CN204481770U - Sampling protective device in power amplifier module debugging - Google Patents
Sampling protective device in power amplifier module debugging Download PDFInfo
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- CN204481770U CN204481770U CN201520201436.7U CN201520201436U CN204481770U CN 204481770 U CN204481770 U CN 204481770U CN 201520201436 U CN201520201436 U CN 201520201436U CN 204481770 U CN204481770 U CN 204481770U
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- fuse
- amplifier module
- power amplifier
- single pole
- sample circuit
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Abstract
The utility model relates to the sampling protective device in the debugging of a kind of power amplifier module, comprising: protective circuit and sample circuit; Protective circuit comprises: two inputs, two single pole multiple throws and two groups of fuses, and sample circuit comprises: two load resistances, two digital voltmeters and two outputs; Wherein, two inputs are connected with the moved end of two single pole multiple throws respectively, and the not moved end of two single pole multiple throws is connected with one end of two groups of fuses respectively; The other end of two groups of fuses is connected with one end of two load resistances respectively, and the other end of two load resistances is connected with two outputs respectively, and two digital voltmeters are in parallel with two load resistances respectively; Wherein, multiple fuse monomers that fuse comprises the maximum current corresponding to different power tube cast respectively are often organized; The one end often organizing multiple fuse monomers of fuse is connected with multiple not moved ends of single pole multiple throw respectively, and the other end is connected to a bit and is connected with sample circuit respectively.
Description
Technical field
The utility model relates to a kind of protective device of power amplifier module, particularly relates to the sampling protective device in the debugging of a kind of power amplifier module.
Background technology
Along with the development in radio, film and television market, kind and the quantity of transmitter constantly increase.This just brings large quantization and the variation of power amplifier module scheduling and planning.The debugging of existing power amplifier module is still the debugging mode adopting discrete frock module, namely debugs respectively each frock that power amplifier module is housed.
Because in debug process, the operating current of amplifying circuit is dynamic, can change at any time, the limiting quantity of reservation standard is exceeded once this variable quantity, damage will be caused to power tube, therefore sample circuit and the protective circuit of debugging are also installed in each frock, to be monitored the instant operating current of power tube in debug process by sample circuit, and when operating current variable quantity exceedes the limiting quantity of reservation standard, power supply is cut off by protective circuit, stop powering to power amplifier module, power tube is quit work, thus play the effect of protection power tube.
For the power amplifier module of variety classes, different size; because its job category, operating frequency, operating voltage, operating current, working method and working index etc. also exist many differences, sample circuit and the protective circuit of the debugging of therefore installing in frock are also different.The sample circuit and the protective circuit that so just there is debugging repeat to arrange; the sample circuit of debugging and protective circuit disunity; and while replacing power amplifier module; the problem of the trivial operations such as the sampling protective circuit also needing replacing to debug and protective circuit, thus affect speed and the uniformity of power amplifier module debugging.
Summary of the invention
The purpose of this utility model is, overcome the defect that prior art exists, and the sampling protective device in a kind of power amplifier module debugging of new structure is provided, technical problem to be solved makes it pass through to remove the sample circuit and protective circuit being originally arranged on debugging in each frock, by means of only increase by independently general device before the frock of power amplifier module is being housed, and protective circuit and the sample circuit of debugging are set in this device, come for variety classes, the debugging of different size power amplifier module, make power amplifier module frock miniaturized, standardization, simple operation, the data of record unitize, and the process of acceleration work amplification module debugging.
The purpose of this utility model and solve its technical problem be adopt following technical scheme realize.According to the sampling protective device in a kind of power amplifier module debugging that the utility model proposes, it comprises: protective circuit and sample circuit; Described protective circuit comprises: two inputs, two single pole multiple throws and two groups of fuses; Wherein, two described inputs are connected with the moved end of two described single pole multiple throws respectively, and the not moved end of two described single pole multiple throws is connected with one end of fuse described in two groups respectively; Described in two groups, the other end of fuse is connected with described sample circuit respectively; Described sample circuit comprises: two load resistances, two digital voltmeters and two outputs; Wherein, one end of two described load resistances is connected with the other end of fuse described in two groups respectively, and the other end of two described load resistances is connected with two described outputs respectively, and two described digital voltmeters are in parallel with two described load resistances respectively; Wherein, multiple fuse monomers that described fuse comprises the maximum current corresponding to different power tube cast respectively are often organized; The one end often organizing the multiple described fuse monomer of described fuse is connected with multiple not moved ends of described single pole multiple throw respectively, and the other end often organizing the multiple described fuse monomer of described fuse is connected to a bit and is connected with described sample circuit respectively.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Sampling protective device in aforesaid power amplifier module debugging; wherein often organize the fuse monomer that described fuse comprises five different sizes; each described single pole multiple throw comprises five not moved ends; the one end often organizing five described fuse monomers of described fuse respectively with five of described single pole multiple throw not moved end be connected, the other end often organizing five described fuse monomers of described fuse is connected to a bit and is connected with described sample circuit respectively.
Sampling protective device in aforesaid power amplifier module debugging, the described fuse monomer wherein often organizing five different sizes of described group of fuse is respectively the fuse that melt rated current is 1A, 3A, 7A, 10A and 12A.
Sampling protective device in aforesaid power amplifier module debugging, the described load resistance of wherein said sample circuit is power is 10W, and resistance is the resistance of 0.01 Ω.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, sampling protective device in the debugging of the utility model power amplifier module at least has following advantages and beneficial effect: the sampling protective device in the debugging of the utility model power amplifier module, by removing the sample circuit and protective circuit that are originally arranged on and debug in each frock, makes power amplifier module frock miniaturized; Owing to being only provided with power amplifier module in frock, frock is also made more to standardize; And while replacing power amplifier module, do not need sample circuit and the protective circuit of changing debugging again, make simple operation; Simultaneously because debugging recorded data is the visual reading in device in sample circuit digital watch, the data of record are also unitized; Thus can acceleration work amplification module debugging process.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of specification, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a preferred embodiment of the sampling protective device in the debugging of the utility model power amplifier module.
Fig. 2 is the schematic diagram that the preferred embodiment of sampling protective device in the debugging of the utility model power amplifier module is connected with power amplifier module and power supply.
Embodiment
For further setting forth the utility model for the technological means reaching predetermined goal of the invention and take and effect; below in conjunction with accompanying drawing and preferred embodiment; to according to its embodiment of sampling protective device, structure, feature and the effect thereof in the power amplifier module debugging that the utility model proposes, be described in detail as follows.
Referring to shown in Fig. 1, is the schematic diagram of a preferred embodiment of the sampling protective device in the debugging of the utility model power amplifier module.
Sampling protective device in power amplifier module debugging of the present utility model forms primarily of protective circuit 100 and sample circuit 200.Protective circuit 100 has two inputs a, b, two single pole multiple throw S
1, S
2with two groups of fuse F
10, F
20.Wherein, two inputs a, b respectively with two single pole multiple throw S
1, S
2moved end connect, two single pole multiple throw S
1, S
2not moved end respectively with two groups of fuse F
10, F
20one end connect, two groups of fuse F
10, F
20the other end be connected with sample circuit 200 respectively.Sample circuit 200 has two load resistance R
1, R
2, two number of units word voltage Table V
1, V
2with two outputs c, d.Wherein, two load resistance R
1, R
2one end respectively with two groups of fuse F
10, F
20the other end connect, two load resistance R
1, R
2the other end be connected with two outputs c, d respectively, two number of units word voltage Table V
1, V
2respectively with two load resistance R
1, R
2in parallel.
Wherein, often fuse F is organized
10(or F
20) there are multiple fuse monomer F of the maximum current corresponding to different power tube cast respectively
11, F
12, F
13, F
14, F
15(or F
21, F
22, F
23, F
24, F
25), these fuse monomers F
11, F
12, F
13, F
14, F
15(or F
21, F
22, F
23, F
24, F
25) respectively define the maximum current of specific power tube cast, in debug process, if the electric current of power tube exceeds this lowest high-current value, corresponding fuse monomer disconnects immediately, cuts off the power supply of power amplifier module, thus protection power tube is from damage.Wherein, often fuse F is organized
10(or F
20) multiple fuse monomer F
11, F
12, F
13, F
14, F
15(or F
21, F
22, F
23, F
24, F
25) one end respectively with single pole multiple throw S
1(or S
2) multiple not moved ends connect, often organize fuse F
10(or F
20) multiple fuse monomer F
11, F
12, F
13, F
14, F
15(or F
21, F
22, F
23, F
24, F
25) the other end be connected to 1 e (or f) after be connected with sample circuit 200 respectively.
