CN101309545A - Dimming energy-saving lamp suitable for one-button control - Google Patents
Dimming energy-saving lamp suitable for one-button control Download PDFInfo
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Abstract
The invention discloses a dimming energy-saving lamp suitable for one-key control, which comprises a lamp holder, a lamp cavity provided with an electronic ballast and an energy-saving lamp tube, wherein a rectifier filter circuit, a voltage-controlled oscillation half-bridge circuit, a series resonance circuit and a single chip microcomputer processing circuit are arranged in the electronic ballast; the control circuit has the advantages that after the working state detection circuit detects that the on-off state of the power switch is changed, the single chip outputs different PWM signals and converts the PWM signals into average voltage, and the average voltage is input into the input end of the voltage-controlled oscillation half-bridge circuit after fitting, so that the working frequency of the electronic ballast and the current of the light source are changed according to the controlled requirement, and the brightness of the light source is adjusted; the invention realizes the adjustment of the brightness of the light source through the on-off conversion of the power switch, saves a light adjusting switch and does not need to reform the original electric appliance wiring during the installation.
Description
Technical field
The present invention relates to a kind of lighting device, especially relate to a kind of light modulating energy-saving lamp that is applicable to one-touch control.
Background technology
China is populous, and per capita resources is comparatively poor, utilizes the illumination of electricity-saving lamp replace incandescent, has far reaching significance for the electric power energy of saving national precious.But since all multifactor make present electricity-saving lamp fully replace incandescent as main illuminations, one of them puzzlement factor is: generally speaking, existing electricity-saving lamp can not carry out light-source brightness to be regulated, if utilize the standard incandescent lamp dimmer---thyristor exchanges voltage regulator existing electricity-saving lamp is carried out light modulation by force, electricity-saving lamp can't operate as normal so, phenomenon can appear significantly flashing in power saving fluorescent lamps, can't bring into play the illumination effect, the useful life that simultaneously also can greatly reduce power saving fluorescent lamps, even damage circuit elements device, cause to use electricity-saving lamp, still need incandescent lamp in the occasion that needs brightness to regulate.
For addressing the above problem, relevant industry has proposed various solutions, as a kind of cut formula dimmable energy-saving lamp on sale in the market, usually be provided with passive pump formula circuit in the electric ballast of this electricity-saving lamp, this passive pump formula circuit is connected to the phase-cut dimming switch, by the control to the phase-cut dimming switch, realizes the amplitude adjustment of inner direct voltage, thereby cause the operating frequency of electric ballast and the change of source current, reach the adjusting of light-source brightness; Another kind of cut formula dimmable energy-saving lamp, mainly be provided with the VCO half-bridge circuit of independent-excited in the electric ballast of this electricity-saving lamp, the input of VCO half-bridge circuit is connected to current rectifying and wave filtering circuit, current rectifying and wave filtering circuit is circumscribed with dimmer switch, the output of VCO half-bridge circuit is connected with light source (power saving fluorescent lamps) by series resonant circuit, when controlling by dimmer switch, the input power supply of current rectifying and wave filtering circuit after with cut carries out conversion of signals and obtains average voltage, utilize the control of average voltage realization, thereby the controlled formula that causes electric ballast operating frequency and source current changes the adjusting that realizes light-source brightness to the input of VCO half-bridge circuit.Though above-mentioned commercially available cut formula dimmable energy-saving lamp has been realized the function that light-source brightness is regulated, but all need light modulating device (dimmer switch) for the The whole control circuit design special use of electricity-saving lamp, and external dimmer switch need be transformed original electrical equipment wiring, could adapt to the demand of the The whole control circuit of electricity-saving lamp; And control is comparatively complicated when exist using, and the electricity-saving lamp cost makes this cut formula dimmable energy-saving lamp still can not enter popular market than problems such as height, still replace incandescent at large.
