CN204177965U - With the Big Dipper emission power amplifier of wide dynamic ALC controlling functions - Google Patents
With the Big Dipper emission power amplifier of wide dynamic ALC controlling functions Download PDFInfo
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- CN204177965U CN204177965U CN201420586941.3U CN201420586941U CN204177965U CN 204177965 U CN204177965 U CN 204177965U CN 201420586941 U CN201420586941 U CN 201420586941U CN 204177965 U CN204177965 U CN 204177965U
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Abstract
The utility model discloses a kind of Big Dipper emission power amplifier with wide dynamic ALC controlling functions, comprise coupling mechanism, root mean square detector, two-way operational amplifier, two-way numerical-control attenuator, wherein input signal exports after the decay of two-way numerical-control attenuator, the signal exported sends into two-way operational amplifier after coupling mechanism coupling, amplify through two-way operational amplifier, coupled signal after amplification is through root mean square detector detection, form the feedback input end that feedback signal sends into two-way numerical-control attenuator, control the damping capacity of two-way numerical-control attenuator; Shared step by step in multistage amplifier circuit by signal fluctuation simultaneously, make stable output signal, dynamic response degree is good, and when (-5 ~+15dBm's input signal) fluctuates on a large scale, stable output, output signal controls within the scope of ± 0.5dBm.
Description
Technical field
The utility model relates to satellite navigation communication technical field, particularly a kind of Big Dipper emission power amplifier be applied to wide dynamic ALC controlling functions in Beidou satellite navigation and positioning system.
Background technology
For the testing requirement of power signal emission coefficient in Beidou satellite navigation field, when the Big Dipper emission power amplifier of original model transmits, along with the change of power input or working environment, output power can not keep stable, affects emission function.Even if with ALC function, but dynamic range is inadequate, and under certain conditions, Big Dipper emission power amplifier output power alters a great deal, and dynamic stability is poor.
Utility model content
The utility model technical issues that need to address are to provide that a kind of structure is simple, dynamic stability good, the Big Dipper signal transmission power amplifier of stable output power.
For solving the problem, technical solution adopted in the utility model is:
A kind of Big Dipper emission power amplifier with wide dynamic ALC controlling functions, comprise coupling mechanism, root mean square detector, two-way operational amplifier, two-way numerical-control attenuator, wherein input signal exports after the decay of two-way numerical-control attenuator, the signal exported sends into two-way operational amplifier after coupling mechanism coupling, amplify through two-way operational amplifier, coupled signal after amplification is through root mean square detector detection, form the feedback input end that feedback signal sends into two-way numerical-control attenuator, control the damping capacity of two-way numerical-control attenuator, whole signal flow forms a close-loop feedback and controls.
The utility model further seals in one stage signal amplifying circuit at the signal input part of two-way numerical-control attenuator, seal in three grades of signal amplification circuits successively at the output terminal of numerical-control attenuator simultaneously, input signal fluctuation is dispersed in amplifying circuit at different levels step by step, ensures the stable of signal.
The beneficial effect that produces of technique scheme is adopted to be: output signal is carried out coupling amplification by employing coupling mechanism and after detection process by the utility model, the damping capacity of two-way numerical-control attenuator is controlled as feedback control signal, signal fluctuation is shared step by step in multistage amplifier circuit simultaneously, make stable output signal, dynamic response degree is good, when (-5 ~+15dBm's input signal) fluctuates on a large scale, stable output, output signal controls within the scope of ± 0.5dBm.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 theory diagram;
Fig. 2 is the utility model embodiment 2 theory diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Embodiment 1
As shown in Figure 1, the utility model is primarily of following four partial circuit compositions: coupling mechanism, root mean square detector, two-way operational amplifier, two-way numerical-control attenuator, wherein coupling mechanism obtains feedback control signal for output signal is carried out coupling, the feedback signal that two-way operational amplifier is used for obtaining being coupled carries out amplification process, root mean square detector is used for the feedback signal after by amplification and carries out detection process, obtain final feedback control signal, two-way numerical-control attenuator is used for the signal of input being carried out decay and exports, simultaneously using the parameter signal of feedback signal as control damping capacity, make output signal when input signal fluctuation is larger, still stable output is kept.