As shown in Figure 1, in a preferred embodiment of this practicality, often organize fuse F
10(or F
20) there is the fuse monomer F of five different sizes
11, F
12, F
13, F
14, F
15(or F
21, F
22, F
23, F
24, F
25), each single pole multiple throw S
1(or S
2) there are five not moved ends, often organize fuse F
10(or F
20) five fuse monomer F
11, F
12, F
13, F
14, F
15(or F
21, F
22, F
23, F
24, F
25) one end respectively with single pole multiple throw S
1(or S
2) five not moved end connect, often organize fuse F
10(or F
20) five fuse monomer F
11, F
12, F
13, F
14, F
15(or F
21, F
22, F
23, F
24, F
25) the other end be connected to 1 e (or f) after be connected with sample circuit 200 respectively.
Wherein, often fuse F is organized
10(or F
20) the fuse monomer F of five different sizes
11, F
12, F
13, F
14, F
15(or F
21, F
22, F
23, F
24, F
25) be respectively the fuse that melt rated current is 1A, 3A, 7A, 10A and 12A.Therefore, two groups of fuse F
10, F
20fuse monomer F
11, F
12, F
13, F
14, F
15, F
21, F
22, F
23, F
24, F
25, protective circuit 100 is divided into 1A (corresponding fuse monomer F
11, F
21), 3A (corresponding fuse monomer F
12, F
22), 7A (corresponding fuse monomer F
13, F
23), 10A (corresponding fuse monomer F
14, F
24) and 12A (corresponding fuse monomer F
15, F
25) totally five gears.
When to small-power power amplifier module static debugging, by single pole multiple throw S
1(or S
2or S
1and S
2) by fuse monomer F
11(or F
21or F
11and F
21) access.When to the dynamic debugging of small-power power amplifier module, by single pole multiple throw S
1(or S
2or S
1and S
2) by fuse monomer F
12(or F
22or F
12and F
22) access.When to High-power amplifier module static debugging, by its operation class (of an amplifying stage) by single pole multiple throw S
1(or S
2or S
1and S
2) by fuse monomer F
11(or F
21or F
11and F
21), F
12(or F
22or F
12and F
22) or F
13(or F
23or F
13and F
23) access, when to the dynamic debugging of High-power amplifier module, by its operation class (of an amplifying stage) by single pole multiple throw S
1(or S
2or S
1and S
2) by fuse monomer F
13(or F
23or F
13and F
23), F
14(or F
24or F
14and F
24) or F
15(or F
25or F
15and F
25) access.
In a preferred embodiment of this practicality, the load resistance of sample circuit 200 is R
1, R
2power is 10W, and resistance is the resistance of 0.01 Ω, its object is to the big current during high power work that can bear power tube, and by digital voltage Table V
1, V
2the numerical value demonstrated draws current value by the formula of U=IR, used for debugging.
Referring to shown in Fig. 2, is the schematic diagram that a preferred embodiment of the sampling protective device in the debugging of the utility model power amplifier module is connected with power amplifier module and power supply.
In debugging, when power amplifier module 300 be a road power time, if only connect power supply 401, namely sample protective device and be connected with the positive pole of power supply 401 by input a, output c is connected with the point 1 of power amplifier module 300, by single pole multiple throw S
1, fuse group F
10, load resistance R
1and digital voltage Table V
1access, the point 3 of power amplifier module 300 is connected with the negative pole of power supply 401, and the point 2 of power amplifier module 300 is unsettled; Or only connect power supply 402, namely sample protective device and be only connected with the positive pole of power supply 402 by input b, output d is connected with the point 2 of power amplifier module 300, by single pole multiple throw S
2, fuse group F
20, load resistance R
2and digital voltage Table V
2access, the point 3 of power amplifier module 300 is connected with the negative pole of power supply 402, and the point 1 of power amplifier module 300 is unsettled.
