The utility model discloses an acoustic device with an alternating current filter, which comprises an acoustic power supply and acoustics, wherein the acoustic power supply is electrically connected with the acoustics, the alternating current filter and a capacitor are arranged in front of the acoustic power supply, the alternating current filter is connected in front of the acoustic power supply in series, and the capacitor is connected at the output end of the alternating current filter in parallel. By adding the alternating current filter between the power supply and the acoustics, the alternating current interference in the power supply is filtered out, the sound emitted by the acoustics can become more elegant and a user can appreciate an elegant music; furthermore, the high-voltage ceramic capacitor is connected at the output end of the alternating current filter in parallel, thereby being capable of getting the stable output power supply.
Description A kind of PA-system that has alternating current filterTechnical field
The utility model relates to PA-system, particularly, relates to a kind of PA-system that has alternating current filter.
Background technology
In the market the power supply used of PA-system be adopt with alternating current carry out transformation again rectification obtain the device of output DC.This device does not possess buffer action to the hum in sound equipment source, makes alternating current source bigger to the interference of sound equipment, is unfavorable for the appreciation of music track.
Summary of the invention
The purpose of the utility model is, to the problems referred to above, proposes a kind of PA-system that has alternating current filter, isolates to realize that alternating current source disturbs sound equipment, to reach the advantage that can appreciate graceful music.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is:
A kind of PA-system that has alternating current filter; Comprise sound equipment power supply and sound equipment, this sound equipment power supply is electrically connected with sound equipment, before the sound equipment power supply, is provided with alternating current filter and electric capacity; Before said alternating current filter was connected on the sound equipment power supply, said electric capacity was connected in parallel on the output of alternating current filter.
Further, said electric capacity is higfh-tension ceramics electric capacity.
A kind of PA-system that has alternating current filter that the technical scheme of the utility model provides, owing to comprise alternating current filter, can be with the interchange interference signal elimination in the device; Thereby can overcome alternating current source in the prior art sound equipment is caused the defective of interference, realizing the avoiding interference of alternating current source, thereby enjoy the advantage of graceful music sound equipment.And can obtain stable out-put supply at electric capacity of output parallel connection of alternating current filter.
Further feature of the utility model and advantage will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through implementing the utility model.The purpose of the utility model can realize through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtain with other advantages.
Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of specification, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is according to the described a kind of circuit theory diagrams that have the PA-system of alternating current filter of the utility model.
In conjunction with accompanying drawing, Reference numeral is following among the utility model embodiment:
1-sound equipment power supply; The 2-sound equipment; The 3-alternating current filter; 4-electric capacity.
Embodiment
Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
According to the utility model embodiment, a kind of PA-system that has alternating current filter is provided.As shown in Figure 1; Present embodiment comprises: sound equipment power supply 1 and sound equipment 2, and this sound equipment power supply 1 is electrically connected with sound equipment 2, before sound equipment power supply 1, is provided with alternating current filter 3 and electric capacity 4; Before alternating current filter 3 was connected on sound equipment power supply 1, electric capacity 4 was connected between two electrodes behind the alternating current filter 3.
This device utilizes the undesirable mutual electromagnetic inductance principle, before sound equipment power supply 1, adds alternating current filter 3, is not changing under original voltage condition, reaches to remove to exchange clutter, plays filter effect.This device utilizes coil one and coil two, mutual inductance on same magnet ring, and, make out-put supply stable at the output parallel high voltage ceramic condenser of alternating current filter 3.
In sum; A kind of PA-system that has alternating current filter that the utility model provides is through adding alternating current filter between power supply and sound equipment; Elimination the interchange in the power supply disturb, the sound that sound equipment is sent is graceful more, can enjoy elegant music; And, can obtain stable out-put supply at the output parallel high voltage ceramic condenser of alternating current filter.
What should explain at last is: the above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (2) Translated from Chinese1.ä¸ç§å¸¦æ交æµæ»¤æ³¢å¨çé³åè£ ç½®ï¼å æ¬é³åçµæºï¼1ï¼åé³åï¼2ï¼ï¼è¯¥é³åçµæº(1)ä¸é³å(2)çµè¿æ¥ï¼å ¶ç¹å¾å¨äºï¼å¨é³åçµæº(1)å设置æ交æµæ»¤æ³¢å¨(3)åçµå®¹(4)ï¼æ述交æµæ»¤æ³¢å¨(3)串èå¨é³åçµæºï¼1ï¼åï¼æè¿°çµå®¹ï¼4ï¼å¹¶èå¨äº¤æµæ»¤æ³¢å¨ï¼3ï¼çè¾åºç«¯ã 1. An audio device with an AC filter, including an audio power supply (1) and an audio (2), the audio power supply (1) is electrically connected to the audio (2), and it is characterized in that, before the audio power supply (1) An AC filter (3) and a capacitor (4) are provided, the AC filter (3) is connected in series before the audio power supply (1), and the capacitor (4) is connected in parallel at the output end of the AC filter (3). 2.æ ¹æ®æå©è¦æ±1æè¿°çä¸ç§å¸¦æ交æµæ»¤æ³¢å¨çé³åè£ ç½®ï¼å ¶ç¹å¾å¨äºï¼æè¿°çµå®¹ï¼4ï¼ä¸ºé«åé¶ç·çµå®¹ã 2. An audio device with an AC filter according to claim 1, characterized in that the capacitor (4) is a high-voltage ceramic capacitor.
CN2011202160187U 2011-06-23 2011-06-23 Acoustic device with alternating current filter Expired - Fee Related CN202127502U (en) Priority Applications (1) Application Number Priority Date Filing Date Title CN2011202160187U CN202127502U (en) 2011-06-23 2011-06-23 Acoustic device with alternating current filter Applications Claiming Priority (1) Application Number Priority Date Filing Date Title CN2011202160187U CN202127502U (en) 2011-06-23 2011-06-23 Acoustic device with alternating current filter Publications (1) Family ID=45490562 Family Applications (1) Application Number Title Priority Date Filing Date CN2011202160187U Expired - Fee Related CN202127502U (en) 2011-06-23 2011-06-23 Acoustic device with alternating current filter Country Status (1) Cited By (1) * Cited by examiner, â Cited by third party Publication number Priority date Publication date Assignee Title CN102256194A (en) * 2011-06-23 2011-11-23 è¡å½å¼º Sound device with alternating current filterGranted publication date: 20120125
Termination date: 20120623
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