CN108051635A - Priming system initial firing current peak detection circuit - Google Patents
Priming system initial firing current peak detection circuit Download PDFInfo
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- CN108051635A CN108051635A CN201710993287.6A CN201710993287A CN108051635A CN 108051635 A CN108051635 A CN 108051635A CN 201710993287 A CN201710993287 A CN 201710993287A CN 108051635 A CN108051635 A CN 108051635A
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- Prior art keywords
- resistor
- initial firing
- diode
- firing current
- priming system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/04—Measuring peak values or amplitude or envelope of ac or of pulses
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The present invention provides a kind of priming system initial firing current peak detection circuits, initial firing current identification circuit, control signal broadening modulate circuit, the priming system initial firing current peak holding circuit being connected with each other including three, initial firing current identification circuit possesses the sensor signal identification that will be greater than reference voltage, is converted into the function of level signal output；Control signal broadening modulate circuit possesses the ignition signal after identification, the width of broadening to suitable microlock sampling period, and rear class priming system initial firing current peak holding circuit is driven by the signal after broadening；Priming system initial firing current peak holding circuit extracts the peak value of current sensor, maintained until the peak value of a new bigger occurs.The present invention is enable to respond quickly, and initial firing current tracking is accurate, simple structure, high reliability, suitable for current all kinds of spacecraft priming systems, the telemetering of current of electric blasting valve ignition transient.
Description
Technical field
The present invention relates to a kind of detection circuit, more particularly to a kind of priming system initial firing current peak detection circuit.
Background technology
In spacecraft, the electric blasting valve control of the priming system, propulsion pipeline that are compressed to mechanism is satellite propulsion, becomes rail
And the important action during fixed point, mechanism is not deployed, pipeline not by it is estimated be switched on or switched off etc. failures will extreme influence navigate
The main task of its device performs effectively.Therefore the inspection of the initial firing current for components such as priming system, electric blasting valves in ignition process
Survey has great importance for satellite task reliability.
Current spacecraft is mostly to use this kind of qualitatively telemetering of on off state telemetering for the monitoring of priming system initial firing current,
Minority carries out memory holding using energy storage devices such as capacitances to priming system initial firing current, fails to obtain peak point current, and measures essence
Degree is difficult to ensure that.
Currently without the explanation or report for finding technology similar to the present invention, money similar both at home and abroad is also not yet collected into
Material.
The content of the invention
For in the prior art the defects of, the object of the present invention is to provide a kind of priming system initial firing current peak detection electricity
Road is enable to respond quickly, and initial firing current tracking is accurate, simple structure, high reliability, suitable for current all kinds of spacecraft firers
The telemetering of current of product, electric blasting valve ignition transient.
According to an aspect of the present invention, a kind of priming system initial firing current peak detection circuit is provided, which is characterized in that bag
Include the initial firing current identification circuit, control signal broadening modulate circuit, priming system initial firing current peak holding of three's interconnection
Circuit, initial firing current identification circuit possess the sensor signal identification that will be greater than reference voltage, are converted into level signal output
Function；Control signal broadening modulate circuit possesses the ignition signal after identification, and broadening to suitable microlock samples week
The width of phase drives rear class priming system initial firing current peak holding circuit by the signal after broadening；Priming system ignition power stream peak
It is worth the peak value of holding circuit extraction current sensor, maintained until the peak value of a new bigger occurs.
Preferably, the initial firing current identification circuit include the 3rd operational amplifier, the 4th resistor, the 5th resistor,
Second capacitance, control signal broadening modulate circuit include the 6th resistor, the 7th resistor, the 8th resistor, the 9th resistor,
Tenth resistor, the 3rd capacitance, the 4th capacitance, the 4th diode, the 5th diode, the 6th diode, trigger, priming system point
Fiery current peak holding circuit includes first resistor device, second resistance device, 3rd resistor device, the first operational amplifier, the second fortune
Calculate amplifier, the first diode, the second diode, the 3rd diode, the first capacitance, switch, second resistance device and the one or two pole
Pipe is in parallel, and the negative input of second resistance device and the first diode all with the first operational amplifier be connected, 3rd resistor device and
Switch connection, first resistor device are connected with the second Diode series and with the cathode output end of the first operational amplifier, the first electricity
Hold in parallel with 3rd resistor device, the electrode input end of the second diode and second operational amplifier connects, second resistance device and the
The electrode input end of the negative input connection of two operational amplifiers, the 3rd diode and second operational amplifier connects, and the 5th
Resistor, the 6th resistor, the 9th resistor, the 6th diode, the second capacitance are all connected with trigger, the 4th resistor and
The electrode input end connection of three operational amplifiers, the 5th resistor are connected with the output terminal of the 3rd operational amplifier, the 3rd capacitance
With the 7th resistor in series, the 6th resistor and the 8th resistor in series, the 9th resistor are connected with the 4th capacitance, the four or two pole
Five Diode series of Guan Yu, the tenth resistor and the 6th Diode series.
