SJ 20682-1998 General specification for Lx band solid-state pulse power modules
Some standard content:
Military standard for electronics industry of the People's Republic of China FL5963
SJ 20682-1998
Lx band solid-state pulse power modules
General specificationwww.bzxz.net
General specification for Lx bandSolid-state pulse power modules1998-03-18 Issued
1998-05-01 Implementation
Approved by the Ministry of Electronics Industry of the People's Republic of China 1 Scope
Referenced documents
Quality assurance provisions
Delivery preparation
Notes
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Military standard for electronics industry of the People's Republic of China General specification for Lx bandSolid-state pulse power modules1 Scope
1.1 Subject content
SJ 20682—1998
This specification specifies the general requirements, quality assurance regulations and delivery preparation of Lx band solid-state pulse power modules (hereinafter referred to as modules).
1.2 Scope of application
This specification is applicable to various solid-state pulse power modules in the pulse transmission equipment of radio navigation Lx band, and other solid-state pulse power modules in Lx band can also be used as a reference. It is the basis for research, production and use. 1.3 Classification
The modules in this specification are divided into three categories according to their universality: Class A is a universal module for airborne equipment; Class B is a universal module for ground equipment; Class C is a universal module for shipborne equipment. 2 References
GJB150.2--86 Environmental test methods for military equipment Low pressure (altitude) test GJB150.3--86 Environmental test methods for military equipment High temperature test GJB150.4--86 Environmental test methods for military equipment Low temperature test GJB150.5-86 Environmental test methods for military equipment Temperature shock test 5 Environmental test methods for military equipment Temperature-altitude test GJB 150.6-86
GJB150.9-86 Environmental test methods for military equipment Wet heat test GJB150.10~86 Environmental test methods for military equipment Fungal test GJB150.11—86 Environmental test methods for military equipment Salt spray test GJB150.15--86 Environmental test methods for military equipment Acceleration test GJB150.16—86 Environmental test methods for military equipment Vibration test Ministry of Electronics Industry of the People's Republic of China 1998-03-18 Issued 1998-05-01 Implementation
SJ 20682—1998
GJB150.18-86 Environmental test methods for military equipment Impact test GJB151A--97 Requirements for electromagnetic emission and sensitivity of military equipment and subsystems GJB152A--97 Counting sampling and inspection procedures and tables for electromagnetic emission and sensitivity measurement of military equipment and subsystems
GJB 179A--96
GJB367.5--87 General technical conditions for military communication equipment Packaging, transportation and storage requirements GIB 899-90
Reliability identification and acceptance test
GJB1032—90 Environmental stress screening methods for electronic products Protective packaging and packing levels
GJB 1182—911
GJB1765—93 Military Supplies Packaging Mark
GJB1766-93 Technical Requirements for Radar Equipment Maintenance Spare Parts Packaging GJB2072-94 Maintainability Test and Evaluation
3 Requirements
3.1 Qualification Appraisal
Products delivered in accordance with this specification shall be qualified products or approved for finalization. 3.2 Composition, series and main performance indicators of modules (see 4.7.1.1~4.7.1.8) 3.2.1 The modules in this specification are usually composed of excitation, amplification power distribution and power synthesis units. The composition of each module body is specified by the product specification. 3.2.2 According to power classification, the module series in this specification are 1W, 10W, 25W, 100W, 250W, 600W and 800W.
The main performance indicators of various modules are shown in Table 1. 1
9601215
960~1 215
960~1 215
9601 215
960～1 215
960~1 215
1 025 ~1 150
Minimum output power
Note: Pulse width is calculated based on the peak value 50%~50% time. 2
Gukong ratio
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3.3 Module dimensions (now 4.7.2)
Dimensions of various modules in Table 2.
Module series
3.4 Interface (see 4.7.3)
SJ 20682—1998
Overall dimensions bxhx1 mm
20×50×100
20x50x100
20×50×[00
30×50×150
30×50×150
45×198×220
45×60×150
For the interface requirements of various modules, see Table 3.
