CN103196095A - Capacitive high-brightness LED stroboscopic light filling lamp system - Google Patents
Capacitive high-brightness LED stroboscopic light filling lamp system Download PDFInfo
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- CN103196095A CN103196095A CN2013101390664A CN201310139066A CN103196095A CN 103196095 A CN103196095 A CN 103196095A CN 2013101390664 A CN2013101390664 A CN 2013101390664A CN 201310139066 A CN201310139066 A CN 201310139066A CN 103196095 A CN103196095 A CN 103196095A
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Abstract
A capacitive high-brightness LED stroboscopic light filling lamp system comprises a transformer, a capacitor, a single-chip microcomputer, a switch and LEDs. The transformer taking mains supply as input outputs a voltage V to two ends of the capacitor and two ends of a circuit formed by the LEDs and the switch in serial connection, wherein 2V<rating> <V<V<critical>, and V<rating> is rated operational voltage of the LEDs, and the V<critical> is critical breakdown voltage of the LEDs, the capacitor is parallelly connected with the circuit composed of the LEDs and the switch Q1 and is used for storing charges. The single-chip microcomputer controls on and off of the switch. When the switch is off, the capacitor discharges the LEDs instantly, so that instant lighting luminance of the LEDs is higher than rated lighting luminance thereof. On the premise of not increasing power, instant lighting luminance of the LEDs is improved. Though peak power is quite high, average power is not high, and the service lives of the LEDs are unaffected.
Description
Technical field
The present invention relates to intelligent transportation field, particularly the highlighted LED stroboscopic of a kind of condenser type light filling lamp system.
Background technology
Begin to popularize in the video recording of intelligent transportation field high definition, the floor light of high definition video recording is absolutely necessary.The LED stroboscopic lamp is absorbed in intelligent transportation field, for various capturing systems are developed, is used for the light filling that high-definition digital video camera is captured.Be the working environment of electronic police such as comply with public security bayonet socket, overspeed snapping, make a dash across the red light and functional requirement and the novel high-power high-performance digital LED stroboscopic lamp developed.This product adopts unique digital control circuit, have the fast life-span of wiring back long, accurately control characteristics such as continuing to improve greatly in the camera exposure phase with high-power square wave form output (power density is big) light output energy in flash time, flash of light moment.Can make and luminously reach the most perfect combination with the video camera time for exposure by regulating flash of light length, thereby reduce the influence of human eye greatly and reduce the interference of surround lighting to taking pictures to greatest extent.To the stimulation of human eye, LED can be set at and to be in weak bright state usually in order to reduce to glisten, back high strength flash of light is triggered.Also LED can be set at the state that goes out usually.
All there is a problem in present floor light, namely can only accomplish energy-conservation, but can not be in the brightness of accomplishing to improve in energy-conservation bright dipping, in video recording, not fogging clear problem is arranged still, iff the brightness of regulating camera, cause the distortion of whole picture easily, the problem of the illumination deficiency when particularly high definition is recorded a video is particularly outstanding.
Though existing LED light filling lamp is very bright, be not enough to satisfy the demand of high definition shooting candid photograph, though and stroboscopic lamp on the market energy-conservation, but brightness still is on the weak side, only is the output light of constant light being made the PWM mode.For example, as shown in Figure 1, publication number is to disclose a kind of LED light filling lamp light adjusting circuit in the Chinese invention patent application of CN103025031A, and it comprises LDU module 101, voltage sampling circuit 102, amplifier 103, single-chip microcomputer 104 and constant-current drive circuit 105; Constant-current drive circuit 105 passes through the output control signal of the PWM mouth reception single-chip microcomputer on it, and according to signal driving LED 107.Represent and adopt constant PWM mode to control the LED lamp in the foregoing invention of prior art, brightness can't reach the requirement of high definition shooting.
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, the present invention is based on condenser type high-voltage pulse actuation techniques, the highlighted LED stroboscopic of a kind of condenser type light filling lamp system has been proposed, the demand of high definition shooting has been satisfied in brightness, also can not influence peripheral light environment simultaneously.
The technical scheme that the present invention proposes is as follows:
The highlighted LED stroboscopic of a kind of condenser type light filling lamp system comprises transformer T1, capacitor C1, single-chip microcomputer, switch Q1 and LED lamp pearl, it is characterized in that, described transformer T1 as input, exports a voltage V with civil power
InThe two ends of the circuit of forming to the two ends of described capacitor C1 and by described LED lamp pearl and described switch Q1 series connection, wherein 2V
Rating＜V
In＜V
Critical, V
RatingBe the rated operational voltage of described LED lamp pearl, V
CriticalDisruptive critical voltage for described LED lamp pearl; Described capacitor C1 is in parallel with the described circuit that is composed in series by LED lamp pearl and switch Q1, and it is used for stored charge, and its charge stored energy is
Wherein C is the capacitance of described capacitor C1; The switching of the described switch Q1 of described Single-chip Controlling, when described switch Q1 was closed, described capacitor C1 sparked to described LED lamp pearl, made the moment luminosity of described LED lamp pearl surpass its specified luminosity.
Preferably, described LED lamp pearl is composed in series by 6 LED lamp D5 to D10.
Preferably, be connected with two diode D1 and D3 on the output of described transformer T1, described diode D1 and D3 lay respectively at the both sides of described output, and described diode D1 is connected to the positive pole of described capacitor C1, and described diode D3 is connected to the negative pole of described capacitor C1.
Preferably, be connected with two diode D2 and D4 on another output of described transformer T1, described diode D1 and D3 lay respectively at the both sides of described another output, described diode D2 is connected to the positive pole of described capacitor C1, and described diode D3 is connected to the negative pole of described capacitor C1.
Compared with prior art, the invention has the beneficial effects as follows:
(1) improved the instantaneous light emission brightness of LED lamp, but the power of power supply does not increase;
(2) though peak power is very high, mean power is not high, does not influence the service life of LED lamp.
Description of drawings
Fig. 1 is the structure chart of the LED light filling lamp system of representative prior art;
Fig. 2 is the structure chart of the highlighted LED stroboscopic of condenser type light filling lamp system proposed by the invention.
The specific embodiment
The present invention is described further below in conjunction with drawings and Examples.
As shown in Figure 2, the highlighted LED stroboscopic of the condenser type light filling lamp system that the present invention proposes comprises transformer T1, capacitor C1, single-chip microcomputer, switch Q1 and LED lamp pearl, it is characterized in that described transformer T1 as input, exports a voltage V with civil power
InThe two ends of the circuit of forming to the two ends of described capacitor C1 and by described LED lamp pearl and described switch Q1 series connection, wherein 2V
Rating＜V
In＜V
Critical, V
RatingBe the rated operational voltage of described LED lamp pearl, V
CriticalDisruptive critical voltage for described LED lamp pearl; Described capacitor C1 is in parallel with the described circuit that is composed in series by LED lamp pearl and switch Q1, and it is used for stored charge, and its charge stored energy is
Wherein C is the capacitance of described capacitor C1; The switching of the described switch Q1 of described Single-chip Controlling, when described switch Q1 was closed, described capacitor C1 sparked to described LED lamp pearl, made the moment luminosity of described LED lamp pearl surpass its specified luminosity.
Preferably, described LED lamp pearl is composed in series by 6 LED lamp D5 to D10.
Preferably, be connected with two diode D1 and D3 on the output of described transformer T1, described diode D1 and D3 lay respectively at the both sides of described output, and described diode D1 is connected to the positive pole of described capacitor C1, and described diode D3 is connected to the negative pole of described capacitor C1.
Preferably, be connected with two diode D2 and D4 on another output of described transformer T1, described diode D1 and D3 lay respectively at the both sides of described another output, described diode D2 is connected to the positive pole of described capacitor C1, and described diode D3 is connected to the negative pole of described capacitor C1.
The effect of above-mentioned diode D1-D4 is that the alternating current that transformer T1 exports is carried out rectification, thereby obtains direct current.
In electronic circuit, electric capacity is used for intercepting direct current by interchange, also is used for storage and release electric charge to serve as wave filter, level and smooth output ripple signal.The electric capacity of low capacity uses in high-frequency circuit usually; Jumbo electric capacity does filtering often and stored charge is used.
Capacitor C1 charge stored energy is
That is to say that working as storage capacitor voltage doubles, energy improves more than 4 times at least.
The technical solution adopted in the present invention is that the LED modulating voltage is promoted to more than the twice of rated operational voltage, below the disruptive critical voltage, energy is stored not triggering in a bit of time that the light filling lamp throws light on, in the needs illumination, concentrate the method that discharges, adopt this method only to improve peak power, but mean power is still very low, not only led chip emitting brightness but also saves energy have been improved, and can also guarantee the working life of led chip.
Should be noted that at last above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail; those of ordinary skill in the field are to be understood that; still can make amendment or the part technical characterictic is equal to the specific embodiment of the present invention and replace and do not break away from the spirit of technical solution of the present invention, it all should be contained in the middle of the technical scheme scope that the present invention asks for protection.
Claims (4)
1. the highlighted LED stroboscopic of a condenser type light filling lamp system comprises transformer T1, capacitor C1, single-chip microcomputer, switch Q1 and LED lamp pearl, it is characterized in that, described transformer T1 as input, exports a voltage V with civil power
InThe two ends of the circuit of forming to the two ends of described capacitor C1 and by described LED lamp pearl and described switch Q1 series connection, wherein 2V
Rating＜V
In＜V
Critical, V
RatingBe the rated operational voltage of described LED lamp pearl, V
CriticalDisruptive critical voltage for described LED lamp pearl; Described capacitor C1 is in parallel with the described circuit that is composed in series by LED lamp pearl and switch Q1, and it is used for stored charge, and its charge stored energy is
Wherein C is the capacitance of described capacitor C1; The switching of the described switch Q1 of described Single-chip Controlling, when described switch Q1 was closed, described capacitor C1 sparked to described LED lamp pearl, made the moment luminosity of described LED lamp pearl surpass its specified luminosity.
2. the highlighted LED stroboscopic of condenser type as claimed in claim 1 light filling lamp system, be connected with two diode D1 and D3 on the output of wherein said transformer T1, described diode D1 and D3 lay respectively at the both sides of described output, described diode D1 is connected to the positive pole of described capacitor C1, and described diode D3 is connected to the negative pole of described capacitor C1.
3. the highlighted LED stroboscopic of condenser type as claimed in claim 2 light filling lamp system, be connected with two diode D2 and D4 on another output of wherein said transformer T1, described diode D1 and D3 lay respectively at the both sides of described another output, described diode D2 is connected to the positive pole of described capacitor C1, and described diode D3 is connected to the negative pole of described capacitor C1.
4. as the highlighted LED stroboscopic of each described condenser type of claim 1-3 light filling lamp system, wherein said LED lamp pearl is composed in series by 6 LED lamp D5 to D10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101390664A CN103196095A (en) | 2013-04-22 | 2013-04-22 | Capacitive high-brightness LED stroboscopic light filling lamp system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101390664A CN103196095A (en) | 2013-04-22 | 2013-04-22 | Capacitive high-brightness LED stroboscopic light filling lamp system |
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| CN103196095A true CN103196095A (en) | 2013-07-10 |
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|---|---|---|---|
| CN2013101390664A Pending CN103196095A (en) | 2013-04-22 | 2013-04-22 | Capacitive high-brightness LED stroboscopic light filling lamp system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607805A (en) * | 2013-10-24 | 2014-02-26 | 常熟恒富昱光电有限公司 | Secondary auxiliary power supply circuit applied to isolated LED driving power supply |
| CN103712101A (en) * | 2013-12-12 | 2014-04-09 | 苏州斯普锐智能系统有限公司 | LED (Light-emitting Diode) lighting module with energy storage element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1215944A1 (en) * | 2000-12-14 | 2002-06-19 | General Electric Company | Light emitting diode power supply |
| CN101876776A (en) * | 2010-06-09 | 2010-11-03 | 合肥路之达智能科技有限公司 | ITS (Intelligent Transportation System) highlight LED and flashlight |
| CN101917808A (en) * | 2010-08-12 | 2010-12-15 | 深圳市中盟科技股份有限公司 | Stroboscopic traffic fill light and control method thereof |
| CN201811083U (en) * | 2010-08-24 | 2011-04-27 | 上海宝康电子控制工程有限公司 | Light supplementing lamp for road monitoring equipment |
-
2013
- 2013-04-22 CN CN2013101390664A patent/CN103196095A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1215944A1 (en) * | 2000-12-14 | 2002-06-19 | General Electric Company | Light emitting diode power supply |
| CN101876776A (en) * | 2010-06-09 | 2010-11-03 | 合肥路之达智能科技有限公司 | ITS (Intelligent Transportation System) highlight LED and flashlight |
| CN101917808A (en) * | 2010-08-12 | 2010-12-15 | 深圳市中盟科技股份有限公司 | Stroboscopic traffic fill light and control method thereof |
| CN201811083U (en) * | 2010-08-24 | 2011-04-27 | 上海宝康电子控制工程有限公司 | Light supplementing lamp for road monitoring equipment |
Non-Patent Citations (1)
| Title |
|---|
| 周迎新等: "LED补光灯的设计与研究", 《2012（杭州）中国长三角照明科技论坛论文集》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607805A (en) * | 2013-10-24 | 2014-02-26 | 常熟恒富昱光电有限公司 | Secondary auxiliary power supply circuit applied to isolated LED driving power supply |
| CN103712101A (en) * | 2013-12-12 | 2014-04-09 | 苏州斯普锐智能系统有限公司 | LED (Light-emitting Diode) lighting module with energy storage element |
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Application publication date: 20130710 |