CN103857105A - Control circuit - Google Patents
Control circuit Download PDFInfo
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- CN103857105A CN103857105A CN201210500701.2A CN201210500701A CN103857105A CN 103857105 A CN103857105 A CN 103857105A CN 201210500701 A CN201210500701 A CN 201210500701A CN 103857105 A CN103857105 A CN 103857105A
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Abstract
The embodiment of the invention discloses a control circuit which includes a photosensitive element, an oscillation circuit, a switching circuit and a pulse output circuit. The photosensitive element is used for outputting different electrical signals according to whether a lamp emits light normally. The oscillation circuit is used for receiving the electrical signals output by the photosensitive element, generating oscillation and outputting an inductive voltage. The switching circuit is used for controlling the pulse output circuit to output high-voltage pulses. The pulse output circuit is used for receiving the inductive voltage output by the oscillation circuit and charging and discharging repeatedly according to the switch-on and switch-off of the switching circuit so as to output high-voltage pulses continuously and light on a lamp which is lighted off. Through adoption of the control circuit, the state of the lamp can be detected and the lamp can be automatically lighted on conveniently and rapidly without manual operations so that the control circuit is low in cost.
Description
Technical field
The present invention relates to circuit field, relate in particular to a kind of control circuit.
Background technology
Along with the development of light trade, people's life more and more be unable to do without various light fixtures.In the time that light fixture surprisingly extinguishes, often need manually to restart circuit again to light light fixture.Need manual operation, wasted user's energy, increased unpredictable danger simultaneously.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of control circuit is provided.Can detect the state of light fixture, automatically light light fixture, without manual operation, convenient and swift, circuit cost is low.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of control circuit, comprising:
Photo-sensitive cell, oscillating circuit, switching circuit and impulse output circuit;
Described photo-sensitive cell is used for according to the different signal of telecommunication of the whether normal luminous output of light fixture;
Described oscillating circuit, for receiving the signal of telecommunication of described photo-sensitive cell output, produces vibration, output induced voltage;
Described switching circuit is used for controlling described impulse output circuit output high-voltage pulse;
Described impulse output circuit is for receiving the induced voltage of described oscillating circuit output, according to described switching circuit open and close repeated charge with continuous wave output high-voltage pulse, light the light fixture extinguishing.
Wherein, described control circuit also comprises alarm, when described alarm is used for lighting light fixture, and warning reminding user.
Wherein, described oscillating circuit comprises:
The first transistor, transistor seconds, the first charging capacitor and oscillation transformer;
The base stage of described the first transistor connects positive source, and collector electrode connects positive source, and emitter connects the base stage of described transistor seconds by the second primary coil of described oscillation transformer; The base stage of described transistor seconds connects power cathode by described the first electric capacity, and collector electrode connects the collector electrode of described the first transistor by the first primary coil of described oscillation transformer, and emitter connects power cathode; Described the first electric capacity one termination power cathode, the secondary coil of oscillation transformer described in another termination, the common node of the secondary coil of described oscillation transformer and described the first electric capacity connects the base stage of described transistor seconds.
Wherein, described alarm is potsherd, the first parallel connection of primary windings of described potsherd and described oscillation transformer.
Wherein, described photo-sensitive cell is infrared light-emitting diode, and the positive pole of described infrared light-emitting diode connects power cathode, and negative pole connects the base stage of described the first transistor.
Wherein, described switching circuit comprise current-limiting resistance, the second electric capacity,, switching diode and controllable silicon, described current-limiting resistance is in parallel with the secondary coil of described oscillation transformer and the series circuit of the first electric capacity composition again with after described the second capacitances in series, the positive pole of described switching diode connects the common node of described current-limiting resistance and described the second electric capacity, negative pole connects the described silicon controlled control utmost point, described controllable silicon is in parallel with described impulse output circuit, negative electrode connects the secondary coil of described oscillation transformer, and anode connects power cathode.
