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JPS5031925

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DESCRIPTION JPS5031925
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of a loudspeaker showing
one embodiment of the present invention. 3 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · \−57−
[Detailed description of the invention] The present invention relates to the beaker, the
improvement of the low range gain and the middle and high range damping is also OK.
Conventionally, the voice coil of the speaker has multiple layers, but there is an O, but the ζ040
wire coil wire length is increased to improve the middle blue and high blue 0 danbi sig power (1)
1 墾; but the weight of the voice coil There is a drawback that the gain of the bass increases and
the gain of the low range decreases. The present invention is considered to be a point like ζO 4
so a low-pass filter is interposed and a coil of 9 years old and a bypass filter are interposed to
form a voice coil by layering in layers of 9 years of 20 coils. The purpose is to improve the range
gain and the middle and high range damping. One embodiment of the present invention will be
described with reference to the drawings. fl) 12> is an input signal terminal, and a low pass filter
(3) is interposed between ζO manual input signal terminal +1) (2), and a coil of 9 years old (4
and a bypass filter (5) are interposed. A nine-poise coil (7) is connected by a coil (6). In the case
of the present embodiment, the low pass filter (3) is constituted by an inductance, and (2) the
west-J bypass filter (5) is constituted by a capacitance. The coil 1 + 4 + (6) of 1 year and 2 years
above is wound in layers on a bobbin (not shown) which is attached to the cone paper (8) K
integral K i 1 and is formed on the outer surface of the 2 year old coil (6). The coil of 1 year old
(4) is wound in layers. In this case, the coil (4) +6) of the pole 1 and the pole 2 is m times in one
or two layers depending on the desired characteristics. Next, the operation will be described. The
general formula of the speaker OQ is given by the following formula. (J’wno’8;、、
−、−−”−(%Jy−)’xlo? R。 Where: att: IK effective mass of vibration system (j'r)
S #: vibration supporting portion O stiffness (ai 7% # Δ 1) (3) '1-1 B; voice coil in 1 m pole gap
Average flux writing degree of the existing stone portion (Qaszz) Jw +, wire length of voice coil (a
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&) Rv: resistance of voice coil (Ω). Upper type company 4. As Q increases, Q decreases and Jν
decreases as Q decreases. However, when Q decreases, damping in the middle and high ranges is
reformed, and when Q increases, the low range gain It is known that there is a large stone. After
that, it is possible that desired sound quality can be obtained by changing K by 1 m, and so on.
That is, insert the low-pass filter (3) into the coil 1 of year 1 and make the carp of the year 1 + 4)
e> Jw small (4) If the coil 1 of year 4 (K) vs. stone Q It will be great.
If you insert an I-pass filter (5), which is 1N, and have an I-pass filter (5), the Q for the 2nd coil
(6) will be small if the J coil of the 20th coil (6) is large. As a result, the mid-high range O dashing
characteristics and the low range gain will be simultaneously improved. Furthermore, by using a
coil (4) K edging wire of a grade 1 coil, the cross-sectional area of the coil becomes large, so the
bass range is improved much. According to the present invention, a voice coil is formed by
inserting a low-pass filter and a coil of pole 1 and inserting an I-pass filter and forming a 20-yearold coil with a layer K11 l; And l? It combines the characteristics of each of the 20 coils, thus
improving the bass O gain and the mid, treble (5) "sounding daughter dasping, and the mid and
treble sounds that have fallen along with the roaring range Can be generated.
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