Output circuit structure of audio power module

Abstract

The utility model relates to the field of audio power supplies, in particular to an output circuit structure of an audio power supply module, which is characterized by comprising an anode lead, a cathode lead and a grounding lead, a plurality of first CBB capacitors are connected in series between the positive wire and the grounding wire, a plurality of second high-frequency low-resistance capacitors are connected in series between the negative wire and the grounding wire, and a plurality of second CBB capacitors are connected in series between the negative wire and the grounding wire. The high-frequency noise filter has the advantages of small loss, continuity, stability, low ripple, low noise, good high-frequency noise filtering effect, strong filtering performance and the like.

Description

Technical Field

[0001] The utility model relates to the field of audio power supplies, in particular to an output circuit structure of an audio power module. Background Art

[0002] Currently, in audio power supply devices, many convert alternating current into direct current for use in audio devices through an input rectification and filtering circuit, a voltage transformation circuit, and an output rectification and filtering circuit in sequence. Among them, in order to meet the filtering requirements in the output rectification and filtering circuit, it is now achieved by simply connecting a filtering capacitor in series between the positive and negative poles. Although this can achieve a certain filtering effect, it is prone to problems such as large losses of the filtering capacitor, low stability, high ripple, and high noise; at the same time, its filtering performance for high-frequency noise is limited, so the filtering quality is not very high; this has a greater adverse impact on improving the performance of audio devices. Therefore, it is very necessary to design an output circuit structure of an audio power module to solve the above technical problems. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above problems and deficiencies, and provide an output circuit structure of an audio power module, which has the advantages of small loss, continuous stability, low ripple, low noise, good filtering effect for high-frequency noise, and strong filtering performance.

[0004] The technical solution of the utility model is realized as follows:

[0005] An output circuit structure of an audio power module, characterized by including a positive wire, a negative wire, and a ground wire. Among them, a plurality of first high-frequency low-resistance capacitors are connected in series between the positive wire and the ground wire, and a plurality of first CBB capacitors are also connected in series between the positive wire and the ground wire. A plurality of second high-frequency low-resistance capacitors are connected in series between the negative wire and the ground wire, and a plurality of second CBB capacitors are also connected in series between the negative wire and the ground wire.

[0006] Preferably, there are 7 first high-frequency low-resistance capacitors and 3 first CBB capacitors; there are 7 second high-frequency low-resistance capacitors and 3 second CBB capacitors.

[0007] Preferably, rectification circuits are respectively connected in series at the input ends of the positive wire and the negative wire.

[0008] Preferably, the rectification circuit includes a diode, a capacitor, and a resistor. The capacitor and the resistor are connected in series and then connected in series with the diode.

[0009] Advantages of the present utility model: In this output circuit structure, a positive wire, a negative wire, and a ground wire are adopted. Between the positive wire and the ground wire, several first high-frequency low-resistance capacitors and several first CBB capacitors are connected in series. Between the negative wire and the ground wire, several second high-frequency low-resistance capacitors and several second CBB capacitors are also connected in series. Among them, the high-frequency low-resistance capacitors have the advantages of small loss, continuous stability, low ripple, and low noise. The CBB capacitors can filter high-frequency noise. In this way, the output circuit structure can achieve a very good filtering effect, with good bass performance, thus facilitating the improvement of the performance of audio devices. At the same time, such an output circuit structure also has very high safety, which can not only ensure very safe use but also facilitate the extension of the service life. Description of the Drawings

[0010] Figure 1 It is a schematic circuit diagram of the output circuit structure in the present utility model.

[0011] Figure 2 It is a partial schematic diagram of the use state of the present utility model. Detailed Embodiment

[0012] As Figure 1 shown, the output circuit structure of an audio power module described in the present utility model includes a positive wire 1, a negative wire 2, and a ground wire 3. Between the positive wire 1 and the ground wire 3, several first high-frequency low-resistance capacitors 4 are connected in series. Between the positive wire 1 and the ground wire 3, several first CBB capacitors 5 are also connected in series. Between the negative wire 2 and the ground wire 3, several second high-frequency low-resistance capacitors 6 are connected in series. Between the negative wire 2 and the ground wire 3, several second CBB capacitors 7 are also connected in series.

[0013] In this output circuit structure, a positive wire 1, a negative wire 2, and a ground wire 3 are adopted. Between the positive wire 1 and the ground wire 3, several first high-frequency low-resistance capacitors 4 and several first CBB capacitors 5 are connected in series. Between the negative wire 2 and the ground wire 3, several second high-frequency low-resistance capacitors 6 and several second CBB capacitors 7 are also connected in series. Among them, the high-frequency low-resistance capacitors have the advantages of small loss, continuous stability, low ripple, and low noise. The CBB capacitors can filter high-frequency noise. In this way, the output circuit structure can achieve a very good filtering effect, with good bass performance, thus facilitating the improvement of the performance of audio devices. At the same time, such an output circuit structure also has very high safety, which can not only ensure very safe use but also facilitate the extension of the service life.

[0014] When manufacturing the output circuit structure using a circuit board, the relevant conductive lines on the circuit board are respectively used to form the positive wire 1, the negative wire 2, and the ground wire 3, which facilitates the rapid manufacture of this output circuit structure.

[0015] As Figure 1 shown, there are 7 first high-frequency low-resistance capacitors 4 and 3 first CBB capacitors 5; there are 7 second high-frequency low-resistance capacitors 6 and 3 second CBB capacitors 7. This can not only make the output circuit structure have a relatively simple structure, but also make the output circuit structure have better performance in the case of controlling the manufacturing cost.

[0016] As Figure 1 shown, rectifying circuits 8 are respectively connected in series to the input ends of the positive electrode wire 1 and the negative electrode wire 2. In this way, rectification can be carried out first and then filtering, so that the output quality of the output circuit structure can be higher, which further helps to improve the reliability and applicability of the output circuit structure.

[0017] As Figure 1 shown, the rectifying circuit 8 includes a diode 81, a capacitor 82, and a resistor 83. The capacitor 82 and the resistor 83 are connected in series and then connected in series with the diode 81. Such a rectifying circuit 8 is very simple and reliable. This can not only facilitate manufacturing, but also make the rectifying performance very good in the case of controlling the manufacturing cost, which helps to further improve the reliability and applicability of the output circuit structure.

[0018] As Figure 2 shown, during actual use, the input ends of the positive electrode wire 1, the negative electrode wire 2, and the grounding wire 3 are connected to the output end of the voltage transformation circuit 10 of the audio power supply module, so that the actual use requirements can be met.

Claims

1. The output circuit structure of an audio power module, characterized in that: It includes a positive electrode wire (1), a negative electrode wire (2), and a grounding wire (3). Among them, several first high-frequency low-resistance capacitors (4) are connected in series between the positive electrode wire (1) and the grounding wire (3). Several first CBB capacitors (5) are also connected in series between the positive electrode wire (1) and the grounding wire (3). Several second high-frequency low-resistance capacitors (6) are connected in series between the negative electrode wire (2) and the grounding wire (3). Several second CBB capacitors (7) are also connected in series between the negative electrode wire (2) and the grounding wire (3).

2. The output circuit structure of the audio power module according to claim 1, wherein: There are 7 first high-frequency low-resistance capacitors (4) and 3 first CBB capacitors (5); there are 7 second high-frequency low-resistance capacitors (6) and 3 second CBB capacitors (7).

3. The output circuit structure of the audio power module according to claim 1 or 2, characterized in that: Rectifying circuits (8) are respectively connected in series to the input ends of the positive electrode wire (1) and the negative electrode wire (2).

4. The output circuit structure of the audio power module according to claim 3, characterized in that: The rectifying circuit (8) includes a diode (81), a capacitor (82), and a resistor (83). The capacitor (82) and the resistor (83) are connected in series and then connected in series with the diode (81).

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