CN102291917B - Deuterium lamp driving circuit - Google Patents
Deuterium lamp driving circuit Download PDFInfo
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- CN102291917B CN102291917B CN 201110276068 CN201110276068A CN102291917B CN 102291917 B CN102291917 B CN 102291917B CN 201110276068 CN201110276068 CN 201110276068 CN 201110276068 A CN201110276068 A CN 201110276068A CN 102291917 B CN102291917 B CN 102291917B
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Abstract
The invention discloses a deuterium lamp driving circuit, which comprises a preheating circuit, a triggering circuit and a pulse constant current driving circuit, wherein the preheating circuit is used for carrying out preheating on a lamp filament of a deuterium lamp before the deuterium lamp is turned on, the triggering circuit carries out discharging luminance build-up on the deuterium lamp after the preheating of the lamp filament of the deuterium lamp is completed, the pulse constant current driving circuit is used for regulating the luminous intensity of the deuterium lamp after the deuterium lamp carried out the luminance build-up, and the pulse constant current driving circuit comprises a constant current source circuit, a pulse control circuit and a selection circuit. Compared with the prior art, the invention discloses the deuterium lamp driving circuit. The pulse constant current driving mode is adopted in the invention for driving the control circuit, the work current of the deuterium lamp can be regulated at different gears, and the deuterium lamp can be controlled to output light at different intensities, so the application requirements in different occasions can be met.
Description
Technical field
The present invention relates to the luminescent device technical field, relate in particular to a kind of deuterium lamp drive circuit.
Background technology
Along with science and technology development, ultraviolet light more and more is applied to fields such as material science, environmental science, health care.Deuterium lamp is a kind of light source that sends ultraviolet light, is full of deuterium gas in the lamp.The luminescence mechanism of deuterium lamp is: the hot electron of filament cathode emission accelerates the anode motion under electric field action, with deuterium gas molecule realization inelastic collision and be excited, thus the continuous spectrum of radiation deuterium gas molecule.Deuterium lamp becomes desirable ultraviolet source gradually because of its good stability, volume characteristics little, that the life-span is long.
The mode that existing deuterium lamp drive circuit mostly adopts constant current to drive.As shown in Figure 1, the course of work of deuterium lamp is: after system's energising, and the voltage of filament pre-heating power supply 6 output 10V, the electric current about 1.2A carries out preheating to the deuterium lamp filament; High pressure trigger switch 2 is positioned at electric capacity charging gear simultaneously, triggers 1 pair of triggering of power supply electric capacity 8 by high pressure and charges.20-30 is after second, and trigger switch 2 is controlled automatically by timing circuit and turned to the discharge gear, and the high pressure that triggers 500-600V on the electric capacity 8 this moment is added on the deuterium lamp 5 by discharge resistance 4 it is lighted.After deuterium lamp 5 was lighted, being powered by 7 pairs of deuterium lamps 5 of deuterium lamp continuous operation power supply guaranteed its normal continuous firing.
Because in the prior art, what deuterium lamp adopted is the mode that constant current drives, it exports a constant operating current lighting back driving circuit always, make deuterium lamp send the ultraviolet light of same intensity, so deuterium lamp exist and can not satisfy the shortcoming of application demand that different occasion needs deuterium lamps send the ultraviolet light of varying strength.During such as the flue gas on-line monitoring, this high dust operational environment need provide stronger light source, so just having enough abilities to penetrate intensive flue dust reflects again, just need the luminous intensity of deuterium lamp bigger in this case, and deuterium lamp luminous intensity under the control of its drive circuit of the prior art is certain, can not send the light of varying strength according to the application demand of different occasions.
Summary of the invention
In view of this, the invention provides a kind of deuterium lamp drive circuit, to have overcome the drive circuit that deuterium lamp was adopted in the prior art, can't satisfy the problem of application demand that different occasion needs deuterium lamps send the ultraviolet light of varying strength.
For achieving the above object, the invention provides following technical scheme:
A kind of deuterium lamp drive circuit comprises:
Before deuterium lamp lighting, the filament of described deuterium lamp is carried out the preheat circuit of preheating;
After the filament pre-heating of described deuterium lamp is finished, to the discharge circuits for triggering of build-up of luminance of described deuterium lamp;
Be used for behind described deuterium lamp build-up of luminance, regulating the pulse constant current drive circuit of described deuterium lamp luminous intensity.
Preferably, described pulse constant current drive circuit comprises: constant-current source circuit, pulse control circuit and selection circuit;
Described constant-current source circuit comprises:
Power supply VCC to operational amplifier IC1 power supply;
Hot end connects the adjustable resistance VR1 of described power supply VCC, and its cold end connects an end of resistance R 10, and the other end of described resistance R 10 is connected with ground wire; Described operational amplifier IC1 in-phase input end connects hot end or the cold end of described adjustable resistance VR1;
The output of described operational amplifier IC1 connects the grid of power field effect pipe Q2, and inverting input is connected between the source electrode and current sampling resistor R11 of described power field effect pipe Q2, and the other end of described current sampling resistor R11 is connected with ground wire;
The drain electrode of described power field effect pipe Q2 is connected with deuterium lamp;
Described pulse control circuit comprises:
One end is connected with described power supply VCC, the resistance R 8 that the other end is connected with the collector electrode of triode Q1;
The emitter of described triode Q1 is connected with the in-phase input end of described operational amplifier IC1, and the base stage of described triode Q1 is connected with the end of resistance R 3 with resistance R 9 parallel connections respectively;
Described resistance R 3 is connected with the input of described selection circuit with an end of described resistance R 9 parallel connections, and the other end is connected with the working pulse signal; The other end of described R9 is connected with the output of described selection circuit.
Described selection circuit comprises:
The selection module of different electric current gears is provided;
The input of described selection module links to each other with the base stage of described triode Q1, and output links to each other with described resistance R 9.
Preferably, described preheat circuit comprises:
Double contact switch S2, two selecting sides of described double contact switch S2 connect high volt value power supply and low volt value power supply respectively, and stiff end is connected on second tie point of described deuterium lamp;
Be connected the coil JK2 that is combined into second relay with described double contact switch S2;
Described second relay links to each other with timer.
Preferably, described circuits for triggering comprise charging circuit and lighting circuit;
Described charging circuit comprises:
Trigger high pressure VH, the end of described triggering high pressure VH is connected with an end of charging current limiter resistance R 1, and the other end is connected with the selecting side of double contact switch S1;
Another selecting side of described double contact switch S1 links to each other with the 3rd tie point of described deuterium lamp;
The other end of described charging current limiter resistance R 1 is connected with an end that triggers capacitor C 1;
The other end of described triggering capacitor C 1 is connected with the stiff end of described double contact switch S1;
Described double contact switch S1 is connected with coil JK1 and is combined into first relay;
Described first relay is connected with described timer;
Described lighting circuit comprises:
Discharge current-limiting resistance R2, the end of described discharge current-limiting resistance R2 is connected with an end of described triggering capacitor C 1, and the other end links to each other with the end of strategic point stream diode D1;
The other end of described strategic point stream diode D1 is connected with first tie point of described deuterium lamp.
Preferably, described selection circuit comprises:
GSS Gear Select Switch CON1, described GSS Gear Select Switch CON1 has an input and at least two outputs;
The input of described GSS Gear Select Switch CON1 is connected with the base stage of described triode Q1;
The output of described GSS Gear Select Switch CON1 is respectively by being connected with the other end of described resistance R 9 behind the resistance that connects different resistances.
Preferably, the GSS Gear Select Switch CON1 in the described selection circuit comprises four outputs;
Four described outputs are connected with the other end of described resistance R 9 after connecting resistance R 4, R5, R6, R7 respectively.
Preferably, described selection module is adjustable resistance;
The stiff end of described adjustable resistance is the input of described selection module, and the adjustable side is the output of described selection module.
Preferably, comprising:
The electric current of keeping when described deuterium lamp is in the build-up of luminance state is adjusted by the position of transposing resistance R 10 and adjustable resistance VR1.
Preferably, comprising:
When the pulse control circuit input low level, described deuterium lamp keeps the state of build-up of luminance;
When the pulse control circuit input arranged the pulse signal of width, described deuterium lamp was in the state that luminous intensity is set.
Via above-mentioned technical scheme as can be known, compared with prior art, the invention discloses a kind of deuterium lamp drive circuit.Be provided with in the deuterium lamp drive circuit in the present invention for behind described deuterium lamp build-up of luminance, regulate the pulse constant current drive circuit of described deuterium lamp luminous intensity, the mode that adopts pulse constant current to drive drives, and the luminous intensity of regulating described deuterium lamp, thereby realize the application demand at different occasions, can control the light of deuterium lamp output varying strength.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is disclosed typical deuterium lamp continous way power principle figure in this background technology;
Fig. 2 is the structural representation of the disclosed a kind of deuterium lamp drive circuit of the embodiment of the invention
Fig. 3 is preheating and the circuits for triggering in the disclosed a kind of deuterium lamp drive circuit of the embodiment of the invention;
Fig. 4 is the pulse constant current drive circuit in the disclosed a kind of deuterium lamp drive circuit of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention discloses a kind of deuterium lamp drive circuit, as shown in Figure 2, mainly comprise:
Before deuterium lamp 104 is lighted, the filament of described deuterium lamp is carried out the preheat circuit 101 of preheating.
After the filament pre-heating of described deuterium lamp 104 is finished, to the discharge circuits for triggering 102 of build-up of luminance of described deuterium lamp 104.
Be used for behind described deuterium lamp 104 build-ups of luminance, regulating the pulse constant current drive circuit 103 of described deuterium lamp luminous intensity.
The course of work of above-mentioned deuterium lamp 104 drive circuits is:
Carry out preheating for the filament of described deuterium lamp 104 by described preheat circuit 101.After preheating finished, described circuits for triggering 102 will make its build-up of luminance to described deuterium lamp 104 discharges.After build-up of luminance is finished, carry out work by the described deuterium lamp 104 of described pulse constant current drive circuit 103 controls.
When described deuterium lamp 104 maintains the build-up of luminance state, namely not need for detection of the time, described pulse constant current drive circuit 103 provide a lower electric current can for described deuterium lamp 104; When described deuterium lamp 104 need be when waiting work, described pulse constant current drive circuit 103 is selected according to the working pulse that receives, and makes deuterium lamp 104 send the ultraviolet light of preset strength.
Need to prove that the working pulse that above-mentioned pulse constant current drive circuit 103 receives can be produced by other control end circuit or single-chip microcomputer, can change duty ratio according to practical situations, such as obtaining the time of integration of CCD.
According to the above-mentioned course of work, carry out the selection of deuterium lamp luminous intensity as required, make that described deuterium lamp drive circuit not only can saves energy, but also can increase the useful life of deuterium lamp.
On the disclosed basis of the invention described above embodiment, can carry out specific description for each circuit.
As shown in Figure 3, be the preheating in the disclosed a kind of deuterium lamp drive circuit of the embodiment of the invention and the body structure of circuits for triggering.
Wherein, described preheat circuit is made up of double contact switch S2 and coil JK2.
Double contact switch S2, two selecting sides of described double contact switch S2 connect high volt value power supply and low volt value power supply respectively, and stiff end is connected on second tie point of described deuterium lamp 104.
Be connected the coil JK2 that is combined into second relay with described double contact switch S2.
Described second relay links to each other with timer.
As shown in Figure 3, second tie point of described deuterium lamp 104 is the pin two of deuterium lamp 104; Two selecting sides of double contact switch S2 connect the power supply of 7V and 10V respectively, and still, the present invention does not limit for the power supply volt value of selecting side, can be selected according to demand by the technical staff.
The course of work of above-mentioned concrete preheat circuit is: at first the double contact switch power supply that connects 10V carries out preheating to the filament of described deuterium lamp, and after preheating was finished, described double contact switch connected the power supply of 7V, provides operating current to described deuterium lamp.
As shown in Figure 3, described circuits for triggering are made up of charging circuit and lighting circuit.
Wherein, charging circuit mainly is made up of resistance R 1, triggering high pressure VH, double contact switch S1, coil JK1 and triggering capacitor C 1, and concrete structure is:
The end of described triggering high pressure VH is connected with an end of charging current limiter resistance R 1, and the other end is connected with the selecting side of double contact switch S1.
Another selecting side of described double contact switch S1 links to each other with the 3rd tie point of described deuterium lamp L1, namely is connected with the pin 3 of described deuterium lamp L1.
The other end of described charging current limiter resistance R 1 is connected with an end that triggers capacitor C 1.
The other end of described triggering capacitor C 1 is connected with the stiff end of described double contact switch S1.
Described double contact switch S1 is connected with coil JK1 and is combined into first relay.
Described first relay is connected with described timer 105.
Described lighting circuit then mainly is made up of discharge current-limiting resistance R2, triggering capacitor C 1 and strategic point stream diode D1, and concrete structure is:
The end of described discharge current-limiting resistance R2 is connected with an end of described triggering capacitor C 1, and the other end links to each other with the end of strategic point stream diode D1.
The other end of described strategic point stream diode D1 is connected with first tie point of described deuterium lamp.
According to above-mentioned concrete structure, the course of work of circuits for triggering is: in the time of the filament pre-heating of described deuterium lamp, described two electric switch S1 of going out connect and trigger high pressure VH one end, and described triggering high pressure charges to triggering electric capacity; After described electric process finished, double contact switch S1 was connected on the pin 3 of described deuterium lamp L1,1 pair of described deuterium lamp of described triggering capacitor C build-up of luminance that discharges.
Need to prove that generally speaking, the time that electric capacity is charged is identical with the warm-up time of described deuterium lamp filament.
At the disclosed pulse constant current drive circuit of the embodiment of the invention multiple structure can be arranged, as long as can realize pulsed drive.
As shown in Figure 4, be the concrete disclosed a kind of pulse constant current drive circuit of the embodiment of the invention, it mainly comprises: constant-current source circuit, pulse control circuit and selection circuit.
Wherein, constant-current source circuit is made up of adjustable resistance VR1, resistance R 10, operational amplifier IC1, power effect pipe Q2 and current sampling resistor R11, and concrete structure is described below:
Described power supply VCC links to each other with operational amplifier IC1 and is used for powering to this operational amplifier IC1, the hot end of adjustable resistance VR1 also links to each other with this power supply VCC simultaneously, cold end (stiff end of adjustable resistance VR1) then is connected with a end of resistance R 10, and the b end of resistance R 10 then is connected with ground wire.
The in-phase input end of described operational amplifier IC1 can be connected in the hot end of described resistance R 10, also can be connected in the cold end of described adjustable resistance VR1, as long as satisfy the electric current that the impedance adjustment of adjustable resistance VR1 and resistance R 10 can be kept deuterium lamp build-up of luminance state.
Need to prove that in the disclosed accompanying drawing 4 of the embodiment of the invention, the connected mode that adopts is: the in-phase input end of operational amplifier IC1 is connected in the cold end of described adjustable resistance VR1, between described adjustable resistance VR1 and resistance R 10.
The output of described operational amplifier IC1 connects the grid of power field effect pipe Q2, and inverting input is connected between a end of the source electrode of power field effect pipe Q2 and current sampling resistor R11, and the b end of described resistance R 11 is connected with ground wire.
The drain electrode of described power field effect pipe Q2 is connected with the pin 3 (the 3rd tie point) of described deuterium lamp L1.
The course of work of constant-current source circuit described above is:
Under the control of described pulse constant current drive circuit, when keeping deuterium lamp build-up of luminance state, electric current I is kept in described power supply VCC output.The described computing formula (1) of keeping electric current is:
I＝V
IC1+/R11 (1)
Wherein, V
IC1+Be the dividing potential drop of described power supply VCC on described resistance R 10 and described adjustable resistance VR1.
Therefore, can make the in-phase input end voltage V of described operational amplifier IC1 by regulating described adjustable resistance VR1
IC1+Equal described deuterium lamp and keep the product of electric current I and described current sampling resistor R11.The computing formula of specific implementation (2) is:
V
IC1+＝VCC*R11/(R11+VR1) (2)
The resistance that R11 in above-mentioned formula (1) and the formula (2) and VR1 are respectively corresponding resistance.
Therefore, keep electric current I when described deuterium lamp is in the build-up of luminance state, can be determined by voltage and the described current sampling resistor R11 of the in-phase input end of described operational amplifier IC1.
Need to prove keeping electric current I and can also adjust by the position of adjusting resistance R 10 and adjustable resistance VR1 when described deuterium lamp is in the build-up of luminance state.The link position of this resistance R 10 and adjustable resistance VR1 is not limited to above-mentioned disclosed position, if described resistance R 10 and adjustable resistance VR1 series connection, and by adjusting the impedance of adjustable resistance VR1, can realize that the electric current I when keeping deuterium lamp is in the build-up of luminance state gets final product.
As shown in Figure 4, wherein, pulse control circuit is made up of resistance R 8, triode Q1, resistance R 3 and resistance R 9.Concrete structure is described below:
One end is connected with described power supply VCC, the resistance R 8 that the other end is connected with the collector electrode of triode Q1.
The emitter of described triode Q1 is connected with the in-phase input end of described operational amplifier IC1, and the base stage of described triode Q1 is connected with a end of resistance R 3 and a end of resistance R 9 respectively, namely is connected with the end of resistance R 3 with resistance R 9 parallel connections.
The a end of described resistance R 3 is connected with the input of described selection circuit, and the b end is connected with the working pulse signal; The b end of described R9 is connected with the output of described selection circuit.
The course of work of above-mentioned pulse control circuit is: under the control of described pulse constant current drive circuit, when needing deuterium lamp to send the light time of preset strength, described pulse control circuit is received the working pulse of importing predetermined width by a termination of resistance R 3, makes deuterium lamp send the ultraviolet light of preset strength.
Wherein, select electric routing selecting module to constitute, it is used under the control of described pulse constant current drive circuit, when needing deuterium lamp to send the light time of preset strength, at first by selecting circuit to select a suitable gear, satisfy default requirement thereby control the pulse current intensity of importing.It is the power that described selection circuit is used for control wave.Therefore, this selection module is to have the selection module of selecting different electric current gears, can have various ways.Only need the input of this selection module to be connected with the base stage of described triode Q1, output is connected with the other end that described resistance R 9 is not connected triode Q1 and gets final product.
As follows as the disclosed a kind of concrete structure among Fig. 4:
Described selection circuit is by the selector switch CON1 that five terminals are arranged, and the terminals that wherein are connected between a end of the base stage of Q1 and resistance R 3 are input; Four terminals that link to each other with resistance R 4, R5, R6 and R7 with different resistances respectively are output in addition.
Carry out testing at deuterium lamp 104, in the time of need sending the ultraviolet light of varying strength, concrete implementation is:
Because described selector switch CON1 is deuterium lamp electric current GSS Gear Select Switch.Wherein, first terminals are that input is common port, by selecting suitable resistance R 4, R5, R6, R7, can export the pulse signal of varying strength, make deuterium lamp send the ultraviolet light of varying strength.
For example, when the current strength of pulse signal output is respectively: when 0.25A, 0.5A, 1A and 1.5A, first terminals of selector switch CON1, intensity of the pulse signal that export its back that communicates with the terminals that are connected with resistance R 4 is 0.25A;
When first terminals of selecting switch CON1, the intensity of the pulse signal of its back output that is connected with the terminals that are connected with resistance R 5 is 0.5A, by that analogy, can export the pulse signal of varying strength.
Need to prove that described GSS Gear Select Switch has been not limited only to five terminals, a terminals arbitrarily can be arranged, determine according to actual needs, the resistance that each terminals connects also can be determined according to actual conditions.
In addition, it is above-described to select circuit to be not limited in, and comprises that all can reach the circuit of selecting circuit function, and described selection circuit can also be an adjustable resistance, stiff end is the input of described selection circuit, and the adjustable side is the output of described selection circuit.
According to the structure of above-described concrete pulse driving circuit, the implementation that the disclosed deuterium lamp drive circuit of the embodiment of the invention is complete is:
At first, the power supply of double contact switch S2 connection 10V in the described preheat circuit 101 carries out preheating to the filament of described deuterium lamp, and simultaneously, described timer picks up counting, the double contact switch S1 of described drive circuit 102 connects triggering high pressure VH one end, and described triggering electric capacity is charged.
Secondly, after timer arrived the default time, preheating and charging finished, and described double contact switch S2 and S1 adorn and change, and the hoe of selecting side were connected respectively on the pin 3 of the power supply of 7V and deuterium lamp, powered respectively and the process of the build-up of luminance that discharges.
At last, after the discharge build-up of luminance is finished, described deuterium lamp drive circuit is started working, when needs keep deuterium lamp build-up of luminance state, described constant-current source circuit provides a lower electric current for deuterium lamp, keep deuterium lamp build-up of luminance state, when needing deuterium lamp to send the ultraviolet light of preset strength, at first will select circuit to select suitable gear, pulse control circuit is imported the pulse signal of predetermined width then, adopt the working method of pulse, the instantaneous pulse value that provides can be very high, makes the instantaneous power of described deuterium lamp can bring up to considerably beyond its rated power.Described selection circuit can be selected different gears in addition, makes pulse current adjustable, thereby the ultraviolet light that makes deuterium lamp send varying strength satisfies the application demand of different occasions.
When the pulse control circuit input low level, described deuterium lamp keeps the state of build-up of luminance; When the pulse control circuit input arranged the pulse signal of width, described deuterium lamp was in the state that luminous intensity is set.
In sum:
The disclosed a kind of deuterium lamp drive circuit of the embodiment of the invention is provided with for behind described deuterium lamp build-up of luminance, regulate the pulse constant current drive circuit of described deuterium lamp luminous intensity, the mode that adopts pulse constant current to drive drives, and the luminous intensity that adopts the adjustable mode of deuterium lamp operating current stepping to regulate described deuterium lamp, can select the output intensity of deuterium lamp to satisfy the application demand of different occasions.In addition, adopt the working method of pulsed drive that the intensity of deuterium lamp is selected, can also improve the useful life of deuterium lamp greatly, and save the electric energy in the deuterium lamp use.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a deuterium lamp drive circuit is characterized in that, comprising:
Before deuterium lamp lighting, the filament of described deuterium lamp is carried out the preheat circuit of preheating;
After the filament pre-heating of described deuterium lamp is finished, to the discharge circuits for triggering of build-up of luminance of described deuterium lamp;
Be used for behind described deuterium lamp build-up of luminance, regulating the pulse constant current drive circuit of described deuterium lamp luminous intensity;
Described pulse constant current drive circuit comprises: constant-current source circuit, pulse control circuit and selection circuit;
Described constant-current source circuit comprises:
Power supply VCC to operational amplifier IC1 power supply;
Hot end connects the adjustable resistance VR1 of described power supply VCC, and its cold end connects an end of resistance R 10, and the other end of described resistance R 10 is connected with ground wire; Described operational amplifier IC1 in-phase input end connects hot end or the cold end of described adjustable resistance VR1;
The output of described operational amplifier IC1 connects the grid of power field effect pipe Q2, and inverting input is connected between the source electrode and current sampling resistor R11 of described power field effect pipe Q2, and the other end of described current sampling resistor R11 is connected with ground wire;
The drain electrode of described power field effect pipe Q2 is connected with deuterium lamp;
Described pulse control circuit comprises:
One end is connected with described power supply VCC, the resistance R 8 that the other end is connected with the collector electrode of triode Q1;
The emitter of described triode Q1 is connected with the in-phase input end of described operational amplifier IC1, and the base stage of described triode Q1 is connected with the end of resistance R 3 with resistance R 9 parallel connections respectively;
Described resistance R 3 is connected with the input of described selection circuit with an end of described resistance R 9 parallel connections, and the other end is connected with the working pulse signal; The other end of described R9 is connected with the output of described selection circuit;
Described selection circuit comprises:
The selection module of different electric current gears is provided;
The input of described selection module links to each other with the base stage of described triode Q1, and output links to each other with described resistance R 9.
2. deuterium lamp drive circuit according to claim 1 is characterized in that, described preheat circuit comprises:
Double contact switch S2, two selecting sides of described double contact switch S2 connect high volt value power supply and low volt value power supply respectively, and stiff end is connected on second tie point of described deuterium lamp;
Be connected the coil JK2 that is combined into second relay with described double contact switch S2;
Described second relay links to each other with timer.
3. deuterium lamp drive circuit according to claim 2 is characterized in that, described circuits for triggering comprise charging circuit and lighting circuit;
Described charging circuit comprises:
Trigger high pressure VH, the end of described triggering high pressure VH is connected with an end of charging current limiter resistance R 1, and the other end is connected with the selecting side of double contact switch S1;
Another selecting side of described double contact switch S1 links to each other with the 3rd tie point of described deuterium lamp;
The other end of described charging current limiter resistance R 1 is connected with an end that triggers capacitor C 1;
The other end of described triggering capacitor C 1 is connected with the stiff end of described double contact switch S1;
Described double contact switch S1 is connected with coil JK1 and is combined into first relay;
Described first relay is connected with described timer;
Described lighting circuit comprises:
Discharge current-limiting resistance R2, the end of described discharge current-limiting resistance R2 is connected with an end of described triggering capacitor C 1, and the other end links to each other with the end of strategic point stream diode D1;
The other end of described strategic point stream diode D1 is connected with first tie point of described deuterium lamp.
4. deuterium lamp drive circuit according to claim 1 is characterized in that, described selection circuit comprises:
GSS Gear Select Switch CON1, described GSS Gear Select Switch CON1 has an input and at least two outputs;
The input of described GSS Gear Select Switch CON1 is connected with the base stage of described triode Q1;
The output of described GSS Gear Select Switch CON1 is respectively by being connected with the other end of described resistance R 9 behind the resistance that connects different resistances.
5. deuterium lamp drive circuit according to claim 4 is characterized in that, the GSS Gear Select Switch CON1 in the described selection circuit comprises four outputs;
Four described outputs are connected with the other end of described resistance R 9 after connecting resistance R 4, R5, R6, R7 respectively.
6. deuterium lamp drive circuit according to claim 1 is characterized in that, described selection module is adjustable resistance;
The stiff end of described adjustable resistance is the input of described selection module, and the adjustable side is the output of described selection module.
7. deuterium lamp drive circuit according to claim 1 is characterized in that, comprising:
The electric current of keeping when described deuterium lamp is in the build-up of luminance state is adjusted by the position of transposing resistance R 10 and adjustable resistance VR1.
8. according to any described deuterium lamp drive circuit in the claim 1～7, it is characterized in that, comprising:
When the pulse control circuit input low level, described deuterium lamp keeps the state of build-up of luminance;
When the pulse control circuit input arranged the pulse signal of width, described deuterium lamp was in the state that luminous intensity is set.
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|---|---|---|---|
| CN 201110276068 CN102291917B (en) | 2011-09-16 | 2011-09-16 | Deuterium lamp driving circuit |
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| CN 201110276068 CN102291917B (en) | 2011-09-16 | 2011-09-16 | Deuterium lamp driving circuit |
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| CN102291917A CN102291917A (en) | 2011-12-21 |
| CN102291917B true CN102291917B (en) | 2013-08-28 |
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|---|---|---|---|---|
| CN105682323B (en) * | 2016-02-18 | 2018-09-21 | 无锡蓝天电子股份有限公司 | A kind of ultraviolet lamp power supply |
| CN114340074A (en) * | 2021-12-19 | 2022-04-12 | 安徽庆宇光电科技有限公司 | Deuterium lamp power supply used in DOAS technology |
| CN117406686B (en) * | 2023-12-15 | 2024-02-23 | 上海力兹照明电气有限公司 | Deuterium lamp preparation production line manufacturing and quality detection control method and device |
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| US4438370A (en) * | 1981-03-03 | 1984-03-20 | Isco, Inc. | Lamp circuit |
| JP3064359B2 (en) * | 1990-08-30 | 2000-07-12 | 浜松ホトニクス株式会社 | Gas discharge tube drive |
| CN1472516A (en) * | 2003-07-14 | 2004-02-04 | 中国科学院安徽光学精密机械研究所 | Impulse modulation for ultraviolet deuterium light source and apparatus thereof |
| CN201639839U (en) * | 2010-04-21 | 2010-11-17 | 杭州远方光电信息有限公司 | Deuterium lamp power supply |
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| US4438370A (en) * | 1981-03-03 | 1984-03-20 | Isco, Inc. | Lamp circuit |
| JP3064359B2 (en) * | 1990-08-30 | 2000-07-12 | 浜松ホトニクス株式会社 | Gas discharge tube drive |
| CN1472516A (en) * | 2003-07-14 | 2004-02-04 | 中国科学院安徽光学精密机械研究所 | Impulse modulation for ultraviolet deuterium light source and apparatus thereof |
| CN201639839U (en) * | 2010-04-21 | 2010-11-17 | 杭州远方光电信息有限公司 | Deuterium lamp power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102291917A (en) | 2011-12-21 |
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