Wherein, described impulse output circuit comprises the 3rd electric capacity and step-up transformer; Silicon controlled negative electrode described in one termination of described the 3rd electric capacity, the primary coil of step-up transformer described in another termination; Silicon controlled anode described in another termination of the primary coil of described step-up transformer, the secondary coil of described step-up transformer is connected with light fixture.
Wherein, described high-voltage pulse circuit also comprises rectification circuit, and described rectification circuit is connected between the secondary coil and described the second electric capacity of described oscillation transformer.
Wherein, described rectification circuit comprises rectifier diode, and the positive pole of described rectifier diode connects described the second electric capacity, and negative pole connects the secondary coil of described oscillation transformer.
Wherein, described high-voltage pulse circuit also comprises divider resistance, and described divider resistance is connected between positive source and the base stage of described the first transistor.
Implement the embodiment of the present invention, there is following beneficial effect:
Whether normally luminously utilize photo-sensitive cell to detect light fixture, if light fixture extinguishes, by the cooperation of oscillating circuit and impulse output circuit, constantly send high-voltage pulse and attempt lighting light fixture; Can realize thus when light fixture extinguishes and automatically light light fixture, without manual operation, convenient and swift, circuit cost is low; Alarm is set in circuit, carries out warning reminding user when attempting lighting light fixture failure alarm device, facilitate user to understand in time light fixture operating state.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that the first embodiment of control circuit of the present invention forms schematic diagram;
Fig. 2 is that the second embodiment of control circuit of the present invention forms schematic diagram;
Fig. 3 is the 3rd embodiment circuit diagram of control circuit of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, for the first embodiment of control circuit of the present invention forms schematic diagram; In the present embodiment, described control circuit comprises: photo-sensitive cell 10, oscillating circuit 20, switching circuit 30 and impulse output circuit 40.
Described photo-sensitive cell 10 is for according to the different signal of telecommunication of the whether normal luminous output of light fixture;
The signal of telecommunication that described oscillating circuit 20 is exported for receiving described photo-sensitive cell 10, produces vibration, output induced voltage;
Described switching circuit 30 is exported high-voltage pulse for controlling described impulse output circuit 40;
Described impulse output circuit 40 is for receiving the induced voltage of described oscillating circuit output, according to described switching circuit open and close repeated charge with continuous wave output high-voltage pulse, light the light fixture extinguishing.
Whether normally luminously utilize photo-sensitive cell to detect light fixture, if light fixture extinguishes, by the cooperation of oscillating circuit and impulse output circuit, constantly send high-voltage pulse and attempt lighting light fixture; Can realize thus when light fixture extinguishes and automatically light light fixture, without manual operation, convenient and swift, circuit cost is low.
Please refer to Fig. 2, for the second embodiment of control circuit of the present invention forms schematic diagram; In the present embodiment, described control circuit comprises: photo-sensitive cell 10, oscillating circuit 20, switching circuit 30, impulse output circuit 40 and alarm 50.
Described alarm 50 for cannot light light fixture time, warning reminding user.
By alarm is set in circuit, carry out warning reminding user when attempting lighting light fixture failure alarm device, facilitate user to understand in time light fixture operating state.
Please refer to Fig. 3, is the 3rd embodiment circuit diagram of control circuit of the present invention.In the present embodiment, described oscillating circuit comprises:
The first transistor VT1, transistor seconds VT2, the first charging capacitor C1 and oscillation transformer T1;
The base stage of described the first transistor VT1 connects positive source, and collector electrode connects positive source, and emitter connects the base stage of described transistor seconds VT2 by the second primary coil L2 of described oscillation transformer T1; The base stage of described transistor seconds VT2 connects power cathode by described the first capacitor C 1, and collector electrode connects the collector electrode of described the first transistor VT1 by the first primary coil L1 of described oscillation transformer T1, and emitter connects power cathode; Described the first capacitor C 1 one termination power cathodes, the secondary coil L3 of oscillation transformer T1 described in another termination, the secondary coil L3 of described oscillation transformer T1 and the common node of described the first capacitor C 1 connect the base stage of described transistor seconds VT2.
Described alarm is potsherd HTD, and described potsherd HTD is in parallel with the first primary coil L1 of described oscillation transformer T1.
Described photo-sensitive cell is infrared light-emitting diode VD1, and the positive pole of described infrared light-emitting diode VD1 connects power cathode, and negative pole connects the base stage of described the first transistor VT1.
Described switching circuit comprises current-limiting resistance R2, the second capacitor C 2, switching diode VD3 and controllable silicon MCR, the series circuit that described current-limiting resistance R2 forms with secondary coil L3 and the first capacitor C 1 of described oscillation transformer T1 after connecting with described the second capacitor C 2 is again in parallel, the positive pole of described switching diode VD3 connects the common node of described current-limiting resistance R2 and described the second capacitor C 2, negative pole connects the control utmost point of described controllable silicon MCR, described controllable silicon MCR is in parallel with described impulse output circuit, negative electrode meets the secondary coil L3 of described oscillation transformer T1, anode connects power cathode.
Described impulse output circuit comprises the 3rd capacitor C 3 and step-up transformer T2; The negative electrode of controllable silicon MCR described in one termination of described the 3rd capacitor C 3, the primary coil L4 of step-up transformer T2 described in another termination; The anode of controllable silicon MCR described in another termination of primary coil L4 of described step-up transformer T2, the secondary coil of described step-up transformer T2 is connected with light fixture LAMP.
Described high-voltage pulse circuit also comprises rectification circuit, and described rectification circuit is connected between the secondary coil L3 and described the second capacitor C 2 of described oscillation transformer T1.
Described rectification circuit comprises rectifier diode VD2, and the positive pole of described rectifier diode VD2 connects described the second capacitor C 2, and negative pole meets the secondary coil L3 of described oscillation transformer T1.
Described high-voltage pulse circuit also comprises divider resistance R1, and described divider resistance R1 is connected between positive source and the base stage of described the first transistor VT1.
It should be noted that, although Fig. 3 shows concrete photo-sensitive cell, oscillating circuit, switching circuit and impulse output circuit, the present invention is not limited to this.Those skilled in the art are to be understood that, the present invention can also comprise that the detection light of other any appropriate judges light fixture operating state and sent continuous impulse and lighted the circuit structure of light fixture by vibration, but, control circuit is as shown in Figure 2 not only simple in structure, and precise control, whole circuit to realize cost low.
Describe the control principle of control circuit described in the present embodiment in detail below in conjunction with Fig. 3: switch S A closure, power on circuitry work, now light fixture is not yet lighted, infrared photodiode VD1 is not subject to light fixture irradiation and presents high-impedance state, the first transistor VT1 conducting, when the first capacitor C 1 is charged, the second primary coil L2 through oscillation transformer T1 provides bias voltage to the VT2 of transistor seconds, transistor seconds VT2 conducting, in the first primary coil L1, there is electric current to flow through, in the secondary coil L3 of oscillation transformer T1, the induced voltage of upper hectovolt will be produced, polarity be upper negative under just.In the secondary coil L3 of oscillation transformer T1, induced voltage is powered through rectifier diode VD2 rectification rear end when the first capacitor C 1 is charged.Along with the carrying out of charging, voltage in the first capacitor C 1 raises gradually, the emitter voltage of the first transistor VT1 also increases, in the time that voltage is elevated to a certain threshold value, the first transistor VT1 turns to cut-off by conducting, the first capacitor C 1 is discharged rapidly through the loop of transistor seconds VT2, and transistor seconds VT2 ends subsequently.The first transistor VT1 conducting again, transistor seconds VT2 conducting subsequently, circuit repeats said process, produces thus vibration.In the secondary coil of oscillation transformer T1, L3 produces induced voltage, by the primary coil L4 through step-up transformer T2 after rectifier diode VD2 rectification, the 3rd capacitor C 3 is charged.The second capacitor C 2, current-limiting resistance R2, switch triode VD3 composition controllable silicon MCR circuits for triggering, the second capacitor C 2, the trigger pulse triggers controllable silicon MCR conducting that current-limiting resistance R2 produces, the 3rd resistance C3 discharges rapidly through primary coil L4 and the controllable silicon MCR of step-up transformer T2, in the secondary coil L5 of step-up transformer T2, induce the high pressure of volts up to ten thousand, light light fixture LAMP, when controllable silicon MCR conducting, be equivalent to the secondary coil L3 of oscillation transformer T1 by short circuit, controllable silicon MCR turn-offs, controllable silicon MCR is again by the second capacitor C 2 subsequently, the trigger pulse triggers controllable silicon MCR conducting that current-limiting resistance R2 produces, therefore circuit will produce continuous high-voltage pulse to attempt lighting light fixture.
After light fixture is lighted, the infrared ray sending makes the resistance decreasing of infrared light-emitting diode VD1, the first transistor VT1 cut-off, and transistor seconds VT2 loses bias voltage and ends, and whole circuit quits work.Extinguish once light fixture meets accident, the first transistor VD1 recovers again high-impedance state, and whole circuit is started working, and sends continuous high-voltage pulse, lights light fixture.Meanwhile, the two ends of the first primary coil L1 of oscillation transformer T1 obtain induced voltage and make potsherd HTD send prompt tone.If light fixture still can not be lighted, chimes of doom is constant, with call user's attention.
By the description of above-described embodiment, the present invention has the following advantages:
Whether normally luminously utilize photo-sensitive cell to detect light fixture, if light fixture extinguishes, by the cooperation of oscillating circuit and impulse output circuit, constantly send high-voltage pulse and attempt lighting light fixture; Can realize thus when light fixture extinguishes and automatically light light fixture, without manual operation, convenient and swift, circuit cost is low; Alarm is set in circuit, carries out warning reminding user when attempting lighting light fixture failure alarm device, facilitate user to understand in time light fixture operating state.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (10)
1. a control circuit, is characterized in that, comprising: photo-sensitive cell, oscillating circuit, switching circuit and impulse output circuit;
Described photo-sensitive cell is used for according to the different signal of telecommunication of the whether normal luminous output of light fixture;
Described oscillating circuit, for receiving the signal of telecommunication of described photo-sensitive cell output, produces vibration, output induced voltage;
Described switching circuit is used for controlling described impulse output circuit output high-voltage pulse;
Described impulse output circuit is for receiving the induced voltage of described oscillating circuit output, according to described switching circuit open and close repeated charge with continuous wave output high-voltage pulse, light the light fixture extinguishing.
2. control circuit as claimed in claim 1, is characterized in that, described control circuit also comprises alarm, when described alarm is used for lighting light fixture, and warning reminding user.
3. control circuit as claimed in claim 2, is characterized in that, described oscillating circuit comprises:
The first transistor, transistor seconds, the first charging capacitor and oscillation transformer;
The base stage of described the first transistor connects positive source, and collector electrode connects positive source, and emitter connects the base stage of described transistor seconds by the second primary coil of described oscillation transformer; The base stage of described transistor seconds connects power cathode by described the first electric capacity, and collector electrode connects the collector electrode of described the first transistor by the first primary coil of described oscillation transformer, and emitter connects power cathode; Described the first electric capacity one termination power cathode, the secondary coil of oscillation transformer described in another termination, the common node of the secondary coil of described oscillation transformer and described the first electric capacity connects the base stage of described transistor seconds.
4. control circuit as claimed in claim 3, is characterized in that, described alarm is potsherd, the first parallel connection of primary windings of described potsherd and described oscillation transformer.
5. control circuit as claimed in claim 4, is characterized in that, described photo-sensitive cell is infrared light-emitting diode, and the positive pole of described infrared light-emitting diode connects power cathode, and negative pole connects the base stage of described the first transistor.
