CN203015184U - DC power supply slow-on device of plane light modulating system - Google Patents
DC power supply slow-on device of plane light modulating system Download PDFInfo
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- CN203015184U CN203015184U CN2012206017680U CN201220601768U CN203015184U CN 203015184 U CN203015184 U CN 203015184U CN 2012206017680 U CN2012206017680 U CN 2012206017680U CN 201220601768 U CN201220601768 U CN 201220601768U CN 203015184 U CN203015184 U CN 203015184U
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- power supply
- power module
- supply module
- slow
- voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a DC power supply slow-on device of a plane light modulating system, comprising a power supply module. The device is characterized in that the output of power supply module enables connection between a control end and a slow-on control circuit. According to embodiments of the utility model, the power supply module is a large-power adjustable power supply module, and a voltage adjusting control end of the power supply module is connected with a voltage adjusting circuit. The DC power supply slow-on device has the advantages that the slow-on control circuit is added to the control end of the power supply module, and internal parameters of the slow-on control circuit can be configured, so that output of the power supply module lags behind input of the power supply module for corresponding configured time; and in the moment of electrification, the system outputs illumination light modulating voltage after working stably, thereby ensuring that brightness of illumination equipment is stable, preventing flash phenomena, and improving the total illumination effect of a control cabin of a plane.
Description
Technical field
The utility model relates to a kind of power supply control technology, be specifically related to the slow opening apparatus of a kind of aircraft light adjusting system DC power supply, be mainly used in aircraft cockpit light adjusting system DC power control, make the when electricity time-delay output aboard of light adjusting system out-put supply, guarantee the consistency of system's powered on moment state.
Background technology
The aircraft cockpit light adjusting system carries out brilliance control to luminaires such as the light guide plate in driving cabin, signal lamp, indicator light, table intraoral illumination and floodlights, and for the requirement to flight deck lighting whole structure and man-machine work efficiency, for under different ambient light illuminations, each luminaire all is in a suitable brightness, and the flight deck lighting system is towards systematization, integrated, integrated future development.Because the power supply on aircraft often fluctuates very large, when therefore each luminaire carries out brightness adjustment control in to driving cabin, in order to make luminaire obtain a stable power supply, common way is the secondary power supply that one of design can the regulation output voltage range, reaches the purpose of adjusting output voltage by the adjustable side voltage of controlling secondary power supply.Yet due to the uncertainty of system at powered on moment adjustable side voltage, cause system in the uncertainty of powered on moment output voltage, make the luminaire that system controls glittering phenomenon occur at system's powered on moment, affect driving cabin integral illumination effect.
The utility model content
This realizes that novel pin is to the existing deficiency of present aircraft light adjusting system, provide a kind of aircraft light adjusting system DC power supply slow opening apparatus, the elimination system causes the appearance of powered on moment luminaire glittering in the uncertainty of powered on moment output voltage, makes the aircraft cockpit illuminator reach stable, soft illuminating effect.
To achieve these goals, the technical solution of the utility model is as follows: the slow opening apparatus of a kind of aircraft light adjusting system DC power supply, comprise power module, the output enable control end that it is characterized in that described power module with drive slowly control circuit and be connected.According to specific embodiment of the utility model, described power module is the high power adjustable source module, and described power module voltage-regulation is controlled the termination voltage regulator circuit.The described control circuit of opening slowly comprises a transistor, this transistorized emitter is connected with the output enable control end of power module, this transistorized collector electrode is connected with the negative voltage input of power module, this transistorized base stage is connected with the output enable control end of power module by a resistance, this transistorized base stage also is connected with the positive pole of electric capacity, and the negative pole of this electric capacity is connected with transistorized collector electrode.
The beneficial effects of the utility model are, add at the control end of power module and drive slowly control circuit, and can be by the parameter of opening slowly control circuit internal capacitance and resistance be set, make the lag output of power module in the corresponding setup times of input, realization is exported the illumination dimmer voltage again at powered on moment after system works is stable, guarantee that the illumination light-emitting device brightness is stable, glittering phenomenon do not occur, improve aircraft cockpit integral illumination effect.
Description of drawings
Fig. 1 is theory diagram of the present utility model.
Embodiment
For further illustrating above-mentioned purpose of the present utility model, technical scheme and effect, by reference to the accompanying drawings the utility model is described in detail by the following examples.
As Fig. 1, open slowly the theory diagram of technology for DC power supply of the present utility model, form by opening slowly control circuit 1, power module 2 and voltage regulator circuit 3.Described power module comprises positive input voltage end+IN, negative input voltage end-IN, positive output voltage end+OUT, negative output voltage end-OUT, output enable control end PC and voltage-regulation control end SC.The output enable control end of power module 2 with drive slowly control circuit 1 and be connected, described power module 2 voltage-regulation are controlled termination voltage regulator circuits 3.
Slowly driving control circuit 1 is comprised of PNP silicon driving transistors Q1, resistance R 1 and capacitor C 1.The end of the emitter connecting resistance R1 of transistor Q1, the output enable control end that connects simultaneously power module 2 are the PC end; The other end of the base stage connecting resistance R1 of transistor Q1 connects the positive pole of capacitor C 1 simultaneously; The collector electrode of transistor Q1 connects the negative input voltage end of power module 2; The emitter of one termination transistor Q1 of resistance R 1, the base stage of another termination transistor Q1 and the positive pole of capacitor C 1; The positive pole of capacitor C 1 connects the other end of base stage and the resistance R 1 of transistor Q1, and negative pole connects the negative input voltage end of power module 2.
Positive input voltage end+the IN of power module 2 meets the positive 28V+ of input power; The output enable control end of power module 2 is that the PC termination is opened the collector electrode of the transistor Q1 in control circuit 1 and an end of resistance R 1 slowly; Negative input voltage end-the IN of power module 2 meets the negative 28V-of input power; Positive output voltage end+the OUT of power module 2 outputs to the positive output end OUT+ of this device; Negative output voltage end-the OUT of power module 2 outputs to the negative output terminal OUT-of this device; The voltage-regulation control end SC of power module 2 connects the output of voltage regulator circuit 3.
The voltage-regulation control end SC of the output termination power module 2 of voltage regulator circuit 3, input termination external voltage adjustable side Adj.
DC power supply of the present utility model is opened the technical work principle slowly: power module 2 is adjustable large power, electrically source module, and its output voltage can be regulated by regulation voltage the just row adjusting of voltage to earth of control end SC; The PC end is the output enable control end of power module 2, draws on inside and gives tacit consent to output 1.2V, and when PC held unsettled or high-impedance state, power module 2 enabled output, when the PC end is low level, forbids output.When the light adjusting system electrifying startup, 28V+, 28V-provide working power for power module 2, and at this moment, capacitor C 1 is equivalent to shorted to earth, and transistor Q1 base stage is low level, transistor Q1 conducting, and the PC end of power module 2 is low level, its output is under an embargo; Along with the PC terminal voltage is constantly charged to capacitor C 1 by resistance R 1, the base voltage of transistor Q1 also constantly raises, the difference that rises to transistor Q1 emitter voltage and base voltage when voltage is during less than 0.7V, transistor Q1 cut-off, at this moment, the PC of power module 2 end is equivalent to open-circuit condition with respect to ground, DC-DC power supply 2 output enables, provide voltage to the outside, so far, system begins normal operation.
Especially, in the present embodiment, power module 2 is selected V24C28M100BL3 or V24B28M200BL3, transistor Q1 selects BTA55, resistance R 1 is selected 100K resistance, and capacitor C 1 is selected 2.2uF tantalum electric capacity, has effectively guaranteed the required 200ms time of processor system electrification reset initialization.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Within if of the present utility model these are changed and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (5)
1. the slow opening apparatus of aircraft light adjusting system DC power supply, comprise power module, the output enable control end that it is characterized in that described power module with drive slowly control circuit and be connected.
2. the slow opening apparatus of aircraft light adjusting system DC power supply according to claim 1, is characterized in that, described power module is the high power adjustable source module, and described power module voltage-regulation is controlled the termination voltage regulator circuit.
3. the slow opening apparatus of aircraft light adjusting system DC power supply according to claim 2, it is characterized in that, the described control circuit of opening slowly comprises a transistor, this transistorized emitter is connected with the output enable control end of power module, this transistorized collector electrode is connected with the negative voltage input of power module, this transistorized base stage is connected with the output enable control end of power module by a resistance, this transistorized base stage also is connected with the positive pole of electric capacity, and the negative pole of this electric capacity is connected with transistorized collector electrode.
4. the slow opening apparatus of aircraft light adjusting system DC power supply according to claim 3, is characterized in that, described power module is V24C28M100BL3 or V24B28M200BL3.
5. the slow opening apparatus of aircraft light adjusting system DC power supply according to claim 3, is characterized in that, described transistor is BTA55.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206017680U CN203015184U (en) | 2012-11-15 | 2012-11-15 | DC power supply slow-on device of plane light modulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206017680U CN203015184U (en) | 2012-11-15 | 2012-11-15 | DC power supply slow-on device of plane light modulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203015184U true CN203015184U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206017680U Expired - Fee Related CN203015184U (en) | 2012-11-15 | 2012-11-15 | DC power supply slow-on device of plane light modulating system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203015184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984857A (en) * | 2012-11-15 | 2013-03-20 | 上海航空电器有限公司 | Direct current power supply slow open device for airplane dimming system |
-
2012
- 2012-11-15 CN CN2012206017680U patent/CN203015184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984857A (en) * | 2012-11-15 | 2013-03-20 | 上海航空电器有限公司 | Direct current power supply slow open device for airplane dimming system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20181115 |