CN204391814U - The power module of satellite communication and the Big Dipper emergency command case with power module - Google Patents
The power module of satellite communication and the Big Dipper emergency command case with power module Download PDFInfo
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- CN204391814U CN204391814U CN201520039272.2U CN201520039272U CN204391814U CN 204391814 U CN204391814 U CN 204391814U CN 201520039272 U CN201520039272 U CN 201520039272U CN 204391814 U CN204391814 U CN 204391814U
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Abstract
The utility model provides a kind of power module of satellite communication, is electrically connected with Beidou satellite communication equipment; It is characterized in that: comprise battery and automatic voltage regulation circuit; Automatic voltage regulation circuit is made up of voltage stabilizing chip and peripheral component; Described battery is electrically connected with the power input of voltage stabilizing chip, and the power output end of voltage stabilizing chip is used for being electrically connected with Beidou satellite communication equipment; Described peripheral component comprises dividing potential drop sampling unit; One end of described dividing potential drop sampling unit is connected with the power output end of voltage stabilizing chip, and the other end of dividing potential drop sampling unit is connected to ground; The sampling end of dividing potential drop sampling unit is connected with the feedback end of voltage stabilizing chip.This power module is easy to carry, and is convenient to outdoor study, effectively can extend stream time.The utility model also provide a kind of with this power module, stream time length, stable work in work, be convenient to the Big Dipper emergency command case of outdoor study.
Description
Technical field
The utility model relates to technical field of satellite communication, more particularly, relates to a kind of power module for Beidou satellite communication and a kind of Big Dipper emergency command case.
Background technology
Beidou satellite navigation system is the region satellite navigation system of China's independent development, and this system covers China whole area and surrounding countries, and whole system is made up of sky satellite, ground control station and three, user application terminal part.User application terminal has location, navigation and the function such as short message data communication, and in location, navigation and the communications field have a wide range of applications.
Current Beidou satellite communication equipment majority adopts alternating current 220V to power, and is unfavorable for being carried to outdoor study, seriously limits the range of application of Beidou satellite communication equipment.Big Dipper emergency command case is a kind of equipment more special in Beidou satellite communication equipment.It is except the basic function such as location application, short message application that power condition detects, RD communicates that can realize a Big Dipper plain edition subscriber computer, also possess location, the communication information that its subordinate's subscriber computer received by prison, and this kind of specific function of command information can be broadcast to subordinate's subscriber computer is logical.Big Dipper emergency command case comprises intelligent control host, display, Beidou satellite communication device usually.
In the Big Dipper emergency command case of routine, Big Dipper RD communicator is the key equipment that direct radio communication contact occurs for package unit and Beidou satellite system.Due to the particularity that Beidou satellite system design is set up, satellite is at about 35000 kilometers, the orbital distance earth sphere of space space motion, digital radio communication adopts CDMA (Code Division Multiple Access) scheme, and launch carrier center frequency and drop on 1616MHz, reception carrier center frequency point drops on 2492MHz.For ensureing the validity transmitted, reduce the error rate being transmitted radio wave by ground based terminal to satellite, General Requirements T-time signal radiant power reaches 10W.According to radio transition equipment universal design rule, the efficiency conversion proportion of wired power consumption and radio transmitted power is approximately 3:1, therefore needs Big Dipper RD communicator must meet the wired power consumption input of 30W in the T-time, can ensure 10W radio transmitted power.According to rating formula P=U*I, under direct current 12V powers environment, comprise the loss of power supply circuits, required emission current will reach 3A.In view of above feature, be usually equipped with the higher inverter of output capacity in actual applications, usual index parameter is: export direct current 12V, maximum output current 3.5A.
