CN106159907A - A kind of over-current protection method of high-power transmitter - Google Patents
A kind of over-current protection method of high-power transmitter Download PDFInfo
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- CN106159907A CN106159907A CN201510175802.0A CN201510175802A CN106159907A CN 106159907 A CN106159907 A CN 106159907A CN 201510175802 A CN201510175802 A CN 201510175802A CN 106159907 A CN106159907 A CN 106159907A
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Abstract
The invention relates to the over-current protection method of a kind of high-power transmitter; it is when over current fault occurs in emitter, send, by software, the power supply that emitter is cut off in instruction, therefore can shorten the reaction time; for about 10us, reach the effect to emitter real-time guard；And terminate at the over-current state of emitter, it when i.e. recovering normal condition, is progressively raised slowly to the state needing by the power of software control emitter, thus reduces the impact to emitter, reach to protect the purpose of emitter.The over-current protection method of the high-power transmitter of the present invention can also make emitter take into account and complete requirement of both broadcast and equipment safety simultaneously.
Description
Technical field
The present invention relates to a kind of over-current protection method, particularly relate to a kind of for guarantor real-time to emitter
The over-current protection method of the high-power transmitter protecting.
Background technology
The over-current protection method of emitter now used, mainly uses the principle of hardware circuit.That is,
During the fault that is short-circuited in electrical network, electric current can increase suddenly, and voltage declines suddenly, and overcurrent protection is exactly
By the requirement of route choosing, the action current of setting current relay.When in circuit, fault current reaches
During to the working value of electric current relay, electric current relay action, by protection device optionally requirement, has
Selective disengagement failure circuit.The reaction time of this hardware protection method is longer, it usually needs 50us
Left and right, and the time is longer, the impact on emitter is also more serious.In addition, this hardware protection side
Method, when power recovers, is to be directly returned to original high-power, and the impact to emitter is relatively big, shadow
Ring the life-span of emitter.
As can be seen here, the over-current protection method of above-mentioned existing emitter has obviously still suffered from inconvenience and has lacked
Fall into, and be urgently further improved.
Content of the invention
It is an object of the invention to, overcome the defect that the over-current protection method of existing emitter exists,
And the over-current protection method of a kind of new high-power transmitter is provided, to be solved technical problem is that makes
It is when overcurrent condition occurs in emitter, realizes the real-time guard to emitter by software, shortens anti-
Between Ying Shi, use, on power recovers, the measure slowly rising, reduce the impact to emitter, protection
Emitter.
The object of the invention to solve the technical problems realizes by the following technical solutions.Foundation
The over-current protection method of a kind of high-power transmitter that the present invention proposes, it comprises the following steps: sending out
When over current fault occurs in the machine of penetrating, send, by software, the power supply that emitter is cut off in instruction；And launching
It at the end of the over-current state of machine, is progressively raised slowly to needs by the power of software control emitter
State.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
, wherein there is over current fault at emitter in the over-current protection method of aforesaid high-power transmitter
When, when occurred cross stream number of times within the specific limits when, emitter persistently broadcasts；When occurred
Cross stream number of times when exceeding this scope, send, by software, the power supply that emitter is cut off in instruction.
The over-current protection method of aforesaid high-power transmitter, it also includes: in the range of certain time,
When stream number of times reaches the first numerical value excessively of emitter appearance, reduce the power of emitter；Work as emitter
When stream number of times reaches second value excessively of appearance, zero lock emitter；Wherein the first numerical value is less than the second number
Value.
The over-current protection method of aforesaid high-power transmitter, wherein in the range of certain time, when send out
Penetrate when stream number of times is three times excessively of machine appearance, reduce the power of emitter；Cross stream when what emitter occurred
When number of times is six times, zero lock emitter.
The over-current protection method of aforesaid high-power transmitter, it also includes: in the range of certain time,
When stream number of times reaches third value excessively of emitter appearance, zero lock emitter.
The over-current protection method of aforesaid high-power transmitter, wherein in the range of certain time, when send out
Penetrate when stream number of times is three times excessively of machine appearance, zero lock emitter.