Module series
RF interface
Port impedance α
Connection shape
3.4.2 Modulation signal requirements are specified by each product specification: RF input
Pulse width 25ms
Pulse width 25us
Pulse width 254s
Pulse width ≤25 us
Pulse width ≤10 μs
Pulse width ≤ 10s
Pulse width ≤ 10us
Appearance
Power supply interface
Feedback capacitor lead
Feedback capacitor lead
Feedback capacitor lead
Feedback capacitor lead
Feedback capacitor lead
Feedback capacitor lead
3.4.3 A storage capacitor with a capacitance of 4701000μF must be connected to the ground in parallel at the power supply interface. 3.5 Power supply (see 4.7.4)
Each module should be able to work in positive band under the corresponding nominal voltage of 15V or 24V, 28V, 48V, and the voltage fluctuation is the nominal voltage ±5%: the ripple peak is less than or equal to 50mV, and the maximum amplitude of instantaneous overshoot is less than or equal to 5V. 3.6 Energy consumption requirements (see 4.7.5)
Energy consumption requirements for each module are shown in Table 4.
Power consumption W
3.7 Continuous working time (see 4.7.6)
SJ20682—1998
Under the standard atmospheric conditions of the test, each module should be able to operate continuously for 24 hours, and the performance should meet the requirements of this specification. 3.8 Environmental requirements
3.8.1 Temperature
All modules should be able to operate and store at the temperature specified in Table 5. Table 5
Operating temperature
3.8.2 Low pressure (altitude)
Storage temperature
Operating temperature
Storage temperature
Class B modules should be able to be stored, transported and used on land at high altitudes under the low pressure specified in Table 6. Table 6
Test air pressure
3.8.3 Temperature shock
Dahaiyi altitude
Test temperature
Class A modules should be able to withstand the rapid temperature changes specified in Table 7. Table 7
Test temperature
70°℃
-55°℃
Hot-keeping time
Test time
Conversion time
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Working status
Working/non-working
Non-working
Number of cycles
3.8.4 Vibration
SJ20682—1998
Class A modules should be able to withstand the 5th category vibration environment test in GFB150.16: Class B modules should be able to withstand the 8th category vibration environment test in GJB150.16: Class C modules should be able to withstand the 9th category vibration environment test in GIB150.16 and have the ability to maintain intact structure and performance.
Note: When the module is actually used, if additional protective measures are required on the plug-in box or if the module's perturbation adaptability cannot be determined, the plug-in box or the whole machine can be tested according to the above requirements to verify its performance and structural integrity. 3. 8.5 Impact
Class A and B modules should be able to withstand the "Test 5 Basic Design Test" and "Test 6 Drop Test" in GJB150.18. Class C modules should be able to withstand the "Test 10 Shock Test of Ship Equipment" in GJB150.18 and have the ability to maintain the structure and performance intact:
Note: When the module is actually used, if it is necessary to add corresponding impact protection measures to the plug-in box, it is allowed to be tested with the plug-in box or the whole machine: to verify its performance and structural integrity. 3.8.6 Acceleration
Class A module The module should be able to withstand the acceleration test of 1 minute in six directions determined by three mutually perpendicular axes, and the acceleration value is specified by the product specification. 3.8.7 Temperature quotient
Class A modules should be able to withstand the test surface of level 6 and steps 3, 10, 1112, 13 in Table 2 of GJB150.6 and can work normally.
Method: After doing this test, high temperature, low temperature and low pressure tests can be exempted: 3.8.8 Humidity and heat
Each module should be able to withstand the humidity and heat test specified in Table 8. Table 8
3. 8.9 Salt spray
High temperature and high humidity stage
Relative turbidity
Low temperature and high condensation stage
Relative humidity
Test cycle
The module should have the ability to resist salt spray corrosion. After undergoing the test specified in Chapter 2 of GJB150.11, there is only a small amount of rust and it can work normally.
