CN110350653A - A kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform - Google Patents
A kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform Download PDFInfo
- Publication number
- CN110350653A CN110350653A CN201910637892.9A CN201910637892A CN110350653A CN 110350653 A CN110350653 A CN 110350653A CN 201910637892 A CN201910637892 A CN 201910637892A CN 110350653 A CN110350653 A CN 110350653A
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- airborne
- power supply
- storage capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims abstract description 44
- 230000005611 electricity Effects 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 102220007331 rs111033633 Human genes 0.000 description 1
- 102220264750 rs1305455942 Human genes 0.000 description 1
- 102220012898 rs397516346 Human genes 0.000 description 1
- 102220095236 rs876658436 Human genes 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
A kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform.The present invention proposes a kind of power supply switching control system circuit with boost function, including main power circuit, voltage comparator circuit, boosting charge-discharge circuit and voltage follower circuit；Main power circuit connects airborne DC supply input Vin+With control circuit output end Vout+Between, to photoelectric stable platform back-end function module for power supply in the case where stablizing for airborne direct current supply；Input voltage is increased to 32V and charged to storage capacitor by boosting charge-discharge circuit；Voltage comparator circuit uses hysteresis comparator, real-time more airborne DC supply input voltage, after airborne DC supply input voltage is less than 18V, voltage comparator circuit exports low level, and later only when airborne DC supply input voltage be greater than 22V when, voltage comparator circuit just exports high level.Compact of the present invention can be placed in secondary power supply component, using storage capacitor existing in component it is ensured that system meets the requirement of new edition standard, not need to redesign furnished airborne photoelectric stabilized platform.
Description
Technical field
The invention belongs to power technique fields, relate generally to a kind of airborne power supply, and more particularly, to airborne photoelectric is stablized
The stable DC power supply conversion control circuit of platform.
Background technique
Photoelectric stable platform is that one kind is mounted on motion carrier and scans for, aims to target, tracking, irradiating and ranging
Optoelectronic device.Multiple sensors and various functions module are integrated in photoelectric stable platform, signal are handled, operation,
Therefore it is necessary for photoelectric stable platform and configures D.C. regulated power supply as shown in Figure 1, then via direct current in photoelectric stable platform
Turn DC voltage needed for direct current (DC/DC) secondary power supply conversion module is converted into each sensor and functional module.Fig. 1 is light
Electric stabilized platform power supply system schematic diagram.
On machine in 28V DC power-supply system, when normal work, is powered by main power source；In engine start, break down
Deng in special circumstances, powered by accessory power supplys such as batteries, the case where this there is power supply power supply conversion.It is advised in old edition standard
Fixed, in busbar or power supply transition status, power-off time is not greater than 50ms, that is, requires system to meet in 28V power supply, wink
Between power off 50ms within, photoelectric stable platform still is able to work normally.This is solved the problems, such as in the past, is increased in secondary power supply component
Add a large capacity energy storage tantalum capacitor, the tantalum capacitor charging energy storage when inputting normal power supply 28V, during input powers off 50ms,
Storage capacitor, which discharges, gives secondary power supply module (DC/DC) continued power, guarantees that photoelectric stable platform being capable of normal work in 50ms
Make.But with the submission of performance requirement, new edition standard requirements system is when 22V powers, opto-electric stabilization within instant cut-off 50ms
Platform can still work normally.It is 28V relative to power-off voltage before, capacitor energy storage when 22V is fully charged is reduced, is not enough to
Normal work of the maintenance system during power-off, this just needs the storage capacitor in secondary power supply component to increase capacity, leads to electricity
Volume product is excessive, so that the volume of power module becomes larger, so that placing the bulk of the photoelectric stable platform of power module
To become larger accordingly, have been equipped with type for some, no exceptional space arranges higher volume of photoelectric stable platform；Another party
The capacity in face, large capacity tantalum capacitor is directly proportional to price, and cost is caused greatly to increase.