The present invention compared with prior art has clear advantage and beneficial effect.By above-mentioned technical side
Case, the over-current protection method of a kind of high-power transmitter of the present invention at least has following advantages and beneficial effect
Really: the over-current protection method of the present invention when there is overcurrent condition in emitter, by software realize to send out
Penetrate the real-time guard of machine, shorten the reaction time, and can take into account and complete broadcast and equipment safety two
The requirement of aspect, uses, on power recovers, the measure slowly rising, decreases the impact to emitter,
Protect emitter.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the present invention's
Technological means, and can being practiced according to the content of specification, and in order to allow the above-mentioned of the present invention and
Other objects, features and advantages can become apparent, and below especially exemplified by preferred embodiment, and coordinates attached
Figure, describes in detail as follows.
Brief description
Fig. 1 is the soft of a preferred embodiment of the over-current protection method of a kind of high-power transmitter of the present invention
The flow chart that part is implemented.
Detailed description of the invention
By further illustrating the technological means and work(that the present invention taked by reaching predetermined goal of the invention
Effect, below in conjunction with accompanying drawing and preferred embodiment, to a kind of high-power transmitter proposing according to the present invention
Its detailed description of the invention of over-current protection method, method, step, feature and effect thereof, describe in detail such as
After.
The over-current protection method of the high-power transmitter of the present invention is when over current fault occurs in emitter, logical
Cross software and send the power supply that emitter is cut off in instruction, therefore can shorten the reaction time, be about 10us,
Reach the effect to emitter real-time guard；And terminate at the over-current state of emitter, i.e. recover normal
It during state, is progressively raised slowly to the state needing by the power of software control emitter, thus subtracts
Few impact to emitter, reaches to protect the purpose of emitter.Wherein, the IGBT when emitter full power
Module is 42, and making the power of emitter progressively slowly increase is to control emitter work(by software instruction
Rate starts to open 5 IGBT module every time from 0 state, opens IGBT module continuously by several times until reaching
To the power rating needing.
The over-current protection method of the high-power transmitter of the present invention is followed " under Kuai not only through making emitter
On Huan " principle real-time guard is carried out to emitter, can also make emitter take into account complete broadcast and
Require of both equipment safety.Wherein, when over current fault occurs in emitter, when the mistake being occurred
Stream number of times within the specific limits when, emitter can persistently broadcast, such that it is able to after sign-off again
Go to repair fault；And when the mistake stream number of times being occurred exceedes this scope, then send instruction by software
Cut off the power supply of emitter.
In the range of certain time, if often there is stream in emitter, the high-power transmitting of the present invention
The over-current protection method of machine also can play the work of protection emitter by reducing the power of emitter
With.Wherein, in the range of certain time, for high-power emitter, when the mistake that emitter occurs
When stream number of times reaches the first numerical value, reduce the power of emitter；The stream number of times of crossing occurring when emitter reaches
During to second value, zero lock emitter；Wherein the first numerical value is less than second value；And for low work(
Rate emitter, when when stream number of times reaches third value excessively of emitter appearance, zero lock emitter.
In a preferred embodiment of the present invention, in the range of certain effective time, the present invention's is big
The over-current protection method of power transmitter can make the changed power of emitter follow following rule: launches
When machine is high power, " three lower low-power, six times zero locks "；When emitter is low-power, " three times just
Zero lock " (number of times herein is the number of times that stream occurred).That is, in the range of certain effective time,
When emitter is high power, what emitter occurred crosses stream number of times is three times, then reduce the work(of emitter
Rate；What emitter occurred crosses stream number of times is six times, then zero lock emitter；When emitter is low-power,
What emitter occurred crosses stream number of times is three times, with regard to zero lock emitter.Wherein, " high power " and " low work(
Rate " is to be conferred determination, " low work(by software designer and emitter commissioning staff according to transmitter state
Rate " refers to the power in 0～350kw scope, and " high power " refers in 350kw～500kw scope
Power, " zero lock " refers to, by sending software instruction, transmitter power be reduced to 0.The invention described above
High-power transmitter over-current protection method a preferred embodiment software implement flow chart as figure
Shown in 1.
