tap, at least one capacitor C, and at least two loudspeakers; one pole of each capacitor C is connected with one tap in the inductance coil L, and the other pole of the capacitor C is connected with one loudspeaker; and the output end of the inductance coil L is connected with another loudspeaker. The LC sound box frequency divider of the invention is composed of the inductance coil L provided with the taps, the capacitors and the loudspeakers with corresponding power; the signal input line of each loudspeaker passes through the same inductance coil L, namely, the inductance coil L is multiplexed for many times; in sound filtering, no matter how many frequency bands sound signals are divided into, input signals only pass through one inductance coil L, and the electric energy of the inductance coil L is almost fully utilized, and has no loss, the loss of power signals can be nearly avoided, and slight sound signal loss is just brought about, and sound distortion is low, and quality of reproduced sound is high.

Description

technical field [0001] The invention relates to the technical field of frequency dividers, in particular to an LC sound box frequency divider. Background technique [0002] Speaker dividers can divide the sound signal into several frequency bands. For example, a two-way frequency divider is composed of a high-pass filter and a low-pass filter, and a three-way frequency divider adds a band-pass filter. Of course, it can also be made into a four-way frequency divider or a five-way frequency divider. The crossover is the "brain" in the speaker, which is very important to the quality of the sound. Existing speaker frequency dividers include a circuit (high-frequency frequency division circuit) connected to a tweeter, a circuit (intermediate frequency frequency division circuit) connected to a midrange speaker, and a circuit (low frequency frequency division circuit) connected to a woofer. In the circuit connected to the tweeter: let the current flow through the capacitor first...

AI Technical Summary

Problems solved by technology

However, in this solution, the inductance L is connected to each frequency division circuit, and the inductance L consumes a part of the electric energy: in the high frequency frequency division circuit, the excess mid- and low-frequency power in the inductor L1 is directly lost; In the circuit, the excess high and low frequency power in the inductor L2 is directly lost; while in the low frequency frequency division circuit, the excess high and medium frequency power is directly lost

That is to say, the more inductance is added to the frequency divider, the more power will be lost, the greater the loss of power signal, the more serious the loss of sound signal, the sound will be distorted and the quality of reproduced sound will be worse.

In particular, the inductance L1 and capacitor C3 connected in parallel on the circuit not only waste power that should not be wasted, but also directly destroy its load impedance and resistance characteristics, making the sound even worse

Images