CN103874309A - Novel xenon street lamp variable-frequency drive circuit - Google Patents
Novel xenon street lamp variable-frequency drive circuit Download PDFInfo
- Publication number
- CN103874309A CN103874309A CN201410120350.1A CN201410120350A CN103874309A CN 103874309 A CN103874309 A CN 103874309A CN 201410120350 A CN201410120350 A CN 201410120350A CN 103874309 A CN103874309 A CN 103874309A
- Authority
- CN
- China
- Prior art keywords
- street lamp
- control chip
- xenon street
- electrically connected
- drive circuit
- 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
Images
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The invention discloses a novel xenon street lamp variable-frequency drive circuit. The novel xenon street lamp variable-frequency drive circuit comprises a sampling circuit, a switching circuit, an oscillation resistor, a first oscillation capacitor, a second oscillation capacitor and a control chip. The switching circuit is connected with the second oscillation capacitor in series and then is connected with the first oscillation capacitor in parallel. The first end of the first oscillation capacitor is electrically connected with the first input end of the control chip. The second end of the first oscillation capacitor is electrically connected with the ground terminal of the control chip. The first end of the oscillation resistor is electrically connected with the first input end of the control chip. The second end of the oscillation resistor is electrically connected with the second input end of the control chip. The novel xenon street lamp variable-frequency drive circuit can automatically adapt to two different operating states, including a cold state and a hot state, of a xenon street lamp; overload output of a driving source when the xenon street lamp is in a cold state with low impedance is avoided on the premise that the excellent characteristics that the xenon street lamp lights up immediately the xenon street lamp is switched on and the xenon street lamp illuminates with constant power are guaranteed; in this way, the reliability of the driving source and the xenon street lamp are improved.
Description
Technical field
The present invention relates to a kind of Novel xenon street lamp frequency conversion drive circuit.
Background technology
In lighting source, xenon street lamp is a kind of good lighting source, and it has good color rendering index and opens is bright superperformance, has overcome the disadvantage of a lot of conventional light source.But cold conditions and the voltage-current characteristic (hereinafter to be referred as " V-A characteristic ") that shows when hot have bigger difference in the course of the work for they, when xenon street lamp has just started in cold conditions operating state, characteristic impedance is less, xenon street lamp starts after a period of time in hot operating state, characteristic impedance raises gradually, this just requires xenon streetlamp driving power supply can automatically adapt to xenon street lamp at cold conditions and the V-A property difference when hot, realizes xenon street lamp and under which kind of state, all has reliable permanent power illumination characteristic.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of Novel xenon street lamp frequency conversion drive circuit, can automatically adapt to cold conditions and hot these two kinds of different operating states of xenon street lamp, ensure xenon street lamp open be bright and the prerequisite of the good characteristic of permanent power illumination under, avoid driving power overload output during in cold conditions, Low ESR at xenon street lamp, improved the reliability of driving power and xenon street lamp.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of Novel xenon street lamp frequency conversion drive circuit is provided, comprise sample circuit, switching circuit, oscillation resistance, the first oscillating capacitance, the second oscillating capacitance and control chip, after being connected in series, described switching circuit and described the second oscillating capacitance be connected in parallel with described the first oscillating capacitance again, the first end of described the first oscillating capacitance and the first input end of described control chip are electrically connected, the second end of the first oscillating capacitance and the earth terminal of described control chip are electrically connected, the first end of described oscillation resistance and the first input end of described control chip are electrically connected, the second input of the second end of oscillation resistance and described control chip is electrically connected.
In a preferred embodiment of the present invention, described switching circuit comprises triode.
In a preferred embodiment of the present invention, the base stage of described sample circuit and described triode is electrically connected.
In a preferred embodiment of the present invention, the second end of described the first oscillating capacitance and the emitter of described triode are electrically connected.
In a preferred embodiment of the present invention, the first end of the first end of described the second oscillating capacitance and described the first oscillating capacitance is electrically connected, and the second end of the second oscillating capacitance and the collector electrode of described triode are electrically connected.
In a preferred embodiment of the present invention, described control chip is 555 timers.
In a preferred embodiment of the present invention, the power input of described control chip connects power supply.
The invention has the beneficial effects as follows: the present invention can adapt to cold conditions and hot these two kinds of different operating states of xenon street lamp automatically, ensure xenon street lamp open be bright and the prerequisite of the good characteristic of permanent power illumination under, avoid driving power overload output during in cold conditions, Low ESR at xenon street lamp, improved the reliability of driving power and xenon street lamp.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is electrical block diagram of the present invention;
Fig. 2 is when xenon street lamp is during in cold conditions, circuit structure isoboles of the present invention;
Fig. 3 is when xenon street lamp is when hot, circuit structure isoboles of the present invention.
In accompanying drawing, the mark of each parts is as follows: C1, the first oscillating capacitance; C2, the second oscillating capacitance; R, oscillation resistance; U, control chip; V, triode.
Embodiment
To the technical scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 3, the embodiment of the present invention comprises:
A kind of Novel xenon street lamp frequency conversion drive circuit, comprise sample circuit, switching circuit, oscillation resistance R, the first oscillating capacitance C1, the second oscillating capacitance C2 and control chip U, after being connected in series, described switching circuit and described the second oscillating capacitance C2 be connected in parallel with described the first oscillating capacitance C1 again, the first input end of the first end of described the first oscillating capacitance C1 and described control chip U is electrically connected, the second end of the first oscillating capacitance C1 and the earth terminal of described control chip U are electrically connected, the first input end of the first end of described oscillation resistance R and described control chip U is electrically connected, the second input of the second end of oscillation resistance R and described control chip U is electrically connected.
Wherein, described switching circuit comprises triode V, and the base stage of described sample circuit and described triode V is electrically connected.The second end of described the first oscillating capacitance C1 and the emitter of described triode V are electrically connected.The first end of the first end of described the second oscillating capacitance C2 and described the first oscillating capacitance C1 is electrically connected, and the second end of the second oscillating capacitance C2 and the collector electrode of described triode V are electrically connected.
In the present embodiment, described control chip U is 555 timers.The power input of described control chip U connects power supply.
Operation principle of the present invention is: described sample circuit detects the V-A characteristic impedance of xenon street lamp, by its testing result control triode V break-make, thereby control the total capacitance value between first input end and the earth terminal of described control chip U, finally reach the object of output signal frequency of controlling described control chip U, to realize xenon street lamp cold conditions and the different driving condition when hot.
When xenon street lamp is during in cold conditions operating state, described sample circuit is according to triode V conducting described in corresponding V-A characteristic signals control, now, total capacitance value between first input end and the earth terminal of described control chip U is the first oscillating capacitance C1 value and the second oscillating capacitance C2 value sum, the output signal frequency of control chip U is lower, and equivalent electric circuit corresponding to the present invention as shown in Figure 2; When xenon street lamp is during in hot operating state, described sample circuit disconnects according to triode V described in corresponding V-A characteristic signals control, now, total capacitance value between first input end and the earth terminal of described control chip U is the first oscillating capacitance C1 value, the output signal frequency of control chip U is higher, and equivalent electric circuit corresponding to the present invention as shown in Figure 3.
The present invention can adapt to cold conditions and hot these two kinds of different operating states of xenon street lamp automatically, ensure xenon street lamp open be bright and the prerequisite of the good characteristic of permanent power illumination under, avoid driving power overload output during in cold conditions, Low ESR at xenon street lamp, improved the reliability of driving power and xenon street lamp.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. a Novel xenon street lamp frequency conversion drive circuit, it is characterized in that, comprise sample circuit, switching circuit, oscillation resistance (R), the first oscillating capacitance (C1), the second oscillating capacitance (C2) and control chip (U), after being connected in series, described switching circuit and described the second oscillating capacitance be connected in parallel with described the first oscillating capacitance again, the first end of described the first oscillating capacitance and the first input end of described control chip are electrically connected, the second end of the first oscillating capacitance and the earth terminal of described control chip are electrically connected, the first end of described oscillation resistance and the first input end of described control chip are electrically connected, the second input of the second end of oscillation resistance and described control chip is electrically connected.
2. Novel xenon street lamp frequency conversion drive circuit according to claim 1, is characterized in that, described switching circuit comprises triode (V).
3. Novel xenon street lamp frequency conversion drive circuit according to claim 2, is characterized in that, the base stage of described sample circuit and described triode is electrically connected.
4. Novel xenon street lamp frequency conversion drive circuit according to claim 2, is characterized in that, the second end of described the first oscillating capacitance and the emitter of described triode are electrically connected.
5. Novel xenon street lamp frequency conversion drive circuit according to claim 2, it is characterized in that, the first end of the first end of described the second oscillating capacitance and described the first oscillating capacitance is electrically connected, and the second end of the second oscillating capacitance and the collector electrode of described triode are electrically connected.
6. Novel xenon street lamp frequency conversion drive circuit according to claim 1, is characterized in that, described control chip is 555 timers.
7. Novel xenon street lamp frequency conversion drive circuit according to claim 1, is characterized in that, the power input of described control chip connects power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120350.1A CN103874309A (en) | 2014-03-28 | 2014-03-28 | Novel xenon street lamp variable-frequency drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120350.1A CN103874309A (en) | 2014-03-28 | 2014-03-28 | Novel xenon street lamp variable-frequency drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103874309A true CN103874309A (en) | 2014-06-18 |
Family
ID=50912327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120350.1A Pending CN103874309A (en) | 2014-03-28 | 2014-03-28 | Novel xenon street lamp variable-frequency drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103874309A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03266395A (en) * | 1990-03-15 | 1991-11-27 | Matsushita Electric Works Ltd | Electric discharge lamp lighting device |
| JPH0850994A (en) * | 1994-08-09 | 1996-02-20 | Fuji Electric Co Ltd | Lighting device for electric discharge lamp |
| US5550436A (en) * | 1994-09-01 | 1996-08-27 | International Rectifier Corporation | MOS gate driver integrated circuit for ballast circuits |
| JP2000046969A (en) * | 1998-07-27 | 2000-02-18 | Toshiba Lighting & Technology Corp | Attachment time constant ic circuit, discharge lamp lighting device and illumination device for timer |
| CN1774153A (en) * | 2005-10-29 | 2006-05-17 | 阮树成 | Variable frequency preheating restartable fluorescent lamp electronic relay with abnormal protection |
| CN2845392Y (en) * | 2005-10-29 | 2006-12-06 | 阮树成 | Electronic fluorescent ballast with frequency converting pre-heating, re-starting and abnormal protecting |
| CN101237739A (en) * | 2007-05-18 | 2008-08-06 | 张福明 | HID rectifier and its control method |
| CN101861039A (en) * | 2010-04-23 | 2010-10-13 | 南京众森太盛机电实业有限公司 | Control circuit of metal halide headlamp of digitized locomotive |
-
2014
- 2014-03-28 CN CN201410120350.1A patent/CN103874309A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03266395A (en) * | 1990-03-15 | 1991-11-27 | Matsushita Electric Works Ltd | Electric discharge lamp lighting device |
| JPH0850994A (en) * | 1994-08-09 | 1996-02-20 | Fuji Electric Co Ltd | Lighting device for electric discharge lamp |
| US5550436A (en) * | 1994-09-01 | 1996-08-27 | International Rectifier Corporation | MOS gate driver integrated circuit for ballast circuits |
| JP2000046969A (en) * | 1998-07-27 | 2000-02-18 | Toshiba Lighting & Technology Corp | Attachment time constant ic circuit, discharge lamp lighting device and illumination device for timer |
| CN1774153A (en) * | 2005-10-29 | 2006-05-17 | 阮树成 | Variable frequency preheating restartable fluorescent lamp electronic relay with abnormal protection |
| CN2845392Y (en) * | 2005-10-29 | 2006-12-06 | 阮树成 | Electronic fluorescent ballast with frequency converting pre-heating, re-starting and abnormal protecting |
| CN101237739A (en) * | 2007-05-18 | 2008-08-06 | 张福明 | HID rectifier and its control method |
| CN101861039A (en) * | 2010-04-23 | 2010-10-13 | 南京众森太盛机电实业有限公司 | Control circuit of metal halide headlamp of digitized locomotive |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103052227B (en) | Led driving system | |
| CN203136242U (en) | LED constant-current circuit with PWM light modulation | |
| KR101414902B1 (en) | AC LED driving circuit | |
| CN106163056B (en) | A kind of light power control system based on light level | |
| CN203912292U (en) | Sectional type light modulation circuit and light modulation illumination device | |
| CN104427692A (en) | Light-controlled automatic switch circuit and lamp | |
| CN204069460U (en) | A kind of Novel xenon street lamp variable frequency drive | |
| CN103874309A (en) | Novel xenon street lamp variable-frequency drive circuit | |
| CN105392247A (en) | LED drive circuit | |
| EP1937038A2 (en) | Power regulator | |
| CN205093002U (en) | LED drive circuit | |
| CN204465952U (en) | A kind of LED energy-saving circuit based on MSP430 | |
| CN210629925U (en) | LED control circuit and device compatible with silicon controlled rectifier dimmer | |
| CN104640287A (en) | Light control circuit and lamp | |
| CN208707993U (en) | A kind of driving circuit for automobile lamp list lamp | |
| CN204244504U (en) | A kind of drive circuit of ballast formula LED | |
| CN207802450U (en) | The light source driving circuit and light source module of tunable optical | |
| CN204350371U (en) | Led light adjusting circuit | |
| CN206932448U (en) | Constant pressure exports the LED drive power of tunable optical | |
| CN109302771A (en) | LED constant current drive module | |
| CN103179730A (en) | Dimming control circuit, dimming control device and lamp | |
| CN206294392U (en) | LED double-tone light circuit | |
| CN204408691U (en) | A kind of LED power charge/discharge control circuit | |
| CN105792466B (en) | Infrared induction drive control circuit and illumination control circuit | |
| CN107896406B (en) | A kind of synchronous dimming driving circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140618 |
|
| RJ01 | Rejection of invention patent application after publication |