Summary of the invention
In view of the above technical problems, constant and do not increase considerably cost for the structure size in photoelectric stable platform
Under the premise of, meeting system in new edition standard, in 22V power supply, photoelectric stable platform still is able to normally within instant cut-off 50ms
The requirement of work, the present invention propose a kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform, its body
Product is small and exquisite can be placed in secondary power supply component, using storage capacitor existing in component it is ensured that system meets new edition
The requirement of standard.As shown in figure 3, airborne normal input voltage is 22V~32V, boost module N1 can be increased input voltage
It charges to 32V to storage capacitor, is increased without capacitance in this way.When powering normal, capacitor remains fully charged 32V's
State is not discharged to rear end；When power is off, capacitor discharges, and maintains system worked well.
Based on the above principles, technical solution of the present invention are as follows:
A kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform, it is characterised in that: packet
Include main power circuit, voltage comparator circuit, boosting charge-discharge circuit and voltage follower circuit；Wherein main power circuit, voltage
Comparison circuit and boosting charge-discharge circuit are attempted by between the anode of airborne power supply and ground；
The main power circuit connects airborne DC supply input Vin+With control circuit output end Vout+Between, it is used for
To photoelectric stable platform back-end function module for power supply in the case that airborne direct current supply is stable；
The boosting charge-discharge circuit is by boost module N1, diode V1 and V2, current-limiting resistance and storage capacitor C1 group
At；
Diode V1 connects in boost module N1 input port VN1in, after preventing storage capacitor C1 to be full of, to input terminal Vin+It puts
Electricity；Voltage input end V of the airborne DC supply input to boost module N1N1in, when airborne DC supply input voltage 22V~
When 32V, after boosted module N1 boosting, the output voltage V of boost module N1N1outFor 32V；
Current-limiting resistance is in parallel with diode V2, prevents storage capacitor C1 from damaging in charging because electric current is excessive；Work as energy storage
When capacitor discharges, the impedance of diode V2 is less than current-limiting resistance, and electric current exports after flowing through diode V2 to voltage follower circuit；
The voltage comparator circuit uses hysteresis comparator, in real time more airborne DC supply input voltage, when airborne straight
Power input voltage is flowed less than after 18V, and voltage comparator circuit exports low level, and only works as airborne DC supply input later
When voltage is greater than 22V, voltage comparator circuit just exports high level；
When the voltage comparator output is low level, the metal-oxide-semiconductor in voltage follower circuit is connected, and storage capacitor C1 passes through
Voltage follower circuit gives photoelectric stable platform back-end function module discharge；When voltage comparator output is high level, voltage output
MOS shutdown in circuit.
Further preferred embodiment, a kind of stable DC power supply conversion and control electricity for airborne photoelectric stabilized platform
Road, it is characterised in that: contain a diode V7, when for preventing voltage follower circuit to be connected, storage capacitor in main power circuit
C1 is along main power circuit to input terminal Vin+Electric discharge.
Beneficial effect
Compact of the present invention can be placed in secondary power supply component, utilize existing storage capacitor energy in component
Guarantee that system meets the requirement of new edition standard, does not need to redesign furnished airborne photoelectric stabilized platform.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 photoelectric stable platform power supply system schematic diagram；
Fig. 2 photoelectric stable platform power supply conversion and control schematic diagram；
Fig. 3 power supply switching control system circuit diagram.
Specific embodiment
The invention proposes a kind of power supply switching control system circuit with boost function, its compact can be placed
In secondary power supply component, using storage capacitor existing in component it is ensured that system meets the requirement of new edition standard.Such as
Shown in Fig. 3, airborne normal input voltage is 22V~32V, and input voltage can be increased to 32V and give energy storage electricity by boost module N1
Capacity charge is increased without capacitance in this way.When powering normal, capacitor remains the state of fully charged 32V, does not give rear end
Electric discharge；When power is off, capacitor discharges, and maintains system worked well.
One, circuit forms
Switching control system circuit power by main power circuit, voltage comparator circuit, boosting charge-discharge circuit and voltage
Four part of output circuit composition.Wherein main power circuit, voltage comparator circuit and boosting charge-discharge circuit are attempted by airborne electricity
Between the anode and ground in source.
Two, working condition
1. main power circuit work is in the case where airborne direct current supply is stablized；
2. the charge-discharge circuit that boosts includes two parts: boost module and charge-discharge circuit.Airborne input voltage 22V~
When 32V, boost module output voltage is 32V.Charge-discharge circuit working condition is charging, keeps full electricity or discharge mode；3.
Voltage comparator circuit uses hysteresis comparator, and when more airborne supply voltage is less than 18V (power-off) in real time, comparator output is
0V；When supply voltage is greater than 22V (normal work), comparator output is 12V.
4. voltage comparator output is 0V (power-off), the metal-oxide-semiconductor in voltage follower circuit is connected, and storage capacitor is to rear end
Electric discharge；When voltage comparator output is 12V (normal work), the MOS in voltage follower circuit is turned off, and storage capacitor keeps full electricity
State.
Three, each section composition and working principle
1, contain a diode V7 in main power circuit, when V6 being prevented to be connected, storage capacitor C1 is along main power circuit to defeated
Enter to hold Vin+Electric discharge.
2, boosting charge-discharge circuit is by boost module N1, diode V1 and V2, resistance R6, R7, R8 and storage capacitor C1
Composition.Diode V1 connects in boost module N1 input port VN1in, after preventing storage capacitor C1 to be full of, to input terminal Vin+Electric discharge.
There are three terminals, respectively V for boost moduleN1in、VN1outAnd GND.Working principle is as follows: the airborne voltage for being input to boost module
VN1inIn 22V~32V, after boosted, output voltage VN1outFor 32V.Resistance R6, R7, R8 are in parallel with diode V2,
R6, R7, R8 are current-limiting resistance, are shielded, and prevent storage capacitor C1 from damaging in charging because electric current is excessive.When energy storage electricity
When discharge capacitor, because the impedance of diode V2 is less than resistance R6, R7, R8, electric current exports after flowing through diode V2.
The capacity of storage capacitor calculates according to the following formula:
Vt=Ee-t/RC
Wherein: Vt:t moment capacitance voltage value, which meets, to be worked normally；
T: power-off time 50ms；
R: estimated value；
E: being 32V full of capacitance voltage.
3, comparator N2, resistance R1, R2, R3, R4, R9 constitute hysteresis comparator in voltage comparator circuit.The work of N2
Voltage is 12V, is connect on " 1 " of N2, " 2 " pin respectively.The benchmark voltage VCC of N2 is 2.5V, is connected to N2 "-" end
Son.Resistance R1, R2 are divider resistance, connect after in parallel with R3, are connected to the "+" leads ends of comparator N2.Resistance R9 is current limliting
Resistance is connected on comparator output pin end " 3 ".Feedback resistance of the resistance R4 as comparator N2.Using same in the design
Mutually input hysteresis comparator, if poor anti jamming capability, circuit is very sensitive at overturning point, i.e., defeated using general comparator
Enter voltage from be greater than be less than or from be less than be greater than overturning point voltage change when, output will all be flipped.That is,
In power process, if input voltage fluctuates near 18V~22V, the output state of comparator is indefinite, storage capacitor
It is likely to be at the state discharged or kept repeatedly.Homophase input hysteresis comparator is used in the design, during system cut-off,
When input voltage vin+decline is slightly less than 18V, circuit will be flipped, and N2 output voltage immediately becomes 0V, at this moment, even if by
In airborne input voltage fluctuation, Vin+ rises to 18V or more, and (as long as unlike 22V high, △ V=22-18=4V is determined by R3, R4
It is fixed), circuit will not be overturn back, and N2 output will maintain 0V constant.This ensures that during power down, V6 is in absolutely conducting
State guarantees the continuous discharge of capacitor electricity.And during system electrification, when input voltage is greater than 22V, circuit overturning, energy storage
Capacitor charging, V6 are in absolute off state, in full electric hold mode after storage capacitor is fully charged.
Voltage comparator circuit working principle:
Work as VN2+>VN2-When, comparator output+12V；
Work as VN2+<VN2-When, comparator output voltage levels off to zero；
4, voltage follower circuit include triode V3, V4, zener diode V5, metal-oxide-semiconductor V6, resistance R10, R11, R12,
R13.Wherein resistance R12, R13 connects, and is divider resistance.V3 is NPN type triode, works as Vb>VeWhen, collector is connected with emitter-base bandgap grading.
V4 is PNP type triode, works as Ve>VbWhen, collector is connected with emitter-base bandgap grading.Zener diode V5 shields to metal-oxide-semiconductor V6.
Four, entire circuit system working principle
Main power circuit, voltage comparator circuit and boosting charge-discharge circuit be attempted by airborne power supply anode and ground it
Between, airborne DC power supply power supply starts, and boosting follows charge-discharge circuit to work at the same time with voltage comparator circuit.
After system normally powers on, input voltage is increased to 32V by the boost module in the charge-discharge circuit that boosts, as energy storage
The input of capacitor charging.After storage capacitor is full of, it is always maintained at full power state.
1, the voltage value of voltage comparator circuit more airborne input in real time, when input voltage is (i.e. airborne to power on just greater than 22V
Often work) when:
A point voltage are as follows:V at this timeA>VCC2.5, comparator N2 output end output voltage is+12V.Three
Emitter voltage V in pole pipe V3e=Vout-=0, Vb>Ve, triode V3 collector c is connected with emitter e (when triode is in
On state, Vce≈0.3V).At this point, the emitter voltage V of triode V4e>Vb, (V is connected with emitter e the collector c of V4ce
≈ 0.3V), that is, the V of metal-oxide-semiconductor V6g≈Vs, the source level of V6 and drain electrode are not turned on.Therefore when airborne input voltage is greater than 22V
(airborne normal work), storage capacitor will not discharge to rear end.
2, when input voltage is less than 18V (i.e. airborne unexpected power-off):
A point voltage are as follows:V at this timeA<VCC, comparator output terminal output is 0V.B point in triode V3
Voltage is equal to e point voltage, i.e. Vb=Ve, collector c and the emitter e of triode V3 be not turned on, and V3 is in open-circuit condition, three poles
Pipe V4 is also not turned on, and is in open-circuit condition, and since the partial pressure of R12 and R13 acts on, the s point voltage of metal-oxide-semiconductor V6 is higher than g point voltage
Value, and (Vs-Vg)>Von(VonFor the fully on voltage of metal-oxide-semiconductor), V6 conducting.The output of storage capacitor electric discharge at this time 32V.Therefore
When airborne input voltage is less than 18V (power-off), charge-discharge circuit electric discharge is that photoelectric stable platform secondary power supply conversion module is defeated
Enter 32V, to guarantee when airborne supply voltage 22V power supply, powering off photoelectric stable platform in 50ms suddenly can still work
Normally.
R6=R7=R8=600 Ω in the present embodiment, C1=16000uF, R1=75K Ω, R2=10k Ω, R3=100
Ω, R4=200K Ω, R12=20K Ω, R13=10K Ω, R9=1K Ω, R10=R11=20K Ω
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (2)
- The conversion control circuit 1. a kind of stable DC for airborne photoelectric stabilized platform is powered, it is characterised in that: including main function Rate circuit, voltage comparator circuit, boosting charge-discharge circuit and voltage follower circuit；Wherein main power circuit, voltage are more electric Road and boosting charge-discharge circuit are attempted by between the anode of airborne power supply and ground；The main power circuit connects airborne DC supply input Vin+With control circuit output end Vout+Between, for airborne straight To photoelectric stable platform back-end function module for power supply in the case where stream powered stable；The boosting charge-discharge circuit is made of boost module N1, diode V1 and V2, current-limiting resistance and storage capacitor C1；Diode V1 connects in boost module N1 input port VN1in, after preventing storage capacitor C1 to be full of, to input terminal Vin+Electric discharge；Machine Voltage input end V of the load DC supply input to boost module N1N1in, when airborne DC supply input voltage is in 22V~32V When, after boosted module N1 boosting, the output voltage V of boost module N1N1outFor 32V；Current-limiting resistance is in parallel with diode V2, prevents storage capacitor C1 from damaging in charging because electric current is excessive；Work as storage capacitor When electric discharge, the impedance of diode V2 is less than current-limiting resistance, and electric current exports after flowing through diode V2 to voltage follower circuit；The voltage comparator circuit uses hysteresis comparator, in real time more airborne DC supply input voltage, when airborne direct current After source input voltage is less than 18V, voltage comparator circuit exports low level, and only works as airborne DC supply input voltage later When greater than 22V, voltage comparator circuit just exports high level；When the voltage comparator output is low level, the metal-oxide-semiconductor in voltage follower circuit is connected, and storage capacitor C1 passes through voltage Output circuit gives photoelectric stable platform back-end function module discharge；When voltage comparator output is high level, voltage follower circuit In MOS shutdown.
- 2. a kind of airborne direct current supply conversion control circuit according to claim 1, it is characterised in that: contain in main power circuit One diode V7, when for preventing voltage follower circuit to be connected, storage capacitor C1 is along main power circuit to input terminal Vin+It puts Electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910637892.9A CN110350653A (en) | 2019-07-15 | 2019-07-15 | A kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910637892.9A CN110350653A (en) | 2019-07-15 | 2019-07-15 | A kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110350653A true CN110350653A (en) | 2019-10-18 |
Family
ID=68175339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910637892.9A Pending CN110350653A (en) | 2019-07-15 | 2019-07-15 | A kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110350653A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797966A (en) * | 2019-10-25 | 2020-02-14 | 天津航空机电有限公司 | A redundant power supply circuit with hysteresis |
| CN112003464A (en) * | 2020-06-30 | 2020-11-27 | 中国航发南方工业有限公司 | Power-down holding circuit for switching power supply of airborne electronic equipment |
| CN112865286A (en) * | 2019-11-28 | 2021-05-28 | 北京龙坤盛达科技有限公司 | Airborne bus bar conversion power-off control power-on delay system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036284A (en) * | 2012-12-07 | 2013-04-10 | 陕西千山航空电子有限责任公司 | Aviation onboard recorder independent power supply |
| CN105043173A (en) * | 2015-08-26 | 2015-11-11 | 成都天博威科技有限公司 | Delay detonation control circuit |
| CN205039514U (en) * | 2015-09-06 | 2016-02-17 | 洛阳隆盛科技有限责任公司 | Effectively reduce energy -storage capacitor's circuit protector against power failure |
| CN205846859U (en) * | 2016-08-05 | 2016-12-28 | 重庆悦泰科技有限公司 | DC uninterrupted remote electric power system |
| CN106340944A (en) * | 2016-10-05 | 2017-01-18 | 焦桂花 | An airborne DC power supply system power failure maintenance power supply device |
| CN206060347U (en) * | 2016-08-31 | 2017-03-29 | 飞亚达（集团）股份有限公司 | A kind of airborne benchmark timekeeping system electric power controller |
| CN106936208A (en) * | 2016-12-08 | 2017-07-07 | 苏州长风航空电子有限公司 | One kind boosting maintains control circuit |
| JP2017175830A (en) * | 2016-03-25 | 2017-09-28 | ニチコン株式会社 | Power storage system |
| CN207691497U (en) * | 2018-01-14 | 2018-08-03 | 广西电网有限责任公司河池供电局 | A kind of super capacitor charge and discharge device |
| CN109687572A (en) * | 2018-12-29 | 2019-04-26 | 国家电网有限公司 | Electric power 48V direct current supply switching device |
-
2019
- 2019-07-15 CN CN201910637892.9A patent/CN110350653A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036284A (en) * | 2012-12-07 | 2013-04-10 | 陕西千山航空电子有限责任公司 | Aviation onboard recorder independent power supply |
| CN105043173A (en) * | 2015-08-26 | 2015-11-11 | 成都天博威科技有限公司 | Delay detonation control circuit |
| CN205039514U (en) * | 2015-09-06 | 2016-02-17 | 洛阳隆盛科技有限责任公司 | Effectively reduce energy -storage capacitor's circuit protector against power failure |
| JP2017175830A (en) * | 2016-03-25 | 2017-09-28 | ニチコン株式会社 | Power storage system |
| CN205846859U (en) * | 2016-08-05 | 2016-12-28 | 重庆悦泰科技有限公司 | DC uninterrupted remote electric power system |
| CN206060347U (en) * | 2016-08-31 | 2017-03-29 | 飞亚达（集团）股份有限公司 | A kind of airborne benchmark timekeeping system electric power controller |
| CN106340944A (en) * | 2016-10-05 | 2017-01-18 | 焦桂花 | An airborne DC power supply system power failure maintenance power supply device |
| CN106936208A (en) * | 2016-12-08 | 2017-07-07 | 苏州长风航空电子有限公司 | One kind boosting maintains control circuit |
| CN207691497U (en) * | 2018-01-14 | 2018-08-03 | 广西电网有限责任公司河池供电局 | A kind of super capacitor charge and discharge device |
| CN109687572A (en) * | 2018-12-29 | 2019-04-26 | 国家电网有限公司 | Electric power 48V direct current supply switching device |
Non-Patent Citations (1)
| Title |
|---|
| 杜培德等: "一种实现50ms断电维持供电的电路设计", 《微电子学》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797966A (en) * | 2019-10-25 | 2020-02-14 | 天津航空机电有限公司 | A redundant power supply circuit with hysteresis |
| CN112865286A (en) * | 2019-11-28 | 2021-05-28 | 北京龙坤盛达科技有限公司 | Airborne bus bar conversion power-off control power-on delay system |
| CN112003464A (en) * | 2020-06-30 | 2020-11-27 | 中国航发南方工业有限公司 | Power-down holding circuit for switching power supply of airborne electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11871796B2 (en) | Voltage output circuit for electronic cigarette and electronic cigarette using circuit | |
| CN110350653A (en) | A kind of stable DC power supply conversion control circuit for airborne photoelectric stabilized platform | |
| CN108879824B (en) | Integrated rechargeable battery protection function circuit | |
| CN207010317U (en) | Battery protection chip, power supply device and electronic cigarette | |
| US10312808B2 (en) | Power supply and power control method thereof | |
| CN105075044A (en) | Transient suppression with lossless steady state operation | |
| CN109922563B (en) | Emergency light device and emergency light control integrated circuit | |
| CN211508882U (en) | Bootstrap starting circuit for widening input voltage range | |
| CN209692611U (en) | Relative constant CMOS charge pump is exported based on wide-range input voltage | |
| CN210517858U (en) | Terminal power supply circuit and terminal | |
| CN108768356B (en) | Power-on self-locking control circuit and power supply | |
| CN217183014U (en) | Capacitor charging self-locking circuit | |
| CN117526543A (en) | Power supply system adopting solar panel and battery dual power supply | |
| CN217362594U (en) | A lithium battery protection board positive end protection drive control circuit | |
| CN209748236U (en) | Discrete power supply charging circuit | |
| CN211089223U (en) | Vehicle navigation MCU power supply circuit capable of improving power-on stability | |
| CN113296567B (en) | Voltage self-following reverse-filling prevention circuit | |
| CN212969138U (en) | Device for simulating rechargeable battery characteristics by using capacitor | |
| CN210468847U (en) | Battery charging circuit based on DC-DC power supply chip | |
| CN209133839U (en) | A kind of semiconductor laser pumping power supply | |
| CN210111682U (en) | Unmanned aerial vehicle power supply system | |
| CN109586363B (en) | Charging circuit | |
| CN113525172A (en) | Lithium battery integrated protection plate, power battery pack and electric vehicle | |
| CN206947934U (en) | Short-circuit protection circuit and BOOST circuit | |
| CN217956942U (en) | Low-power-consumption memory starting circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191018 |
|
| WD01 | Invention patent application deemed withdrawn after publication |