Preferably, the 4th resistor is the build-out resistor of sensor signal input, and the 3rd operational amplifier switch is made
It is used for comparator, the 5th resistor, the second capacitance form a passive low-pass filter, filter out sensor or circuit is made an uproar
Sound.
Preferably, the 3rd capacitance, the 7th resistance constitute the electrification reset circuit of trigger, ensure that trigger powers on
Original state is low level output afterwards.
Preferably, the 4th diode, the 5th diode are used to isolate electrification reset circuit and broadening control circuit
Signal output.
Preferably, electric discharge when the 8th resistance is used for the 4th diode, the cut-off of the 5th diode, the 6th resistance are used
In the input of match triggers device.
Preferably, the follower that the voltage of first capacitance is made up of second operational amplifier, as the first computing
The negative-feedback of amplifier.
Preferably, first diode, the second diode are kept and voltage-tracing work respectively in the voltage of the first capacitance
During operation mode, the one-way of current direction is kept.
Preferably, the charge that the 3rd resistor is constituted with switch in the first capacitance after crest voltage is kept is released
It puts.
Preferably, second diode, switch, the noninverting input of second operational amplifier should have minimum electric leakage
Parameter is flowed, is maintained with the charge ensured in the first capacitance.
Compared with prior art, the present invention has following advantageous effect：The present invention is enable to respond quickly, initial firing current with
Track is accurate, simple structure, high reliability, suitable for current all kinds of spacecraft priming systems, the telemetering of current of electric blasting valve ignition transient.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the circuit diagram of priming system initial firing current peak detection circuit of the present invention.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
As shown in Figure 1, priming system initial firing current peak detection circuit of the present invention includes the initial firing current that three is connected with each other
Identification circuit, control signal broadening modulate circuit, priming system initial firing current peak holding circuit, initial firing current identification circuit possess
The sensor signal identification of reference voltage is will be greater than, is converted into the function of level signal output；Control signal broadening modulate circuit
Possess the ignition signal after identification, broadening passes through the signal after broadening to the width in suitable microlock sampling period
Drive rear class priming system initial firing current peak holding circuit；Priming system initial firing current peak holding circuit extraction current sensor
Peak value, maintained until the peak value of a new bigger occurs.
Initial firing current identification circuit includes the 3rd operational amplifier D3, the 4th resistor R4, the 5th resistor R5, the second electricity
Hold C2, control signal broadening modulate circuit includes the 6th resistor R6, the 7th resistor R7, the 8th resistor R8, the 9th resistance
Device R9, the tenth resistor R10, the 3rd capacitance C3, the 4th capacitance C4, the 4th diode V4, the 5th diode V5, the 6th diode
V6, trigger D4, priming system initial firing current peak holding circuit include first resistor device R1, second resistance device R2,3rd resistor
Device R3, the first operational amplifier D1, second operational amplifier D2, the first diode V1, the second diode V2, the 3rd diode
V3, the first capacitance C1, switch K1, second resistance device R2 is in parallel with the first diode V1, second resistance device R2 and the first diode
Negative inputs of the V1 all with the first operational amplifier D1 is connected, and 3rd resistor device R3 is connected with switch K1, first resistor device R1
It connects with the second diode V2 and is connected with the cathode output end of the first operational amplifier D1, the first capacitance C1 and 3rd resistor device
R3 is in parallel, and the second diode V2 is connected with the electrode input end of second operational amplifier D2, second resistance device R2 and the second computing
The negative input connection of amplifier D2, the 3rd diode V3 are connected with the electrode input end of second operational amplifier D2, and the 5th
Resistor R5, the 6th resistor R6, the 9th resistor R9, the 6th diode V6, the second capacitance C2 are connected with trigger D4, the
Four resistor R4 are connected with the electrode input end of the 3rd operational amplifier D3, the 5th resistor R5 and the 3rd operational amplifier D3's
Output terminal connects, and the 3rd capacitance C3 connects with the 7th resistor R7, and the 6th resistor R6 connects with the 8th resistor R8, the 9th electricity
Resistance device R9 connects with the 4th capacitance C4, and the 4th diode V4 connects with the 5th diode V5, the tenth resistor R10 and the six or two pole
Pipe V6 connects.
