CN103107718B - Control circuit of energy discharging of large magnetic moment magnetorquer - Google Patents
Control circuit of energy discharging of large magnetic moment magnetorquer Download PDFInfo
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- CN103107718B CN103107718B CN201210501424.7A CN201210501424A CN103107718B CN 103107718 B CN103107718 B CN 103107718B CN 201210501424 A CN201210501424 A CN 201210501424A CN 103107718 B CN103107718 B CN 103107718B
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Abstract
The invention provides a control circuit of energy discharging of a large magnetic moment magnetorquer which comprises a macro-energy independent discharging circuit and an H-bridge drive circuit. When the H-bridge drive circuit is reversed, the macro-energy independent discharging circuit is adopted, and the macro-energy independent discharging circuit transfers most of energy on a magnetorquer body to a power component in the discharging circuit, so that the purpose of the energy discharging is achieved. Under other working states, the H-bridge drive circuit is utilized to discharge the energy of the magnetorquer, power tubes and diodes in the H-bridge circuit and the magnetorquor body are utilized to form a break-over return circuit, and the energy of the magnetorquer body is gradually discharged. The control circuit is simple and reliable in structure, low in power consumption, long in service life, wide in application range, and capable of satisfying requirements of the energy discharging of magnetorquer bodies with different standards.
Description
Technical field
The present invention relates to the control method that a kind of energy is released, particularly a kind of control method being applicable to large magnetic moment magnetic torquer energy and releasing.
Background technology
Magnetic torquer is one of execution unit of spacecraft, provides the drive circuit of specific exciting curent to form, be widely used in Spacecraft Attitude Control by magnetic torquer body with for it.The magnetic torquer used in the world at present exports magnetic moment and is generally 5 ~ 1000Am
2, the magnetic torquer that domestic spacecraft uses exports magnetic moment usually at 25 ~ 400Am
2.Current China builds spacelab, the spacecraft developed is all very huge in volume and weight, the requirement of attitude maneuver ability and momentum discharge is all very high, causes requirement magnetic torquer being exported to magnetic moment also very high, develops for this reason and export magnetic moment at 1500 ~ 2000Am
2magnetic torquer product.
Current magnetic torquer energy control circuit of releasing is each driving tube two ends inverse parallel diode respectively in major loop, when drive circuit turns off, is released on power supply by the energy of this diode by magnetic torquer.But magnetic torquer body has inductance characteristic, when output magnetic moment hour, its inductance value is also little; When output magnetic moment significantly increases, its inductance value also will significantly increase.Current magnetic torquer energy release control circuit can only be applied to export magnetic moment at 25 ~ 400Am
2magnetic torquer product because its inductance value is little, release in process what carry out energy, energy by the capacitive absorption between VDD-to-VSS line, and can not impact supply voltage.And the inductance value of large magnetic moment magnetic torquer is about tens H, maximum exciting curent is hundreds of mA, when energy is released, if still adopt current magnetic torquer energy to release control circuit, the phenomenon that exciting curent charges to supply voltage will be produced, cause supply voltage to raise, under worst case, supply voltage can be increased to 4 ~ 5 times of nominal voltage, the operating voltage of the device be connected with power supply in drive circuit is significantly raised, causes device failure.Therefore prior art can not meet the control overflow that large magnetic moment magnetic torquer energy is released.
Summary of the invention
Technology of the present invention is dealt with problems: overcome prior art deficiency, proposes a kind of control circuit that can be applicable to large magnetic moment magnetic torquer energy and release.
Technical solution of the present invention is: a kind of large magnetic moment magnetic torquer energy is released control circuit, comprises the independent leadage circuit of macro-energy and H-bridge drive circuit; The independent leadage circuit of macro-energy comprises diode D5, PNP type triode Q5, NPN type triode Q6, resistance R1, resistance R2, resistance R3, resistance R4; Power end is connected to the anode of diode D5 and one end of resistance R1 as the input of the independent leadage circuit of macro-energy simultaneously, and the other end of resistance R1 is connected to the base stage of triode Q5; The negative terminal of diode D5 is connected to the emitter of triode Q5 and the common port of resistance R2, and the other end of resistance R2 is connected to the collector electrode of triode Q6; The collector electrode of triode Q5 is connected to one end of resistance R3, and the other end of resistance R3 is connected to one end of resistance R4, and the other end of resistance R4 is connected to the emitter of triode Q6; The base stage of triode Q6 is connected to the common port of resistance R3 and resistance R4, and the emitter of triode Q6 and the common port of resistance R4 are as the output head grounding of leadage circuit; H-bridge drive circuit comprises NPN type triode Q1, NPN type triode Q2, NPN type triode Q3, NPN type triode Q4, diode D1, diode D2, diode D3, diode D4; The negative terminal of diode D5 is connected to the common port of the negative terminal of the collector electrode of triode Q1, the collector electrode of triode Q3, the negative terminal of diode D1 and diode D3 as the input of H-bridge drive circuit; The base stage of triode Q1, the base stage of triode Q2, the base stage of triode Q3, the base stage of triode Q4, as other 4 inputs of H-bridge drive circuit, distinguish external logic control signal q1, logic control signal q2, logic control signal q3, logic control signal q4; The anode of the emitter of triode Q2, the emitter of triode Q4, diode D2 and the anode of diode D4 earth connection simultaneously; The emitter of triode Q1, the collector electrode of triode Q2, the anode of diode D1 and the negative terminal of diode D2 are connected to the exit a of magnetic torquer body simultaneously; The emitter of triode Q3, the collector electrode of triode Q4, the anode of diode D3 and the negative terminal of diode D4 are connected to the exit b of magnetic torquer body simultaneously; During the work of H-bridge drive circuit forward, adopt H-bridge drive circuit to carry out energy and release, logic control signal q1 is in pulse-width modulation state, and logic control signal q4 is in high level state, and logic control signal q2 and logic control signal q3 is in low level state; During the work of H-bridge drive circuit negative sense, adopt H-bridge drive circuit to carry out energy and release, logic control signal q3 is in pulse-width modulation state, and logic control signal q2 is in high level state, and logic control signal q1 and logic control signal q4 is in low level state; During H-bridge drive circuit experience transition period, adopt the independent leadage circuit of macro-energy to carry out energy and release, logic control signal q1, logic control signal q2, logic control signal q3 and logic control signal q4 are in low level state; The period that described transition period experiences in work conversion work process for H-bridge drive circuit is positive and negative.
The present invention compared with prior art has the following advantages:
(1) the present invention adopts the independent leadage circuit of macro-energy, solves the problem that large magnetic moment magnetic torquer charges to supply voltage.And this circuit is only made up of triode and resistance, circuit structure is simple and reliable; Utilize the on state characteristic of triode, can be released by the energy of magnetic torquer body rapidly, the scope of application is wider, can meet the requirement that different size magnetic torquer body energy is released.
(2) the present invention adopts diode by supply voltage and the isolation of energy leadage circuit, makes electric current on power line can only one-way conduction, avoids magnetic torquer energy to release and to have an impact to it, play a protective role.
(3) a pair triode worked in H-bridge drive circuit of the present invention, the triode operation of upper bridge is in pulse-width modulation state, the triode operation of lower bridge is in normally on, H-bridge drive circuit itself can be utilized under normal circumstances to release to magnetic torquer energy, only have when H-bridge drive circuit commutates, the just conducting of the independent leadage circuit of macro-energy.Due to the not long-term work of the independent leadage circuit of macro-energy, the power consumption of circuit can be effectively reduced, improve the useful life of circuit.
Accompanying drawing explanation
Fig. 1 is that energy of the present invention is released control circuit schematic diagram;
Fig. 2 is H-bridge drive circuit logic control signal relation schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 2, in the definition t1 period, H-bridge drive circuit is forward work, in the t2 period, H-bridge drive circuit is negative sense work, so the t2 period is referred to as H-bridge drive circuit commutation relative to the t1 period, t ' the period is the excessive period in H-bridge drive circuit commutation process, and within the t ' period, triode Q1, triode Q2, triode Q3, triode Q4 are in closed condition.That is within the t ' period, just adopt the independent leadage circuit of macro-energy, the independent leadage circuit of other period macro-energy does not work.
The inductance value of large magnetic moment magnetic torquer is very large, and the energy stored during work is also very large, adopts prior art to release to its energy, will cause the phenomenon that the exciting curent of magnetic torquer charges to power supply.For head it off, the present invention proposes a kind of large magnetic moment magnetic torquer energy and to release control circuit, comprise the independent leadage circuit of macro-energy and H-bridge drive circuit.Adopt different circuit to carry out energy according to the difference of magnetic torquer operating state to release.The excessive period only in H-bridge drive circuit commutation process, just adopt the independent leadage circuit of macro-energy, this circuit is by the most of energy trasfer on magnetic torquer body on the power device in leadage circuit, to reach the object that energy is released; Under other operating state, all utilize H-bridge drive circuit itself to release to magnetic torquer energy, utilize power tube in H bridge and diode and magnetic torquer body, form conducting loop, the energy of magnetic torquer body is released gradually.
As shown in Figure 1, the drive circuit of magnetic torquer body adopts the form of H bridge driving, and two exits a, b of magnetic torquer body are connected to two outputs of H-bridge drive circuit respectively.Vcc is two circuit supplies, adds a diode D5, can not cause charging phenomenon when ensureing that magnetic torquer energy is released to power Vcc between Vcc and V+ end.
When experiencing the excessive period in H-bridge drive circuit commutation process, utilize the diode D1 (or D3) in the independent leadage circuit of macro-energy and H-bridge drive circuit and diode D4 (or D2), formed: this of magnetic torquer (or b) end-diode D1 (or D3)-V+-macro-energy independent leadage circuit-ground wire-diode D4 (or D2)-magnetic torquer body b (or a) path of releasing of holding.When the work of H-bridge drive circuit forward or negative sense work, the not conducting of the independent leadage circuit of macro-energy, does not also work.The independent leadage circuit of macro-energy comprises diode D5, PNP type triode Q5, NPN type triode Q6 and resistance R1 ~ R4.Power end Vcc is connected to one end of resistance R1 as the input of the independent leadage circuit of macro-energy, and the other end of resistance R1 is connected to the base stage of triode Q5; V+ is connected to the emitter of triode Q5 and the common port of resistance R2 as another input of the independent leadage circuit of macro-energy, and the other end of resistance R2 is connected to the collector electrode of triode Q6; The collector electrode of triode Q5 is connected to resistance R3, and the other end of resistance R3 is connected to resistance R4, and the other end of resistance R4 is connected to the emitter of triode Q6; The base stage of triode Q6 is connected on the common port of resistance R3 and resistance R4, and the emitter of triode Q6 and the common port of resistance R4 are as the output head grounding of leadage circuit; When experiencing the excessive period in H-bridge drive circuit commutation process, the voltage that the back-emf that magnetic torquer body produces will make V+ hold raises, when the magnitude of voltage of V+ end is more than Vcc end 0.7V, Q5 conducting, then Q6 conducting, formed: this of magnetic torquer (or b) end-diode D1 (or D3)-V+-resistance R2-triode Q6-ground wire-diode D4 (or D2)-magnetic torquer body b (energy of magnetic torquer body is released by or a) path of releasing held.
When the work of H-bridge drive circuit forward or negative sense work: utilize the triode Q2 (or Q4) in H-bridge drive circuit and diode D4 (or D2), formed: the path of releasing that magnetic torquer body a (b) end-Q2 (or Q4)-ground wire-D4 (or D2)-magnetic torquer body b (a) is held.H-bridge drive circuit comprises NPN type triode Q1 ~ Q4 and diode D1 ~ D4, and the sequential relationship of four logic control signal q1 ~ q4 of H-bridge drive circuit as shown in Figure 2.The a pair brachium pontis work at Q1 and Q4 place within the t1 period, a pair brachium pontis at Q3 and Q2 place does not work; The a pair brachium pontis work at Q3 and Q2 place within the t2 period, a pair brachium pontis at Q1 and Q4 place does not work.In a pair brachium pontis of work, the triode Q1 (or Q3) of upper brachium pontis is operated in pulse-width modulation state, and the triode Q4 (or Q2) of lower brachium pontis is operated in normally on.Triode on idle a pair brachium pontis is in closed condition all the time.
The non-detailed description of the present invention is known to the skilled person technology.
Claims (1)
1. large magnetic moment magnetic torquer energy is released a control circuit, it is characterized in that: comprise the independent leadage circuit of macro-energy and H-bridge drive circuit; The independent leadage circuit of macro-energy comprises diode D5, PNP type triode Q5, NPN type triode Q6, resistance R1, resistance R2, resistance R3, resistance R4; Power end is connected to the anode of diode D5 and one end of resistance R1 as the input of the independent leadage circuit of macro-energy simultaneously, and the other end of resistance R1 is connected to the base stage of triode Q5; The negative terminal of diode D5 is connected to the emitter of triode Q5 and the common port of resistance R2, and the other end of resistance R2 is connected to the collector electrode of triode Q6; The collector electrode of triode Q5 is connected to one end of resistance R3, and the other end of resistance R3 is connected to one end of resistance R4, and the other end of resistance R4 is connected to the emitter of triode Q6; The base stage of triode Q6 is connected to the common port of resistance R3 and resistance R4, and the emitter of triode Q6 and the common port of resistance R4 are as the output head grounding of leadage circuit; H-bridge drive circuit comprises NPN type triode Q1, NPN type triode Q2, NPN type triode Q3, NPN type triode Q4, diode D1, diode D2, diode D3, diode D4; The negative terminal of diode D5 is connected to the common port of the negative terminal of the collector electrode of triode Q1, the collector electrode of triode Q3, the negative terminal of diode D1 and diode D3 as the input of H-bridge drive circuit; The base stage of triode Q1, the base stage of triode Q2, the base stage of triode Q3, the base stage of triode Q4, as other 4 inputs of H-bridge drive circuit, distinguish external logic control signal q1, logic control signal q2, logic control signal q3, logic control signal q4; The anode of the emitter of triode Q2, the emitter of triode Q4, diode D2 and the anode of diode D4 earth connection simultaneously; The emitter of triode Q1, the collector electrode of triode Q2, the anode of diode D1 and the negative terminal of diode D2 are connected to the exit a of magnetic torquer body simultaneously; The emitter of triode Q3, the collector electrode of triode Q4, the anode of diode D3 and the negative terminal of diode D4 are connected to the exit b of magnetic torquer body simultaneously; During the work of H-bridge drive circuit forward, adopt H-bridge drive circuit to carry out energy and release, logic control signal q1 is in pulse-width modulation state, and logic control signal q4 is in high level state, and logic control signal q2 and logic control signal q3 is in low level state; During the work of H-bridge drive circuit negative sense, adopt H-bridge drive circuit to carry out energy and release, logic control signal q3 is in pulse-width modulation state, and logic control signal q2 is in high level state, and logic control signal q1 and logic control signal q4 is in low level state; During H-bridge drive circuit experience transition period, adopt the independent leadage circuit of macro-energy to carry out energy and release, logic control signal q1, logic control signal q2, logic control signal q3 and logic control signal q4 are in low level state; The period that described transition period experiences in work conversion work process for H-bridge drive circuit is positive and negative; When experiencing the excessive period in H-bridge drive circuit commutation process, the voltage that the back-emf that magnetic torquer body produces makes V+ hold raises, when the magnitude of voltage of V+ end is more than Vcc end 0.7V, and triode Q5 conducting, then triode Q6 conducting, and the energy of magnetic torquer body is released.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210501424.7A CN103107718B (en) | 2012-11-30 | 2012-11-30 | Control circuit of energy discharging of large magnetic moment magnetorquer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210501424.7A CN103107718B (en) | 2012-11-30 | 2012-11-30 | Control circuit of energy discharging of large magnetic moment magnetorquer |
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| CN103107718B true CN103107718B (en) | 2015-07-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105799951B (en) * | 2014-12-31 | 2018-06-05 | 上海新跃仪表厂 | The micro- magnetic torquer of electromechanical integration and magnetic moment measurement method |
| CN106275510B (en) * | 2016-08-26 | 2018-07-24 | 北京控制工程研究所 | A kind of electromechanical integration magnetic torquer structure |
| CN112478201A (en) * | 2020-11-27 | 2021-03-12 | 山东航天电子技术研究所 | Magnetic torquer drive circuit based on constant current source |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102026445A (en) * | 2009-09-18 | 2011-04-20 | 东芝照明技术株式会社 | Led lighting device and illumination apparatus |
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| JPH0757068B2 (en) * | 1988-01-28 | 1995-06-14 | 日本電気株式会社 | Magnetic torquer drive circuit |
| US6331365B1 (en) * | 1998-11-12 | 2001-12-18 | General Electric Company | Traction motor drive system |
| US7781920B2 (en) * | 2008-03-19 | 2010-08-24 | Mala Hacek Over S Ek Jan Yuki | Push-on/push-off power-switching circuit |
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| CN102026445A (en) * | 2009-09-18 | 2011-04-20 | 东芝照明技术株式会社 | Led lighting device and illumination apparatus |
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