CN101453817B - Apparatus for city illumination - Google Patents
Apparatus for city illumination Download PDFInfo
- Publication number
- CN101453817B CN101453817B CN 200810189277 CN200810189277A CN101453817B CN 101453817 B CN101453817 B CN 101453817B CN 200810189277 CN200810189277 CN 200810189277 CN 200810189277 A CN200810189277 A CN 200810189277A CN 101453817 B CN101453817 B CN 101453817B
- Authority
- CN
- China
- Prior art keywords
- circuit
- chip
- inductance coil
- operational amplifier
- output
- 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.)
- Active
Links
Images
Abstract
The present invention relates to a municipal illuminating device, which comprises an electronic ballast and a ceramic metal halide lamp, wherein a bridge type rectifying and filtering circuit of the electronic ballast is connected with a direct current voltage reducing circuit. A secondary filtering circuit is connected with a discharging circuit, a full-bridge driving circuit and a detecting circuit respectively and the discharging circuit is connected with a high frequency transformer. The high frequency transformer is connected with the ceramic metal halide lamp, and the full-bridge driving circuit is connected with a singlechip, the detecting circuit and the ceramic metal halide lamp respectively. The direct current voltage reducing circuit is connected with the singlechip and the singlechip is connected with a singlechip drive full-bridge circuit. The electronic ballast also comprises a two-way reaction type transformer and a PWM control circuit, wherein the two-way reaction type transformer is connected with the bridge type rectifying and filtering circuit, the secondary filtering circuit and the PWM control circuit respectively; and the PWM control circuit is connected with the direct current voltage reducing circuit, the singleship and the detecting circuit respectively so as to provide the municipal illuminating device having the advantages of low energy consumption, long light source service life and good device stability.
Description
Technical field
The present invention relates to a kind of lighting device, particularly a kind of device that is applied to street illumination.
Background technology
In street illumination now, often adopt Inductive ballast and high-pressure sodium lamp that illumination is provided, when still in street illumination, using Inductive ballast, grid voltage change 10%, power can change about 20%.The discreteness of high-pressure sodium lamp voltage also can cause the variation of power, and this variation possibly surpass 20%, that is to say; Use Inductive ballast, the lamp of a 250W, its actual operating power possibly surpass 320W; Also possibly be lower than 180W, power is too high, can increase energy consumption; Reduce lamp tube service life, even cause danger; Power is low excessively, causes illumination not enough again, and can influence the life-span of lamp, and the power factor of Inductive ballast is low; Line loss is big, and when starting illumination, electric current changes from small to big, during operate as normal simultaneously; Electric current is very big again, and is very high to the cable requirement, is very big to the high-pressure sodium lamp effect on service life.And the life-span of high-pressure sodium lamp is short, and colour temperature is low, and color rendering index is low, dustproof weak effect.These shortcomings, order street illumination device energy-wasting now is high, and the useful life of light source is low.In the automotive lighting field, adopt electric ballast to combine xenon lamp to throw light on, electric ballast can have more performance than Inductive ballast; But existing electric ballast is that lamp is supplied power owing to positive voltage can only be provided; When using ceramic gold-halogen lamp etc. to need the electrical appliance of negative voltage power supply, the negative voltage that needs can not be provided, and xenon lamp its shortcoming is arranged is that the life-span is short; And be point light source light-emitting, the polished bard eye.Therefore in existing street illumination system, need a kind of power consumption lower, the light source longer service life, the stability of equipment is the street illumination device better.
Summary of the invention
To the defective of above-mentioned prior art, it is low to the purpose of this invention is to provide a kind of power consumption, light source long service life, the street illumination device of the good stability of equipment.
Street illumination device of the present invention; Comprise electric ballast and ceramic gold-halogen lamp; Said electric ballast comprises bridge rectifier filter circuit, secondary filtering circuit, discharge circuit, high frequency transformer, full bridge driving circuit, MCU driving full-bridge circuit, single-chip microcomputer, direct-current voltage reducing circuit and testing circuit; Said bridge rectifier filter circuit is connected with said direct-current voltage reducing circuit; Said secondary filtering circuit is connected with said discharge circuit, said full bridge driving circuit, said testing circuit respectively, and said discharge circuit is connected with said high frequency transformer, and said high frequency transformer is connected with ceramic gold-halogen lamp; Said full bridge driving circuit is connected with said single-chip microcomputer, said testing circuit, said ceramic gold-halogen lamp respectively; Said direct-current voltage reducing circuit is connected with said single-chip microcomputer, and said single-chip microcomputer is connected with said MCU driving full-bridge circuit, and said electric ballast also comprises: two-way inverse-excitation type transformer and pwm control circuit; Said two-way inverse-excitation type transformer is connected with said bridge rectifier filter circuit, said secondary filtering circuit, said pwm control circuit respectively; Said pwm control circuit is connected with said direct-current voltage reducing circuit, single-chip microcomputer, testing circuit respectively, and said two-way inverse-excitation type transformer is used for the positive and negative two kinds of Rectified alternating currents of Rectified alternating current conversion with said bridge rectifier filter circuit output.
Street illumination device of the present invention; Wherein said two-way inverse-excitation type transformer comprises former inductance coil L3, the first secondary inductance coil L4, second secondary inductance coil L5 and the FET Q3; The end of said former inductance coil L3 is connected with the output of said bridge rectifier filter circuit; The other end of said former inductance coil L3 is connected with the drain electrode of said FET Q3; The end of the said first secondary inductance coil L4 is connected with the said discharge circuit of said testing circuit, said full bridge driving circuit respectively, the other end ground connection of the said first secondary inductance coil L4, and the end of the said second secondary inductance coil L5 is connected with said secondary filtering circuit; The other end of the said second secondary inductance coil L5 is connected and ground connection with said amplifying circuit; The grid of said FET Q3 is connected with the output of said pwm control circuit through said amplifying circuit, and the drain electrode of said FET Q3 is connected with the output of said bridge rectifier filter circuit, and the source electrode of said FET Q3 is connected with said pwm control circuit.
Street illumination device of the present invention; Turn ratio between the wherein said former inductance coil L3 and the said first secondary inductance coil L4 and the said second secondary inductance coil L5 is 1: 1; The said first secondary inductance coil L4 is output as positive Rectified alternating current, and the said second secondary inductance coil L5 is output as negative Rectified alternating current Vss.
Street illumination device of the present invention, the single-chip microcomputer of wherein said electric ballast is made up of MC68HC908QY4 chip and peripheral circuit thereof.
Street illumination device of the present invention; Wherein said direct-current voltage reducing circuit comprises first reduction voltage circuit and second reduction voltage circuit that is connected with said first reduction voltage circuit; Said first reduction voltage circuit is made up of TNY254GN chip U1 and peripheral circuit thereof, and said second reduction voltage circuit is made up of 78L05 chip U4 and peripheral circuit thereof.
Street illumination device of the present invention; Wherein said pwm control circuit is made up of comparison circuit, integrating circuit, UC3843 chip and peripheral control circuit thereof, and said UC3843 chip and peripheral control circuit thereof are connected with said integrating circuit with said comparison circuit respectively.
Street illumination device of the present invention; Wherein said comparison circuit is made up of triode Q8, operational amplifier A 1 and peripheral circuit thereof; The in-phase input end of said operational amplifier A 1 meets voltage VDD and voltage Vss through resistance; The reverse inter-input-ing ending grounding of said operational amplifier A 1; The output of said operational amplifier A 1 is connected with 1 pin of said UC3843 chip and the emitter-base bandgap grading of said triode Q8; The base stage of said triode Q8 is connected with 14 pins of said MC68HC908QY4 chip, and said integrating circuit is made up of FET Q9, operational amplifier A 2 and A3 and peripheral circuit thereof, the in-phase input end ground connection of said operational amplifier A 2; The inverting input of said operational amplifier A 2 is connected with source electrode and the output of drain electrode, said testing circuit and the output of said operational amplifier A 2 of said FET Q9; The output of said operational amplifier A 2 is connected with 11 pins of said MC68HC908QY4 chip and the in-phase input end of said operational amplifier A 3, and the inverting input of said operational amplifier A 3 is connected with 13 pins of said MC68HC908QY4 chip, and the output of said operational amplifier A 3 is connected with 2 pins of said UC3843 chip; 6 pins of said UC3843 chip are connected with the source electrode of said FET Q3, and 4 pins of said UC3843 chip are connected with the source electrode of said FET Q3.
Street illumination device of the present invention, wherein said secondary filtering circuit is made up of diode, electric capacity and resistance string parallel connection, and said discharge circuit is made up of RC charging circuit and discharge tube.
Street illumination device of the present invention; Wherein said ceramic gold-halogen lamp comprises socket, base of ceramic, shell, two electrodes and arc-tube; Said socket is fixed on the base of ceramic, and said base of ceramic links to each other with shell, and socket links to each other with two electrodes through respective wire.
Street illumination device of the present invention, wherein said electric ballast and ceramic gold-halogen lamp are with optical energy power device or wind electricity generating system power supply or mains-supplied.
The mode that street illumination device of the present invention adopts electric ballast and ceramic gold-halogen lamp to combine is thrown light on; Wherein electric ballast adopts single-chip microcomputer and pwm control circuit accurately to control the startup of ceramic gold-halogen lamp; Thereby the power factor and the stability of a system of ceramic gold-halogen lamp have been improved; Power consumption is reduced, and load response speed is fast, harmonic components reduces.Owing to having, electric ballast can produce positive and negative two kinds of galvanic inverse-excitation type transformers again; Make sufficiently high voltage make ceramic gold-halogen lamp start; Single-chip microcomputer can drive full-bridge circuit through control single chip computer; The MCU driving full-bridge circuit is turn-offed with the conducting of the FREQUENCY CONTROL full bridge driving circuit of about 100Hz, burn away, therefore prolonged the useful life of ceramic gold-halogen lamp thereby make the negative direct current of the generation of inverse-excitation type transformer drive ceramic gold-halogen lamp through full bridge driving circuit.
Description of drawings
Fig. 1 is the structured flowchart of street illumination device of the present invention;
Fig. 2 is the structured flowchart of street illumination device electric ballast of the present invention;
Fig. 3 is the partial electrical schematic diagram of street illumination device electric ballast of the present invention;
Fig. 4 is the electrical schematic diagram of the pwm control circuit of street illumination device electric ballast of the present invention;
Fig. 5 is the electrical schematic diagram of the single-chip microcomputer of street illumination device electric ballast of the present invention;
Fig. 6 is the electrical schematic diagram of the second source circuit of street illumination device electric ballast of the present invention;
Fig. 7 is the electrical schematic diagram of the MCU driving full-bridge circuit of street illumination device electric ballast of the present invention;
Fig. 8 is the structure chart of street illumination mounting ceramics Metal halogen lamp of the present invention.
Embodiment
Below in conjunction with accompanying drawing execution mode of the present invention is elaborated.
Referring to Fig. 1; The embodiment of street illumination device of the present invention comprises: electric ballast 101 and ceramic gold-halogen lamp 102; Said electric ballast 101 connects said ceramic gold-halogen lamp 102, for said ceramic gold-halogen lamp 102 provides enough its voltage of lighting and makes the negative voltage that ceramic gold-halogen lamp 102 can operate as normal.
Referring to Fig. 2; The electric ballast of the embodiment of street illumination device of the present invention comprises: comprise bridge rectifier filter circuit 201, secondary filtering circuit 203, discharge circuit 204, high frequency transformer 205, full bridge driving circuit 206, MCU driving full-bridge circuit 207, single-chip microcomputer 208, direct-current voltage reducing circuit 209 and testing circuit 211; Bridge rectifier filter circuit 201 is connected with direct-current voltage reducing circuit 209; Secondary filtering circuit 203 is connected with discharge circuit 204, full bridge driving circuit 206, testing circuit 211 respectively; Discharge circuit 204 is connected with high frequency transformer 205; High frequency transformer 205 is connected with ceramic gold-halogen lamp, and full bridge driving circuit 206 is connected with single-chip microcomputer 207, testing circuit 211, ceramic gold-halogen lamp respectively, and direct-current voltage reducing circuit 209 is connected with single-chip microcomputer 208; Single-chip microcomputer 208 is connected with MCU driving full-bridge circuit 207, also comprises:
Two-way inverse-excitation type transformer 202 and pwm control circuit 210; Two-way inverse-excitation type transformer 202 is connected with bridge rectifier filter circuit 201, secondary filtering circuit 203, pwm control circuit 210 respectively, and pwm control circuit 210 is connected with direct-current voltage reducing circuit 209, single-chip microcomputer 208, testing circuit 211 respectively.Wherein, two-way inverse-excitation type transformer 201 is used for the positive and negative two kinds of Rectified alternating currents of Rectified alternating current conversion with bridge rectifier filter circuit 201 outputs.
Referring to Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the bridge rectifier filter circuit 301 of the electric ballast of the embodiment of street illumination device of the present invention is used for alternating current is transformed into Rectified alternating current; Two-way inverse-excitation type transformer 303 is used for the Rectified alternating current of bridge rectifier filter circuit 301 outputs is become the both positive and negative Rectified alternating current; Secondary filtering circuit 304a and 304b are made up of diode, electric capacity and resistance string parallel connection, and the positive and negative two kinds of Rectified alternating current correspondent transforms that are respectively applied for two-way inverse-excitation type transformer 303 outputs become positive and negative two kinds of stable DC; Discharge circuit 305 is made up of RC charging circuit and discharge tube; Be used for positive and negative two kinds of stable DC electricity of secondary filtering circuit 304a and 304b output are charged; And be full of the back to high voltage converter 306 discharges, make high voltage converter 306 output high tension electric ignition ceramic gold-halogen lamps 307; Testing circuit 309 is made up of diode, electric capacity and resistance string parallel connection, is used to detect the output voltage of secondary filtering circuit 304a and 304b, and detected output voltage is inputed to single-chip microcomputer through pwm control circuit; Pwm control circuit is used for exporting corresponding PWM control impuls according to the control of single-chip microcomputer; Single-chip microcomputer is made up of MC68HC908QY4 chip U3 and peripheral circuit thereof; Be used to control of the startup of the PWM control impuls of pwm control circuit output with control ceramic gold-halogen lamp 307; And after the startup of ceramic gold-halogen lamp 307, through the operation of MCU driving full-bridge circuit control ceramic gold-halogen lamp 307; The MCU driving full-bridge circuit is used for after the startup of ceramic gold-halogen lamp 307, drives full bridge driving circuit 308 according to the control of single-chip microcomputer; Full bridge driving circuit 308 is used under the control of MCU driving full-bridge circuit, and the negative Rectified alternating current that produces with two-way inverse-excitation type transformer 303 drives ceramic gold-halogen lamp 307; Direct-current voltage reducing circuit comprises first reduction voltage circuit 302 and second reduction voltage circuit.Wherein, First reduction voltage circuit 302 is made up of TNY254GN chip U1 and peripheral circuit thereof; Be used for that the Rectified alternating current that bridge rectifier filter circuit 301 is exported is transformed into 15V stable DC electricity Vcc and offer pwm control circuit, second reduction voltage circuit and MCU driving full-bridge circuit; Second reduction voltage circuit is made up of 78L05 chip U4 and peripheral circuit thereof, is used for the 15V stable DC electricity Vcc of first reduction voltage circuit, 302 outputs is transformed into 5V stable DC electricity VDD.
Referring to Fig. 3 and Fig. 4; The inverse-excitation type transformer of the electric ballast of the embodiment of street illumination device of the present invention comprises former inductance coil L3, the first secondary inductance coil L4, second secondary inductance coil L5 and the FET Q3; The end of former inductance coil L3 is connected with the output of bridge rectifier filter circuit 301; The other end of former inductance coil L3 is connected with the drain electrode of FET Q3, and the end of the first secondary inductance coil L4 is connected with testing circuit 309, discharge circuit 305 and full bridge driving circuit 308 respectively, the other end ground connection of the first secondary inductance coil L4; The end of the second secondary inductance coil L5 is connected with secondary filtering circuit 304; The other end of the second secondary inductance coil L5 is connected and ground connection with amplifying circuit 310, and the grid of FET Q3 is connected with amplifying circuit 310, and the drain electrode of FET Q3 is connected with the output of bridge rectifier filter circuit 301; The source electrode of FET Q3 is connected with pwm control circuit; Turn ratio between the former inductance coil L3 and the first secondary inductance coil L4 and the second secondary inductance coil L5 is 1: 1, and the first secondary inductance coil L4 is output as positive Rectified alternating current, and the second secondary inductance coil L5 is output as negative Rectified alternating current Vss.
Referring to Fig. 3, Fig. 4 and Fig. 5; The pwm control circuit of the electric ballast of the embodiment of street illumination device of the present invention is by being made up of comparison circuit 401, integrating circuit 403, UC3843 chip U2 and peripheral control circuit 402 thereof, and UC3843 chip U2 and peripheral control circuit 402 thereof are connected with integrating circuit 403 with comparison circuit 401 respectively.
Wherein, Comparison circuit 401 is made up of triode Q8, operational amplifier A 1 and peripheral circuit thereof; The in-phase input end of operational amplifier A 1 meets voltage VDD and voltage Vss through resistance; The reverse inter-input-ing ending grounding of operational amplifier A 1, the output of operational amplifier A 1 is connected with 1 pin of UC3843 chip U2 and the emitter-base bandgap grading of triode Q8, and the base stage of triode Q8 is connected with 14 pins of MC68HC908QY4 chip U3.
Wherein, Integrating circuit 403 is made up of FET Q9, operational amplifier A 2 and A3 and peripheral circuit thereof; The in-phase input end ground connection of operational amplifier A 2; The inverting input of operational amplifier A 2 is connected with source electrode and the output of drain electrode, the testing circuit 309 and output of operational amplifier A 2 of FET Q9; The output of operational amplifier A 2 is connected with 11 pins of MC68HC908QY4 chip U3 and the in-phase input end of operational amplifier A 3, and the inverting input of operational amplifier A 3 is connected with 13 pins of stating MC68HC908QY4 chip U3, and the output of operational amplifier A 3 is connected with 2 pins of UC3843 chip U2; 6 pins of UC3843 chip U2 are connected with the source electrode of FET Q3, and 4 pins of UC3843 chip U2 are connected with the source electrode of FET Q3.
Referring to Fig. 3, Fig. 5 and Fig. 7; The full bridge driving circuit of the electric ballast of street illumination device embodiment of the present invention is by FET Q4, Q5, Q6, Q7; Inductance coil L6, L7, L8, L9 and capacitor C 9, C10, C11, C12 form; FET Q4, Q6 source electrode separately is connected with the output of the first secondary inductance coil L4 of two-way inverse-excitation type transformer 403; FET Q5, Q7 drain electrode separately is connected with testing circuit; FET Q4 drain electrode is connected the back and is connected with the MCU driving full-bridge circuit through pin platelet 8 with the source electrode of FET Q5; FET Q6 drain electrode is connected the back and is connected with the MCU driving full-bridge circuit through pin platelet 14 with the source electrode of FET Q7, FET Q4, Q5, Q6, Q7 grid separately passes through pin platelet 14, pin platelet 11, pin platelet 15, pin platelet 12 successively and is connected with the MCU driving full-bridge circuit.
Referring to Fig. 8, ceramic gold-halogen lamp comprises socket 801, base of ceramic 802; Shell 803; Two electrode 804a, 804b and arc-tubes 805, said socket 801 is fixed on the base of ceramic 802, and said base of ceramic 802 links to each other with shell 803; Socket 801 links to each other with 804b with two electrode 804a through respective wire, makes after powering on that two electrode 804a and 804b are that arc-tube 805 is supplied power.
Because the outside ceramic structure that adopts of the light source of ceramic gold-halogen lamp, variation of temperature is little for the pottery influence, and has dustproof effect, makes the better stable of ceramic gold-halogen lamp; And the light efficiency of ceramic gold-halogen lamp can reach 100 lumens/watt, and colour temperature is near 6000K, and color rendering index is higher than 90; And ceramic gold-halogen lamp is being lighted luminous that the back only needs that stabilization time of 3 minutes can be stable.Therefore, the present invention uses ceramic gold-halogen lamp as the light source of street illumination system the low advantage of its power consumption to be arranged, and makes negative voltage be the power supply of ceramic gold-halogen lamp operate as normal, and light source is prolonged useful life.
Ceramic gold-halogen lamp and electric ballast are installed in the system of street illumination; Make ceramic gold-halogen lamp after the power supply of civil power; Its alternating current is the output ripple direct current after bridge rectifier filter circuit is handled, and first reduction voltage circuit is transformed into 15V stable DC electricity Vcc to pwm control circuit, second reduction voltage circuit and single-chip microcomputer power supply with the Rectified alternating current of bridge rectifier filter circuit output; Second reduction voltage circuit is transformed into 5V with the electric Vcc of the 15V stable DC of first reduction voltage circuit output and stablizes 5V direct current VDD to pwm control circuit and single-chip microcomputer power supply; Two-way inverse-excitation type transformer will be transformed into positive and negative two kinds of Rectified alternating currents from the Rectified alternating current of bridge rectifier filter circuit; These positive and negative two kinds of Rectified alternating currents are after the secondary rectification; Be added in the two ends of the withstand voltage electric capacity very of discharge circuit; After being charged to sufficiently high voltage, the discharge tube discharge makes the high frequency transformer transformation go out enough voltage; Make the electrode of ceramic gold-halogen lamp puncture the gas in the lamp and light; Testing circuit detects the output of full bridge driving circuit, and detection signal is passed through the operational amplifier A 2 that pin platelet 5 is imported pwm control circuits, and then through pin U3/12 detection signal is input to single-chip microcomputer by the output of operational amplifier A 2; Single-chip microcomputer compares the detection signal of input and the threshold value that is provided with in advance; If detection signal is too faint, single-chip microcomputer will make FET Q9 conducting through the inverting input of pin U3/11 output high level to operational amplifier A 2 so; Increase the multiplication factor of operational amplifier A 2; Corresponding single-chip microcomputer will be through the width of pin U3/13 increase to the pulse of the inverting input output of the operational amplifier A 3 of pwm control circuit, and corresponding pwm control circuit will become greatly through the duty ratio of the PWM control impuls of the 6 pins output of UC3843 chip, and duty ratio becomes big PWM control impuls is added in the FET Q3 of two-way inverse-excitation type transformer through amplifying circuit grid then.
Yet; The duty ratio of PWM control impuls becomes the positive voltage that will cause two-way inverse-excitation type transformer to be exported greatly and uprises; It is too negative that the negative voltage of output will become, too high for preventing output voltage, and this just need suppress with the operational amplifier A 1 of the comparison circuit of pwm control circuit (specifically to realize through the voltage of measuring 5V direct current VDD and negative voltage Vss centre; The output signal of operational amplifier A 1 will make the PWM control impuls duty ratio of pwm control circuit output diminish); If detection signal is still too high, single-chip microcomputer just reduces the pulse duration to operational amplifier A 3 outputs through pin U3/13 so, and the duty ratio of PWM control impuls is reduced; If if detection signal is still very high; Single-chip microcomputer will be exported high level with triode Q8 conducting to the comparison circuit of pwm control circuit through pin U3/14 so, the UC3843 chip of the generation PWM control impuls of pwm control circuit is turn-offed, thereby protected ceramic gold-halogen lamp.
When detected detection signal is suitable (with the said threshold value coupling that is provided with in advance); Just think that ceramic gold-halogen lamp normally starts; Single-chip microcomputer will drive full-bridge circuit through pin U3/13 control single chip computer; Make the MCU driving full-bridge circuit turn-off (even the FET Q5 of full bridge driving circuit, Q6 and FET Q4, Q7 alternate conduction), the negative direct current of the generation of two-way inverse-excitation type transformer is burnt away through full bridge driving circuit driving ceramic gold-halogen lamp with the conducting of the FREQUENCY CONTROL full bridge driving circuit of about 100Hz.Simultaneously; The UC3843 chip of pwm control circuit also detects FET Q3 when the magnitude of voltage of the 3 pins entering of UC3843 chip surpasses the reference voltage of UC3843 chip internal through pin platelet 4; The UC3843 chip closes output automatically, damages to prevent the ceramic gold-halogen lamp overvoltage.
The mode that street illumination device of the present invention adopts electric ballast and ceramic gold-halogen lamp to combine is used for street illumination; Wherein electric ballast adopts single-chip microcomputer and pwm control circuit accurately to control the startup of ceramic gold-halogen lamp; Thereby the power factor and the stability of a system of ceramic gold-halogen lamp have been improved; Power consumption is reduced, and load response speed is fast, harmonic components reduces.Because having, the electric ballast of the embodiment of the invention can produce positive and negative two kinds of galvanic inverse-excitation type transformers again; Make sufficiently high voltage make ceramic gold-halogen lamp start; Single-chip microcomputer can drive full-bridge circuit through control single chip computer; The MCU driving full-bridge circuit is turn-offed with the conducting of the FREQUENCY CONTROL full bridge driving circuit of about 100Hz; Thereby the negative direct current that makes the generation of inverse-excitation type transformer can drive ceramic gold-halogen lamp through full bridge driving circuit and burn away, and has therefore prolonged the useful life of ceramic gold-halogen lamp.
The mode of the electric ballast of the embodiment of the invention and ceramic gold-halogen lamp combination simultaneously can also be applied to green illumination, promptly relies on device of solar generating or wind electricity generating system to supply power.Because ceramic gold-halogen lamp has the high advantage of light efficiency, make the ceramic gold-halogen lamp of low wattage just can satisfy lighting requirement, the light source wattage reduces; Requirement to solar panel and storage battery reduces; Make whole solar lighting cost reduce, for green illumination, energy-saving and cost-reducing popularization has individual profound significance.
Above embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection range of claims of the present invention.
Claims (9)
1. street illumination device; Comprise electric ballast and ceramic gold-halogen lamp; It is characterized in that; Said electric ballast comprises bridge rectifier filter circuit, secondary filtering circuit, discharge circuit, high frequency transformer, full bridge driving circuit, MCU driving full-bridge circuit, single-chip microcomputer, direct-current voltage reducing circuit and testing circuit; Said bridge rectifier filter circuit is connected with said direct-current voltage reducing circuit; Said secondary filtering circuit is connected with said discharge circuit, said full bridge driving circuit, said testing circuit respectively; Said discharge circuit is connected with said high frequency transformer, and said high frequency transformer is connected with ceramic gold-halogen lamp, and said full bridge driving circuit is connected with said MCU driving full-bridge circuit, said testing circuit, said ceramic gold-halogen lamp respectively; Said direct-current voltage reducing circuit is connected with said single-chip microcomputer; Said single-chip microcomputer is connected with said MCU driving full-bridge circuit, and said electric ballast also comprises: two-way inverse-excitation type transformer and pwm control circuit, said two-way inverse-excitation type transformer are connected with said bridge rectifier filter circuit, said secondary filtering circuit, said pwm control circuit respectively; Said pwm control circuit is connected with said direct-current voltage reducing circuit, single-chip microcomputer, testing circuit respectively; Said two-way inverse-excitation type transformer is used for the positive and negative two kinds of Rectified alternating currents of Rectified alternating current conversion with said bridge rectifier filter circuit output, and said two-way inverse-excitation type transformer comprises former inductance coil L3, the first secondary inductance coil L4, second secondary inductance coil L5 and the FET Q3; The end of said former inductance coil L3 is connected with the output of said bridge rectifier filter circuit; The other end of said former inductance coil L3 is connected with the drain electrode of said FET Q3, and the end of the said first secondary inductance coil L4 is connected with said testing circuit, said discharge circuit, said full bridge driving circuit respectively, and the other end of the said first secondary inductance coil L4 connects secondary filtering circuit 304b; The end of the said second secondary inductance coil L5 is connected with secondary filtering circuit 304a; Said secondary filtering circuit comprises said secondary filtering circuit 304b and said secondary filtering circuit 304a, and the other end of the said second secondary inductance coil L5 is connected and ground connection with amplifying circuit, and the grid of said FET Q3 is connected with the output of said pwm control circuit through said amplifying circuit; The drain electrode of said FET Q3 is connected with the output of said bridge rectifier filter circuit, and the source electrode of said FET Q3 is connected with said pwm control circuit.
2. street illumination device according to claim 1; It is characterized in that; Turn ratio between the said former inductance coil L3 and the said first secondary inductance coil L4 and the said second secondary inductance coil L5 is 1: 1; The said first secondary inductance coil L4 is output as positive Rectified alternating current, and the said second secondary inductance coil L5 is output as negative Rectified alternating current Vss.
3. street illumination device according to claim 2 is characterized in that the single-chip microcomputer of said electric ballast is made up of MC68HC908QY4 chip and peripheral circuit thereof.
4. street illumination device according to claim 3; It is characterized in that; Said direct-current voltage reducing circuit comprises first reduction voltage circuit and second reduction voltage circuit that is connected with said first reduction voltage circuit; Said first reduction voltage circuit is made up of TNY254GN chip U1 and peripheral circuit thereof, and said second reduction voltage circuit is made up of 78L05 chip U4 and peripheral circuit thereof.
5. street illumination device according to claim 4; It is characterized in that; Said pwm control circuit is made up of comparison circuit, integrating circuit, UC3843 chip and peripheral control circuit thereof, and said UC3843 chip and peripheral control circuit thereof are connected with said integrating circuit with said comparison circuit respectively.
6. street illumination device according to claim 5; It is characterized in that; Said comparison circuit is made up of triode Q8, operational amplifier A 1 and peripheral circuit thereof; The in-phase input end of said operational amplifier A 1 meets voltage VDD and voltage Vss through resistance; The reverse inter-input-ing ending grounding of said operational amplifier A 1; The output of said operational amplifier A 1 is connected with 1 pin of said UC3843 chip and the emitter-base bandgap grading of said triode Q8; The base stage of said triode Q8 is connected with 14 pins of said MC68HC908QY4 chip, and said integrating circuit is made up of FET Q9, operational amplifier A 2 and A3 and peripheral circuit thereof, the in-phase input end ground connection of said operational amplifier A 2; The inverting input of said operational amplifier A 2 is connected with source electrode and the output of drain electrode, said testing circuit and the output of said operational amplifier A 2 of said FET Q9; The output of said operational amplifier A 2 is connected with 12 pins of said MC68HC908QY4 chip and the in-phase input end of said operational amplifier A 3, and the inverting input of said operational amplifier A 3 is connected with 13 pins of said MC68HC908QY4 chip, and the output of said operational amplifier A 3 is connected with 2 pins of said UC3843 chip; 6 pins of said UC3843 chip are connected with the source electrode of said FET Q3, and 4 pins of said UC3843 chip are connected with the source electrode of said FET Q3.
7. street illumination device according to claim 6 is characterized in that, said secondary filtering circuit is made up of diode, electric capacity and resistance string parallel connection, and said discharge circuit is made up of RC charging circuit and discharge tube.
8. street illumination device according to claim 7; It is characterized in that; Said ceramic gold-halogen lamp comprises socket (801), base of ceramic (802), shell (803), two electrodes (804a, 804b) and arc-tube (805); Said socket (801) is fixed on the base of ceramic (802), and said base of ceramic (802) links to each other with shell (803), and socket (801) links to each other with two electrodes (804a, 804b) through respective wire.
9. street illumination device according to claim 8 is characterized in that, said electric ballast and ceramic gold-halogen lamp are with optical energy power device or wind electricity generating system power supply or mains-supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810189277 CN101453817B (en) | 2008-12-30 | 2008-12-30 | Apparatus for city illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810189277 CN101453817B (en) | 2008-12-30 | 2008-12-30 | Apparatus for city illumination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101453817A CN101453817A (en) | 2009-06-10 |
| CN101453817B true CN101453817B (en) | 2012-12-05 |
Family
ID=40735764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810189277 Active CN101453817B (en) | 2008-12-30 | 2008-12-30 | Apparatus for city illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101453817B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661418A (en) * | 2015-02-14 | 2015-05-27 | 合肥誉联信息科技有限公司 | Electronic ballast for ceramic metal halide lamp |
| CN116990714B (en) * | 2023-09-26 | 2023-12-08 | 深圳莱福德科技股份有限公司 | Lighting lamp operation data detection circuit and detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2817288Y (en) * | 2005-08-15 | 2006-09-13 | 袁荣荣 | High-strength gas discharge lamp electronic ballst |
| CN2847788Y (en) * | 2005-12-12 | 2006-12-13 | 史俊生 | High voltage sodium lamp electronic ballast |
| CN2907171Y (en) * | 2006-05-10 | 2007-05-30 | 周春香 | Low-frequency sine wave electronic ballast for HID lamp |
| CN201153343Y (en) * | 2007-08-22 | 2008-11-19 | 北京市中盛飞朗科技发展有限公司 | HID electronic ballast constant power control system controlled by microcontroller |
-
2008
- 2008-12-30 CN CN 200810189277 patent/CN101453817B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2817288Y (en) * | 2005-08-15 | 2006-09-13 | 袁荣荣 | High-strength gas discharge lamp electronic ballst |
| CN2847788Y (en) * | 2005-12-12 | 2006-12-13 | 史俊生 | High voltage sodium lamp electronic ballast |
| CN2907171Y (en) * | 2006-05-10 | 2007-05-30 | 周春香 | Low-frequency sine wave electronic ballast for HID lamp |
| CN201153343Y (en) * | 2007-08-22 | 2008-11-19 | 北京市中盛飞朗科技发展有限公司 | HID electronic ballast constant power control system controlled by microcontroller |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-100476A 2003.04.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101453817A (en) | 2009-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101827488B (en) | Fluorescent lamp electronic ballast and lighting device | |
| CN100521859C (en) | Variable frequency preheating restartable fluorescent lamp electronic relay with abnormal protection | |
| CN102711310A (en) | Light-emitting diode (LED) drive circuit and lamp | |
| CN101420811B (en) | Vehicular HID lamp ballast for implementing soft switch PWM technique based on digital control | |
| CN201113502Y (en) | Solar energy power control unit | |
| CN102611316A (en) | Flyback converter controlled constant-current output circuit and method | |
| CN204578876U (en) | A kind of power driving circuit of AC/DC | |
| CN103037557A (en) | Illumination driving device | |
| CN101453817B (en) | Apparatus for city illumination | |
| CN101365272A (en) | Combined sleeve type sunlight lamp | |
| CN103517524A (en) | Led emergency controller | |
| CN103118473B (en) | HID (high intensity discharging lamp) electronic ballast | |
| CN202565166U (en) | Fly-back converter control constant current output circuit | |
| CN103313461B (en) | Replaceable electronic ballast lamp tube | |
| CN104039055A (en) | Dual-purpose intelligent control circuit for lamp | |
| CN201709008U (en) | Digital ballast of gas discharge lamp | |
| CN203934085U (en) | A kind of HID lamp electronic ballast emergency set | |
| CN101448354B (en) | Electronic ballast of HID lamps | |
| CN101877929A (en) | Isolation-type low-power high-strength digital ballast for gas discharge lamp | |
| CN201248159Y (en) | Combined sleeve type sunlight lamp | |
| CN201355880Y (en) | PWM pulse control circuit of HID lamp electronic ballast | |
| CN101640966A (en) | Power supply circuit of fluorescent lamp | |
| CN105072783B (en) | A kind of LED power | |
| CN201601859U (en) | Non-isolated LED driving circuit | |
| CN217693110U (en) | Elevator illumination LED panel light |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 264006 No. 10, Yantai Development Zone, Shandong, Zhujianglu Road Patentee after: SHANDONG HUADING WEIYE ENERGY TECHNOLOGY CO., LTD. Address before: 264006 No. 10, Yantai Development Zone, Shandong, Zhujianglu Road Patentee before: Shandong Huading Weiye Energy Technology Co., Ltd. |