3.8.10 Mold
The module should have the ability to resist mold. After undergoing the test specified in Chapter 2 of GJB150.10, the mold growth should not exceed Level 2.
3.9 Reliability
SJ 20682-1998
The minimum acceptable mean time between failures (MTBF) of various modules is specified by the product specifications. Generally, it should not be less than 10000h.
3.10 Maintainability
Modules as field replaceable units should provide the necessary fault or performance detection points for BIT and have good accessibility. The average replacement time should not exceed 15min. 3.11 Electromagnetic compatibility requirements
Electromagnetic compatibility design should be carried out for various modules and should be included in the product specifications. Specific requirements shall be put forward according to the provisions of GB151A.
3.12 Interchangeability requirements
a. Universal or standard parts shall be used as much as possible: b. The replaced module does not need to be adjusted or only needs to be fine-tuned when it is powered on or started. 3.13 Safety requirements
The module shall have protection against instantaneous open circuit or short circuit and error prevention protection. 3.14 Marking and code
a. The content of the module marking shall be specified by the product specification: b. The power module code shall be uniformly numbered according to the following method: MP-XXX X
- indicates the environmental classification, and A, B, and C are used to indicate the power level of the module
- indicates the power module
Example: The Lx band 10W pulse power module used in airborne equipment is represented as: MP-10-A or (MPP) pulse power module
e: The markings and codes on the modules and parts shall be clear and meet the requirements of the product specification. 3.15 Appearance quality
a: The module surface should be free of dents, scratches, deformation defects, and the coating (plating) layer should not bubble, fall off or crack; b. The connector pins and positioning pins should not be bent or damaged; c. The color of the modules exposed on the front panel of the plug-in box should be consistent, and there should be no difference when observed in the daytime. 4 Quality Assurance Provisions
4.1 Inspection Responsibility
Unless otherwise specified in the contract or order, the contractor shall be responsible for completing all inspections in this specification. If necessary, the purchaser or the appraisal agency has the right to inspect any inspection item described in the specification. 4.1.1 All modules must meet all requirements in Chapter 3 and Chapter 5 of the specification. The inspections specified in this specification shall become an integral part of the contractor's entire inspection system or quality outline. If the contract includes inspection requirements not specified in this specification, the contractor shall also ensure that the modules submitted for acceptance meet the contract requirements. Quality consistency sampling does not allow the submission of modules that are known to be defective, nor can the ordering party be required to accept defective modules. 4.2 Inspection categories
The inspection categories specified in this specification are as follows:
a. Identification inspection;
b. Quality-conformity inspection,
4.3 Inspection conditions
a. Unless otherwise specified, all inspections are carried out under the following standard atmospheric conditions for testing: Temperature: 15°℃～35°℃:
Relative astringency: 20%～80%;
Air pressure: test site air pressure.
b. Unless otherwise specified, when performing performance tests, the module voltage is the rated voltage. c. The performance indicators of the test equipment and instruments used should be one or one-third of the accuracy of the measured indicators, and within the validity period of metrological qualification. d. During the inspection, the module that has been screened by environmental stress shall be used. The environmental stress screening method shall be carried out according to GJB1032 and the product specification.
4.4 Qualification inspection
The qualification inspection shall be carried out in a laboratory approved by the qualification organization. The samples used shall be the modules produced by the usual equipment and technology in production.
4.4.1 Number of samples
The number of samples subjected to qualification inspection shall generally not be less than two. 4.4.2 Inspection items
The items of qualification inspection shall be selected from Table 9 according to the requirements of this specification based on the module type. The test sequence shall be specified by the product specification.
4.4.3 Qualification criteria
When all inspection items meet the requirements of this specification or product specification, the qualification inspection shall be judged as qualified: If any inspection item does not meet the requirements specified in the specification, the inspection shall be stopped. The contractor shall analyze the unqualified items, find out the cause of the defect and take corrective measures before continuing the inspection. If all the inspection items meet the specified requirements, the identification inspection is considered qualified; if there is still an item that does not meet the specified requirements after continued inspection, the identification inspection is considered unqualified.
