CN101707840B - Alarm light circuit applicable for airfield runway - Google Patents
Alarm light circuit applicable for airfield runway Download PDFInfo
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- CN101707840B CN101707840B CN200910107324A CN200910107324A CN101707840B CN 101707840 B CN101707840 B CN 101707840B CN 200910107324 A CN200910107324 A CN 200910107324A CN 200910107324 A CN200910107324 A CN 200910107324A CN 101707840 B CN101707840 B CN 101707840B
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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
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Abstract
The invention relates to an alarm light circuit applicable for an airfield runway, which comprises a rectifying filter circuit, a control circuit and a load circuit, wherein the load circuit comprises an MOS pipe used for controlling the on and off of an alarm light. The alarm light circuit also comprises a direct current power-up circuit. In the direct current power-up circuit, after two resistors are connected in serial, one end is connected with the output interface of the control circuit, and the other end is grounded; the intersection of the two serially connected resistors is connected with a base electrode of a triode, an emitting electrode of the triode is grounded, and an collecting electrode thereof is connected with one end of a relay coil; the other end of the relay coil is connected with the anode of the power supply output end of the rectifying filter circuit; a normally closed switch of the relay is connected in parallel at two ends of the MOS pipe; and the direct current power-up circuit is used for providing voltage for the control circuit when the circuit is open. When the alarm light circuit provided by the invention is used, and the direct current power-up circuit provides working voltage for the control circuit when the circuit is open, so alternate twinkling of the alarm light is effectively controlled.
Description
Technical field
The present invention relates to lighting engineering, be specifically related to a kind of alarm light circuit that alternately glimmers luminous that can be used on the airfield runway.
Background technology
Serial alarm light all is installed on the airfield runway, and alarm light is through the control of aid-to-navigation light system, and the aid-to-navigation light control system adopts constant current source that dimming light sources is controlled, and light source is selected the special-purpose halogen tungsten lamp in airport for use; And the alternately flicker of alarm light functional requirement two lamps; Want through the Single-chip Controlling flashing function; The DC voltage that steady operation can be provided to single-chip microcomputer will be arranged, and galvanic current is pressed normally by the alternating current that offers the alarm light load through obtaining behind the rectifying and voltage-stabilizing after the isolating transformer step-down again, and in moment that the alarm light circuit is opened; Because metal-oxide-semiconductor Q2, Q3 by control circuit control lamp on/off are in cut-off state; One, the two not conductings of alarm light load branch, the input end of isolating transformer T1 also just can not conductings, press thereby control circuit can't obtain galvanic current; Can not start working, can't realize the alternately flicker of Single-chip Controlling alarm light.
Summary of the invention
The technical matters that the present invention will solve is, to the defective that prior art can't power on for alarm light circuit control circuit, provide a kind of alarm light open time, the airfield runway alarm light circuit of WV is provided for control circuit.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of alarm light circuit that can be used on the airfield runway; Comprise current rectifying and wave filtering circuit, control circuit and load circuit; Said load circuit comprises load branch one and load branch two; Said load branch one comprises first metal-oxide-semiconductor that is used for according to output signal controlling first lamp on/off of control circuit; Said load branch two comprises second metal-oxide-semiconductor that is used for according to output signal controlling second lamp on/off of control circuit, it is characterized in that, said alarm light circuit also comprises the direct current circuit that powers on; The said direct current circuit that powers on comprises first resistance, second resistance, first triode, relay coil and relay normally closed switch; First output interface of a termination control circuit after first resistance is connected with second resistance, other end ground connection, and said first output interface is exported high level when control circuit is started working; First resistance of being connected, the joint of second resistance connect the base stage of first triode; The grounded emitter of said first triode, the collector of said first triode connect an end of said relay coil, and the other end of said relay coil is connected with the positive pole of the power output end of said current rectifying and wave filtering circuit; The relay normally closed switch is connected in parallel on the drain electrode and the source electrode two ends of said first metal-oxide-semiconductor, and it is that control circuit provides voltage that said direct current powers on that circuit is used for when circuit is opened.
