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JPS56132892

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DESCRIPTION JPS56132892
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of an embodiment of the
present invention, and FIG. 2 is a circuit diagram of another embodiment.?
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a split network te
+ i improvement of a multi-repetitive beaker system using a ceramic ceramic type loudspeaker
powered by a ceramic. In recent years, the use of ceramic-type loudspeakers is simpler because
they have a pole as compared with the conventional gIjJ configuration or the conventional
wedge-type configuration, so they are widely used as single female speakers. -3 / ? 2 One
thousand, the 1000 'turtle ceramic type speaker is different from the electrodynamic speaker in
impedance or not (2 ohms, 8 ohms, 1 ohm, about 200 ohms), 2 way or more When used as a
speaker unit as a 3-way or the like mull-way speaker system, it has a drawback that it is
necessary to input a single digit divided by the split net soak via the matching transformer. This
study is to measure impedance mannonance without using a special 7) matching transformer by
devising a choke coil that constitutes a split network of multi-way speakers, as shown in FIG. 1
and FIG. The embodiment shown in FIG. 2 will be described in detail in the history. Fig. 1i: The
present invention is applied to the speaker 2 for substitute, the speaker 3 for exclusive use for
middle and back, and the 2 division network circuit of l2dBloct, ? a, lb are input terminals, Ll, C1
are eyes There are three choke coils and condensers 11 connected between the input terminals
of the IJ, and the low-line speakers 2 are connected to both ends of the condenser 01 to form a
low-pass filter. L2 is a choke coil, and the high-sounding Taden ceramic type speaker 4 is
connected to both ends thereof. Between the intermediate tap TP of the choke coil L2 and one
winding end, the middle sound speaker 3 or the input terminal via the intermediate tack and the
capacitor C2 or the one winding end and the other input terminal lb are respectively connected
ing. That is, a bypass filter is formed by a C2 gate connected in series between the input
terminals 1 ? ? hlb, a tap IP of the choke coil L2, and a coil between one end. Next, each
constant at the time of selecting as cut-off PilMet1000 "z of a low-pass filter and a bypass filter
09-05-2019
1
as a 14 Example is demonstrated. Assuming that the inductance of the tap 1P of the choke coil 2
and the one-terminal partial coil is L2a, C + = C2 = -4 ? ?4?fcR. 4C1-C2 = 14 ?FR. L + = L2a =
4 ?, no'j'lT, 2?fcL + = L2a = 18 mH.
However, the coil L2a having an impedance of 1 (8 ?) and an impedance of 8 mH (1: canotoff
same wave number (Hz) kO varnish beaker has a width of 22.5 m (lO 1 on a bobbin with a
diameter of 241 jl) approximately 270 identical conductors. It can be obtained by winding. ?
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии иии As apparent from the above,
about 1900 turns t nyoke core 4 L 2 both ends l ? impedance 200 ohm W degree Lf N ceramic
type speaker 4, 8 5 turns 270 middle taps ? P speaker for middle back 3 By connecting the
choke coil L2, the choke coil L2 acts as an inductance element of the bypass filter and as a
matching transformer element of the piezoelectric ceramic speaker 4. In the above embodiment,
the signal component manually operated by the piezoelectric ceramic type speaker is slightly
wider than the band of the signal manually operated by the middle and high use speaker, or the
same wave number blocking characteristic of the low frequency is extremely steep. So there is no
danger of mutual interference with the middle speaker. In FIG. 3, the choke coil constituting the
low pass filter is also used as a matching transformer, and the same effect as the abovementioned embodiment can be obtained. As described above, this 11 is at least one piezoelectric
Sebu Minoku speaker! In a multi-way speaker system using a lll?J electric speaker ?, an
intermediate tag is formed on at least 1 ? ? :) of the choke coil that constitutes the split filter,
and an electrodynamic speaker is wound on the intermediate tap of the eye iJ. This is a% &)
characterized by connecting an electric 6 ceramic type speaker, and it can be affected by both
the choke coil of the eye j, the division network circuit q) both the inductance and the matching
transformer Q) l) Therefore, the piezoelectric ceramic speaker can be operated at the longest
point of efficiency without using a special piezoelectric matching transformer. In addition, the
sound pressure of the piezoelectric ceramic type speaker is totally controlled by changing the
number of turns of one self-described choke coil, and the balance of the other a electric type
speaker and vinegar) king is collected. "I can do that.
09-05-2019
2
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