The above, be only presently preferred embodiments of the present invention, not makees any form to the present invention
On restriction, although the present invention is disclosed above with preferred embodiment, but is not limited to this
Bright, any those skilled in the art, in the range of without departing from technical solution of the present invention, when can profit
Make a little Equivalent embodiments changing or be modified to equivalent variations with the technology contents of the disclosure above, but
Every without departing from technical solution of the present invention content, the technical spirit of the foundation present invention is to above example institute
Any simple modification, equivalent variations and the modification made, in the range of all still falling within technical solution of the present invention.
Claims (6)
1. the over-current protection method of a high-power transmitter, it is characterised in that it comprises the following steps:
When over current fault occurs in emitter, send, by software, the power supply that emitter is cut off in instruction；With
And
At the end of the over-current state of emitter, by the power of software control emitter progressively slowly on
Rise to the state needing.
2. the over-current protection method of high-power transmitter according to claim 1, it is characterised in that
Wherein when over current fault occurs in emitter, when occurred cross stream number of times within the specific limits when, send out
Machine of penetrating persistently broadcasts；When the mistake stream number of times being occurred exceedes this scope, send instruction by software and cut
The power supply of disconnected emitter.
3. the over-current protection method of high-power transmitter according to claim 1, it is characterised in that
It also includes: in the range of certain time, when when stream number of times reaches the first numerical value excessively of emitter appearance,
Reduce the power of emitter；When stream number of times reaches second value excessively of emitter appearance, zero lock is launched
Machine；Wherein the first numerical value is less than second value.
4. the over-current protection method of high-power transmitter according to claim 3, it is characterised in that
Wherein in the range of certain time, when when stream number of times is three times excessively of emitter appearance, reduce emitter
Power；When stream number of times is six times excessively of emitter appearance, zero lock emitter.
5. the over-current protection method of high-power transmitter according to claim 1, it is characterised in that
It also includes: in the range of certain time, when when stream number of times reaches third value excessively of emitter appearance,
Zero lock emitter.
6. the over-current protection method of high-power transmitter according to claim 5, it is characterised in that
Wherein in the range of certain time, when when stream number of times is three times excessively of emitter appearance, zero lock emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175802.0A CN106159907A (en) | 2015-04-14 | 2015-04-14 | A kind of over-current protection method of high-power transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175802.0A CN106159907A (en) | 2015-04-14 | 2015-04-14 | A kind of over-current protection method of high-power transmitter |
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| Publication Number | Publication Date |
|---|---|
| CN106159907A true CN106159907A (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510175802.0A Pending CN106159907A (en) | 2015-04-14 | 2015-04-14 | A kind of over-current protection method of high-power transmitter |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1725672A (en) * | 2004-07-20 | 2006-01-25 | 华为技术有限公司 | Analog test method for stability of optical communication equipment system |
| WO2007133474A2 (en) * | 2006-05-08 | 2007-11-22 | Harris Corporation | Multiband radio with transmitter output power optimization |
| CN101808394A (en) * | 2009-02-17 | 2010-08-18 | 展讯通信（上海）有限公司 | Method for improving signal-to-noise ratio of TD-SCDMA terminal transmission signal |
| CN103166651A (en) * | 2011-11-10 | 2013-06-19 | 北京北广科技股份有限公司 | Power control device of transmitter digital modulator |
-
2015
- 2015-04-14 CN CN201510175802.0A patent/CN106159907A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1725672A (en) * | 2004-07-20 | 2006-01-25 | 华为技术有限公司 | Analog test method for stability of optical communication equipment system |
| WO2007133474A2 (en) * | 2006-05-08 | 2007-11-22 | Harris Corporation | Multiband radio with transmitter output power optimization |
| CN101808394A (en) * | 2009-02-17 | 2010-08-18 | 展讯通信（上海）有限公司 | Method for improving signal-to-noise ratio of TD-SCDMA terminal transmission signal |
| CN103166651A (en) * | 2011-11-10 | 2013-06-19 | 北京北广科技股份有限公司 | Power control device of transmitter digital modulator |
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Application publication date: 20161123 |