When power amplifier module 300 is for duplex feeding; the utility model samples protective device and power amplifier module 300 and power supply 401 and 402 connection as shown in Figure 2; namely sample protective device to be connected with the positive pole of power supply 401 by input a, output c is connected with the point 1 of power amplifier module 300, by single pole multiple throw S
1, fuse group F
10, load resistance R
1and digital voltage Table V
1access, be connected with the positive pole of power supply 402 by input b, output d is connected with the point 2 of power amplifier module 300, by single pole multiple throw S
2, fuse group F
20, load resistance R
2and digital voltage Table V
2access, the point 3 of power amplifier module 300 is connected with the negative pole of power supply 401 and 402.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art are not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. the sampling protective device in power amplifier module debugging, is characterized in that it comprises: protective circuit and sample circuit;
Described protective circuit comprises: two inputs, two single pole multiple throws and two groups of fuses; Wherein, two described inputs are connected with the moved end of two described single pole multiple throws respectively, and the not moved end of two described single pole multiple throws is connected with one end of fuse described in two groups respectively; Described in two groups, the other end of fuse is connected with described sample circuit respectively;
Described sample circuit comprises: two load resistances, two digital voltmeters and two outputs; Wherein, one end of two described load resistances is connected with the other end of fuse described in two groups respectively, and the other end of two described load resistances is connected with two described outputs respectively, and two described digital voltmeters are in parallel with two described load resistances respectively;
Wherein, multiple fuse monomers that described fuse comprises the maximum current corresponding to different power tube cast respectively are often organized; The one end often organizing the multiple described fuse monomer of described fuse is connected with multiple not moved ends of described single pole multiple throw respectively, and the other end often organizing the multiple described fuse monomer of described fuse is connected to a bit and is connected with described sample circuit respectively.
2. the sampling protective device in power amplifier module debugging according to claim 1; it is characterized in that wherein often organizing the fuse monomer that described fuse comprises five different sizes; each described single pole multiple throw comprises five not moved ends; the one end often organizing five described fuse monomers of described fuse respectively with five of described single pole multiple throw not moved end be connected, the other end often organizing five described fuse monomers of described fuse is connected to a bit and is connected with described sample circuit respectively.
3. the sampling protective device in power amplifier module debugging according to claim 2, is characterized in that the described fuse monomer of five different sizes wherein often organizing described group of fuse is respectively the fuse that melt rated current is 1A, 3A, 7A, 10A and 12A.
4. the sampling protective device in the power amplifier module debugging according to claim arbitrary in claims 1 to 3, it is characterized in that the described load resistance of wherein said sample circuit be power is 10W, resistance is the resistance of 0.01 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201436.7U CN204481770U (en) | 2015-04-07 | 2015-04-07 | Sampling protective device in power amplifier module debugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201436.7U CN204481770U (en) | 2015-04-07 | 2015-04-07 | Sampling protective device in power amplifier module debugging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204481770U true CN204481770U (en) | 2015-07-15 |
Family
ID=53637541
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520201436.7U Active CN204481770U (en) | 2015-04-07 | 2015-04-07 | Sampling protective device in power amplifier module debugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204481770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026813A (en) * | 2018-10-22 | 2018-12-18 | 中车洛阳机车有限公司 | Electric locomotive breeze fan test tool equipment |
| CN109743030A (en) * | 2018-12-28 | 2019-05-10 | 京信通信系统（中国）有限公司 | A kind of power amplifier debugging system and method |
-
2015
- 2015-04-07 CN CN201520201436.7U patent/CN204481770U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026813A (en) * | 2018-10-22 | 2018-12-18 | 中车洛阳机车有限公司 | Electric locomotive breeze fan test tool equipment |
| CN109026813B (en) * | 2018-10-22 | 2024-05-17 | 中车洛阳机车有限公司 | Electric locomotive air supply fan test tool equipment |
| CN109743030A (en) * | 2018-12-28 | 2019-05-10 | 京信通信系统（中国）有限公司 | A kind of power amplifier debugging system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |