CN101227785A - Timing dimming circuit of high voltage sodium lamp electronic ballast and operating method thereof - Google Patents
Timing dimming circuit of high voltage sodium lamp electronic ballast and operating method thereof Download PDFInfo
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- CN101227785A CN101227785A CNA2007100195870A CN200710019587A CN101227785A CN 101227785 A CN101227785 A CN 101227785A CN A2007100195870 A CNA2007100195870 A CN A2007100195870A CN 200710019587 A CN200710019587 A CN 200710019587A CN 101227785 A CN101227785 A CN 101227785A
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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
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- 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
Abstract
The invention discloses a timing light modulation circuit of a high-pressure sodium lamp electronic amperite and a method for working, wherein the timing light modulation circuit comprises a decompression filter circuit, a wave shaping circuit, a frequency dividing circuit and a switching circuit which are connected with alternating current, wherein an output end of the decompression filter circuit is connected with a shaping signal input end of the wave shaping circuit, the shaping signal output end of the wave shaping circuit is connected with a frequency dividing signal input end of the frequency dividing circuit, a frequency dividing signal output end of the frequency dividing circuit is connected with a timing control signal input end of the wave shaping circuit, a timing control signal output end of the wave shaping circuit is connected with a locking control input end of the frequency dividing circuit and an on-off control input end of the switching circuit, and a power control output end of the switching circuit is used to connect with a power control input end of the high-pressure sodium lamp electronic amperite to control output power of the high-pressure sodium lamp electronic amperite, which regulates the output power of the high-pressure sodium lamp in different time segments according to practical illuminating brightness requirements and realizes illuminating energy-saving.
Description
Technical field
The present invention relates to a kind of timing dimming circuit and method of work thereof of electronic ballast of high voltage sodium lamp.
Background technology
High-intensity gas discharge lamp (HID lamp) is a purposes novel energy-saving electric light source very widely, has compared advantages such as energy-conservation, that volume is little, spectrum good, luminous efficiency is high, the life-span is long with incandescent lamp, becomes the preferred light source of public place and domestic lighting gradually.The same with all gas discharge electric light sources, high-pressure sodium lamp needs ballast to suppress to flow through the electric current of HID lamp, and needs the gas breakdown voltage of 3～4kV when starting.
Chinese patent literature CN2847788 discloses a kind of electronic ballast of high voltage sodium lamp, include the filter circuit, first rectification circuit, circuit of power factor correction, high frequency conversion circuit and the start-up circuit that connect successively, above-mentioned high frequency conversion circuit connects the pwm pulse control circuit, above-mentioned circuit of power factor correction, pwm pulse control circuit and start-up circuit all are connected with low-voltage dc circuit, also be connected with second rectification circuit between filter circuit and the low-voltage dc circuit, second rectification circuit has independently ground connection.
Along with social development, energy scarcity is with long-standing problem, more and more higher to requirements of saving energy, aspect road lighting, requirement before midnight the vehicle stream of people more for a long time, illuminating effect is had relatively high expectations, and to the time after midnight vehicle stream of people after a little while, for reaching purpose of energy saving, require lamplight brightness is dimmed.
Summary of the invention
The purpose of this invention is to provide a kind of timing dimming circuit that can adjust the high-pressure sodium electric ballast of high-pressure sodium lamp power output according to the requirement of actual illumination brightness in the different time periods.
For realizing above-mentioned purpose of the present invention, the technical solution used in the present invention is as follows:
The timing dimming circuit of electronic ballast of high voltage sodium lamp of the present invention comprises: the step-down filter circuit that is used for linking to each other with alternating current, be used for the sine wave shaped of described alternating current be square wave shaping circuit, be used for the frequency of alternating current is carried out the frequency dividing circuit and the switching circuit of frequency division; The reshaping signal input of the output termination shaping circuit of step-down filter circuit; The fractional frequency signal input of the reshaping signal output termination frequency dividing circuit of shaping circuit, the timing controling signal input of the fractional frequency signal output termination shaping circuit of frequency dividing circuit; The locking control input end of the timing controling signal output termination frequency dividing circuit of shaping circuit and the switch control input end of switching circuit; Switching circuit has the power control output end of exportable varying level, is used for linking to each other with the power output of control electronic ballast of high voltage sodium lamp with the power control input end of electronic ballast of high voltage sodium lamp.
In the technique scheme, described frequency dividing circuit comprises first frequency dividing circuit and second frequency dividing circuit; The fractional frequency signal input of fractional frequency signal output termination second frequency dividing circuit of first frequency dividing circuit; The fractional frequency signal input of frequency dividing circuit is the fractional frequency signal input of first frequency dividing circuit; The fractional frequency signal output of frequency dividing circuit is the fractional frequency signal output of second frequency dividing circuit; The locking control input end of frequency dividing circuit is the locking control input end of first frequency dividing circuit.
In the technique scheme, in the step-down filter circuit, the dropping resistor R61 that links to each other with alternating current is connected in series the reshaping signal input that connects shaping circuit behind filter inductance L11, the divider resistance R64 successively; Resistance R 63 and filter capacitor C31 are in parallel and constitute filter circuit and be located between filter inductance L11 one end and the ground wire; Capacitor C 32 is located between the filter inductance L11 other end and the ground wire.
In the technique scheme, described shaping circuit is Schmidt's modular circuit.
In the technique scheme, described switching circuit is the analog switch modular circuit, and switching circuit has the power control output end, is used for linking to each other with control electronic ballast of high voltage sodium lamp power output with the power control input end of electronic ballast of high voltage sodium lamp.
The method of work of the timing dimming circuit of above-mentioned electronic ballast of high voltage sodium lamp comprises the steps:
A, alternating current are sent into the reshaping signal input of shaping circuit behind the step-down filter circuit as signal source;
B, shaping circuit are square wave with the sine wave shaped of described alternating current, and export the fractional frequency signal input of this square wave to frequency dividing circuit from its timing controling signal output;
C, frequency dividing circuit carry out frequency division to described square wave, and the described square wave behind the frequency division are delivered to the timing controling signal input of shaping circuit;
When D, the square wave after the timing controling signal input of shaping circuit records the described frequency division of complete cycle, the timing controling signal output output high level of shaping circuit is to the locking control input end of frequency dividing circuit and the switch control input end of switching circuit, so that the output level of the fractional frequency signal output of frequency dividing circuit is constant, promote the also level of the power control output end of maintained switch circuit simultaneously, be used for reducing and keeping the electronic ballast of high voltage sodium lamp power output.
The present invention has the following advantages with respect to existing electric ballast: (1) the present invention with city's alternating current (is 50Hz in China) as the timing signal source, with the sine wave shaped of alternating current is frequency division behind the square wave, is used to control the timing controling signal of shaping circuit with generation; When timing then, the level of the power control output end of the timing controling signal output control switch circuit of shaping circuit, can change the voltage of the power control input end of electronic ballast of high voltage sodium lamp, finally controlled the frequency of oscillation of electronic ballast of high voltage sodium lamp, thereby change the output impedance of electronic ballast of high voltage sodium lamp, reach the purpose of light modulation.Wherein, frequency dividing circuit is the square waves of several hours for the square wave of 50Hz is divided into the cycle before frequency division, promptly form timing controling signal, described timing is behind the frequency division rectangle wave period, with satisfy before midnight the vehicle stream of people more for a long time, road lighting lamp throws light on normal power, and to the time after midnight vehicle stream of people after a little while, then it reduces lighting power.(2) because of existing single frequency divider only the square wave frequency division of 50Hz can be become the cycle be 5 hours with interior square wave, so frequency dividing circuit of the present invention comprises a plurality of frequency dividing circuits, be suitable for frequency with the frequency decomposition Cheng Gengxiao of city's alternating current, further can prolong behind the frequency division rectangle wave period, as reach 6 to 8 hours, to further facilitate energy-conserving regulate and control.(3) among the present invention, the step-down filter circuit construction is simple, and is with low cost, step-down and good wave filtering effect; Shaping circuit is Schmidt's modular circuit, and switching circuit is the analog switch modular circuit, simple in structure, control convenience and with low cost.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below the specific embodiment of basis and application examples and in conjunction with the accompanying drawings, to further detailed explanation of the present invention, wherein
Fig. 1 is timing dimming circuit of the present invention and the circuit block diagram that can be mated the electronic ballast of high voltage sodium lamp of use;
Fig. 2 is the circuit theory diagrams of the timing dimming circuit of electronic ballast of high voltage sodium lamp of the present invention;
Fig. 3 is the circuit theory diagrams of the electronic ballast of high voltage sodium lamp that uses of matching with timing dimming circuit of the present invention.
Embodiment
See Fig. 1, the timing dimming circuit of electronic ballast of high voltage sodium lamp of the present invention comprises: step-down filter circuit 11, shaping circuit 12, frequency dividing circuit 13 and switching circuit 14; The reshaping signal input of the output termination shaping circuit 12 of step-down filter circuit 11; The fractional frequency signal input of the reshaping signal output termination frequency dividing circuit 13 of shaping circuit 12, the timing controling signal input of the fractional frequency signal output termination shaping circuit 12 of frequency dividing circuit 13; The locking control input end of the timing controling signal output termination frequency dividing circuit 13 of shaping circuit 12 and the switch control input end of switching circuit 14; Switching circuit 14 has the power control output end of exportable varying level, is used for linking to each other with the power output of control electronic ballast of high voltage sodium lamp with the power control input end of electronic ballast of high voltage sodium lamp.
Described shaping circuit 12 is Schmidt's modular circuit U6, and model is CD4011BE, and shaping circuit 12 is used for the sine wave of alternating current and other clutter are converted to square wave.It is the analog switch module U9 of CD4051BE that switching circuit 14 adopts model.
See Fig. 2, in the step-down filter circuit 11, the ac power input end of the alternating current of 220V, 50Hz through sending into Schmidt's modular circuit U6 successively mutually behind dropping resistor R61, filter inductance L11, the divider resistance R64 of serial connection is 12 and 13 pin of Schmidt's modular circuit U6; Filter capacitor C31 and C32 connect earth connection behind the filter inductance L11 two ends respectively, and resistance R 63 is in parallel with filter capacitor C31.The reshaping signal output of shaping circuit 12 is 10 pin of Schmidt's modular circuit U6.Be provided with resistance R 65 between 10 pin of Schmidt's modular circuit U6 and 13 pin.Capacitor C 33 is located between 10 pin and ground wire of U6, to constitute filter circuit with R65.
See Fig. 2, switching circuit 14 power control output ends are 14 pin of analog switch module U9, link to each other with the power control input end of control electronic ballast of high voltage sodium lamp behind its serial connection divider resistance R9 and the R70, to control the electronic ballast of high voltage sodium lamp power output.Filter capacitor C39 is located between 14 pin and ground wire of analog switch module U9; Filter capacitor C40 is located between divider resistance R70 one end and the ground wire.Capacitor C 38 and voltage-stabiliser tube ZW1 are in parallel and filter circuit of pressure-stabilizing that constitute is located between power end 16 pin and ground wire of analog switch module U9.
The method of work of the timing dimming circuit of above-mentioned electronic ballast of high voltage sodium lamp comprises the steps:
A, alternating current are sent into the reshaping signal input of shaping circuit 12 behind step-down filter circuit 11 as signal source;
B, shaping circuit 12 are square wave with the sine wave shaped of described alternating current, and export the fractional frequency signal input of this square wave to frequency dividing circuit 13 from its timing controling signal output;
C, 13 pairs of described square waves of frequency dividing circuit carry out frequency division, and the described square wave behind the frequency division are delivered to the timing controling signal input of shaping circuit 12; In the present embodiment, after the alternating current of 13 couples of 50Hz of frequency dividing circuit carried out frequency division, gained rectangle wave period was 4 hours.
When D, the square wave after the timing controling signal input of shaping circuit 12 records the described frequency division of complete cycle, the timing controling signal output output high level of shaping circuit 12 is to the locking control input end of frequency dividing circuit 13 and the switch control input end of switching circuit 14, so that the output level of the fractional frequency signal output of frequency dividing circuit 13 is constant, promote the also level of the power control output end of maintained switch circuit 14 simultaneously, be used for reducing and keeping the electronic ballast of high voltage sodium lamp power output.
On the basis of the foregoing description, present embodiment also can have following distortion:
See Fig. 1-2, described frequency dividing circuit 13 comprises the first frequency dividing circuit 13-1 and the second frequency dividing circuit 13-2, and promptly model is frequency division module U7 and the U8 of CD4060BE; The fractional frequency signal output of the first frequency dividing circuit 13-1 (being 1 pin of frequency division module U7) connects the fractional frequency signal input (being 11 pin of frequency division module U8) of the second frequency dividing circuit 13-2; The fractional frequency signal input of the frequency dividing circuit 13 of the foregoing description is the fractional frequency signal input (being 11 pin of frequency division module U7) of the first frequency dividing circuit 13-1; The fractional frequency signal output of frequency dividing circuit 13 is the fractional frequency signal output (being 7 pin and 13 pin of frequency division module U8) of the second frequency dividing circuit 13-2; The timing controling signal input of shaping circuit 12 is 5 pin and 6 pin of Schmidt's modular circuit U6.7 pin of frequency division module U8 and 13 pin connect 5 pin and 6 pin of Schmidt's modular circuit U6 respectively.Power end 16 pin of frequency division module U7 are provided with the filter circuit of resistance R 66 and filter capacitor C34 composition; Power end 16 pin of frequency division module U8 are provided with the filter circuit of resistance R 67 and filter capacitor C37 composition; Filter capacitor C35 is located between power end 16 pin and ground wire of frequency division module U7; Filter capacitor C36 is located between 11 pin and ground wire of frequency division module U8.
The timing controling signal output of shaping circuit 12 (being 3 pin of Schmidt's modular circuit U6) connects the locking control input end (being 11 pin of analog switch module U9) of frequency dividing circuit 13 and the switch control input end (being 12 pin of frequency division module U7) of switching circuit 14.
The fractional frequency signal input of frequency dividing circuit 13 is the fractional frequency signal input (being 11 pin of frequency division module U7) of the first frequency dividing circuit 13-1.The locking control input end of frequency dividing circuit 13 is the locking control input end (being 12 pin of frequency division module U7) of the first frequency dividing circuit 13-1.
See Fig. 2, the course of work of the timing dimming circuit of electronic ballast of high voltage sodium lamp of the present invention is as follows:
The 22V alternating current of 50Hz is sent into 12 and 13 pin of U6 behind step-down filter circuit 11 as signal source, become square wave after the sine wave shaped of alternating current, and carry out frequency division first time (behind the first time frequency division gained rectangle wave period be 3 hours) by 10 pin output and 11 pin of sending into U7, export by 1 pin of U7 behind the frequency division, 11 pin of sending into U8 again carry out the frequency division second time (for the second time behind the frequency division gained rectangle wave period be 6 hours), export square wave by 7 pin and 16 pin of U8 behind the frequency division, and deliver to 6 pin and 5 pin of U6 respectively.The 3 pin output square wave (being timing controling signal) of U6, this rectangle wavelength-division two-way output, one the tunnel delivers to 11 pin of U9, level with 14 pin of control switch circuit U 9, when timing then (promptly gets described alternating current after full 6 hours at step-down filter circuit 11, can be 7 hours or 8 hours among other embodiment), 14 pin and 3 pin (being ground terminal GND) constitute the voltage that a way switch goes to control the power control input end of electronic ballast of high voltage sodium lamp, finally controlled the frequency of oscillation of electronic ballast of high voltage sodium lamp, thereby change the output impedance of electronic ballast of high voltage sodium lamp, reach the purpose of light modulation; U7 is delivered on another road behind diode D11 12 pin (reset terminal) conduct is signal again, make 1 pin of U7 become low electricity frequently, so that the output potential of 7 pin of U8 and 16 pin remains unchanged (i.e. locking), thereby the level of 14 pin of switching circuit U9 is remained unchanged, so that high-pressure sodium lamp keeps lower lighting power.
Application examples 1
See Fig. 1; match with timing dimming circuit of the present invention in the electronic ballast of high voltage sodium lamp that uses; filter circuit 1, first rectification circuit 2, circuit of power factor correction 3, high frequency conversion circuit 4, start-up circuit 5 and current-limiting circuit 9 are in series successively; filter circuit 1 connects the power end of low-voltage dc circuit 6 behind second rectification circuit 10, the dc power output end of low-voltage dc circuit 6 links to each other with circuit of power factor correction 3, protective circuit 7 and the dc power supply terminal of pwm pulse control circuit 8 respectively.The protection detection signal input of start-up circuit 5 protection detection signal output termination protective circuits 7; The first protection control output end of protective circuit 7 and the second protection control output end connect first protection control input end of circuit of power factor correction 3 and the second protection control input end of pwm pulse control circuit 8 respectively.The high frequency conversion control output end of pwm pulse control circuit 8 connects high frequency conversion circuit 4 high frequency conversion control input ends.
The voltage signal of 1 pair of electrical network input of filter circuit carries out filtering, and filtered voltage signal outputs to first rectification circuit 2 and second rectification circuit 10 respectively; The alternating current of 2 pairs of inputs of first rectification circuit carries out rectification, and the signal after the rectification outputs to circuit of power factor correction 3; Second rectification circuit 10 carries out rectification with the alternating current of input; signal after the rectification outputs to low-voltage dc circuit 6; second rectification circuit 10 has independently ground connection; low-voltage dc circuit 6 is changed the signal of input; export a stable low-voltage DC 15V, be the power supply of the active device in circuit of power factor correction 3, pwm pulse control circuit 8 and the protective circuit 7.Circuit of power factor correction 3 is changed input signal, exports a galvanic current and presses 400V, powers to high-pressure sodium lamp by high frequency conversion circuit 4.4 conductings of pwm pulse control circuit 8 output high frequency conversion control signal control high frequency conversion circuit.Be connected with current-limiting circuit 9 between high frequency conversion circuit 4 and the high-pressure sodium lamp.The chance failure that open circuit or short circuit take place 7 pairs of high-pressure sodium lamp HIDs of protective circuit shields.
See Fig. 3, filter circuit 1 comprises piezo-resistance RU, capacitor C 1, C2, C3, C4 and high-frequency inductor L1.Wherein, the contact ground protection of capacitor C 3, C4.
Circuit of power factor correction 3 is that MC3 3262 power factor corrector U1 and peripheral resistance R 1-R12, electrochemical capacitor E1, capacitor C 7, C8, C9, C10, transformer T1, field effect transistor Q1, diode D1 constitute by model.
What high frequency varying circuit 4 adopted is half-bridge inversion circuit, comprises field effect transistor Q4, Q5, transformer T3, capacitor C 24, C25, diode D8, D9, D10, voltage-stabiliser tube Z3, Z4, Z5, resistance R 28, R29, R30, R31, R38, triode Q2, Q3.
Start-up circuit 5 comprises resistance R 34, R35, R36, R40, R41, R42, R43, R44, R45, capacitor C 40, C26 and controllable silicon Q6, bidirectional diode DB3.
Low-voltage dc power supply 6 includes the Switching Power Supply single-chip microcomputer U2 that model is TOP211Y, photoelectrical coupler U3, diode D2, D3, D4, voltage-stabiliser tube Z1, the Z2 that model is 4N25, electrochemical capacitor E3～E5, capacitor C 50, resistance R 50 and transformer T2.Low-voltage dc power supply 6 provides 15V direct voltage for power factor corrector, PWM integrated manipulator and model for the four high guaily unit integrated circuit of LM324.
Pwm pulse control circuit 8 comprises that model is voltage type PWM integrated manipulator U5 and peripheral resistance R 21～R27, capacitor C 19～C20, the diode D7 of SG3525A.
Current-limiting circuit 9 comprises capacitor C 27, transformer T4.The two ends of capacitor C 27 are connected with the drain electrode of field effect transistor Q4 and an end of high-pressure sodium lamp HID respectively.One end on the former limit of transformer T4 is connected with controllable silicon Q6, and the other end on former limit is connected the contact place of resistance R 36 and capacitor C 26.The other end of one termination high-pressure sodium lamp HID of transformer T4 secondary, the drain electrode of another termination field effect transistor Q5 of transformer T4 secondary.
In the process of circuit operation, when high-pressure sodium lamp circuit in running abnormal conditions occur (as output short-circuit, situations such as open circuit), when the electric current of circuit changes, after the 9th foot meridian capacitor C18 of LM324 four high guaily unit integrated circuit U4 measures high level, high-level control signal of 7 pin output of four high guaily unit integrated circuit U4, this high-level control signal is through diode D5, D6, be added to 1 pin of power factor corrector U1 after the resistance R 19, make the direct current pressure of circuit of power factor correction 3 outputs drop to 300V from former 400V, thereby the power output of ballast is also descended thereupon, reach the protection purpose; Meanwhile the current potential of 6 pin of pwm pulse control circuit U5 also raises; the pulse duration of its 11 pin output is narrowed down; the power output of ballast is further descended; the effect that further reaches protection meanwhile; the 14 pin output positive pulse control signal of four high guaily unit integrated circuit U4; this control signal is ended diode D7, causes the 3 pin current potentials of power factor corrector U1 to raise, and the output voltage of circuit of power factor correction 3 further drops to 200V.
When the power control input end of above-mentioned electronic ballast of high voltage sodium lamp was the rising of OUT end level, the operation principle of ballast was the same, thereby has reduced the lighting power of HID lamp.
Claims (6)
1. the timing dimming circuit of an electronic ballast of high voltage sodium lamp is characterized in that: comprise the step-down filter circuit (11) that is used for linking to each other with alternating current, be used for the sine wave shaped of described alternating current be square wave shaping circuit (12), be used for the frequency of described alternating current is carried out the frequency dividing circuit (13) and the switching circuit (14) of frequency division; The reshaping signal input of the output termination shaping circuit (12) of step-down filter circuit (11); The fractional frequency signal input of the reshaping signal output termination frequency dividing circuit (13) of shaping circuit (12), the timing controling signal input of the fractional frequency signal output termination shaping circuit (12) of frequency dividing circuit (13); The locking control input end of the timing controling signal output termination frequency dividing circuit (13) of shaping circuit (12) and the switch control input end of switching circuit (14); Switching circuit (14) has the power control output end of exportable varying level, is used for linking to each other with the power output of control electronic ballast of high voltage sodium lamp with the power control input end of electronic ballast of high voltage sodium lamp.
2. the timing dimming circuit of electronic ballast of high voltage sodium lamp according to claim 1, it is characterized in that: described frequency dividing circuit (13) comprises first frequency dividing circuit (13-1) and second frequency dividing circuit (13-2); The fractional frequency signal input of fractional frequency signal output termination second frequency dividing circuit (13-2) of first frequency dividing circuit (13-1); The fractional frequency signal input of frequency dividing circuit (13) is the fractional frequency signal input of first frequency dividing circuit (13-1); The fractional frequency signal output of frequency dividing circuit (13) is the fractional frequency signal output of second frequency dividing circuit (13-2); The locking control input end of frequency dividing circuit (13) is the locking control input end of first frequency dividing circuit (13-1).
3. the timing dimming circuit of electronic ballast of high voltage sodium lamp according to claim 1 and 2, it is characterized in that: in the step-down filter circuit (11), the dropping resistor R61 that links to each other with alternating current is connected in series the reshaping signal input that connects shaping circuit (12) behind filter inductance L11, the divider resistance R64 successively; Resistance R 63 and filter capacitor C31 are in parallel and constitute filter circuit and be located between filter inductance L11 one end and the ground wire; Capacitor C 32 is located between the filter inductance L11 other end and the ground wire.
4. the timing dimming circuit of electronic ballast of high voltage sodium lamp according to claim 1 and 2 is characterized in that: described shaping circuit (12) is Schmidt's modular circuit.
5. the timing dimming circuit of electronic ballast of high voltage sodium lamp according to claim 1 and 2 is characterized in that: described switching circuit (14) is the analog switch modular circuit.
6. the method for work of the timing dimming circuit of above-mentioned electronic ballast of high voltage sodium lamp comprises the steps:
A, alternating current are sent into the reshaping signal input of shaping circuit (12) behind step-down filter circuit (11) as signal source;
B, shaping circuit (12) are square wave with the sine wave shaped of described alternating current, and export the fractional frequency signal input of this square wave to frequency dividing circuit (13) from its timing controling signal output;
C, frequency dividing circuit (13) carry out frequency division to described square wave, and the described square wave behind the frequency division are delivered to the timing controling signal input of shaping circuit (12);
When D, the square wave after the timing controling signal input of shaping circuit (12) records the described frequency division of complete cycle, the timing controling signal output output high level of shaping circuit (12) is to the locking control input end of frequency dividing circuit (13) and the switch control input end of switching circuit (14), so that the output level of the fractional frequency signal output of frequency dividing circuit (13) is constant, promote the also level of the power control output end of maintained switch circuit (14) simultaneously, be used for reducing and keeping the electronic ballast of high voltage sodium lamp power output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100195870A CN101227785B (en) | 2007-01-18 | 2007-01-18 | Timing dimming circuit of high voltage sodium lamp electronic ballast and operating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100195870A CN101227785B (en) | 2007-01-18 | 2007-01-18 | Timing dimming circuit of high voltage sodium lamp electronic ballast and operating method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101227785A true CN101227785A (en) | 2008-07-23 |
| CN101227785B CN101227785B (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100195870A Expired - Fee Related CN101227785B (en) | 2007-01-18 | 2007-01-18 | Timing dimming circuit of high voltage sodium lamp electronic ballast and operating method thereof |
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| CN (1) | CN101227785B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102239746A (en) * | 2008-12-04 | 2011-11-09 | 奥斯兰姆有限公司 | Method for operating a lamp and electronic ballast |
| CN104105277A (en) * | 2013-04-15 | 2014-10-15 | 梅玉刚 | Double-full-bridge injection phase-locking power synthesis halogen lamp group |
| CN104105312A (en) * | 2013-04-15 | 2014-10-15 | 阮雪芬 | Double-half-bridge injection phase-locking power synthesis high-pressure sodium lamp |
| CN104105296A (en) * | 2013-04-15 | 2014-10-15 | 梅玉刚 | Double-full-bridge injection phase-locking power synthesis electrodeless lamp group |
| CN104105254A (en) * | 2013-04-15 | 2014-10-15 | 阮雪芬 | Double-half-bridge injection phase-locking light-emitting diode LED array lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2515919Y (en) * | 2001-12-05 | 2002-10-09 | 马士科技有限公司 | Adjustable light fluorescent lamp device using mached with silicon controlled PM light modulator |
| AU2003245058A1 (en) * | 2002-11-29 | 2004-06-23 | Dai Sung Moon | Electronic ballast of high power factor for compact fluorescent lamp |
| CN2847788Y (en) * | 2005-12-12 | 2006-12-13 | 史俊生 | High voltage sodium lamp electronic ballast |
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2007
- 2007-01-18 CN CN2007100195870A patent/CN101227785B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239746A (en) * | 2008-12-04 | 2011-11-09 | 奥斯兰姆有限公司 | Method for operating a lamp and electronic ballast |
| US8884544B2 (en) | 2008-12-04 | 2014-11-11 | Osram Gesellschaft Mit Beschraenkter Haftung | Method for operating a lamp and electronic ballast |
| CN102239746B (en) * | 2008-12-04 | 2014-11-19 | 奥斯兰姆有限公司 | Method for operating a lamp and electronic ballast |
| CN104105277A (en) * | 2013-04-15 | 2014-10-15 | 梅玉刚 | Double-full-bridge injection phase-locking power synthesis halogen lamp group |
| CN104105312A (en) * | 2013-04-15 | 2014-10-15 | 阮雪芬 | Double-half-bridge injection phase-locking power synthesis high-pressure sodium lamp |
| CN104105296A (en) * | 2013-04-15 | 2014-10-15 | 梅玉刚 | Double-full-bridge injection phase-locking power synthesis electrodeless lamp group |
| CN104105254A (en) * | 2013-04-15 | 2014-10-15 | 阮雪芬 | Double-half-bridge injection phase-locking light-emitting diode LED array lamp |
| CN104105312B (en) * | 2013-04-15 | 2016-08-31 | 阮雪芬 | Dual-half-bridge injection phase-locking power synthesis high-pressure mercury lamp |
| CN104105254B (en) * | 2013-04-15 | 2016-11-30 | 阮雪芬 | Double half-bridge injection phase-locking LED array lamps |
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