Summary of the invention
The one-touch control electricity-saving lamp light-source brightness that is applicable to that technical problem to be solved by this invention provides and a kind ofly need not external dimmer switch, need not to transform the electrical equipment wiring changes, and light modulating energy-saving lamp easy to use, that cost is low.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of light modulating energy-saving lamp that is applicable to one-touch control, comprise lamp holder, lamp chamber and power saving fluorescent lamps, described lamp is provided with electric ballast in the chamber, be provided with current rectifying and wave filtering circuit in the described electric ballast, VCO half-bridge circuit and series resonant circuit, the input of described current rectifying and wave filtering circuit is connected with external power source by described lamp holder, the output of described current rectifying and wave filtering circuit is connected with the input of described VCO half-bridge circuit, the output of described VCO half-bridge circuit is connected with described power saving fluorescent lamps by described series resonant circuit, also be provided with the single-chip microcomputer treatment circuit in the described electric ballast, the input of described single-chip microcomputer treatment circuit is connected with Working state checking circuit, and the output of described single-chip microcomputer treatment circuit is connected with described VCO half-bridge circuit by signaling conversion circuit; Described Working state checking circuit output sampled signal, described single-chip microcomputer treatment circuit is handled the described sampled signal that receives, and output pulse width modulation signal, described signaling conversion circuit converts described pulse width modulating signal to level and smooth dimmer voltage signal, and described dimmer voltage signal is transfused to described VCO half-bridge circuit and is used to realize light modulation; Be preset with control program in the described single-chip microcomputer treatment circuit, make light modulating energy-saving lamp be operated in the brightest operating state, continuous gradual change operating state and locking bright spot operating state respectively according to described control program.
Described Working state checking circuit comprises first electric capacity, second electric capacity and first diode, the equal ground connection of first end of first end of described first electric capacity and described second electric capacity, second end of described second electric capacity is connected with the anode of described first diode, be provided with first resistance between second end of described first electric capacity and the negative terminal of described first diode, be provided with second resistance between first end of described first electric capacity and second end of described first electric capacity, described first electric capacity is connected with described single-chip microcomputer treatment circuit with the public connecting end of described first resistance.
Described single-chip microcomputer treatment circuit comprises single-chip microcomputer, described single-chip microcomputer connects the single-chip microcomputer power supply circuits that promising described single-chip microcomputer provides operating voltage, described single-chip microcomputer power supply circuits comprise second diode, the 3rd diode and first inductance, the first end ground connection of described first inductance, be provided with the 3rd electric capacity between second end of described first inductance and the anode of described the 3rd diode, the anode of described the 3rd diode is connected with first voltage stabilizing didoe, the anode of described first voltage stabilizing didoe is connected with first end of described first inductance, the negative terminal of described the 3rd diode is connected with the anode of described second diode and the anode of described first diode respectively, and the negative terminal of described second diode is connected with described single-chip microcomputer.
Be provided with the 4th electric capacity between first end of described first inductance and the negative terminal of described second diode, the negative terminal of described the 4th electric capacity is connected with first end of described first inductance, and the anode of described the 4th electric capacity is connected with the negative terminal of described second diode.
Described VCO half-bridge circuit comprises oscillator, described oscillator connects the oscillator power supply circuits that promising described oscillator provides operating voltage, described oscillator power supply circuits comprise the 5th electric capacity, the 6th electric capacity and second voltage stabilizing didoe, the negativing ending grounding of described the 5th electric capacity, be provided with the 4th diode between the negative terminal of the anode of described the 5th electric capacity and described second voltage stabilizing didoe, the negative terminal of described the 4th diode is connected with the anode of described the 5th electric capacity, the anode of described the 4th diode is connected with the negative terminal of described second voltage stabilizing didoe, described the 6th electric capacity connects the anode and the described oscillator of described the 4th diode, and the anode of described the 5th electric capacity is connected with the feeder ear of described series resonant circuit by the 3rd resistance.
Described series resonant circuit comprises first field effect transistor and second field effect transistor, the grid of the grid of described first field effect transistor and described second field effect transistor is connected with described oscillator respectively, the drain electrode of described first field effect transistor is connected with the feeder ear of described series resonant circuit, the source electrode of described first field effect transistor is connected with the drain electrode of described second field effect transistor, the drain electrode of described second field effect transistor is connected with described oscillator, be provided with second inductance between the drain electrode of described second field effect transistor and the described power saving fluorescent lamps, the source ground of described second field effect transistor.
Described signaling conversion circuit comprises the 5th diode and the 7th electric capacity, the anode of described the 5th diode is connected with described single-chip microcomputer, be provided with the 4th resistance between the anode of the negative terminal of described the 5th diode and described the 7th electric capacity, be provided with the 5th resistance between the negative terminal of the anode of described the 7th electric capacity and described the 7th electric capacity, the negativing ending grounding of described the 7th electric capacity, the anode of described the 7th electric capacity is connected with described oscillator.
Described power saving fluorescent lamps is connected with described oscillator, and described power saving fluorescent lamps is given described oscillator with the source current signal feedback that produces.
Described control program is preset in the described single-chip microcomputer, is provided with pulse width modulation subprogram and interrupt service subroutine in the described control program, and the process of described control program control light modulating energy-saving lamp work is as follows:
1. behind the light modulating energy-saving lamp power-up initializing, the sampled signal of Working state checking circuit output high level, what control program was confirmed the input single-chip microcomputer is the sampled signal of high level, the pulse width modulating signal of high level handled and exports by single-chip microcomputer to the sampled signal of high level, the pulse width modulating signal of high level is through the dimmer voltage signal of signaling conversion circuit conversion back to VCO half-bridge circuit input high level, at this moment, light modulating energy-saving lamp is operated in the brightest operating state;
During 2. the brightest operating state, whether the input port that control program is monitored single-chip microcomputer in real time has the sampled signal of input low level, if there is not the sampled signal of input low level, then light modulating energy-saving lamp still is operated in the brightest operating state; If the sampled signal of input low level is arranged, then control program judges whether the input port of single-chip microcomputer has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the light modulating energy-saving lamp control program quits work; If the sampled signal of input high level is arranged, then control program changes the pulse width modulation subprogram over to the sampled signal of high level is handled, and the pulse width modulating signal of output continuous gradation is to signaling conversion circuit, after changing, import the dimmer voltage signal of continuous gradation to the VCO half-bridge circuit, at this moment, light modulating energy-saving lamp is operated in the continuous gradual change operating state of circulation, and simultaneously, single-chip microcomputer is counted circulation continuous gradation process;
During 3. continuous gradual change operating state, whether the input port that control program is monitored single-chip microcomputer in real time has the sampled signal of input low level, if there is not the sampled signal of input low level, then when the count value of circulation continuous gradation process does not reach the default cycle-index of control program, light modulating energy-saving lamp still is operated in continuous gradual change operating state, when the count value of circulation continuous gradation process reaches the default cycle-index of control program, light modulating energy-saving lamp will be operated in the brightest operating state; If the sampled signal of input low level is arranged, then control program changes interrupt service subroutine over to, and judge whether the input port of single-chip microcomputer has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the light modulating energy-saving lamp control program quits work; If the sampled signal of input high level is arranged, then single-chip microcomputer carries out data acquisition and state locking processing to the sampled signal of high level, and output constant pulse width modulation signal is to signaling conversion circuit, after changing, import constant dimmer voltage signal to the VCO half-bridge circuit, at this moment, light modulating energy-saving lamp is operated in locking bright spot operating state;
4. in locking bright spot operating state, whether the input port that control program is monitored single-chip microcomputer in real time has the sampled signal of input low level, if there is not the sampled signal of input low level, then light modulating energy-saving lamp still is operated in locking bright spot operating state; If the sampled signal of input low level is arranged, then control program judges whether the input port of single-chip microcomputer has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the light modulating energy-saving lamp control program quits work; If the sampled signal of input high level is arranged, then interrupt service subroutine returns control program, returns continuous gradual change operating state.
Described setting-up time is 2～3 seconds; The sampled signal of described Working state checking circuit output high level is powered on to operate to mains switch by the user and causes; The sampled signal of described Working state checking circuit output low level carries out power-down operation by the user to mains switch and causes.
Compared with prior art, the invention has the advantages that Working state checking circuit is after the on off operating mode that detects mains switch changes, the pulse width modulating signal that the output of single-chip microcomputer treatment circuit is different, and convert pulse width modulating signal to average voltage by signaling conversion circuit, the input of input VCO half-bridge circuit after the average voltage match, the operating frequency and the source current of electric ballast are changed by controlled requirement, thereby effectively realized the adjusting of light-source brightness; Electricity-saving lamp of the present invention is applicable to one-touch control, only need just can realize easily the adjusting of light-source brightness by the break-make conversion of a mains switch, special external dimmer switch and other servicing units have not only been saved, and when installing and using, need not original electrical equipment wiring is transformed, be very easy to the user, also reduced cost widely; The present invention keeps the operation of single-chip microcomputer internal program by the 4th capacitance discharges, make it make response to the power down process, realize the conversion of mode of operation, keep the method for the information of preserving under the power-down conditions to compare with single-chip microcomputer that employing has a non-volatile memories function and greatly reduce cost; The source current signal that the present invention produces power saving fluorescent lamps feeds back to oscillator by the current detecting feedback end of power saving fluorescent lamps, makes that the light source of output is more stable; When using this light modulating energy-saving lamp, the main control program that is preset in the single-chip microcomputer that utilizes, the action of the switch of operating power each time by supervisory user realizes control and the execution to this light modulating energy-saving lamp dimming function.
Description of drawings
Fig. 1 is a theory structure block diagram of the present invention;
Fig. 2 a is a circuit diagram one of the present invention;
Fig. 2 b is a circuit diagram two of the present invention;
Fig. 3 is for using the application schematic diagram of electricity-saving lamp of the present invention;
Fig. 4 a is the process schematic diagram one of control program control light modulating energy-saving lamp work;
Fig. 4 b is the process schematic diagram two of control program control light modulating energy-saving lamp work.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2 a, Fig. 2 b and shown in Figure 3, a kind of light modulating energy-saving lamp that is applicable to one-touch control, this light modulating energy-saving lamp 1 comprises lamp holder 11, lamp chamber 12 and power saving fluorescent lamps 13 (light source), be provided with electric ballast 14 in the lamp chamber 12, be provided with current rectifying and wave filtering circuit 141 in the electric ballast 14, VCO half-bridge circuit 142 and series resonant circuit 143, the input of current rectifying and wave filtering circuit 141 is connected with external power source 5 by lamp holder 11, the output of current rectifying and wave filtering circuit 141 is connected with the input of VCO half-bridge circuit 142, the output of VCO half-bridge circuit 142 is connected with power saving fluorescent lamps 13 by series resonant circuit 143, also be provided with single-chip microcomputer treatment circuit 144 in the electric ballast 14, the input of single-chip microcomputer treatment circuit 144 is connected with Working state checking circuit 145, and the output of single-chip microcomputer treatment circuit 144 is connected with VCO half-bridge circuit 142 by signaling conversion circuit 146; Working state checking circuit 145 output sampled signals, 144 pairs of sampled signals that receive of single-chip microcomputer treatment circuit are handled, and output pulse width modulation (PWM, Pulse Width Modulation) signal, signaling conversion circuit 146 converts pulse width modulating signal to level and smooth dimmer voltage signal, VCO half-bridge circuit 142 receives level and smooth dimmer voltage signal, and the dimmer voltage signal is used to realize light modulation.Be preset with control program in the single-chip microcomputer treatment circuit, make light modulating energy-saving lamp be operated in the brightest operating state, continuous gradual change operating state and locking bright spot operating state respectively according to control program.
