CN105553251A - Secondary power supply converter with electromagnetic compatibility module - Google Patents
Secondary power supply converter with electromagnetic compatibility module Download PDFInfo
- Publication number
- CN105553251A CN105553251A CN201610073965.2A CN201610073965A CN105553251A CN 105553251 A CN105553251 A CN 105553251A CN 201610073965 A CN201610073965 A CN 201610073965A CN 105553251 A CN105553251 A CN 105553251A
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- Prior art keywords
- power supply
- input
- circuit
- electromagnetic compatibility
- filtering
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a secondary power supply converter with an electromagnetic compatibility module. The secondary power supply converter comprises logic circuits, input filter circuits, DC/DC conversion circuits and a plurality of groups of output filter circuits, wherein the input filter circuits are in a four-stage filtering form; each group of output filter circuits comprise single-stage filter circuits; filter capacitors are arranged at the front end and the rear end of an inductor; and an integrated design is adopted by the power supply converter. The power supply converter is an important part in a bomb bay and can provide voltages required for normal working to electronic components of a guidance and control system and other guidance and control components under the condition that a primary power supply provides a voltage signal meeting the requirements no matter in a flight state or a ground test state. Integrated separate shielding shell design is carried out on a filter and a DC/DC power supply module, so that volume miniaturization, modularization and unitization are achieved; the efficiency is improved; and the consistency, the electromagnetic compatibility and the reliability all reach high requirements.
Description
Technical field
The present invention relates to a kind of supply convertor, specifically, relate to a kind of supply convertor with electromagnetic compatibility module.
Background technology
Traditional power supply adopts separate piece design usually, and ubiquity integrated level is not high, and Electro Magnetic Compatibility is poor, the shortcoming such as the low and reliability of power is low.Particularly in military and national defence, the requirement of high-end equipment such as such as rocket, guided missile etc. to power supply is higher, not only there is strict requirement at power, reliability and volume, higher requirement is then had in Electro Magnetic Compatibility, be disturb mutually between signal, radiation on circuit, all there is strict requirement the aspect such as shielding, the isolation of intermodule, ground connection performance of system between unit, otherwise will can not estimate the consequence that system causes, system in design and affected process is needed to solve, and by strict experimental verification.
Summary of the invention
The present invention designs to solve the problems of the technologies described above and a kind of secondary power supply converter with electromagnetic compatibility module just.
The technical solution adopted for the present invention to solve the technical problems is:
There is a secondary power supply converter for electromagnetic compatibility module, comprise logical circuit, input filter circuit, DC/DC translation circuit and output filter circuit; Logical circuit adopts the method for series diode to realize input polarity protection; and input power is distributed to input filter circuit; input filter circuit exports to DC/DC translation circuit after mainly being fallen by direct current entrance spike interference filtering, and prime direct voltage is that required low-voltage dc voltage and energy transferring are to output filter circuit through high frequency switching converter by DC/DC translation circuit.Input filter circuit is level Four filtering, and the first order is the filtering of differential mode inductance π type, and each differential mode inductance is provided with low frequency ceramic video disc electric capacity between line, can suppress the conducted interference of low-frequency range; The second level and the third level adopt common mode inductance filtering, and each common mode inductance is provided with high-frequency ceramic video disc electric capacity between line, effectively can suppress the conducted interference of middle and high frequency range; The fourth stage is two TVS pipe in parallel between input, in order to absorb surge and the peak voltage of input; Output filter circuit is divided into many groups, and often group is made up of single stage filtering circuit, and all has filter capacitor before and after inductance; Supply convertor adopts integrated point of chamber screening can design.
The described secondary power supply converter with electromagnetic compatibility module, its integrated point of chamber screening can is that six aluminum alloy casings realize bulk shielding, six aluminum alloy casing inside are three cavitys shielded each other, be input filter unit in first cavity, being power module input logic diode in second cavity, is output filtering unit in the 3rd cavity; Filter masks sheathing material thickness is 0.3mm, adopts the technology of laser welding to be welded, electromagnetic leakage is reduced to minimum.
The described secondary power supply converter with electromagnetic compatibility module, its output filter circuit is divided into 8 groups.
The described secondary power supply converter with electromagnetic compatibility module, its six aluminum alloy casings ground exports between ground with power supply and separate, is insulate mutually, is connected by mounting screw and whole application system six aluminum alloy casings.
The present invention, owing to which employs integrative packaging structure, makes the operating state that still can maintain a long-term stability under the rigor condition such as humidity, vibratory impulse, corrosion and mould.Simultaneously for strengthening converter Electro Magnetic Compatibility, cavity-separating design is have employed in assembled inside process, mains input side, outlet side and main power conversion part are effectively isolated, the Third Party Authentication work of the total Test of the EMC Requirements that the present invention has been specified by GJB151A-1997.
The present invention adopts single-ended reverse exciting, single ended forward circuit, Forward-flyback and push-pull circuit, with the military products module in company standard series of products for core, coordinates a small amount of peripheral components, and realizing circuit integration is formed; Traditional LC filtering mode has been broken in electromagnetic compatibility, have employed the mode of level Four filtering, round the special filter of structural design of secondary power supply, ensure that the special secondary power supply of missile-borne guided rocket bullet can normally work when electromagnetic environment is disturbed, power to guidance control system; When designing, the key point of bottom module is all drawn out to top layer with pin, and be convenient to the debugging in production process, input and output all have employed AN connector, have met the requirement of interchangeability and testability; Structural design adopts the structure of six metallic shields, and use Digit Control Machine Tool processing, the precision of processing is guaranteed, in radiation proof, occupy advantage.
The invention has the beneficial effects as follows:
1. function admirable.
The present invention is directed to conventional power source Electro Magnetic Compatibility and carry out brand-new design and perfect, ensure that circuit normally works.
2. simple circuit, working stability.
The present invention adopt high-performance, high life and high reliability DC/DC conversion module as main power conversion unit, this modular unit is inner by thin consolidation such as PWM control, DC/DC conversion, output overvoltage, overcurrent and short-circuit protection circuits together.
3. Electro Magnetic Compatibility is strong, applied widely.
This has and has very strong Electro Magnetic Compatibility feature, by adopting cavity-separating design, effectively can reduce between the inner each several part circuit of converter and the impact of mutual electromagnetic interference between converter and external equipment, greatly having widened the occasion of its application.
Accompanying drawing explanation
Fig. 1 is the special converter principle block diagram that secondary power supply of the present invention has electromagnetic compatibility module.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1, a kind of secondary power supply converter with electromagnetic compatibility module, comprises logical circuit, input filter circuit, DC/DC translation circuit and output filter circuit; Logical circuit adopts the method for series diode to realize input polarity protection; and input power is distributed to input filter circuit; input filter circuit exports to DC/DC translation circuit after mainly being fallen by direct current entrance spike interference filtering, and prime direct voltage is that required low-voltage dc voltage and energy transferring are to output filter circuit through high frequency switching converter by DC/DC translation circuit.Input filter circuit is level Four filtering, and the first order is the filtering of differential mode inductance π type, and each differential mode inductance is provided with low frequency ceramic video disc electric capacity between line, can suppress the conducted interference of low-frequency range; The second level and the third level adopt common mode inductance filtering, and each common mode inductance is provided with high-frequency ceramic video disc electric capacity between line, effectively can suppress the conducted interference of middle and high frequency range; The fourth stage is two TVS pipe in parallel between input, in order to absorb surge and the peak voltage of input; Output filter circuit is divided into many groups, and often group is made up of single stage filtering circuit, and all has filter capacitor before and after inductance; Supply convertor adopts integrated point of chamber screening can design.
The described secondary power supply converter with electromagnetic compatibility module, its integrated point of chamber screening can is that six aluminum alloy casings realize bulk shielding, six aluminum alloy casing inside are three cavitys shielded each other, be input filter unit in first cavity, being power module input logic diode in second cavity, is output filtering unit in the 3rd cavity; Filter masks sheathing material thickness is 0.3mm, adopts the technology of laser welding to be welded, electromagnetic leakage is reduced to minimum.
The described secondary power supply converter with electromagnetic compatibility module, its output filter circuit is divided into 8 groups.
The described secondary power supply converter with electromagnetic compatibility module, its six aluminum alloy casings ground exports between ground with power supply and separate, is insulate mutually, is connected by mounting screw and whole application system six aluminum alloy casings.
Embodiment of the present invention W type secondary power supply has the special converter of electromagnetic compatibility module in the design process for capturing the problems such as signal, circuit, shielding, ground connection, isolation, and the major measure taked comprises:
A) shielding design
The special converter that W type secondary power supply has electromagnetic compatibility module adopts the design of complete machine shield technology, utilizes self six aluminum alloy casing to realize bulk shielding.
The special converter design of filter that W type secondary power supply has electromagnetic compatibility module is the cavity that three parts shield each other, and Part I is input filter unit, and Part II is power module input logic diode, and Part III is output filtering unit.Filter masks shell 0.3mm copper coin, adopts the technology of laser welding to be welded, electromagnetic leakage is reduced to minimum.
B) grounding design
W type secondary power supply exports between ground with power supply and separates with having the casing of the special converter of electromagnetic compatibility module, is insulation mutually, relies on mounting screw to be connected with whole bullet system.
C) filtering technique
Input filtering circuit design is level Four filtering, and the first order is the filtering of differential mode inductance π type, and each differential mode inductance is provided with low frequency ceramic video disc electric capacity between line, can suppress the conducted interference of low-frequency range.The second level, the filtering of three grades of employing common mode inductances, each common mode inductance is provided with high-frequency ceramic video disc electric capacity between line, effectively can suppress the conducted interference of middle and high frequency range.The fourth stage is two TVS pipe in parallel between input, in order to absorb surge and the peak voltage of input.
Output filter circuit is divided into 8 groups, and often group is made up of single stage filtering circuit, and all has filter capacitor before and after inductance.
By designing integrated to filter, DC-DC power module and integration point chamber screening can above, achieve volume miniaturization, modularization, blocking, efficiency improves, and consistency, electromagnetic compatibility and reliability all reach very high request.
The present invention is not limited to above-mentioned preferred forms, anyone other any or akin products identical with the present invention drawn under enlightenment of the present invention, all drops within protection scope of the present invention.
Claims (4)
1. there is a secondary power supply converter for electromagnetic compatibility module, comprise logical circuit, input filter circuit, DC/DC translation circuit and output filter circuit; Logical circuit adopts the method for series diode to realize input polarity protection, and input power is distributed to input filter circuit, input filter circuit exports to DC/DC translation circuit after mainly being fallen by direct current entrance spike interference filtering, and prime direct voltage is that required low-voltage dc voltage and energy transferring are to output filter circuit through high frequency switching converter by DC/DC translation circuit; It is characterized in that: input filter circuit is level Four filtering, the first order is the filtering of differential mode inductance π type, and each differential mode inductance is provided with low frequency ceramic video disc electric capacity between line, can suppress the conducted interference of low-frequency range; The second level and the third level adopt common mode inductance filtering, and each common mode inductance is provided with high-frequency ceramic video disc electric capacity between line, effectively can suppress the conducted interference of middle and high frequency range; The fourth stage is two TVS pipe in parallel between input, in order to absorb surge and the peak voltage of input; Output filter circuit is divided into many groups, and often group is made up of single stage filtering circuit, and all has filter capacitor before and after inductance; Supply convertor adopts integrated point of chamber screening can design.
2. the secondary power supply converter with electromagnetic compatibility module according to claim 1, it is characterized in that: integrated point of chamber screening can is that six aluminum alloy casings realize bulk shielding, six aluminum alloy casing inside are three cavitys shielded each other, be input filter unit in first cavity, being power module input logic diode in second cavity, is output filtering unit in the 3rd cavity; Filter masks sheathing material thickness is 0.3mm, adopts the technology of laser welding to be welded, electromagnetic leakage is reduced to minimum.
3. the secondary power supply converter with electromagnetic compatibility module according to claim 1, is characterized in that: output filter circuit is divided into 8 groups.
4. the secondary power supply converter with electromagnetic compatibility module according to claim 2, it is characterized in that: six aluminum alloy casing ground export between ground with power supply and separate, be insulation mutually, six aluminum alloy casings ground is connected by mounting screw and whole application system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610073965.2A CN105553251A (en) | 2016-02-02 | 2016-02-02 | Secondary power supply converter with electromagnetic compatibility module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610073965.2A CN105553251A (en) | 2016-02-02 | 2016-02-02 | Secondary power supply converter with electromagnetic compatibility module |
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| CN105553251A true CN105553251A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610073965.2A Pending CN105553251A (en) | 2016-02-02 | 2016-02-02 | Secondary power supply converter with electromagnetic compatibility module |
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| CN (1) | CN105553251A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020244294A1 (en) * | 2019-06-04 | 2020-12-10 | 深圳英飞源技术有限公司 | Power source module with shielding cover |
| CN112737615A (en) * | 2020-12-28 | 2021-04-30 | 成都美数科技有限公司 | Short wave direct acquisition receiver with ultrahigh intercept point |
| CN113708617A (en) * | 2021-08-20 | 2021-11-26 | 北京计算机技术及应用研究所 | High-power-density DC/DC power module integrated with EMI filtering |
| WO2024139866A1 (en) * | 2022-12-29 | 2024-07-04 | 华为数字能源技术有限公司 | Power converter |
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| CN2476134Y (en) * | 2000-12-29 | 2002-02-06 | 深圳市中兴通讯股份有限公司 | On-off power supply single phase input filter |
| CN202363968U (en) * | 2011-12-14 | 2012-08-01 | 陕西千山航空电子有限责任公司 | Dual-power input selection and power reverse connection prevention circuit |
| CN203967981U (en) * | 2014-06-27 | 2014-11-26 | 航天长峰朝阳电源有限公司 | High power density low ripple integrated power supply module |
| JP2015029364A (en) * | 2013-07-30 | 2015-02-12 | Ｎｅｃプラットフォームズ株式会社 | Power supply system, control method thereof and power supply control program |
| CN205377657U (en) * | 2016-02-02 | 2016-07-06 | 航天长峰朝阳电源有限公司 | Secondary power supply converter with electromagnetic compatibility module |
-
2016
- 2016-02-02 CN CN201610073965.2A patent/CN105553251A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476134Y (en) * | 2000-12-29 | 2002-02-06 | 深圳市中兴通讯股份有限公司 | On-off power supply single phase input filter |
| CN202363968U (en) * | 2011-12-14 | 2012-08-01 | 陕西千山航空电子有限责任公司 | Dual-power input selection and power reverse connection prevention circuit |
| JP2015029364A (en) * | 2013-07-30 | 2015-02-12 | Ｎｅｃプラットフォームズ株式会社 | Power supply system, control method thereof and power supply control program |
| CN203967981U (en) * | 2014-06-27 | 2014-11-26 | 航天长峰朝阳电源有限公司 | High power density low ripple integrated power supply module |
| CN205377657U (en) * | 2016-02-02 | 2016-07-06 | 航天长峰朝阳电源有限公司 | Secondary power supply converter with electromagnetic compatibility module |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020244294A1 (en) * | 2019-06-04 | 2020-12-10 | 深圳英飞源技术有限公司 | Power source module with shielding cover |
| CN112737615A (en) * | 2020-12-28 | 2021-04-30 | 成都美数科技有限公司 | Short wave direct acquisition receiver with ultrahigh intercept point |
| CN112737615B (en) * | 2020-12-28 | 2022-04-01 | 成都美数科技有限公司 | Short wave direct acquisition receiver with ultrahigh intercept point |
| CN113708617A (en) * | 2021-08-20 | 2021-11-26 | 北京计算机技术及应用研究所 | High-power-density DC/DC power module integrated with EMI filtering |
| WO2024139866A1 (en) * | 2022-12-29 | 2024-07-04 | 华为数字能源技术有限公司 | Power converter |
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Application publication date: 20160504 |
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