CN206023601U - A kind of on/off circuit structure for sound equipment power amplifier module - Google Patents
A kind of on/off circuit structure for sound equipment power amplifier module Download PDFInfo
- Publication number
- CN206023601U CN206023601U CN201620998433.5U CN201620998433U CN206023601U CN 206023601 U CN206023601 U CN 206023601U CN 201620998433 U CN201620998433 U CN 201620998433U CN 206023601 U CN206023601 U CN 206023601U
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- diode
- branch road
- power amplifier
- electric capacity
- amplifier module
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Abstract
The utility model discloses a kind of on/off circuit structure for sound equipment power amplifier module, it is related to the technical field of audio processing equipment, including rectification circuit, the rectification circuit includes branch road one and branch road two, the first diode D1 and the second diode D2 is in series with branch road one, the 3rd diode D3 and the 4th diode D4 is in series with branch road two, and the input of four parallel branches is connected to two coil-ends of relay K1 with outfan；The first power connector end is formed in branch road one between two diodes, second source connection end is formed in branch road two between two diodes, first power connector end is through the second electric capacity and K2 connection power positive ends, second electric capacity parallel connection slide rheostat R, power positive end is also connected with the normally opened contact of K1, the negative pole end connection second source connection end of power supply.This utility model is easily achieved, it is adaptable to multi-channel power amplifier or the machinery equipment with multiple independent electric power supplies.
Description
Technical field
This utility model is related to the technical field of audio processing equipment, and in particular to a kind of opening for sound equipment power amplifier module
Shutdown circuit structure.
Background technology
The mechanical switch in professional power amplifier field is presently used for due to by volumetric constraint, can only achieve the output current of 16A,
But often beyond 16A when the charging current and normal work of powerful power amplifier, so as to being easily caused switch over-loading and
Heating, damage equipment, or even cause fire.According to electrical switch, then circuit is complicated, difficulty is big, increased cost, and not
Controlling switch machine can be carried out using power supply sequential device；Even more so for powerful multi-channel power amplifier.
Four pins are provided with relay, and four pins are respectively first coil end, the second coil-end, first normally opened
Contact and the second normally opened contact.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model aims to provide a kind of switch for sound equipment power amplifier module
Electromechanical line structure, simple structure, low cost, it is adaptable to multi-channel power amplifier or the machinery equipment with multiple independent electric power supplies.
For achieving the above object, this utility model is adopted the following technical scheme that：
A kind of on/off circuit structure for sound equipment power amplifier module, including rectification circuit, the rectification circuit includes branch road
One with branch road two, include the first diode D1 and the second diode D2 of series connection on the branch road one, include on the branch road two
3rd diode D3 and the 4th diode D4 of series connection, separately have a Zener diode ZD5, for the first electric capacity C1 for filtering and after
Electrical equipment K1, the branch road one, branch road two, Zener diode ZD5, the first electric capacity C1 and relay K1 form five parallel branches, its
In the parallel branch that first coil end in repeat circuit K1 is located with the second coil-end cut-in relay K1；In the branch road one
Site between one diode D1 and the second diode D2 forms the first power connector end, in the branch road two the 3rd diode D3 with
Site between 4th diode D4 forms second source connection end, the second electric capacity C2 that first power connector end is concatenated and
Switch K2 connection power positive ends, second electric capacity C2, one slide rheostat R of parallel connection, the power positive end are also connected with relay K1
In the first normally opened contact, the negative pole end connection second source connection end of power supply, the second normally opened contact in relay K1 are formed
The signal input part of on/off circuit, the negative pole end of power supply form the signal output part of on/off circuit.
Used as a kind of improvement of the present utility model, the second electric capacity C2 adopts iron-clad oil-filled capacitor.
Preferably, first diode D1, the second diode D2, the specified electricity of the 3rd diode D3 and the 4th diode D4
Pressure is 400V, rated current and is 1A；The rated voltage of Zener diode ZD5 is 24V；The rated voltage of the first electric capacity C1 is
24V, capacity are 1000F；It is 1M Ω that slide rheostat R accesses effective resistance of circuit；The rated voltage of relay K1 be 24V,
Rated current is 40A；The rated current of switch K2 is 5A.
Preferably, the first electric capacity C1 is electrochemical capacitor.
The beneficial effects of the utility model are：Alternating current power supply is converted to low-voltage DC by the way of capacitance decompression
Exported, and make circuit output meet the demand of power amplifier module by selecting the element of certain parameter, different capacity can be met
Power amplifier module demand；Small volume, is conducive to optimizing device structure；Low cost, it is easy to accomplish, before promoting the use of
Scape.
Description of the drawings
Fig. 1 is a kind of structural representation of the on/off circuit structure for sound equipment power amplifier module of this utility model.
Reference：1st, first coil end；2nd, the second coil-end；3rd, the first normally opened contact；4th, the second normally opened contact.
Specific embodiment
Below, in conjunction with accompanying drawing and specific embodiment, this utility model is described further：
As shown in figure 1, a kind of on/off circuit structure for sound equipment power amplifier module, including rectification circuit, the rectified current
Road includes branch road one and branch road two, includes the first diode D1 and the second diode D2 of series connection, the branch road on the branch road one
The 3rd diode D3 and the 4th diode D4 of series connection is included on two, is separately had a Zener diode ZD5, is used for the first of filtering
Electric capacity C1 and relay K1, the branch road one, branch road two, Zener diode ZD5, the first electric capacity C1 and relay K1 form five simultaneously
In the parallel branch that connection branch road, the first coil end 1 in its repeat circuit K1 and 2 cut-in relay K1 of the second coil-end are located；
In the branch road one, site between the first diode D1 and the second diode D2 forms the first power connector end, the in the branch road two
Site between three diode D3 and the 4th diode D4 forms second source connection end, and first power connector end is concatenated
Second electric capacity C2 and switch K2 connection power positive ends, the second electric capacity C2 as current limiting capacitance is iron-clad oil-filled capacitor, and this
Two electric capacity C2, one slide rheostat R of parallel connection, the power positive end are also connected with the first normally opened contact 3 in relay K1, power supply
Negative pole end connection second source connection end, the second normally opened contact 4 in relay K1 form the signal input part of on/off circuit,
The negative pole end of power supply forms the signal output part of on/off circuit；First diode D1, the second diode D2, the 3rd diode
The rated voltage of D3 and the 4th diode D4 is 400V, rated current and is 1A；The rated voltage of Zener diode ZD5 is
24V；First electric capacity C1 is electrochemical capacitor, and it is 1000F that the rated voltage of the first electric capacity C1 is 24V, capacity；Slide rheostat R connects
The effective resistance for entering circuit is 1M Ω；The rated voltage of relay K1 is 24V, rated current is 40A；The rated current of switch K2
For 5A.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
Corresponding change and deformation, and all these change and deformation should all belong to the protection of this utility model claim
Within the scope of.
Claims (5)
1. a kind of on/off circuit structure for sound equipment power amplifier module, it is characterised in that including rectification circuit, the rectified current
Road includes branch road one and branch road two, includes the first diode D1 and the second diode D2 of series connection on the branch road one, described
The 3rd diode D3 and the 4th diode D4 of series connection is included on branch road two, is separately had a Zener diode ZD5, is used for filtering
First electric capacity C1 and relay K1, the branch road one, branch road two, Zener diode ZD5, the first electric capacity C1 and relay K1 are formed
Five parallel branches, the parallel branch that the first coil end in its repeat circuit K1 is located with the second coil-end cut-in relay K1
In；The first power connector end of site formation in the branch road one between first diode D1 and the second diode D2, described
Site between Lu Erzhong the 3rd diode D3 and the 4th diode D4 forms second source connection end, the first power supply connection
The second electric capacity C2 and switch K2 connection power positive ends that end is concatenated, one slide rheostat R of the second electric capacity C2 parallel connections, institute
The first normally opened contact that power positive end is also connected with relay K1 is stated, the negative pole end of power supply connects second source connection end, after
The second normally opened contact in electrical equipment K1 forms the signal input part of on/off circuit, and the negative pole end of power supply forms on/off circuit
Signal output part.
2. the on/off circuit structure of sound equipment power amplifier module is used for as claimed in claim 1, it is characterised in that second electricity
Appearance C2 is iron-clad oil-filled capacitor.
3. the on/off circuit structure of sound equipment power amplifier module is used for as claimed in claim 1, it is characterised in that the described 1st
Pole pipe D1, the second diode D2, the rated voltage of the 3rd diode D3 and the 4th diode D4 are 400V, rated current and are
1A；The rated voltage of Zener diode ZD5 is 24V；The rated voltage of the first electric capacity C1 is 24V, capacity is 1000F；Relay
The rated voltage of K1 is 24V, rated current is 40A；The rated current of switch K2 is 5A.
4. the on/off circuit structure of sound equipment power amplifier module is used for as claimed in claim 1, it is characterised in that the slip becomes
It is 1M Ω that resistance device R accesses effective resistance of circuit.
5. the on/off circuit structure of sound equipment power amplifier module is used for as claimed in claim 1, it is characterised in that first electricity
Appearance C1 is electrochemical capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620998433.5U CN206023601U (en) | 2016-08-30 | 2016-08-30 | A kind of on/off circuit structure for sound equipment power amplifier module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620998433.5U CN206023601U (en) | 2016-08-30 | 2016-08-30 | A kind of on/off circuit structure for sound equipment power amplifier module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023601U true CN206023601U (en) | 2017-03-15 |
Family
ID=58254997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620998433.5U Expired - Fee Related CN206023601U (en) | 2016-08-30 | 2016-08-30 | A kind of on/off circuit structure for sound equipment power amplifier module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225658A (en) * | 2020-02-05 | 2021-08-06 | 迪芬尼声学科技股份有限公司 | Loudspeaker, voice coil driving system thereof and method for driving voice coil of loudspeaker |
-
2016
- 2016-08-30 CN CN201620998433.5U patent/CN206023601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225658A (en) * | 2020-02-05 | 2021-08-06 | 迪芬尼声学科技股份有限公司 | Loudspeaker, voice coil driving system thereof and method for driving voice coil of loudspeaker |
| CN113225658B (en) * | 2020-02-05 | 2022-09-27 | 迪芬尼声学科技股份有限公司 | Loudspeaker, voice coil driving system thereof and method for driving voice coil of loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20190830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |