CN1805645A - Electronic ballast applicable to 400V/600W high voltage sodium lamps for agricultural use - Google Patents
Electronic ballast applicable to 400V/600W high voltage sodium lamps for agricultural use Download PDFInfo
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- CN1805645A CN1805645A CN 200510010582 CN200510010582A CN1805645A CN 1805645 A CN1805645 A CN 1805645A CN 200510010582 CN200510010582 CN 200510010582 CN 200510010582 A CN200510010582 A CN 200510010582A CN 1805645 A CN1805645 A CN 1805645A
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Abstract
The invention relates to an electric amperite of 400V/600W farm high-voltage sodium lamp, which provides an electric sodium lamp of high intensity gas discharge lamp, while the electric sodium lamp can not be used in 400V/600W farm high-voltage sodium lamp by present technique. Wherein, the 400V alternating current power source is connected to two power inputs of inventive EMI filter (1); the voltage output of load match network (5) is connected to the voltage input of 400V/600W farm sodium lamp; the initial protective signal output of single chip (IC2) via the initial impulse current limit circuit (8) is connected to another output of full-bridge rectification circuit (2); the rectification signal output of (5) via the rectification detection circuit (7) is connected to the rectification detected signal input of (IC2). The inventive electric amperite uses new PFC which is specially used in 400V/600W farm lighting high-voltage sodium lamp with high power factor (near 1).
Description
Technical field
The present invention relates to a kind of electronic ballast of high intensity gas discharge lamp.
Background technology
High-intensity gas discharge lamp occupies an important position in current illuminator.High-intensity gas discharge lamp has the light efficiency height, the life-span is long and the wide plurality of advantages such as (from several watts to up to a hundred kilowatts) of power bracket, become the third generation electric light source after incandescent lamp, fluorescent lamp, be widely used in the indoor and outdoor lighting environment such as square, harbour, workshop and road.Therefore light in the process at high-intensity gas discharge lamp, produced light when electron beam passes gaseous mediums, but because high-intensity gas discharge lamp has negative resistance character, need electric ballast and cooperate with it and suitable deboost, the measure of electric current be provided.The common electric ballast that is used for high-pressure sodium lamp adopts two-layer configuration, i.e. power factor correction (PFC) circuit and inverter circuit, and the busbar voltage that the PFC level provides is 400V, inverse cascade adopts half-bridge structure, is applicable to that the lamp terminal voltage is not very high high-pressure sodium lamp.The new 400V/600W gardening illumination high-pressure sodium lamp of releasing (being also referred to as agricultural lamp) of PHILIPS Co., its lamp terminal voltage is higher during stable state, reaches about 160V, at this moment adopts the inverse cascade of the PFC of 400V busbar voltage and half-bridge structure just improper.
Summary of the invention
The objective of the invention is in order to solve the problem that existing electric ballast can't be applied to the agricultural high-pressure sodium lamp of 400V/600W, thereby the invention provides the electric ballast of the agricultural high-pressure sodium lamp of a kind of 400V/600W of being applicable to.Electric ballast of the present invention comprises electromagnetic interface filter, full bridge rectifier, circuit of power factor correction and high frequency half bridge inverter circuit, two outputs of electromagnetic interface filter connect two inputs of full bridge rectifier respectively, an output head grounding of full bridge rectifier, another output of full bridge rectifier connects the dc supply input of circuit of power factor correction, and the output of circuit of power factor correction connects the dc supply input of high frequency half bridge inverter circuit; It also comprises the startup circuit for limiting surge current; single-chip microcomputer; Drive and Control Circuit; rectifying effect testing circuit and load matching network; two outputs of 400V AC power connect two power inputs of electromagnetic interface filter respectively; the output of high frequency half bridge inverter circuit connects the input of load matching network; the voltage output end of load matching network connects the voltage input end of the agricultural sodium vapor lamp of 400V/600W; the control signal output ends of single-chip microcomputer connects the input of Drive and Control Circuit; the output of Drive and Control Circuit connects the signal input end of high frequency half bridge inverter circuit; the startup guard signal output of single-chip microcomputer connects the input that starts circuit for limiting surge current; the output that starts circuit for limiting surge current connects another output of full bridge rectifier; the rectifying effect signal output part of load matching network connects the input of rectifying effect testing circuit, and the output of rectifying effect testing circuit connects the rectifying effect detection signal input of single-chip microcomputer.
The service object of electric ballast of the present invention is the tubular super high-pressure sodium lamp of NAV 400V/600W SUPER of PHILIPS Co. or the 400V/600W high-pressure sodium lamp of Nanjing longitude and latitude company, they all are to design specially for the gardening illumination, for plant provides annual better growing conditions.Above-mentioned super sodium vapor lamp is different from other high-pressure sodium lamp parts: the power supply supply power voltage that (1) electric ballast requires is 400V, and domestic common primary voltage is 220V; (2) light tube electric voltage during the sodium vapor lamp full power is 160V, and the lamp terminal voltage of common high-pressure sodium lamp is generally all less than this value (about 100V).So at These characteristics, the invention provides a kind of electric ballast that is different from common structure and characteristic, it adopts the interchange input of 400V.
The phase voltage of civil power is that 220V, line voltage are 380V at home, so two power inputs of electromagnetic interface filter can be connected two live wires of mains supply respectively, therefore electric ballast of the present invention is applicable to the three-phase three-wire system system, can also reduce the neutral line current in the three-phase four-wire system, avoid the zero line heating.Select the meaning of higher DC bus-bar voltage to be, exchange input for 400V, when adopting traditional active PFC control chip to realize the Boost booster circuit, if DC bus-bar voltage still is chosen as 400V, then can't guarantee AC network quality (High Power Factor and low distortion current), also make simultaneously back level inversion half-bridge can't mate the 400V high-pressure sodium lamp, so PFC of the present invention (power factor correction) circuit has selected 400V to exchange primary voltage and higher busbar voltage 672V.Electric ballast of the present invention adopts novel PFC mode, is exclusively used in 400V/600W gardening illumination high-pressure sodium lamp, can guarantee this lamp operate as normal, and have very high power factor (near 1).
Description of drawings
Fig. 1 is a theory diagram of the present invention; Fig. 2 is a circuit diagram of the present invention; Fig. 3 is the circuit diagram of embodiment nine to 11.
Embodiment
Embodiment one: referring to Fig. 1; this embodiment is by electromagnetic interface filter 1; full bridge rectifier 2; circuit of power factor correction 3; high frequency half bridge inverter circuit 4; load matching network 5; the agricultural sodium vapor lamp 6 of 400V/600W; start circuit for limiting surge current 8; single-chip microcomputer IC2; Drive and Control Circuit 9 and rectifying effect testing circuit 7 are formed; two outputs of 400V AC power connect two power inputs of electromagnetic interface filter 1 respectively; two outputs of electromagnetic interface filter 1 connect two inputs of full bridge rectifier 2 respectively; an output head grounding of full bridge rectifier 2; another output of full bridge rectifier 2 connects the dc supply input of circuit of power factor correction 3; the output of circuit of power factor correction 3 connects the dc supply input of high frequency half bridge inverter circuit 4; the output of high frequency half bridge inverter circuit 4 connects the input of load matching network 5; the voltage output end of load matching network 5 connects the voltage input end of the agricultural sodium vapor lamp 6 of 400V/600W; the control signal output ends of single-chip microcomputer IC2 connects the input of Drive and Control Circuit 9; the output of Drive and Control Circuit 9 connects the signal input end of high frequency half bridge inverter circuit 4; the startup guard signal output of single-chip microcomputer IC2 connects the input that starts circuit for limiting surge current 8; the output that starts circuit for limiting surge current 8 connects another output of full bridge rectifier 2; the rectifying effect signal output part of load matching network 5 connects the input of rectifying effect testing circuit 7, and the output of rectifying effect testing circuit 7 connects the rectifying effect detection signal input of single-chip microcomputer IC2.
Embodiment two: referring to Fig. 1, this embodiment with the difference of embodiment one is: it also comprises sodium vapor lamp current detection circuit 10, the current detection signal output of high frequency half bridge inverter circuit 4 connects the input of sodium vapor lamp current detection circuit 10, and the output of sodium vapor lamp current detection circuit 10 connects the current detection signal input of single-chip microcomputer IC2.Other compositions are identical with embodiment one with annexation.Utilize the real-time monitoring of single-chip microcomputer IC2 realization to electric current in the sodium vapor lamp.
Embodiment three: referring to Fig. 1, this embodiment with the difference of embodiment one is: it also comprises sodium vapor lamp voltage detecting circuit 11, the voltage input end of the agricultural sodium vapor lamp 6 of 400V/600W connects the input of sodium vapor lamp voltage detecting circuit 11, and the output of sodium vapor lamp voltage detecting circuit 11 connects the voltage detection signal input of single-chip microcomputer IC2.Other compositions are identical with embodiment one with annexation.Utilize the real-time monitoring of single-chip microcomputer IC2 realization to voltage in the sodium vapor lamp.
Embodiment four: referring to Fig. 2; this embodiment with the difference of embodiment one is: described startup circuit for limiting surge current 8 is by electromagnetic relay K1; first resistance R 1; the first diode D1; first DC power supply+VA; switching tube Q7; the 20 resistance R 20 and the 21 resistance R 21 are formed; first resistance R 1 is connected between the dc supply input of another output of full bridge rectifier 2 and circuit of power factor correction 3; the transfer contact of electromagnetic relay K1 is connected in parallel on the two ends of first resistance R 1; the positive terminal of the magnet exciting coil of electromagnetic relay K1 connects the output of first DC power supply+VA and the negative pole end of the first diode D1; the negative pole end of the magnet exciting coil of electromagnetic relay K1 connects the positive terminal of the first diode D1 and the collector electrode of switching tube Q7; the base stage of switching tube Q7 connects an end of the 20 resistance R 20 and the 21 resistance R 21; the other end of the 20 resistance R 20 connects the startup guard signal output of single-chip microcomputer IC2, and the other end of the 21 resistance R 21 connects emitter and the ground connection of switching tube Q7.Other compositions are identical with embodiment one with annexation.In this embodiment, it is the processor of MC908KX that single-chip microcomputer IC2 adopts model, and 14 pin of setting it are for starting the guard signal output, and single-chip microcomputer IC2 sends control signal and makes switching tube Q7 conducting, thus control electromagnetic relay K1 action.By electromagnetic relay K1 first resistance R 1 is connected in the output of rectifier bridge, when starting, electromagnetic relay K1 is earlier not closed, then electric current is flowed through first resistance R 1 earlier and is restricted, control electromagnetic relay K1 closure by single-chip microcomputer IC2 after several seconds, first resistance R 1 is cut away, to reach the metering function when starting.
Embodiment five: referring to Fig. 2, this embodiment with the difference of embodiment one is: described circuit of power factor correction 3 mainly is to be the power factor controlling chip IC 1 of MC33262P by model, the insulating gate type field effect tube Q1 that the frequency conversion pwm pulse that is produced by power factor controlling chip IC 1 is driven, the second diode D2, inductance filter L1, be used for the double closed-loop control system of the realization Boost boost conversion circuit that electrochemical capacitor C5 that voltage stabilizing uses and two divider resistances R3 and R7 constituted, the direct voltage of described circuit of power factor correction 3 outputs is 672V.Other compositions are identical with embodiment one with annexation.The electric ballast of normal conditions adopts lower DC bus-bar voltage, its shortcoming is to make back level inversion half-bridge can't mate the 400V high-pressure sodium lamp, therefore can only adopt the full-bridge inverting structure, complex structure, cost rising, the reliability of electric ballast are reduced; So the present invention selects PFC (power factor correction) mode of 400V inlet wire, 672V dc bus for use, two divider resistances are respectively R3=2M Ω, R7=7.83K Ω.
Embodiment six: referring to Fig. 2, this embodiment with the difference of embodiment five is: described circuit of power factor correction 3 also comprises quick triode Q2 and the 9th resistance R 9, the grid of insulating gate type field effect tube Q1 connects the emitter of quick triode Q2 and an end of the 9th resistance R 9, the source electrode of insulating gate type field effect tube Q1 connects the collector electrode of quick triode Q2, and the base stage of triode Q2 connects 7 pin of power factor controlling chip IC 1 and the other end of the 9th resistance R 9 fast.Other compositions are identical with embodiment five with annexation.Insulating gate type field effect tube Q1 in the circuit is the MOSFET of 800V; In order to reduce the turn-off power loss of insulating gate type field effect tube Q1, between the G-S of the insulating gate type field effect tube Q1 utmost point (being grid and source electrode), add a quick triode Q2, its model is SS8550, its effect is when insulating gate type field effect tube Q1 turn-offs the junction capacitance electric charge in the MOSFET to be bled off rapidly, to accelerate the turn-offing loss when reducing the MOSFET shutoff.
Embodiment seven: referring to Fig. 2; this embodiment with the difference of embodiment one is: it is MC908KX that described single-chip microcomputer IC2 adopts model; described Drive and Control Circuit 9 is by the tenth resistance R 10; the 11 resistance R 11; the 16 resistance R 16; the 6th capacitor C 6; the 7th capacitor C 7; the first transistor Q3; double-triode valve complementary push-pull circuit 4-1; pulse transformer T1; the 3rd DC power supply+VC and insulating gate type field effect tube quicken to turn-off and protective circuit 4-2 forms; 13 pin of single-chip microcomputer IC2 connect the base stage of the first transistor Q3 by the 16 resistance R 16; the 6th capacitor C 6 is connected in parallel on the two ends of the 16 resistance R 16; the collector electrode of the first transistor Q3 connects an end of the tenth resistance R 10 and the 11 resistance R 11; the other end of the tenth resistance R 10 connects the output of the 3rd DC power supply+VC; the other end of the 11 resistance R 11 connects the input of double-triode valve complementary push-pull circuit 4-1; the output of double-triode valve complementary push-pull circuit 4-1 connects the end of the same name of pulse transformer T1 primary coil by the 7th capacitor C 7; the non-same polarity of pulse transformer T1 primary coil and the grounded emitter of the first transistor Q3; pulse transformer T1 is provided with two secondary coils, and the output of two secondary coils of pulse transformer T1 quickens to turn-off by an insulating gate type field effect tube respectively and protective circuit 4-2 links to each other with the two path control signal input of high frequency half bridge inverter circuit 4.Other compositions are identical with embodiment one with annexation.Model is that the single-chip microcomputer IC2 of MC908KX is 8 single-chip microcomputers of motorola inc, the PWM pulse-width signal that single-chip microcomputer IC2 sends drives the first transistor Q3 conducting by the 16 resistance R 16, signal is drawn high+VC (13V) by the first transistor Q3 and the 3rd DC power supply+VC, utilize this signal to drive double-triode valve complementary push-pull circuit 4-1 again, the former limit of this push-pull circuit pulse transformer T1, two of the secondary of pulse transformer T1 are coil-induced to complementary two-way pwm signals, and utilize this two paths of signals to drive two the insulating gate type field effect tube Q5 and the Q6 of high frequency half bridge inverter circuit 4.
Embodiment eight: referring to Fig. 2; this embodiment with the difference of embodiment seven is: described insulating gate type field effect tube acceleration shutoff and protective circuit 4-2 are by the 12 resistance R 12; the 13 resistance R 13; the 14 resistance R 14; the 8th capacitor C 8; the 3rd diode D3; the 4th diode D4 and transistor seconds Q4 form; the end of the same name of secondary second coil of pulse transformer T1 connects an end of the 8th capacitor C 8; one end of the 13 resistance R 13 and the negative pole end of the 3rd diode D3; the positive terminal of the 3rd diode D3 connects an end of the 14 resistance R 14 and the emitter of transistor seconds Q4; the other end of the 14 resistance R 14; the other end of the 13 resistance R 13; the positive terminal of the other end of the 8th capacitor C 8 and the 4th diode D4 all links to each other with the base stage of transistor seconds Q4; the 4th diode D4 negative pole connects an end of the 12 resistance R 12 and the collector electrode of transistor seconds Q4; the other end of the 12 resistance R 12 connects the non-same polarity of secondary second coil of pulse transformer T1; the collector electrode of transistor seconds Q4 connects the grid of the second insulating gate type field effect tube Q6 of high frequency half bridge inverter circuit 4, and the emitter of transistor seconds Q4 connects the source electrode of the second insulating gate type field effect tube Q6 of high frequency half bridge inverter circuit 4.Other compositions are identical with embodiment seven with annexation.For first insulating gate type field effect tube Q5 that gives high frequency half bridge inverter circuit 4 and the PWM modulated drive signal that the second insulating gate type field effect tube Q6 provides the two-way complementation, just in time the connected mode with this embodiment is opposite for the mode that insulating gate type field effect tube quickens to turn-off and two inputs of protective circuit 4-2 and the end of the same name of secondary first coil of pulse transformer T1 link to each other with non-same polarity.
Embodiment nine: referring to Fig. 3, this embodiment with the difference of embodiment one is: described load matching network 5 is made up of the 14 capacitor C the 14, the 16 capacitor C 16, first inductance L 2, the output of high frequency half bridge inverter circuit 4 connects an end of the 14 capacitor C 14, the other end of the 14 capacitor C 14 connects an end of the 16 capacitor C 16 and the voltage input end of the agricultural sodium vapor lamp 6 of 400V/600W, the other end ground connection of the 16 capacitor C 16 by first inductance L 2.Other compositions are identical with embodiment one with annexation.Because the busbar voltage of circuit of power factor correction 3 outputs is 672V, when half-bridge is worked, each voltage that is in that the switching tube of off state bears is 672V, so in high frequency half bridge inverter circuit 4, select the withstand voltage MOSFET of 800V for use, first inductance L 2 is 340 μ H, the 14 capacitor C 14 is 200nF, and the 16 capacitor C 16 is 8.2nF.Single-chip microcomputer of the present invention adopts the sliding control strategy of resonance manner frequently.The startup of high-pressure sodium lamp needs higher starting resistor, so the startup method of ballast of the present invention is as follows: the parallel resonance characteristic of utilizing lc circuit, be that voltage resonance can produce the high voltage that is higher than several times of bus supply voltages at shunt capacitance (lamp end just), in practical operation, allow the operating frequency of half-bridge begin by some values greater than the LC series resonance frequency, diminish gradually then, be that frequency is to little slip, in this process, can produce a voltage that changes from small to big, when voltage is 1KV～4KV, sodium vapor lamp can be beaten bright at the lamp end; And after lamp is bright, again frequency is become the lower value of operate as normal.Such control procedure is programmed by single-chip microcomputer IC2 and is realized.The steady operation frequency is that 41KHz adds the low frequency Stochastic Modulation, to prevent lamp acoustic resonance phenomenon.
Embodiment ten: referring to Fig. 3, this embodiment with the difference of embodiment nine is: described rectifying effect testing circuit 7 is by the 7th diode D7, the 26 resistance R 26, the 27 resistance R 27, the 13 capacitor C 13 is formed, the other end of the 14 capacitor C 14 connects the positive terminal of the 7th diode D7 in the load matching network 5, the negative pole end of the 7th diode D7 connects an end of the 13 capacitor C 13 by the 26 resistance R 26, one end of the 27 resistance R 27 and 5 pin of single-chip microcomputer IC2, the other end ground connection of the 13 capacitor C 13 and the 27 resistance R 27.Other compositions are identical with embodiment nine with annexation.Use the time of a fixed length when high-pressure sodium lamp after, the electric current that flows through lamp can produce asymmetry, and promptly lamp ﹠ lantern is similar to rectifying tube, and this phenomenon is called rectifying effect.At this moment can quicken the aging of lamp, and ballast is damaged.By theory analysis and experimental verification, find when rectifying effect occurs, fluctuation can appear in the voltage that is connected on the 14 capacitor C 14 in the semi-bridge inversion output loop, therefore can judge the existence of rectifying effect by the voltage on detection series connection the 14 capacitor C 14; After dividing potential drop, give single-chip microcomputer IC2 with the voltage on the 14 capacitor C 14 and go to judge, when rectifying effect occurring, in time close the half-bridge of ballast and can protect ballast.
Embodiment 11: referring to Fig. 3, this embodiment with the difference of embodiment seven is: described sodium vapor lamp voltage detecting circuit 11 is by the 28 resistance R 28, the 37 resistance R 37, the 8th diode D8, the first in-phase proportion amplifying circuit 11-1, the 33 resistance R 33, the 17 capacitor C 17, the tenth diode D10, second DC power supply+VB constitutes, one end of the 28 resistance R 28 connects the voltage input end of the agricultural sodium vapor lamp 6 of 400V/600W, the other end of the 28 resistance R 28 connects an end of the 37 resistance R 37 and the positive terminal of the 8th diode D8, the other end ground connection of the 37 resistance R 37, the negative pole end of the 8th diode D8 connects the input of the first in-phase proportion amplifying circuit 11-1, the output of the first in-phase proportion amplifying circuit 11-1 links to each other with an end of the 33 resistance R 33, the other end of the 33 resistance R 33 connects 7 pin of single-chip microcomputer IC2, one end of the positive terminal of the tenth diode D10 and the 17 capacitor C 17, the other end ground connection of the 17 capacitor C 17, the negative pole end of the tenth diode D10 connects the output of second DC power supply+VB; Described sodium vapor lamp current detection circuit 10 is by second inductance L 3, the 12 capacitor C 12, the second in-phase proportion amplifying circuit 10-1, the 32 resistance R 32, the 18 capacitor C 18, the 11 diode D11 and second DC power supply+VB forms, the source electrode of the second insulating gate type field effect tube Q6 of high frequency half bridge inverter circuit 4 connects an end of second inductance L 3, the other end of second inductance L 3 connects an end of the 12 capacitor C 12 and the input of the second in-phase proportion amplifying circuit 10-1, the output of the second in-phase proportion amplifying circuit 10-1 connects an end of the 32 resistance R 32, the other end of the 32 resistance R 32 connects the positive terminal of the 11 diode D11, one end of the 18 capacitor C 18 and 8 pin of single-chip microcomputer IC2, the other end ground connection of the 18 capacitor C 18 and the 12 capacitor C 12, the negative pole end of the 11 diode D11 connects the output of second DC power supply+VB; The first in-phase proportion amplifying circuit 11-1 is identical with the circuit structure of the second in-phase proportion amplifying circuit 10-1.Other compositions are identical with embodiment seven with annexation.Utilize the 28 resistance R 28 and second inductance L 3 to obtain the voltage and current detection signal of high-pressure sodium lamp respectively, send into after the in-phase proportion amplifying circuit of going forward side by side amplifies and carry out analyzing and processing among the single-chip microcomputer IC2.
Embodiment 12: this embodiment with the difference of embodiment one is: two power inputs of described electromagnetic interface filter 1 are connected two live wires of mains supply respectively.Other compositions are identical with embodiment one with annexation.
Claims (10)
1, be applicable to the electric ballast of the agricultural high-pressure sodium lamp of 400V/600W, it comprises electromagnetic interface filter (1), full bridge rectifier (2), circuit of power factor correction (3), high frequency half bridge inverter circuit (4), two outputs of electromagnetic interface filter (1) connect two inputs of full bridge rectifier (2) respectively, an output head grounding of full bridge rectifier (2), another output of full bridge rectifier (2) connects the dc supply input of circuit of power factor correction (3), and the output of circuit of power factor correction (3) connects the dc supply input of high frequency half bridge inverter circuit (4); It is characterized in that it also comprises startup circuit for limiting surge current (8); single-chip microcomputer (IC2); Drive and Control Circuit (9); rectifying effect testing circuit (7) and load matching network (5); two outputs of 400V AC power connect two power inputs of electromagnetic interface filter (1) respectively; the output of high frequency half bridge inverter circuit (4) connects the input of load matching network (5); the voltage output end of load matching network (5) connects the voltage input end of the agricultural sodium vapor lamp of 400V/600W (6); the control signal output ends of single-chip microcomputer IC2 connects the input of Drive and Control Circuit (9); the output of Drive and Control Circuit (9) connects the signal input end of high frequency half bridge inverter circuit (4); the startup guard signal output of single-chip microcomputer (IC2) connects the input that starts circuit for limiting surge current (8); the output that starts circuit for limiting surge current (8) connects another output of full bridge rectifier (2); the rectifying effect signal output part of load matching network (5) connects the input of rectifying effect testing circuit (7), and the output of rectifying effect testing circuit (7) connects the rectifying effect detection signal input of single-chip microcomputer (IC2).
2, the electric ballast that is applicable to the agricultural high-pressure sodium lamp of 400V/600W according to claim 1, it is characterized in that it also comprises sodium vapor lamp current detection circuit (10) and sodium vapor lamp voltage detecting circuit (11), the current detection signal output of high frequency half bridge inverter circuit (4) connects the input of sodium vapor lamp current detection circuit (10), and the output of sodium vapor lamp current detection circuit (10) connects the current detection signal input of single-chip microcomputer (IC2); The voltage input end of the agricultural sodium vapor lamp of 400V/600W (6) connects the input of sodium vapor lamp voltage detecting circuit (11), and the output of sodium vapor lamp voltage detecting circuit (11) connects the voltage detection signal input of single-chip microcomputer (IC2).
3, the electric ballast that is applicable to the agricultural high-pressure sodium lamp of 400V/600W according to claim 1 is characterized in that the agricultural sodium vapor lamp of described 400V/600W (6) is the tubular super high-pressure sodium lamp of NAV 400V/600WSUPER of PHILIPS Co. or the 400V/600W high-pressure sodium lamp of Nanjing longitude and latitude company.
4; the electric ballast that is applicable to the agricultural high-pressure sodium lamp of 400V/600W according to claim 1; it is characterized in that described startup circuit for limiting surge current (8) is by electromagnetic relay (K1); first resistance (R1); first diode (D1); first DC power supply (+VA); switching tube (Q7); the 20 resistance (R20) and the 21 resistance (R21) are formed; first resistance (R1) is connected between the dc supply input of another output of full bridge rectifier (2) and circuit of power factor correction (3); the transfer contact of electromagnetic relay (K1) is connected in parallel on the two ends of first resistance (R1); the positive terminal of the magnet exciting coil of electromagnetic relay (K1) connects first DC power supply (+output VA) and the negative pole end of first diode (D1); the negative pole end of the magnet exciting coil of electromagnetic relay (K1) connects the positive terminal of first diode (D1) and the collector electrode of switching tube (Q7); the base stage of switching tube (Q7) connects an end of the 20 resistance (R20) and the 21 resistance (R21); the other end of the 20 resistance (R20) connects the startup guard signal output of single-chip microcomputer (IC2), and the other end of the 21 resistance (R21) connects the emitter and the ground connection of switching tube (Q7).
5, the electric ballast that is applicable to the agricultural high-pressure sodium lamp of 400V/600W according to claim 1, it is characterized in that described circuit of power factor correction (3) mainly is is the power factor controlling chip (IC1) of MC33262P by model, the insulating gate type field effect tube (Q1) that the frequency conversion pwm pulse that is produced by power factor controlling chip (IC1) is driven, second diode (D2), inductance filter (L1), the double closed-loop control system of the realization Boost boost conversion circuit that is used for electrochemical capacitor (C5) that voltage stabilizing uses and two divider resistances (R3) and (R7) is constituted, the direct voltage of described circuit of power factor correction (3) output is 672V.
6, the electric ballast that is applicable to the agricultural high-pressure sodium lamp of 400V/600W according to claim 1 is characterized in that two power inputs of described electromagnetic interface filter (1) connect two live wires of mains supply respectively.
7, be applicable to the electric ballast of the agricultural high-pressure sodium lamp of 400V/600W according to claim 1 or 5, it is characterized in that described circuit of power factor correction (3) also comprises quick triode (Q2) and the 9th resistance (R9), the grid of insulating gate type field effect tube (Q1) connects the emitter of quick triode (Q2) and an end of the 9th resistance (R9), the source electrode of insulating gate type field effect tube (Q1) connects the collector electrode of quick triode (Q2), and the base stage of triode (Q2) connects 7 pin of power factor controlling chip (IC1) and the other end of the 9th resistance (R9) fast.
8; the electric ballast that is applicable to the agricultural high-pressure sodium lamp of 400V/600W according to claim 1; it is characterized in that it is MC908KX that described single-chip microcomputer (IC2) adopts model; described Drive and Control Circuit (9) is by the tenth resistance (R10); the 11 resistance (R11); the 16 resistance (R16); the 6th electric capacity (C6); the 7th electric capacity (C7); the first transistor (Q3); double-triode valve complementary push-pull circuit (4-1); pulse transformer (T1); the 3rd DC power supply (+VC) quicken to turn-off and protective circuit (4-2) composition with insulating gate type field effect tube; 13 pin of single-chip microcomputer (IC2) connect the base stage of the first transistor (Q3) by the 16 resistance (R16); the 6th electric capacity (C6) is connected in parallel on the two ends of the 16 resistance (R16); the collector electrode of the first transistor (Q3) connects an end of the tenth resistance (R10) and the 11 resistance (R11); the other end of the tenth resistance (R10) connects the 3rd DC power supply (+VC) output; the other end of the 11 resistance (R11) connects the input of double-triode valve complementary push-pull circuit (4-1); the output of double-triode valve complementary push-pull circuit (4-1) connects the end of the same name of pulse transformer (T1) primary coil by the 7th electric capacity (C7); the non-same polarity of pulse transformer (T1) primary coil and the grounded emitter of the first transistor (Q3); pulse transformer (T1) is provided with two secondary coils, and the output of two secondary coils of pulse transformer (T1) quickens to turn-off by an insulating gate type field effect tube respectively and protective circuit (4-2) links to each other with the two path control signal input of high frequency half bridge inverter circuit (4).
9, according to claim 1 or the 8 described electric ballasts that are applicable to the agricultural high-pressure sodium lamp of 400V/600W, it is characterized in that described insulating gate type field effect tube acceleration shutoff and protective circuit (4-2) are by the 12 resistance (R12), the 13 resistance (R13), the 14 resistance (R14), the 8th electric capacity (C8), the 3rd diode (D3), the 4th diode (D4) and transistor seconds (Q4) are formed, the end of the same name of secondary second coil of pulse transformer (T1) connects an end of the 8th electric capacity (C8), the negative pole end of one end of the 13 resistance (R13) and the 3rd diode (D3), the positive terminal of the 3rd diode (D3) connects an end of the 14 resistance (R14) and the emitter of transistor seconds (Q4), the other end of the 14 resistance (R14), the other end of the 13 resistance (R13), the positive terminal of the other end of the 8th electric capacity (C8) and the 4th diode (D4) all links to each other with the base stage of transistor seconds (Q4), the 4th diode (D4) negative pole connects an end of the 12 resistance (R12) and the collector electrode of transistor seconds (Q4), the other end of the 12 resistance (R12) connects the non-same polarity of secondary second coil of pulse transformer (T1), the collector electrode of transistor seconds (Q4) connects the grid of second insulating gate type field effect tube (Q6) of high frequency half bridge inverter circuit (4), and the emitter of transistor seconds (Q4) connects the source electrode of second insulating gate type field effect tube (Q6) of high frequency half bridge inverter circuit (4); Described rectifying effect testing circuit (7) is made up of the 7th diode (D7), the 26 resistance (R26), the 27 resistance (R27), the 13 electric capacity (C13), the other end of the 14 electric capacity (C14) connects the positive terminal of the 7th diode (D7) in the load matching network (5), the negative pole end of the 7th diode (D7) is by an end, an end of the 27 resistance (R27) and 5 pin of single-chip microcomputer (IC2) of the 26 resistance (R26) connection the 13 electric capacity (C13), the other end ground connection of the 13 electric capacity (C13) and the 27 resistance (R27).
10, according to claim 1 or the 8 described electric ballasts that are applicable to the agricultural high-pressure sodium lamp of 400V/600W, it is characterized in that described sodium vapor lamp voltage detecting circuit (11) is by the 28 resistance (R28), the 37 resistance (R37), the 8th diode (D8), the first in-phase proportion amplifying circuit (11-1), the 33 resistance (R33), the 17 electric capacity (C17), the tenth diode (D10), second DC power supply (+VB) constitute, one end of the 28 resistance (R28) connects the voltage input end of the agricultural sodium vapor lamp of 400V/600W (6), the other end of the 28 resistance (R28) connects an end of the 37 resistance (R37) and the positive terminal of the 8th diode (D8), the other end ground connection of the 37 resistance (R37), the negative pole end of the 8th diode (D8) connects the input of the first in-phase proportion amplifying circuit (11-1), the output of the first in-phase proportion amplifying circuit (11-1) links to each other with an end of the 33 resistance (R33), the other end of the 33 resistance (R33) connects 7 pin of single-chip microcomputer (IC2), the positive terminal of the tenth diode (D10) and an end of the 17 electric capacity (C17), the other end ground connection of the 17 electric capacity (C17), the negative pole end of the tenth diode (D10) connect second DC power supply (+VB) output; Described sodium vapor lamp current detection circuit (10) is by second inductance (L3), the 12 electric capacity (C12), the second in-phase proportion amplifying circuit (10-1), the 32 resistance (R32), the 18 electric capacity (C18), the 11 diode (D11) and second DC power supply (+VB) form, the source electrode of second insulating gate type field effect tube (Q6) of high frequency half bridge inverter circuit (4) connects an end of second inductance (L3), the other end of second inductance (L3) connects an end of the 12 electric capacity (C12) and the input of the second in-phase proportion amplifying circuit (10-1), the output of the second in-phase proportion amplifying circuit (10-1) connects an end of the 32 resistance (R32), the other end of the 32 resistance (R32) connects the positive terminal of the 11 diode (D11), 8 pin of one end of the 18 electric capacity (C18) and single-chip microcomputer (IC2), the other end ground connection of the 18 electric capacity (C18) and the 12 electric capacity (C12), the negative pole end of the 11 diode (D11) connect second DC power supply (+VB) output; The first in-phase proportion amplifying circuit (11-1) is identical with the circuit structure of the second in-phase proportion amplifying circuit (10-1).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100105822A CN100542371C (en) | 2005-11-29 | 2005-11-29 | Be applicable to the electric ballast of the agricultural high-pressure sodium lamp of 400V/600W |
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| CNB2005100105822A CN100542371C (en) | 2005-11-29 | 2005-11-29 | Be applicable to the electric ballast of the agricultural high-pressure sodium lamp of 400V/600W |
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| CN100542371C CN100542371C (en) | 2009-09-16 |
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| CN100464484C (en) * | 2006-12-06 | 2009-02-25 | 哈尔滨工业大学 | Pre-correcting power for power factor |
| CN101925243A (en) * | 2010-08-23 | 2010-12-22 | 宁波市鄞州龙源照明电器有限公司 | Intelligent electronic ballast |
| CN102036455A (en) * | 2009-08-21 | 2011-04-27 | 南京吉山光电科技有限公司 | Electronic ballast for setting and adjusting output power in fixed time via dial-up |
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| CN104094674B (en) * | 2011-12-23 | 2016-08-24 | 赤多尼科两合股份有限公司 | There is illuminator, method and the operation device of the lamp rectifying effect detection of integration |
| CN103402297A (en) * | 2013-08-09 | 2013-11-20 | 广州龙之杰科技有限公司 | Pulse xenon lamp striking and pre-burning power supply system and method |
| CN103561531A (en) * | 2013-11-22 | 2014-02-05 | 上海宏源照明电器有限公司 | Electrodeless lamp ballast |
| CN104333965A (en) * | 2014-03-21 | 2015-02-04 | 东晨光电集团有限公司 | Novel high-efficiency energy-saving radio-frequency lamp |
| WO2021120362A1 (en) * | 2019-12-19 | 2021-06-24 | 福建省中科生物股份有限公司 | Plant lighting system and method for increasing rate of light utilisation |
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Assignee: Harbin Institute of Technology Assignor: Heilongjiang XingAn New Energy Co., Ltd. Contract record no.: 2010230000074 Denomination of invention: Electronic ballast suitable for 400V/600W agricultural high pressure sodium lamp Granted publication date: 20090916 License type: Exclusive License Open date: 20060719 Record date: 20101029 |
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Assignee: Heilongjiang XingAn New Energy Co., Ltd. Assignor: Harbin Institute of Technology Contract record no.: 2010230000074 Denomination of invention: Electronic ballast suitable for 400V/600W agricultural high pressure sodium lamp Granted publication date: 20090916 License type: Exclusive License Open date: 20060719 Record date: 20101029 |
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