CN219351893U - Passive loudspeaker box high-pitch lifting switch circuit - Google Patents
Passive loudspeaker box high-pitch lifting switch circuit Download PDFInfo
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- CN219351893U CN219351893U CN202320708949.1U CN202320708949U CN219351893U CN 219351893 U CN219351893 U CN 219351893U CN 202320708949 U CN202320708949 U CN 202320708949U CN 219351893 U CN219351893 U CN 219351893U
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Abstract
The positive electrode of an input terminal is connected with the negative electrode of a tweeter after sequentially passing through a resistor R1, a capacitor C2, a resistor R2 and an LRC circuit, the negative electrode of the input terminal is connected with the positive electrode of the tweeter, the capacitor C1 is connected with the negative electrode of the input terminal through an inductor L1, and the resistor R2 is connected with the negative electrode of the input terminal through a resistor R3; the positive electrode of the input terminal is connected with the positive electrode of the woofer through an inductor L2, the negative electrode of the input terminal is connected with the negative electrode of the woofer, and the input end of the inductor L2 is connected with the negative electrode of the input terminal through a capacitor C3; the LRC circuit is composed of a change-over switch S, a resistor R4, a capacitor C4 and an inductor L3 which are mutually connected in parallel. The frequency circuit part in the frequency divider circuit is controlled by the switch to meet the control of the sensitivity of the high audio frequency section, so that the effect of improving the high sound is achieved on the hearing.
Description
Technical Field
The utility model relates to the field of sound, in particular to a passive loudspeaker box high-pitch lifting switch circuit.
Background
The passive professional sound box on the market basically has no high-pitched lifting circuit, and the active sound box has a knob lifting function. If the high pitch of the passive loudspeaker box is to be improved, the device is required to be used with a sound console or an electronic EQ adjusting device, so that the device is increased undoubtedly, the linkage is complex, and a user needs to have a certain technical expertise.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a passive loudspeaker box high-pitch lifting switch circuit which is simple and convenient to operate and has low requirements on professional technical knowledge of users.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the positive electrode of an input terminal is connected with the negative electrode of a tweeter after sequentially passing through a resistor R1, a capacitor C2, a resistor R2 and an LRC circuit, the negative electrode of the input terminal is connected with the positive electrode of the tweeter, the capacitor C1 is connected with the negative electrode of the input terminal through an inductor L1, and the resistor R2 is connected with the negative electrode of the input terminal through a resistor R3; the positive electrode of the input terminal is connected with the positive electrode of the woofer through an inductor L2, the negative electrode of the input terminal is connected with the negative electrode of the woofer, and the input end of the inductor L2 is connected with the negative electrode of the input terminal through a capacitor C3; the LRC circuit is composed of a change-over switch S, a resistor R4, a capacitor C4 and an inductor L3 which are mutually connected in parallel. The principle of the utility model is as follows: the LRC circuit is connected or short-circuited by using the toggle switch, a flatter high-sound response curve is obtained after the LRC circuit is connected, and a high 3dB curve appears at a high-frequency 2k-16kHz frequency band when the LRC circuit is disconnected; the frequency circuit part in the frequency divider circuit is controlled by the switch to meet the control of the sensitivity of the high audio frequency section, so that the effect of improving the high sound is achieved on the hearing.
Compared with the prior art, the utility model has the beneficial effects that:
the LRC circuit is connected or short-circuited by using the toggle switch, a flatter high-sound response curve is obtained after the LRC circuit is connected, and a high 3dB curve appears at a high-frequency 2k-16kHz frequency band when the LRC circuit is disconnected; the frequency circuit part in the frequency divider circuit is controlled by the switch to meet the control of the sensitivity of the high audio frequency section, so that the effect of improving the high sound is achieved on the hearing.
Drawings
Fig. 1 is a circuit diagram of a frequency divider.
Fig. 2 is a frequency response graph.
Detailed Description
The utility model is further described below with reference to the drawings.
As shown in fig. 1, the positive electrode of an input terminal is connected with the negative electrode of a tweeter T after passing through a resistor R1, a capacitor C2, a resistor R2 and an LRC circuit in sequence, the negative electrode of the input terminal is connected with the positive electrode of the tweeter T, the capacitor C1 and the capacitor C2 are connected with the negative electrode of the input terminal through an inductor L1, and the resistor R2 and the LRC circuit are connected with the negative electrode of the input terminal through a resistor R3; the positive electrode of the input terminal is connected with the positive electrode of the woofer W through an inductor L2, the negative electrode of the input terminal is connected with the negative electrode of the woofer W, and the input end of the inductor L2 is connected with the negative electrode of the input terminal through a capacitor C3; the LRC circuit is composed of a change-over switch S, a resistor R4, a capacitor C4 and an inductor L3 which are mutually connected in parallel. The principle of the utility model is as follows: as shown in fig. 2, the LRC circuit is connected or short-circuited by using a toggle switch, a relatively flat high sound response curve is obtained after the LRC circuit is connected, and a high 3dB curve appears at a high-frequency 2k-16kHz frequency band when the LRC circuit is disconnected; the frequency circuit part in the frequency divider circuit is controlled by the switch to meet the control of the sensitivity of the high audio frequency section, so that the effect of improving the high sound is achieved on the hearing.
Claims (1)
1. A passive loudspeaker box high-pitch lifting switch circuit is characterized in that: the positive electrode of the input terminal is connected with the negative electrode of the tweeter after sequentially passing through a resistor R1, a capacitor C2, a resistor R2 and an LRC circuit, the negative electrode of the input terminal is connected with the positive electrode of the tweeter, the capacitor C1 and the capacitor C2 are connected with the negative electrode of the input terminal through an inductor L1, and the resistor R2 and the LRC circuit are connected with the negative electrode of the input terminal through a resistor R3; the positive electrode of the input terminal is connected with the positive electrode of the woofer through an inductor L2, the negative electrode of the input terminal is connected with the negative electrode of the woofer, and the input end of the inductor L2 is connected with the negative electrode of the input terminal through a capacitor C3; the LRC circuit is composed of a change-over switch S, a resistor R4, a capacitor C4 and an inductor L3 which are mutually connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320708949.1U CN219351893U (en) | 2023-04-03 | 2023-04-03 | Passive loudspeaker box high-pitch lifting switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320708949.1U CN219351893U (en) | 2023-04-03 | 2023-04-03 | Passive loudspeaker box high-pitch lifting switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219351893U true CN219351893U (en) | 2023-07-14 |
Family
ID=87110687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320708949.1U Active CN219351893U (en) | 2023-04-03 | 2023-04-03 | Passive loudspeaker box high-pitch lifting switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219351893U (en) |
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2023
- 2023-04-03 CN CN202320708949.1U patent/CN219351893U/en active Active
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