In the alarm light circuit that can be used on the airfield runway of the present invention; Said current rectifying and wave filtering circuit comprises rectifier bridge heap, first filter capacitor, second filter capacitor and first voltage stabilizing diode; Between said first filter capacitor and the positive and negative electrode that is connected rectifier bridge heap output terminal after second filter capacitor is parallelly connected; The both positive and negative polarity of said first voltage stabilizing diode is connected with the negative, positive utmost point of rectifier bridge heap output terminal respectively, and said current rectifying and wave filtering circuit is used for converting the High Level AC Voltage of input into low-voltage DC.
In the alarm light circuit that can be used on the airfield runway of the present invention; Said current rectifying and wave filtering circuit also comprises holding circuit; Said holding circuit comprises second voltage stabilizing diode, controllable silicon, the 3rd resistance and the 3rd electric capacity; The positive pole of said second voltage stabilizing diode inserts the negative pole that rectifier bridge is piled power output end through the 3rd resistance, and its negative pole inserts the positive pole of rectifier bridge heap power output end, and the controlled utmost point of silicon controlled is connected with the positive pole of second zener diode; Its anode, negative electrode insert the positive and negative electrode of rectifier bridge heap power output end respectively, and said holding circuit is used for overvoltage protection.
In the alarm light circuit that can be used on the airfield runway of the present invention; Said control circuit comprise control chip, respectively with load branch one, two corresponding switch branch roads one, two; Wherein, said switching branches one comprises: the 4th resistance, the 5th resistance, second triode, the 6th resistance, first optocoupler and the 7th resistance, and said switching branches two comprises: the 8th resistance, the 9th resistance, the tenth resistance, the 11 resistance, second optocoupler, the 3rd triode; Wherein, After the 4th resistance, the series connection of the 5th resistance, an end ground connection, second output interface of a termination control chip; The 4th resistance of being connected, the joint of the 5th resistance connect the base stage of second triode; The grounded emitter of said second triode, its collector connects the input cathode of first optocoupler, and the input anode of said first optocoupler is anodal through the power output end that the 6th resistance connects current rectifying and wave filtering circuit; The positive pole of its output terminal connects an end of alternating current through the 7th resistance, and the negative pole of its output terminal is connected with load branch one; After the 8th resistance, the series connection of the 9th resistance; The 3rd output interface of one termination control chip; One end ground connection, the 8th resistance of being connected, the joint of the 9th resistance connect the base stage of the 3rd triode, the grounded emitter of said the 3rd triode; Its collector connects the input cathode of second optocoupler; The input anode of said second optocoupler is anodal through the power output end that the tenth resistance connects current rectifying and wave filtering circuit, and the positive pole of its output terminal connects an end of alternating current through the 11 resistance, and the negative pole of its output terminal is connected with load branch two; The alternately flicker that said control circuit comes control load circuit two load branch through control chip second output interface, the 3rd output interface output high-low level alternately.
Embodiment of the present invention provides can be used for the alarm light circuit on the airfield runway, and the direct current circuit that powers on is that control circuit provides supply voltage when opening through the relay normally closed switch, and control circuit is started working, and realizes the stable flicker that replaces of load circuit.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the logic diagram that the present invention can be used for the alarm light circuit embodiments on the airfield runway;
Fig. 2 is the circuit theory diagrams that can be used for the alarm light circuit embodiments on the airfield runway provided by the invention.
Embodiment
As shown in Figure 1; Provided by the invention can be used on the airfield runway the alarm light circuit one embodiment comprises current rectifying and wave filtering circuit 100, control circuit 200, load circuit 400; Wherein, also comprise the direct current that is connected between current rectifying and wave filtering circuit 100 and the load circuit 400 circuit 300 that powers on.Wherein, current rectifying and wave filtering circuit 100 is used for converting the input High Level AC Voltage into low-voltage DC, for control circuit provides WV; Control circuit 200 is used to realize the alternately flicker of two branches of control load circuit 400; It is that control circuit 200 provides supply voltage that direct current powers on that circuit 300 is used for opening moment at circuit.
1, rectification circuit
As shown in Figure 2; Current rectifying and wave filtering circuit 100 comprises rectifier bridge heap D2, is connected in parallel on filter capacitor C3 and the C8 and the voltage stabilizing diode D3 of rectifier bridge heap D2 power output end; The positive and negative electrode of this voltage stabilizing diode D3 is connected with the negative, positive utmost point of rectifier bridge heap D2 power output end respectively; Like this, voltage stabilizing diode D3 is in the forward cut-off state, and it mainly is for the direct current circuit that powers on the voltage of voltage regulation of a 12V to be provided.
In the course of normal operation, rectifier bridge heap D2 output voltage receives other interference and voltage fluctuation occurs through regular meeting.For avoiding because of overtension burns components and parts, said current rectifying and wave filtering circuit 100 of the present invention also comprises holding circuit, and this holding circuit is made up of voltage stabilizing diode ZD1, controllable silicon Q8, resistance R 4 and capacitor C 1.The positive pole of voltage stabilizing diode ZD1 inserts the negative pole of rectifier bridge heap D2 power output end through resistance R 4; And its negative pole inserts the positive pole of rectifier bridge heap D2 power output end; The anode of controllable silicon Q3, negative electrode insert the positive and negative electrode of rectifier bridge heap D2 power output end respectively, and its control utmost point is connected with the positive pole of voltage stabilizing diode ZD1.
In addition; For 5V is provided stable voltage to single-chip microcomputer, also be provided with mu balanced circuit at said current rectifying and wave filtering circuit 100, this mu balanced circuit is made up of stabilivolt U1 and filter capacitor C4; Wherein, It is anodal that the input end of stabilivolt U1 connects power output end, and its output terminal connects control circuit 200, and its earth terminal connects the power output end negative pole; Filter capacitor is connected between the output terminal and power output end negative pole of stabilivolt U1.
2, control circuit
As shown in Figure 2; Control circuit 200 comprises control chip U and corresponding switching branches with two load branch one, switching branches two; The voltage input pin 8 (Vcc) of control chip U is connected with said stabilivolt output terminal; Its pin 5 (PB0) is connected back ground connection through filter capacitor C5 with the power cathode of said current rectifying and wave filtering circuit 100 outputs; Its pin two (PB3) connects the direct current circuit 300 that powers on, and realizes that through programming pin 7 (PB2) and pin 6 (PB1) alternately export high level and control alternately glimmering of two load branch.
After load branch one corresponding switching branches one: two resistance R 10, R12 connects; One end ground connection; The pin 7 (PB2) of one end and control chip U, the joint of two resistance R 10, R12 series connection links to each other the grounded emitter of said triode Q5 with the base stage of triode Q5; Its collector connects the input cathode of optocoupler U2; The input anode of said optocoupler U2 is anodal through the power output end that a divider resistance R13 connects current rectifying and wave filtering circuit 100, and the positive pole of its output terminal connects alternating current after through resistance R 3, and the negative pole of its output terminal is connected with load branch one.
After load branch two corresponding switch branch roads two: two resistance R 11, R21 connect; One end ground connection; The pin 6 (PB1) of one end and control chip U, the joint of two resistance R 11, R21 series connection links to each other the grounded emitter of said triode Q4 with the base stage of triode Q4; Its collector connects the input cathode of optocoupler U3; The input anode of said optocoupler U3 is anodal through the power output end that a divider resistance R14 connects current rectifying and wave filtering circuit 100, and the positive pole of its output terminal connects High Level AC Voltage after through resistance R 5, and the negative pole of its output terminal is connected with load branch two.
3, load circuit
Load branch one: metal-oxide-semiconductor Q2 source electrode connects an end of transformer T1 input end; Its drain electrode connects the other end of transformer T1 input end through lamp L1; Constant-current dimmer and isolating transformer that said transformer T1 is the airfield aid system-specific; The switching branches one of metal-oxide-semiconductor Q2 grid connection control circuit, relay switch K1B is attempted by between the source electrode and drain electrode of metal-oxide-semiconductor Q2.When pin 7 (PB2) the output high level of the control chip U of control circuit, during pin 6 (PB1) output low level, the base voltage of triode Q5 is greater than emitter voltage simultaneously; Triode Q5 conducting, triode Q4 ends, optocoupler U2 conducting; Optocoupler U3 ends; Thereby realize converting low-voltage control signal into high voltage control signal, metal-oxide-semiconductor Q2 conducting (this moment, the normally closed interlock of relay normally closed switch K1B broke off), the lamp L1 of load branch one lights; Metal-oxide-semiconductor Q3 ends, and the lamp L2 of load branch two goes out.
Load branch two: metal-oxide-semiconductor Q3 source electrode connects an end of transformer T1 input end, and it drains and connects the other end of transformer T1 input end, the switching branches two of metal-oxide-semiconductor Q3 grid connection control circuit through lamp L2.In like manner, the pin 6 (PB1) of the control chip U of control circuit output high level, during pin 7 (PB2) output low level, the lamp L2 of load branch two lights simultaneously, and the lamp L1 of load branch one goes out.
4, the direct current circuit that powers on
As shown in Figure 2; The direct current circuit 300 that powers on comprises diode D1, triode Q1, resistance R 1, resistance R 2, relay K 1A and relay normally closed switch K1B; The pin two (PB3) of a termination control chip U after resistance R 1 is connected with resistance R 2, other end ground connection, the joint of said two resistance in series R1, R2 connects the base stage of triode Q1; The grounded emitter of said triode Q1; Collector connects the end of said relay coil K1A, and another termination of said relay coil K1A is connected with the positive pole of the power output end of said current rectifying and wave filtering circuit 100, and relay normally closed switch K1B is connected in parallel on drain electrode and the source electrode two ends of said metal-oxide-semiconductor Q2.The alarm light circuit that the present invention can be used on the airfield runway is realized following to the control procedure of lamp L1, L2:
Before lamp L1, L2 open, though relay switch K1B is closed, not energising of lamp L1, L2, two lamps all do not work.
In the moment that lamp L1, L2 open; The contact closure of relay normally closed switch K1B makes lamp L1 before starting illumination, be in conducting; The input end conducting of isolating transformer T1, thereby current rectifying and wave filtering circuit 100, control circuit 200 conductings, control circuit 200 must be established the beginning operate as normal by cable.
When control circuit 200 is started working; Pin 2 (PB3) the output high level of the control chip U of control circuit 200; Ratio through adjustment R1, R2; Make the cut-in voltage of the base voltage of triode Q1 greater than triode, triode Q1 conducting, relay coil K1A breaks off relay normally closed switch K1B after sensing voltage.
After relay normally closed switch K1B breaks off, thereby control chip U alternately exports the alternate conduction realization illumination flicker that high level is controlled the load branch of lamp L1, L2 through pin 6,7.Concrete as, when pin 6 (PB1) was high level, there was pressure reduction in the R12 two ends; Through regulating the resistance ratio of R12 and R10, feasiblely be added in voltage on the R12 greater than the cut-in voltage of Q5, Q5 conducting; Trigger the conducting of optocoupler U2 input end; Be that the cathode output end of supply voltage behind rectifying and wave-filtering flows to the earth through input end, the triode Q5 of resistance R 13, optocoupler U2, optocoupler U2 converts the low-voltage control signal of input to high voltage control signal output, and High Level AC Voltage is through the grid of the output termination metal-oxide-semiconductor Q2 of resistance R 3, optocoupler U2; Metal-oxide-semiconductor Q2 conducting, lamp L1 lights; When the pin 7 (PB2) of control chip U be high level the time, when promptly lamp L1 lights, the pin 6 (PB1) of control chip U be low level the time, oppositely by, load branch two not conductings, promptly lamp L2 is the state of not working to triode Q4.
Otherwise, in like manner, when the pin 7 (PB2) of control chip U is low level, when pin 6 (PB1) is high level, load branch one not conducting, lamp L1 does not work, load branch two conductings, lamp L2 lights.
When the circuit operate as normal; Because pin 7 (PB2) and the pin 6 (PB1) of control chip U are alternately exported high level; Therefore; Total energy guarantees that it is conducting that all there is a load branch in any moment, and promptly the input end of isolating transformer is conducting, and AC-input voltage provides WV for control circuit 200 behind current rectifying and wave filtering circuit 100.
The situation that causes two alarm lights all not work for the delay of control signal time of avoiding two alarm light L1, L2 in certain moment; Make his reminding effect of field guard lamp realization useless, can make pin 7 (PB2) and the pin 6 (PB1) of control chip U alternately export high level and overlap.
Claims (4)
1. alarm light circuit that can be used on the airfield runway; Comprise current rectifying and wave filtering circuit (100), control circuit (200) and load circuit (400); Said load circuit (400) comprises load branch one and load branch two; Said load branch one comprises first metal-oxide-semiconductor (Q2) that is used for according to output signal controlling first lamp (L1) light on and off of control circuit (200); Said load branch two comprises second metal-oxide-semiconductor (Q3) that is used for according to output signal controlling second lamp (L2) light on and off of control circuit (200); It is characterized in that; Said alarm light circuit also comprises the direct current circuit (300) that powers on, and the said direct current circuit (300) that powers on comprises first resistance (R1), second resistance (R2), first triode (Q1), relay coil (K1A) and relay normally closed switch (K1B), connect with second resistance (R2) first output interface of back one termination control circuit (200) of first resistance (R1); Other end ground connection; And at control circuit (200) said first output interface output high level when starting working, first resistance (R1) of being connected, the joint of second resistance (R2) connect the base stage of first triode (Q1), the grounded emitter of said first triode (Q1); The collector of said first triode (Q1) connects an end of said relay coil (K1A); The other end of said relay coil (K1A) is connected with the positive pole of the power output end of said current rectifying and wave filtering circuit (100), and relay normally closed switch (K1B) is connected in parallel on the drain electrode and the source electrode two ends of said first metal-oxide-semiconductor (Q2), and it is that control circuit provides voltage that said direct current powers on that circuit (300) is used for when circuit is opened.
2. the alarm light circuit that can be used on the airfield runway according to claim 1; It is characterized in that; Said current rectifying and wave filtering circuit (100) comprises rectifier bridge heap (D2), first filter capacitor (C3), second filter capacitor (C8) and first voltage stabilizing diode (D3); Between said first filter capacitor (C3) and the positive and negative electrode that is connected rectifier bridge heap (D2) output terminal after second filter capacitor (C8) is parallelly connected; The both positive and negative polarity of said first voltage stabilizing diode (D3) is connected with the negative, positive utmost point of rectifier bridge heap (D2) output terminal respectively, and said current rectifying and wave filtering circuit is used for converting the High Level AC Voltage of input into low-voltage DC.
3. the alarm light circuit that can be used on the airfield runway according to claim 2; It is characterized in that; Said current rectifying and wave filtering circuit (100) also comprises holding circuit; Said holding circuit comprises second voltage stabilizing diode (ZD1), controllable silicon (Q8), the 3rd resistance (R4) and the 3rd electric capacity (C1); The positive pole of said second voltage stabilizing diode (ZD1) inserts the negative pole that rectifier bridge is piled (D2) power output end through the 3rd resistance (R4), and its negative pole inserts the positive pole of rectifier bridge heap (D2) power output end, and the controlled utmost point of controllable silicon (Q3) is connected with the positive pole of second zener diode (ZD1); Its anode, negative electrode insert the positive and negative electrode of rectifier bridge heap (D2) power output end respectively, and said holding circuit is used for overvoltage protection.
4. the alarm light circuit that can be used on the airfield runway according to claim 1; It is characterized in that; Said control circuit (200) comprise control chip (U), respectively with load branch one, two corresponding switch branch roads one, two; Wherein, said switching branches one comprises: the 4th resistance (R10), the 5th resistance (R12), second triode (Q5), the 6th resistance (R13), first optocoupler (U2) and the 7th resistance (R3), and said switching branches two comprises: the 8th resistance (R11), the 9th resistance (R21), the tenth resistance (R14), the 11 resistance (R5), second optocoupler (U3), the 3rd triode (Q4); Wherein, After the 4th resistance (R10), the 5th resistance (R12) series connection, an end ground connection, second output interface of a termination control chip (U); The 4th resistance (R10) of being connected, the joint of the 5th resistance (R12) connect the base stage of second triode (Q5); The grounded emitter of said second triode (Q5), its collector connects the input cathode of first optocoupler (U2), and the input anode of said first optocoupler (U2) is anodal through the power output end that the 6th resistance (R13) connects current rectifying and wave filtering circuit (100); The positive pole of its output terminal connects an end of alternating current through the 7th resistance (R3), and the negative pole of its output terminal is connected with load branch one; After the 8th resistance (R11), the 9th resistance (R21) series connection; The 3rd output interface of one termination control chip (U); One end ground connection, the 8th resistance (R11) of being connected, the joint of the 9th resistance (R21) connect the base stage of the 3rd triode (Q4), the grounded emitter of said the 3rd triode (Q4); Its collector connects the input cathode of second optocoupler (U3); The input anode of said second optocoupler (U3) is anodal through the power output end that the tenth resistance (R14) connects current rectifying and wave filtering circuit (100), and the positive pole of its output terminal connects an end of alternating current through the 11 resistance (R5), and the negative pole of its output terminal is connected with load branch two; The alternately flicker that said control circuit (200) comes control load circuit (400) two load branch through control chip (U) second output interface, the 3rd output interface output high-low level alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107324A CN101707840B (en) | 2009-05-13 | 2009-05-13 | Alarm light circuit applicable for airfield runway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107324A CN101707840B (en) | 2009-05-13 | 2009-05-13 | Alarm light circuit applicable for airfield runway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101707840A CN101707840A (en) | 2010-05-12 |
| CN101707840B true CN101707840B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910107324A Expired - Fee Related CN101707840B (en) | 2009-05-13 | 2009-05-13 | Alarm light circuit applicable for airfield runway |
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| Country | Link |
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| CN (1) | CN101707840B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104038210B (en) * | 2014-06-27 | 2017-08-25 | 青岛歌尔声学科技有限公司 | It is a kind of to insert type interface circuit and debugging board connecting equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205400U (en) * | 1985-12-21 | 1987-06-17 | 中国人民解放军空军第二研究所 | Self-compensative and non-phase angle constant-power controller |
| CN2099416U (en) * | 1991-08-21 | 1992-03-18 | 张群宜 | Dual lines sound-light-time three controlling switch with power saving function |
| CN101324312A (en) * | 2007-06-15 | 2008-12-17 | 孟忠 | Active self-luminescence LED lamp |
-
2009
- 2009-05-13 CN CN200910107324A patent/CN101707840B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205400U (en) * | 1985-12-21 | 1987-06-17 | 中国人民解放军空军第二研究所 | Self-compensative and non-phase angle constant-power controller |
| CN2099416U (en) * | 1991-08-21 | 1992-03-18 | 张群宜 | Dual lines sound-light-time three controlling switch with power saving function |
| CN101324312A (en) * | 2007-06-15 | 2008-12-17 | 孟忠 | Active self-luminescence LED lamp |
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| CN101707840A (en) | 2010-05-12 |
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Granted publication date: 20120905 Termination date: 20190513 |