4.4.4 Maintaining the qualification of identification
SJ 20682--1998
To maintain the qualification of identification inspection, the contractor shall regularly provide the module test data (including submission frequency) according to the requirements of the ordering party or the identification agency. Table 9
Frequency range
Input power
Minimum output power
Pulse width
Power gain
Maximum duty cycle
Harmonic suppression
Clutter suppression
Dimensions
Power supply voltage fluctuation
Power supply voltage transient overshoot
Continuous working capability
Low air pressure
Temperature shock
20 acceleration
Conformity inspection
Required
Chapter number
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Test method
Chapter number
Temperature-altitude
Serviceability
Electromagnetic compatibility
Interchangeability
Marking and designation
Appearance quality
SJ20682--1998
Continued Table 9
Quality-conformity test
Required
Chapter number
Note: The symbol with "○" in the table indicates mandatory items, and the symbol with "公" indicates optional items as stipulated in the contract. 4.4.5 Identification and inspection cycle
Inspection method
Chapter number
Identification and inspection are generally only carried out when the design and production are finalized, but when there are major changes in the main design, process, components and materials of the module that affect the main performance of the module, identification and inspection should also be carried out. 4.5 Quality consistency inspection
Quality consistency inspection is divided into Group A, Group C and Group ID inspections. The submission of its inspection batch should comply with the provisions of Article 5.4.6 of GJB179A, and the defect classification is stipulated by the product specification. 4.5.1 Group A inspection
4.5. 1.1 Inspection items
See Table 9 for Group A inspection items.
4.5.1.2 Sampling plan
Unless otherwise specified, the relevant provisions of GJB179A shall apply. The inspection shall start with normal inspection and adopt a normal inspection sampling plan of general inspection level II: The acceptable quality level AQL is selected from Table 10-9
Defect category
Serious defect
Minor defect
4.5.1.3 Qualification criterion
SJ 20682—1998
Acceptable quality level AQL value
Based on the inspection results, if the number of defects found is not greater than the specified qualified judgment number, the batch A group inspection is judged to be qualified, otherwise the batch A group inspection is judged to be unqualified, 4.5.1.4 New inspection
For batches that fail the Group A inspection, the contractor shall analyze the modules of the batch, find out the causes of the defects and take corrective measures before resubmitting for inspection. The re-inspected batch shall be separated from the new batch and marked with "resubmitted batch". The re-inspection shall be conducted with stricter inspection. If the re-inspection is qualified, the batch is judged to have passed the Group A inspection. If it is still unqualified, the batch shall be rejected.
4.5.1.5 Sample processing
For batches that have passed the Group A inspection, the defective samples can be repaired and meet the specified performance requirements before delivery according to the contract.
4.5.2 Group C inspection
Group C inspection shall be conducted on the batches that have passed Group A inspection: 4.5.2.1 Inspection items
Group C inspection items shall be selected from Table 9 according to the module type and the requirements of this specification. 4.5.2.2 Sampling plan
Unless otherwise specified, the sampling plan for Group C inspection shall be carried out in accordance with the relevant provisions of GJB179A. The inspection shall start from the normal inspection and adopt the special inspection level S-4 normal inspection sampling plan. The acceptable quality level AQL shall be selected from Table 10.
4.5.2.3 Qualification criterion
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the Group C inspection shall be judged to be qualified, otherwise the batch shall be judged to be unqualified.
4.5.2.4 Sample handling
Unless otherwise specified, samples inspected by Group C shall be repaired by the contractor for any damage found or present and delivered as qualified products after passing Group A inspection: 4.5.2.5 Inspection cycle
Unless otherwise specified, Group C inspection shall be conducted once every three batches, but not less than once a year. If there are major changes in the design, process, components or materials of the module that affect the main performance, it should also be conducted. - 10 -
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