The structured flowchart of conventional Big Dipper emergency command case as shown in Figure 1, adopts alternating current 220V export and pass through inverter power supply.Because the Big Dipper emergency command case of routine needs to depend on AC power, therefore away from main frame building, can not seriously constrain the development in the open air application of Big Dipper emergency command case and popularization.It is adopt battery directly to power that present stage has Big Dipper emergency command case to power, but battery electric quantity loss is fast, and stream time is short, needs frequently to change, and is not easy to use; Big Dipper RD communicator, in the immediate current comparatively ambassador's supply power voltage drop that transmits, easily causes main control system to be shut down due to input undervoltage; Be unfavorable for stability and the reliability of raising work.
Utility model content
The purpose of this utility model is to overcome shortcoming of the prior art with not enough, the power module providing a kind of satellite communication to use, be easy to carry, be convenient to outdoor study, effectively can extend stream time.The utility model also provide a kind of with this power module, stream time length, stable work in work, be convenient to the Big Dipper emergency command case of outdoor study.
In order to achieve the above object, the utility model is achieved by following technical proposals: a kind of power module of satellite communication, is electrically connected with Beidou satellite communication equipment; It is characterized in that: comprise battery and automatic voltage regulation circuit; Automatic voltage regulation circuit is made up of voltage stabilizing chip and peripheral component; Described battery is electrically connected with the power input of voltage stabilizing chip, and the power output end of voltage stabilizing chip is used for being electrically connected with Beidou satellite communication equipment; Described peripheral component comprises dividing potential drop sampling unit; One end of described dividing potential drop sampling unit is connected with the power output end of voltage stabilizing chip, and the other end of dividing potential drop sampling unit is connected to ground; The sampling end of dividing potential drop sampling unit is connected with the feedback end of voltage stabilizing chip.
The utility model power module adopts powered battery, is easy to carry, is convenient to Beidou satellite communication equipment outdoor study.Adopt the output voltage of power module stable output in automatic voltage regulation circuit realiration battery discharge procedure; When cell voltage declines, automatic voltage regulation circuit can lifting output voltage, makes output voltage meet the minimum operating voltage requirement of Beidou satellite communication equipment, effectively extends stream time, improves the convenience of Beidou satellite communication equipment outdoor study further.
Further scheme is: described voltage stabilizing chip refers to that model is the voltage stabilizing chip of XL6009 or XL6010 or XL6011; Described battery is electrically connected with the power input of voltage stabilizing chip and refers to, the power supply anode of battery is electrically connected with the power input of voltage stabilizing chip, and the power supply negative terminal of battery is electrically connected with the ground end of voltage stabilizing chip and is connected to ground respectively; The power output end of voltage stabilizing chip is electrically connected with Beidou satellite communication equipment.
Automatic voltage regulation circuit adopts model to be that the voltage stabilizing chip of XL6009 or XL6010 or XL6011 is as core component; It is a built-in 1.25V reference voltage source, N channel power MOS FET switch pipe, fixed frequency are the oscillator of 400kHz; Sampling end voltage swing according to dividing potential drop sampling unit exports constant output voltage; A series of safeguard measures such as voltage stabilizing built-in chip type single pin feedback control circuit, overvoltage crowbar, frequency compensated circuit, heat shutoff circuit, output short circuit protection current limit circuit, power module is powered stable, power conversion efficiency can reach 94%.This automatic voltage regulation circuit can extend the stream time of power module greatly, solves the problem that battery stream time is short, need frequent replacing.
For improving the job stability of automatic voltage regulation circuit further, described peripheral component also comprises diode D1, electric capacity C1 and transformer L1; Be connected by the elementary of transformer L1 between the power input of described voltage stabilizing chip and the power output end of voltage stabilizing chip; The power output end of described voltage stabilizing chip is connected by electric capacity C1 and diode D1 successively with one end of dividing potential drop sampling unit; Electric capacity C1 is connected with one end of tie point and transformer L1 the level of diode D1; The other end of transformer L1 level is connected to ground; Described diode D1 is connected with Beidou satellite communication equipment with the power supply positive and negative end of the ground end of voltage stabilizing chip respectively as power module with the junction of dividing potential drop sampling unit.
Described dividing potential drop sampling unit is composed in series by resistance R1 and adjustable resistance R2; Adjustable resistance R2 is connected with the power output end of voltage stabilizing chip; Resistance R1 is connected to ground; Described resistance R1 is connected as the feedback end of sampling end with voltage stabilizing chip with the junction of adjustable resistance R2.Adjustable resistance R2 can regulate, to change the size of output voltage, easy to use.
Described automatic voltage regulation circuit distribution is established on circuit boards; Circuit board is arranged in heat dissipation box; Described heat dissipation box surface is provided with fin.Because automatic voltage regulation circuit is often in the operating state of continuous big current, heat condition is serious, and circuit board is arranged in heat dissipation box, can dispel the heat by accentuator plate, improves automatic voltage regulation circuit working degree of stability, effectively extends the useful life of automatic voltage regulation circuit.
Described circuit board is arranged in heat dissipation box and refers to, circuit board is arranged in heat dissipation box, is perfused with heat conduction coagulated silicon colloid between circuit board and heat dissipation box.Heat conduction coagulated silicon colloid can efficiently radiates heat, can not be damaged by available protecting circuit board simultaneously.
For ease of carrying, described battery is connected to form by some lithium batteries.Lithium battery power supply voltage is steady, and capacity is large, and sustainable longevity of service, meets the specific demand of main control system and display outwork.
With a Big Dipper emergency command case for the power module of above-mentioned satellite communication, it is characterized in that: also comprise main control system, display and Big Dipper RD communicator; Described power module is electrically connected with main control system, display and Big Dipper RD communicator respectively.Commander's case adopts this power module to power, and be easy to carry, stream time is long, and stable work in work is convenient to outdoor study, and the range of application of commander's case is widened in civilian outdoor application.
Described power module is two; Described power module is electrically connected with main control system, display and Big Dipper RD communicator respectively and refers to, a power module is electrically connected with main control system and display respectively, and another power supply is electrically connected with Big Dipper RD communicator.
Main control system and independently-powered between display and Big Dipper RD communicator, does not interfere with each other, and improves the stability of supply power voltage and pure property; Big Dipper RD communicator can be avoided to cause more greatly supply power voltage to drop at T-time electric current, cause main control system to be shut down owing to powering under-voltage, improve stability and the reliability of commander's case operation.
Compared with prior art, the utility model tool has the following advantages and beneficial effect:
1, the utility model power module adopts powered battery, is easy to carry, is convenient to Beidou satellite communication equipment outdoor study; Adopt the output voltage of power module stable output in automatic voltage regulation circuit realiration battery discharge procedure; When cell voltage declines, automatic voltage regulation circuit can lifting output voltage, makes output voltage meet the minimum operating voltage requirement of Beidou satellite communication equipment, effectively extends stream time, improves the convenience of Beidou satellite communication equipment outdoor study further;
2, the automatic voltage regulation circuit working of the utility model power module is stable, reliable; Greatly can extend the stream time of power module;
3, the utility model power module can efficiently radiates heat, improves automatic voltage regulation circuit working degree of stability, effectively extends the useful life of automatic voltage regulation circuit;
4, the utility model Big Dipper emergency command case, be easy to carry, stream time is long, and stable work in work is convenient to outdoor study, and range of application is widened in civilian outdoor application; Main control system and independently-powered between display and Big Dipper RD communicator, does not interfere with each other, and improves stability and reliability that commander's case runs.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of existing Big Dipper emergency command case;
Fig. 2 is the circuit diagram of the utility model power module;
Fig. 3 is the structured flowchart of the utility model Big Dipper emergency command case.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment one
The present embodiment describes a kind of power module, and for powering to Beidou satellite communication equipment, its circuit diagram as shown in Figure 2.Power module comprises battery and automatic voltage regulation circuit; Automatic voltage regulation circuit is made up of voltage stabilizing chip and peripheral component; Battery is electrically connected with the power input of voltage stabilizing chip, and the power output end of voltage stabilizing chip is used for being electrically connected with Beidou satellite communication equipment.Battery is connected to form by some lithium batteries, can be composed in series by some lithium batteries, also can be to be divided into groups to compose in parallel after series connection by some lithium batteries.Lithium battery is easy to carry, and supply power voltage is steady, and capacity is large, and sustainable longevity of service, meets the specific demand of Beidou satellite communication equipment outwork.
Adopt powered battery, be easy to carry, be convenient to Beidou satellite communication equipment outdoor study.Adopt the output voltage of power module stable output in automatic voltage regulation circuit realiration battery discharge procedure; When cell voltage declines, automatic voltage regulation circuit can lifting output voltage, makes output voltage meet the minimum operating voltage requirement of Beidou satellite communication equipment, effectively extends stream time, improves the convenience of Beidou satellite communication equipment outdoor study further.
The specification of the lithium battery of the present embodiment can select the type that internal material take lithium metal as negative pole, just very iron lithium phosphate (LiFePO4), monomer outline packages is 18650 column types, monomer voltage 3.6V.This is one of the most stable battery variety of operating voltage, is also current unit volume (quality) battery that capacity is the highest.
For improving the job stability of power module further, voltage stabilizing chip refers to that model is the voltage stabilizing chip of XL6009.Automatic voltage regulation circuit adopts model to be that the voltage stabilizing chip of XL6009 or XL6010 or XL6011 is as core component; It is a built-in 1.25V reference voltage source, N channel power MOS FET switch pipe, fixed frequency are the oscillator of 400kHz, allows input wide region, the DC/DC converter of the current working mode that PWM pulsewidth is automatically adjustable.By different circuit forms, the output voltage of plus or minus can be produced.Adaptive input voltage 5V to 32V, adjustable output voltage 4V to 24V, most High Output Current 4A.Sampling end voltage swing according to dividing potential drop sampling unit exports constant output voltage; A series of safeguard measures such as voltage stabilizing built-in chip type single pin feedback control circuit, overvoltage crowbar, frequency compensated circuit, heat shutoff circuit, output short circuit protection current limit circuit, power module is powered stable, power conversion efficiency can reach 94%.This automatic voltage regulation circuit can extend the stream time of power module greatly, solves the problem that battery stream time is short, need frequent replacing.
Peripheral component comprises dividing potential drop sampling unit, diode D1, electric capacity C1 and transformer L1.The power supply anode of battery is electrically connected with the power input of voltage stabilizing chip, and the power supply negative terminal of battery is electrically connected with the ground end of voltage stabilizing chip and is connected to ground respectively.Be connected by the elementary of transformer L1 between the power input of voltage stabilizing chip and the power output end of voltage stabilizing chip; The power output end of voltage stabilizing chip is connected by electric capacity C1 and diode D1 successively with one end of dividing potential drop sampling unit; Electric capacity C1 is connected with one end of tie point and transformer L1 the level of diode D1; The other end of transformer L1 level is connected to ground; Diode D1 is connected with Beidou satellite communication equipment with the power supply positive and negative end of the ground end of voltage stabilizing chip respectively as power module with the junction of dividing potential drop sampling unit.
Dividing potential drop sampling unit is composed in series by resistance R1 and adjustable resistance R2; Adjustable resistance R2 is connected with the power output end of voltage stabilizing chip; Resistance R1 is connected to ground; Described resistance R1 is connected as the feedback end of sampling end with voltage stabilizing chip with the junction of adjustable resistance R2.Adjustable resistance R2 can regulate, to change the size of output voltage, easy to use.
The operation principle of automatic voltage regulation circuit is: feedback end FB measures output voltage sampling by resistance R1, resistance R2, realizes the feedback signal input of voltage compare pattern; Pass through the links such as input cushions, reference voltage compares, the driving of pulse width modulation, switching tube, current-limiting protection successively, finally realize the work of NDMOS pipe.The Enable Pin EN of voltage stabilizing chip controls the operating state of voltage stabilizing chip, and Enable Pin EN current potential is high level (more than 1.4V) or unsettled, voltage stabilizing chip enable; Enable Pin EN pin current potential is low level (below 0.8V), and voltage stabilizing chip quits work to turn off and exports.
Pressure sampling circuit is built between power output end SW and feedback end FB.Change the proportionate relationship of resistance R2 and resistance R1, the size of adjustable output voltage.The size of output voltage is VOUT=1.25* (1+R2/R1).
Automatic voltage regulation circuit distribution is established on circuit boards.Because automatic voltage regulation circuit is often in the operating state of continuous big current, heat condition is serious.Therefore circuit board is arranged in heat dissipation box, and heat dissipation box surface is provided with fin; Can dispel the heat by accentuator plate, improve automatic voltage regulation circuit working degree of stability, effectively extend the useful life of automatic voltage regulation circuit.Heat conduction coagulated silicon colloid is perfused with between circuit board and heat dissipation box.Heat conduction coagulated silicon colloid can efficiently radiates heat, can not be damaged by available protecting circuit board simultaneously.
Following two kinds of power supply plans are applied in Big Dipper emergency command case and carry out test and comparison: scheme one is for directly to adopt powered battery; Scheme two is powered for adopting the present embodiment power module.
During direct employing battery, be that the main control system of commander's case, display and Big Dipper RD communicator are powered by three lithium battery series connection; Under the condition of constant current load, after work about 0.5 hour, electric quantity of lithium battery residue 95%, single lithium battery voltage is 3.8V, and the voltage after three lithium battery series connection is 11.4V; Now can not meet the requirement of minimum operating voltage 11.5V, Big Dipper emergency command case complete machine quits work, and therefore can not meet the actual demand worked for a long time.
And being provided with automatic voltage regulation circuit as power module in the present embodiment, the Main Function of automatic voltage regulation circuit is by high-frequency switch circuit lifting output voltage, keeps output voltage stabilization, ensure that the stable of output voltage.After work about 7.5 hours, electric quantity of lithium battery residue 25%, single lithium battery voltage is 3.5V, and the voltage after three lithium battery series connection is 10.5V; And automatic voltage regulation circuit is raised to 12V output voltage, now still can meet the requirement of the minimum supply power voltage 11.5V of main control system and Big Dipper RD communicator, Big Dipper emergency command case complete machine continues to keep normal operating conditions.On the whole, the stream time of complete machine is extended.
Embodiment two
The present embodiment describes a kind of Big Dipper emergency command case, and its structured flowchart as shown in Figure 3.Commander's case comprises two power modules as described in embodiment one, and main control system, display and Big Dipper RD communicator.A power module is electrically connected with main control system and display respectively; Another power supply is electrically connected with Big Dipper RD communicator, as shown in Figure 3.
Commander's case adopts this power module to power, and be easy to carry, stream time is long, and stable work in work is convenient to outdoor study, and the range of application of commander's case is widened in civilian outdoor application.Main control system and independently-powered between display and Big Dipper RD communicator, does not interfere with each other, and improves the stability of supply power voltage and pure property; Big Dipper RD communicator can be avoided to cause more greatly supply power voltage to drop at T-time electric current, cause main control system to be shut down owing to powering under-voltage, improve stability and the reliability of commander's case operation.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
Claims (9)
1. a power module for satellite communication, is electrically connected with Beidou satellite communication equipment; It is characterized in that: comprise battery and automatic voltage regulation circuit; Automatic voltage regulation circuit is made up of voltage stabilizing chip and peripheral component; Described battery is electrically connected with the power input of voltage stabilizing chip, and the power output end of voltage stabilizing chip is used for being electrically connected with Beidou satellite communication equipment; Described peripheral component comprises dividing potential drop sampling unit; One end of described dividing potential drop sampling unit is connected with the power output end of voltage stabilizing chip, and the other end of dividing potential drop sampling unit is connected to ground; The sampling end of dividing potential drop sampling unit is connected with the feedback end of voltage stabilizing chip.
2. the power module of satellite communication according to claim 1, is characterized in that: described voltage stabilizing chip refers to that model is the voltage stabilizing chip of XL6009 or XL6010 or XL6011; Described battery is electrically connected with the power input of voltage stabilizing chip and refers to, the power supply anode of battery is electrically connected with the power input of voltage stabilizing chip, and the power supply negative terminal of battery is electrically connected with the ground end of voltage stabilizing chip and is connected to ground respectively; The power output end of voltage stabilizing chip is electrically connected with Beidou satellite communication equipment.
3. the power module of satellite communication according to claim 2, is characterized in that: described peripheral component also comprises diode D1, electric capacity C1 and transformer L1; Be connected by the elementary of transformer L1 between the power input of described voltage stabilizing chip and the power output end of voltage stabilizing chip; The power output end of described voltage stabilizing chip is connected by electric capacity C1 and diode D1 successively with one end of dividing potential drop sampling unit; Electric capacity C1 is connected with one end of tie point and transformer L1 the level of diode D1; The other end of transformer L1 level is connected to ground; Described diode D1 is connected with Beidou satellite communication equipment with the power supply positive and negative end of the ground end of voltage stabilizing chip respectively as power module with the junction of dividing potential drop sampling unit.
4. the power module of satellite communication according to claim 2, is characterized in that: described dividing potential drop sampling unit is composed in series by resistance R1 and adjustable resistance R2; Adjustable resistance R2 is connected with the power output end of voltage stabilizing chip; Resistance R1 is connected to ground; Described resistance R1 is connected as the feedback end of sampling end with voltage stabilizing chip with the junction of adjustable resistance R2.
5. the power module of satellite communication according to claim 1, is characterized in that: described automatic voltage regulation circuit distribution is established on circuit boards; Circuit board is arranged in heat dissipation box; Described heat dissipation box surface is provided with fin.
6. the power module of satellite communication according to claim 5, is characterized in that: described circuit board is arranged in heat dissipation box and refers to, circuit board is arranged in heat dissipation box, is perfused with heat conduction coagulated silicon colloid between circuit board and heat dissipation box.
7. the power module of satellite communication according to claim 1, is characterized in that: described battery is connected to form by some lithium batteries.
8. with a Big Dipper emergency command case for the power module of the satellite communication according to any one of claim 1 to 7, it is characterized in that: also comprise main control system, display and Big Dipper RD communicator; Described power module is electrically connected with main control system, display and Big Dipper RD communicator respectively.
9. Big Dipper emergency command case according to claim 8, is characterized in that: described power module is two; Described power module is electrically connected with main control system, display and Big Dipper RD communicator respectively and refers to, a power module is electrically connected with main control system and display respectively, and another power supply is electrically connected with Big Dipper RD communicator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039272.2U CN204391814U (en) | 2015-01-20 | 2015-01-20 | The power module of satellite communication and the Big Dipper emergency command case with power module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520039272.2U CN204391814U (en) | 2015-01-20 | 2015-01-20 | The power module of satellite communication and the Big Dipper emergency command case with power module |
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| CN204391814U true CN204391814U (en) | 2015-06-10 |
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| CN201520039272.2U Expired - Fee Related CN204391814U (en) | 2015-01-20 | 2015-01-20 | The power module of satellite communication and the Big Dipper emergency command case with power module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880719A (en) * | 2015-06-12 | 2015-09-02 | 赵柯 | Beidou terminal utilizing artificial charging |
| CN108306416A (en) * | 2018-03-07 | 2018-07-20 | 湖北三江航天红林探控有限公司 | Spaceborne power supply control device |
-
2015
- 2015-01-20 CN CN201520039272.2U patent/CN204391814U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880719A (en) * | 2015-06-12 | 2015-09-02 | 赵柯 | Beidou terminal utilizing artificial charging |
| CN108306416A (en) * | 2018-03-07 | 2018-07-20 | 湖北三江航天红林探控有限公司 | Spaceborne power supply control device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20220120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |