CN105717967A - Space power supply controller with static compensation current sampling circuit at power positive terminal - Google Patents
Space power supply controller with static compensation current sampling circuit at power positive terminal Download PDFInfo
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- CN105717967A CN105717967A CN201410724609.3A CN201410724609A CN105717967A CN 105717967 A CN105717967 A CN 105717967A CN 201410724609 A CN201410724609 A CN 201410724609A CN 105717967 A CN105717967 A CN 105717967A
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Abstract
The invention relates to a space power supply controller with a static compensation current sampling circuit at the power positive terminal, and belongs to the technical field of space power supplies. The space power supply controller with the static compensation current sampling circuit at the power positive terminal is of a modular structure and adopts a current sampling circuit form at the power positive terminal; the quantity of power adjustment modules is matched with the power of a satellite; input and output adjustment powers of each power adjustment module are constant and are automatically tracked according to an input control signal; a centralized control circuit generates a control signal according to the power change of a power output end; the power adjustment modules adjust the power according to signal adjustment input and output currents of the centralized control circuit; the current sampling circuit adopts a current mirror sampling circuit for measuring the current at the power positive terminal. The space power supply controller has the advantages that the circuit is simpler and more reliable and can meet the requirement of the space power supply controller on the premise of conforming to the bandwidth, the output accuracy and the electrical level.
Description
Technical field
The invention belongs to space power system technical field, particularly relate to one and be positioned at power positive terminal and have static compensation current sampling circuit space power system controller.
Background technology
At present, current sampling circuit is the circuit being most widely used in space power system controller.The complete commonly used conductance of bus power-supply controller of electric that regulates controls, and the output performance of current sampling circuit decides BCR, BDR circuit quality to the control characteristic of bus.It is subject to the restriction of the use of space element device, in order to meet power-supply controller of electric power requirement, it is necessary to multiple power conditioning modules carry out parallel operation, it is desirable to just use the current sampling circuit being positioned at power main track can meet the designing requirement of power-supply controller of electric.And the circuit form of low-side resistor is added for amplifier and can not meet design requirement.
The circuit form that the quality of current sample output performance adopts with it is closely related, and the circuit form of good output is complicated often, and reliability is low；And simply circuit existence can not meet the technical problems such as the control requirement of BCR/BDR.
Summary of the invention
The present invention solves that the technical problem existed in known technology provides one to be positioned at power positive terminal and has static compensation current sampling circuit space power system controller.
Present invention aim to address power line anode current sampling circuit output characteristics and circuit complexity contradictory problems between the two, there is provided a kind of and have under the premise meeting bandwidth, output accuracy and level, make circuit more simple and direct, reliably, the power positive terminal that is positioned to meet the features such as the demand of space power system controller has static compensation current sampling circuit space power system controller.
The present invention solves the current signal that can only process Power Groud end in background technology, be unsatisfactory for the occasion of multiple module paralleling power return low-impedance earthed system, the application of space power system controller BCR, BDR to adapt to.This technical scheme adopts the current sampling circuit form of power anode, by the circuit form of appropriate design and device, solve the collection of high mould signal small-signal and output characteristics and circuit complexity technical problem between the two, by selecting rational circuit form and compensation, the output accuracy of sample circuit, level and bandwidth is made to meet the control requirement of power-supply controller of electric BDR/BCR.
The present invention is positioned at power positive terminal has static compensation current sampling circuit space power system controller to be adopted the technical scheme that:
One is positioned at power positive terminal static compensation current sampling circuit space power system controller, it is characterized in: being positioned at power positive terminal has static compensation current sampling circuit space power system controller to adopt modular construction, adopt the current sampling circuit form of power anode, the quantity of power conditioning module and the power match of satellite, the input of each power conditioning module, output regulate power and fix, and input, output carry out automatic tracing according to input control signal；Centralized Control circuit produces control signal according to the changed power of power take-off, for controlling the adjustment power of power conditioning module；The power of each power conditioning module is that the signal according to centralized Control circuit is adjusted input, output electric current, to reach the function of power adjustments；Current sampling circuit adopts current mirror sample circuit to carry out the measurement of power anode electric current.
The present invention is positioned at power positive terminal has static compensation current sampling circuit space power system controller to adopt the following technical scheme that
The described power positive terminal that is positioned at has static compensation current sampling circuit space power system controller, it is characterized in: current mirror sample circuit is the current mirroring circuit with zero current biasing, circuit is provided with zero current bias compensation, it is ensured that electric current is from the zero to the linearity of the whole output of full scale.
The present invention has the advantage that and has the benefit effect that
It is positioned at power positive terminal and has the technical scheme that static compensation current sampling circuit space power system controller is brand-new owing to have employed the present invention, compared with prior art, the invention solves power line anode current sampling circuit output characteristics and circuit complexity contradictory problems between the two, make it under the premise meeting bandwidth, output accuracy and level, make circuit more simple and direct, reliably, to meet the demand of space power system controller.
Accompanying drawing explanation
Fig. 1 is that the present invention is positioned at power positive terminal and has static compensation current sampling circuit space power system controller principle schematic block diagram；
Fig. 2 is in power positive terminal the current sampling circuit principle schematic of static compensation current sampling circuit space power system controller；
Fig. 3 is that the present invention is positioned at power positive terminal and has the circuit curve of output schematic diagram of static compensation current sampling circuit space power system controller；
Fig. 4 is the circuit curve of output schematic diagram of traditional space power system controller.
In figure, RSHUNT-current sampling resistor constitutes current sampling circuit together with R1～R5, Q1～Q2, and VD1, R6～R9 constitutes biasing circuit.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and it be as follows to coordinate accompanying drawing to describe in detail:
Accompanying drawings 1, Fig. 2 and Fig. 3.
Embodiment 1
One is positioned at power positive terminal static compensation current sampling circuit space power system controller, adopt modular construction, adopt the current sampling circuit form of power anode, the quantity of power conditioning module and the power match of satellite, the input of each power conditioning module, output regulate power and fix, and input, output carry out automatic tracing according to input control signal；Centralized Control circuit produces control signal according to the changed power of power take-off, for controlling the adjustment power of power conditioning module；The power of each power conditioning module is that the signal according to centralized Control circuit is adjusted input, output electric current, to reach the function of power adjustments；Current sampling circuit adopts the current mirror sample circuit with zero current biasing to carry out the measurement of power anode electric current.
Details are as follows for the concrete manufacturing process of the present embodiment:
One is positioned at power positive terminal static compensation current sampling circuit space power system controller, adopt modularized design, the quantity of power conditioning module (hereinafter referred to as BCDR) depends on the power demand of satellite, the input of each BCDR module, output regulate power and fix, and its input, output carry out automatic tracing according to its input control signal.Centralized Control circuit (hereinafter referred to as MEA) produces control signal according to the changed power of power take-off, for controlling the adjustment power of BCDR.The power of each BCDR module is exactly that the signal according to MEA is adjusted its input, output electric current, to reach the function of power adjustments.This technology requires the current mirror sample circuit adopted by 7 conventional, electric-resistance, 1 sampling resistor, 1 Zener diode, 1 PNP triode and 1 PNP triode to constituting.
This circuit adopts the form of current mirror, and simultaneously in order to ensure the current sample precision under small area analysis state, circuit adds zero current bias compensation, it is ensured that electric current is from the zero to the linearity of the whole output of full scale.The output of circuit is as follows with the relation of electric current:
Vout=ki+b ... ... ... ... ... ... ... ... ... (1)
Practical application requiring, R1 and R2 to mate identical, R3 and R4 to mate identical, R8 and R9 to mate identical, this patent circuit solves the conventional power anode sample circuit problem in small area analysis output linearity degree distortion, make system output under ensureing high bandwidth, its output accuracy is high, simple circuit, the power supply that circuit need not be extra simultaneously.It is adapted to the demand of highly reliable, long-life, non-maintaining special occasions.
The present embodiment has described under the premise meeting bandwidth, output accuracy and level, makes circuit more simple and direct, reliably, and the good effect such as demand that can meet space power system controller.
Claims (2)
1. one kind is positioned at power positive terminal and has static compensation current sampling circuit space power system controller, it is characterized in that: being positioned at power positive terminal has static compensation current sampling circuit space power system controller to adopt modular construction, adopt the current sampling circuit form of power anode, the quantity of power conditioning module and the power match of satellite, the input of each power conditioning module, output regulate power and fix, and input, output carry out automatic tracing according to input control signal；Centralized Control circuit produces control signal according to the changed power of power take-off, for controlling the adjustment power of power conditioning module；The power of each power conditioning module is that the signal according to centralized Control circuit is adjusted input, output electric current, to reach the function of power adjustments；Current sampling circuit adopts current mirror sample circuit to carry out the measurement of power anode electric current.
2. the power positive terminal that is positioned at according to claim 1 has static compensation current sampling circuit space power system controller, it is characterized in that: current mirror sample circuit is the current mirroring circuit with zero current biasing, circuit is provided with zero current bias compensation, it is ensured that electric current is from the zero to the linearity of the whole output of full scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410724609.3A CN105717967A (en) | 2014-12-03 | 2014-12-03 | Space power supply controller with static compensation current sampling circuit at power positive terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410724609.3A CN105717967A (en) | 2014-12-03 | 2014-12-03 | Space power supply controller with static compensation current sampling circuit at power positive terminal |
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| Publication Number | Publication Date |
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| CN105717967A true CN105717967A (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410724609.3A Pending CN105717967A (en) | 2014-12-03 | 2014-12-03 | Space power supply controller with static compensation current sampling circuit at power positive terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155163A (en) * | 2016-09-19 | 2016-11-23 | 中国电子科技集团公司第十八研究所 | Static compensation-based current sampling circuit at power positive terminal of space power supply controller |
| CN107977042A (en) * | 2017-11-30 | 2018-05-01 | 深圳麦格米特电气股份有限公司 | A kind of power circuit and adapter |
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| CN101629973A (en) * | 2009-06-09 | 2010-01-20 | 中国人民解放军国防科学技术大学 | High-precision current sampling circuit without operational amplifier for low voltage power supply |
| CN102426285A (en) * | 2011-09-14 | 2012-04-25 | 深圳航天科技创新研究院 | Current sensor used for bidirectional current sampling |
| CN103532196A (en) * | 2013-10-23 | 2014-01-22 | 上海艾为电子技术有限公司 | Voltage sampling circuit of charging battery |
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2014
- 2014-12-03 CN CN201410724609.3A patent/CN105717967A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629973A (en) * | 2009-06-09 | 2010-01-20 | 中国人民解放军国防科学技术大学 | High-precision current sampling circuit without operational amplifier for low voltage power supply |
| CN102426285A (en) * | 2011-09-14 | 2012-04-25 | 深圳航天科技创新研究院 | Current sensor used for bidirectional current sampling |
| CN103532196A (en) * | 2013-10-23 | 2014-01-22 | 上海艾为电子技术有限公司 | Voltage sampling circuit of charging battery |
Non-Patent Citations (2)
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| 谷雨: "双向高效率 DC-DC 变换器的研究", 《中国优秀硕士学位论文全文数据库》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155163A (en) * | 2016-09-19 | 2016-11-23 | 中国电子科技集团公司第十八研究所 | Static compensation-based current sampling circuit at power positive terminal of space power supply controller |
| CN107977042A (en) * | 2017-11-30 | 2018-05-01 | 深圳麦格米特电气股份有限公司 | A kind of power circuit and adapter |
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Application publication date: 20160629 |