4th resistor R4 is the build-out resistor of sensor signal input, and the 3rd operational amplifier D3 switches are as comparator
It uses, the 5th resistor R5, the second capacitance C2 form a passive low-pass filter, filter out sensor or circuit noise.
Trigger D4, in the case of inputting a high level at low level, SET ends at CLR ends, output Q can keep exporting
One high level, it is consistent to keep, there is high level to empty output until CLR ends.
3rd capacitance C3, the 7th resistance R7 constitute the electrification reset circuit of trigger D4, ensure trigger D4 after the power is turned on
Original state is low level output.
3rd diode V3 is zener diode, so improves voltage regulation performance.
9th resistance R9, the 4th capacitance C4 are the time parameter control devices of the broadening widening circuit, as the Q of trigger D4
During the output high level of end, charged by the 9th resistance R9 to the 4th capacitance C4, until the voltage of the 4th capacitance C4 reaches trigger
CLR ends empty voltage；Tenth resistance R10, the 6th diode V6 are the release channels of the 4th capacitance C4 charges, the tenth resistance
R10 values will be much smaller than the value of the 9th resistance R9 to ensure the rapidity of the 4th capacitance C4 charges release, the 6th diode V6
For controlling the one-way of the tenth resistance R10 accesses, i.e., do not charged by the tenth resistance R10, and put by the tenth resistance R10
Electricity.
The signal that 4th diode V4, the 5th diode V5 are used to isolate electrification reset circuit and broadening control circuit is defeated
Go out.
Electric discharge when 8th resistance R8 is used to end the 4th diode V4, the 5th diode V5, the 6th resistance R6 are used for
The input of match triggers device D4.
First capacitance C1 is used to keep the memory of nearest crest voltage.
The follower that the voltage of first capacitance C1 is made up of second operational amplifier D2, as the first operational amplifier D1
Negative-feedback.
When operational amplifier D1 in-phase ends input voltage is more than the voltage of the first capacitance C1, the first operational amplifier D1 is defeated
Go out saturation, the first diode V1 ends at this time, and the second diode V2 conductings, the first operational amplifier D1 output terminals are rapidly to first
Capacitance C1 charges, until the first capacitance C1 voltages are equal with the first diode D1 input voltages in the same direction.
First diode V1, the second diode V2 are kept and voltage-tracing operating mode respectively in the voltage of the first capacitance C1
When, keep the one-way of current direction.
The charge that 3rd resistor R3 is constituted with switch K1 in the first capacitance C1 after crest voltage is kept discharges, and opens
It can be the electronic switches such as relay, triode, metal-oxide-semiconductor to close K1, and switch K1 is normally closed under the premise of no instruction.
Second diode V2, switch K1, the noninverting input of second operational amplifier D2 should have minimum leakage current to join
Number is maintained with the charge ensured in the first capacitance C1.
The operation principle of the present invention is as follows：When sensor signal be more than reference voltage when, initial firing current identification circuit according to
Initial firing current exports one and the control signal of initial firing current equivalent width, is nursed one's health by control signal broadening, obtains one completely
Broadening control level more than sufficient satellite TT＆C system collection period, the control Automatic level control priming system initial firing current peak signal
Switch K1 in holding circuit switchs K1 and remains off at this time, and priming system initial firing current peak signal holding circuit starts
The current peak signal for tracking and keeping current sensor to export, TT＆C system is completed to the signal during widening circuit works
After acquisition, control signal broadening modulate circuit comes back to low level, in priming system initial firing current peak signal holding circuit
Switch K1 returns to the normally closed state of acquiescence, and level keeps the charge release in the first capacitance C1, and collecting flowchart of the circuit terminates.
In conclusion the fast response time of the present invention, initial firing current tracking is accurate, and simple structure, high reliability is suitable for
Current all kinds of spacecraft priming systems, the telemetering of current of electric blasting valve ignition transient.
Specific embodiments of the present invention are described.It is to be appreciated that the invention is not limited in above-mentioned specific realities
Mode is applied, those skilled in the art can make various deformations or amendments within the scope of the claims, this has no effect on this hair
Bright substantive content.
Claims (10)
1. a kind of priming system initial firing current peak detection circuit, which is characterized in that know including the initial firing current that three is connected with each other
Other circuit, control signal broadening modulate circuit, priming system initial firing current peak holding circuit, initial firing current identification circuit possess by
Sensor signal more than reference voltage identifies, is converted into the function of level signal output；Control signal broadening modulate circuit has
It is standby will identify after ignition signal, the width of broadening to suitable microlock sampling period passes through the drive of the signal after broadening
Dynamic rear class priming system initial firing current peak holding circuit；Priming system initial firing current peak holding circuit extracts the peak of current sensor
Value, maintained until the peak value of a new bigger occurs.
2. priming system initial firing current peak detection circuit according to claim 1, which is characterized in that the initial firing current is known
Other circuit includes the 3rd operational amplifier, the 4th resistor, the 5th resistor, the second capacitance, control signal broadening modulate circuit
Including the 6th resistor, the 7th resistor, the 8th resistor, the 9th resistor, the tenth resistor, the 3rd capacitance, the 4th capacitance,
4th diode, the 5th diode, the 6th diode, trigger, priming system initial firing current peak holding circuit include the first electricity
Hinder device, second resistance device, 3rd resistor device, the first operational amplifier, second operational amplifier, the first diode, the two or two pole
Pipe, the 3rd diode, the first capacitance, switch, second resistance device and the first diodes in parallel, second resistance device and the first diode
Negative input all with the first operational amplifier is connected, and 3rd resistor device is connected with switch, first resistor device and the two or two pole
Pipe is connected and is connected with the cathode output end of the first operational amplifier, and the first capacitance is in parallel with 3rd resistor device, the second diode
It is connected with the electrode input end of second operational amplifier, the negative input connection of second resistance device and second operational amplifier,
3rd diode and the electrode input end of second operational amplifier connect, the 5th resistor, the 6th resistor, the 9th resistor,
6th diode, the second capacitance are all connected with trigger, and the 4th resistor is connected with the electrode input end of the 3rd operational amplifier,
5th resistor is connected with the output terminal of the 3rd operational amplifier, the 3rd capacitance and the 7th resistor in series, the 6th resistor with
8th resistor in series, the 9th resistor are connected with the 4th capacitance, the 4th diode and the 5th Diode series, the tenth resistor
With the 6th Diode series.
3. priming system initial firing current peak detection circuit according to claim 2, which is characterized in that the 4th resistor
It is the build-out resistor of sensor signal input, the 3rd operational amplifier switch is used as comparator, the 5th resistor, the second electricity
Hold one passive low-pass filter of composition, filter out sensor or circuit noise.
4. priming system initial firing current peak detection circuit according to claim 2, which is characterized in that the 3rd capacitance,
7th resistance constitutes the electrification reset circuit of trigger, ensures that original state is low level output to trigger after the power is turned on.
5. priming system initial firing current peak detection circuit according to claim 2, which is characterized in that the four or two pole
Pipe, the 5th diode are used for the signal output for isolating electrification reset circuit and broadening control circuit.
6. priming system initial firing current peak detection circuit according to claim 2, which is characterized in that the 8th resistance is used
Electric discharge when to the 4th diode, the cut-off of the 5th diode, the 6th resistance are used for the input of match triggers device.
7. priming system initial firing current peak detection circuit according to claim 2, which is characterized in that first capacitance
The follower that voltage is made up of second operational amplifier, the negative-feedback as the first operational amplifier.
8. priming system initial firing current peak detection circuit according to claim 2, which is characterized in that the one or two pole
Pipe, the second diode when the voltage of the first capacitance is kept with voltage-tracing operating mode, keep the unidirectional of current direction respectively
Property.
9. priming system initial firing current peak detection circuit according to claim 2, which is characterized in that the 3rd resistor with
Switch constitutes the charge release in the first capacitance after crest voltage is kept.
10. priming system initial firing current peak detection circuit according to claim 2, which is characterized in that the two or two pole
Pipe, switch, the noninverting input of second operational amplifier should have minimum leakage current parameter, to ensure the electricity in the first capacitance
Lotus maintains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710993287.6A CN108051635A (en) | 2017-10-23 | 2017-10-23 | Priming system initial firing current peak detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710993287.6A CN108051635A (en) | 2017-10-23 | 2017-10-23 | Priming system initial firing current peak detection circuit |
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| Publication Number | Publication Date |
|---|---|
| CN108051635A true CN108051635A (en) | 2018-05-18 |
Family
ID=62119580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710993287.6A Pending CN108051635A (en) | 2017-10-23 | 2017-10-23 | Priming system initial firing current peak detection circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082619A (en) * | 2019-04-24 | 2019-08-02 | 重庆斯微奇电子技术有限公司 | A kind of priming system detection system and detection method |
| CN111342819A (en) * | 2020-03-10 | 2020-06-26 | 上海卫星工程研究所 | Initiating explosive device detonation current detection circuit for spacecraft |
| CN113310368A (en) * | 2021-04-25 | 2021-08-27 | 上海卫星工程研究所 | Initiating explosive device ignition circuit based on constant current drive |
| CN113325217A (en) * | 2021-04-23 | 2021-08-31 | 上海卫星工程研究所 | Microsecond level initiating explosive device ignition current detection circuit based on single operational amplifier |
| CN114487757A (en) * | 2022-04-14 | 2022-05-13 | 长沙丹芬瑞电气技术有限公司 | Detection apparatus for field effect transistor health status and power supply |
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| JP2003215173A (en) * | 2002-01-23 | 2003-07-30 | Nec Microsystems Ltd | Peak-holding circuit |
| CN2587027Y (en) * | 2002-11-14 | 2003-11-19 | 武汉科技学院 | Wireless digital real-time distance measuring safety alarm |
| CN103116062A (en) * | 2013-03-11 | 2013-05-22 | 矽力杰半导体技术(杭州)有限公司 | Circuit and method for detecting voltage peak |
| CN204188692U (en) * | 2014-09-11 | 2015-03-04 | 上海卫星工程研究所 | Priming system initial firing current testing circuit |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003215173A (en) * | 2002-01-23 | 2003-07-30 | Nec Microsystems Ltd | Peak-holding circuit |
| CN2587027Y (en) * | 2002-11-14 | 2003-11-19 | 武汉科技学院 | Wireless digital real-time distance measuring safety alarm |
| CN103116062A (en) * | 2013-03-11 | 2013-05-22 | 矽力杰半导体技术(杭州)有限公司 | Circuit and method for detecting voltage peak |
| CN204188692U (en) * | 2014-09-11 | 2015-03-04 | 上海卫星工程研究所 | Priming system initial firing current testing circuit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082619A (en) * | 2019-04-24 | 2019-08-02 | 重庆斯微奇电子技术有限公司 | A kind of priming system detection system and detection method |
| CN110082619B (en) * | 2019-04-24 | 2020-02-21 | 重庆斯微奇电子技术有限公司 | Initiating explosive device detection system and detection method |
| CN111342819A (en) * | 2020-03-10 | 2020-06-26 | 上海卫星工程研究所 | Initiating explosive device detonation current detection circuit for spacecraft |
| CN111342819B (en) * | 2020-03-10 | 2023-09-19 | 上海卫星工程研究所 | Detonation current detection circuit for initiating explosive device of spacecraft |
| CN113325217A (en) * | 2021-04-23 | 2021-08-31 | 上海卫星工程研究所 | Microsecond level initiating explosive device ignition current detection circuit based on single operational amplifier |
| CN113310368A (en) * | 2021-04-25 | 2021-08-27 | 上海卫星工程研究所 | Initiating explosive device ignition circuit based on constant current drive |
| CN114487757A (en) * | 2022-04-14 | 2022-05-13 | 长沙丹芬瑞电气技术有限公司 | Detection apparatus for field effect transistor health status and power supply |
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Application publication date: 20180518 |
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