Workflow:
Input signal exports after the decay of two-way numerical-control attenuator, the signal exported sends into two-way operational amplifier after coupling mechanism coupling, amplify through two-way operational amplifier, coupled signal after amplification is through root mean square detector detection, form the feedback input end that final feedback signal sends into two-way numerical-control attenuator, control the damping capacity of two-way numerical-control attenuator, whole signal flow forms a close-loop feedback and controls.
Embodiment 2
As shown in Figure 2, the difference of this embodiment and embodiment 1 is, has sealed in one-level amplifying circuit at the signal input part of two-way numerical-control attenuator, makes input signal before decay, first carry out single step of releasing large; The three-stage amplifier of simultaneously connecting successively in the output terminal increase of two-way numerical-control attenuator, the signal exported through attenuator is amplified step by step, signal fluctuation is shared step by step in each amplifying circuit, every grade of amplifying circuit is made all to be in normal operating conditions, not by the impact of input end signal fluctuation.By increasing multistage amplifier circuit, make signal stabilization degree, dynamic response degree strengthens, and signal is more stable, even if input signal exists wide fluctuations, also can keep stable output.
The utility model, when Big Dipper power signal is launched, no longer by the impact that input end signal change and working environment change in dynamic range, stabilizes output power.When input end signal power is in-5 ~+15dBm range, realize auto level control (ALC) function on a large scale, make the change of output power within the scope of ± 0.5dBm, ensure that stable output power.
Claims (2)
1. the Big Dipper emission power amplifier with wide dynamic ALC controlling functions, it is characterized in that: comprise coupling mechanism, root mean square detector, two-way operational amplifier, two-way numerical-control attenuator, wherein the output signal of two-way numerical-control attenuator inputs two-way operational amplifier after coupling mechanism coupling, the output terminal of two-way operational amplifier connects the input end of root mean square detector, and the output terminal of root mean square detector connects the feedback input end of two-way numerical-control attenuator.
2. the Big Dipper emission power amplifier with wide dynamic ALC controlling functions according to claim 1, it is characterized in that arranging one stage signal amplifying circuit at the input end of two-way numerical-control attenuator, three grades of signal amplification circuits are set at the output terminal of numerical-control attenuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586941.3U CN204177965U (en) | 2014-10-11 | 2014-10-11 | With the Big Dipper emission power amplifier of wide dynamic ALC controlling functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586941.3U CN204177965U (en) | 2014-10-11 | 2014-10-11 | With the Big Dipper emission power amplifier of wide dynamic ALC controlling functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204177965U true CN204177965U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420586941.3U Active CN204177965U (en) | 2014-10-11 | 2014-10-11 | With the Big Dipper emission power amplifier of wide dynamic ALC controlling functions |
Country Status (1)
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| CN (1) | CN204177965U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656062A (en) * | 2016-12-06 | 2017-05-10 | 南京华瓯电子科技有限公司 | High-precision automatic power control circuit with temperature compensation |
| CN108965559A (en) * | 2017-05-18 | 2018-12-07 | 展讯通信（上海）有限公司 | Fluctuate calibration method and device |
| WO2021213426A1 (en) * | 2020-04-21 | 2021-10-28 | 中兴通讯股份有限公司 | Automatic level control circuit, signal source, signal source output power control method, and storage medium |
-
2014
- 2014-10-11 CN CN201420586941.3U patent/CN204177965U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656062A (en) * | 2016-12-06 | 2017-05-10 | 南京华瓯电子科技有限公司 | High-precision automatic power control circuit with temperature compensation |
| CN108965559A (en) * | 2017-05-18 | 2018-12-07 | 展讯通信（上海）有限公司 | Fluctuate calibration method and device |
| WO2021213426A1 (en) * | 2020-04-21 | 2021-10-28 | 中兴通讯股份有限公司 | Automatic level control circuit, signal source, signal source output power control method, and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050092 Hebei province Shijiazhuang City Xinshi North Road, No. 368 Building No. 3 West 2 floor West Patentee after: HEBEI JINGHE ELECTRONIC TECHNOLOGY CO., LTD. Address before: 050092 Hebei province Shijiazhuang City Xinshi North Road, No. 368 Building No. 3 West 2 floor West Patentee before: HEBEI JINGHE ELECTRONIC TECHNOLOGY CO., LTD. |