6. control circuit as claimed in claim 5, it is characterized in that, described switching circuit comprises current-limiting resistance, the second electric capacity, switching diode and controllable silicon, described current-limiting resistance is in parallel with the secondary coil of described oscillation transformer and the series circuit of the first electric capacity composition again with after described the second capacitances in series, the positive pole of described switching diode connects the common node of described current-limiting resistance and described the second electric capacity, negative pole connects the described silicon controlled control utmost point, described controllable silicon is in parallel with described impulse output circuit, negative electrode connects the secondary coil of described oscillation transformer, anode connects power cathode.
7. the control circuit as described in right 6 requirements, is characterized in that, described impulse output circuit comprises the 3rd electric capacity and step-up transformer; Silicon controlled negative electrode described in one termination of described the 3rd electric capacity, the primary coil of step-up transformer described in another termination; Silicon controlled anode described in another termination of the primary coil of described step-up transformer, the secondary coil of described step-up transformer is connected with light fixture.
8. control circuit as claimed in claim 7, is characterized in that, described high-voltage pulse circuit also comprises rectification circuit, and described rectification circuit is connected between the secondary coil and described the second electric capacity of described oscillation transformer.
9. control circuit as claimed in claim 8, is characterized in that, described rectification circuit comprises rectifier diode, and the positive pole of described rectifier diode connects described the second electric capacity, and negative pole connects the secondary coil of described oscillation transformer.
10. control circuit as claimed in claim 9, is characterized in that, described high-voltage pulse circuit also comprises divider resistance, and described divider resistance is connected between positive source and the base stage of described the first transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210500701.2A CN103857105B (en) | 2012-11-30 | 2012-11-30 | A kind of control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210500701.2A CN103857105B (en) | 2012-11-30 | 2012-11-30 | A kind of control circuit |
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| Publication Number | Publication Date |
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| CN103857105A true CN103857105A (en) | 2014-06-11 |
| CN103857105B CN103857105B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210500701.2A Active CN103857105B (en) | 2012-11-30 | 2012-11-30 | A kind of control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797749A (en) * | 2019-11-07 | 2020-02-14 | 深圳市神飞电子科技有限公司 | High-voltage excitation circuit of laser tube |
| CN111352010A (en) * | 2020-04-23 | 2020-06-30 | 刘文辉 | Switch board insulation fault early warning device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682084A (en) * | 1985-08-28 | 1987-07-21 | Innovative Controls, Incorporated | High intensity discharge lamp self-adjusting ballast system sensitive to the radiant energy or heat of the lamp |
| US20090200959A1 (en) * | 2008-02-12 | 2009-08-13 | Himax Analogic, Inc. | Light-Emitting Diode Driving Circuit |
| CN202077502U (en) * | 2010-11-19 | 2011-12-21 | 宁波龙源照明电器有限公司 | Solar LED (Light-Emitting Diode) light trap |
| CN202353899U (en) * | 2011-12-21 | 2012-07-25 | 陈清尧 | Energy-saving environmentally-friendly street lamp |
-
2012
- 2012-11-30 CN CN201210500701.2A patent/CN103857105B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682084A (en) * | 1985-08-28 | 1987-07-21 | Innovative Controls, Incorporated | High intensity discharge lamp self-adjusting ballast system sensitive to the radiant energy or heat of the lamp |
| US20090200959A1 (en) * | 2008-02-12 | 2009-08-13 | Himax Analogic, Inc. | Light-Emitting Diode Driving Circuit |
| CN202077502U (en) * | 2010-11-19 | 2011-12-21 | 宁波龙源照明电器有限公司 | Solar LED (Light-Emitting Diode) light trap |
| CN202353899U (en) * | 2011-12-21 | 2012-07-25 | 陈清尧 | Energy-saving environmentally-friendly street lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797749A (en) * | 2019-11-07 | 2020-02-14 | 深圳市神飞电子科技有限公司 | High-voltage excitation circuit of laser tube |
| CN111352010A (en) * | 2020-04-23 | 2020-06-30 | 刘文辉 | Switch board insulation fault early warning device |
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| Publication number | Publication date |
|---|---|
| CN103857105B (en) | 2016-09-14 |
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