Working state checking circuit 145 comprises first capacitor C 1, second capacitor C 2 and the first diode D1, first end of first capacitor C, 1 first end and second capacitor C 2 is ground connection all, second end of second capacitor C 2 is connected with the anode of the first diode D1, be provided with first resistance R 1 between second end of first capacitor C 1 and the negative terminal of the first diode D1, the two ends of first capacitor C 1 have been arranged in parallel second resistance R, 2, the first capacitor C 1 and have been connected with single-chip microcomputer treatment circuit 144 with the public connecting end of first resistance R 1.
Single-chip microcomputer treatment circuit 144 comprises single-chip microcomputer 31, single-chip microcomputer 31 connects the single-chip microcomputer power supply circuits 32 that promising single-chip microcomputer 31 provides operating voltage, single-chip microcomputer power supply circuits 32 comprise the second diode D2, the 3rd diode D3 and first inductance L 1, the first end ground connection of first inductance L 1, be provided with the 3rd capacitor C 3 between second end of first inductance L 1 and the anode of the 3rd diode D3, the anode of the 3rd diode D3 is connected with the first voltage stabilizing didoe Z1, the anode of the first voltage stabilizing didoe Z1 is connected with first end of first inductance L 1, the negative terminal of the 3rd diode D3 is connected with the anode of the second diode D2 and the anode of the first diode D1 respectively, and the negative terminal of the second diode D2 is connected with single-chip microcomputer 31.Single-chip microcomputer 31 can adopt the single-chip microcomputer that has the non-volatile memories function, but in the present embodiment, be provided with the 4th capacitor C 4 between first end of first inductance L 1 and the negative terminal of the second diode D2, the negative terminal of the 4th capacitor C 4 is connected with first end of first inductance L 1, and the anode of the 4th capacitor C 4 is connected with the negative terminal of the second diode D2; The 4th capacitor C 4 is a storage capacitor, when externally the mains switch power down time was less than 2 seconds, keep the operation of single-chip microcomputer 31 internal programs by the discharge of the 4th capacitor C 4, make it make response to the power down process, realize the conversion of mode of operation, keep the method for the information of preserving under the power-down conditions to compare with the single-chip microcomputer that employing has a non-volatile memories function, utilize storage capacitor and do not have the mode that the single-chip microcomputer of non-volatile memories function combines to greatly reduce cost.The model of the single-chip microcomputer 31 in the present embodiment is EM78P153S, also can adopt other single-chip microcomputers with identical function, generally considers with regard to the aspects such as capacity of nominal operation temperature, I/O port number, power supply rated voltage, program storage.
VCO half-bridge circuit 142 comprises oscillator 21, oscillator 21 connects the oscillator power supply circuits 22 that promising oscillator 21 provides operating voltage, oscillator power supply circuits 22 comprise the 5th capacitor C 5, the 6th capacitor C 6 and the second voltage stabilizing didoe Z2, the negativing ending grounding of the 5th capacitor C 5, be provided with the 4th diode D4 between the negative terminal of the anode of the 5th capacitor C 5 and the second voltage stabilizing didoe Z2, the negative terminal of the 4th diode D4 is connected with the anode of the 5th capacitor C 5, the anode of the 4th diode D4 is connected with the negative terminal of the second voltage stabilizing didoe Z2, the 6th capacitor C 6 connects the anode of the 4th diode D4 and the anode of oscillator 21, the five capacitor C 5 is connected with the feeder ear INVCC of series resonant circuit 143 by the 3rd resistance R 3.The model of the oscillator 21 in the present embodiment is L6574D.
Signaling conversion circuit 146 comprises the 5th diode D5 and the 7th capacitor C 7, the anode of the 5th diode D5 is connected with single-chip microcomputer 31, be provided with the 4th resistance R 4 between the anode of the negative terminal of the 5th diode D5 and the 7th capacitor C 7, be provided with the 5th resistance R 5 between the negative terminal of the anode of the 7th capacitor C 7 and the 7th capacitor C 7, the negativing ending grounding of the 7th capacitor C 7, the anode of the 7th capacitor C 7 is connected with oscillator 21.
Power saving fluorescent lamps 13 can be connected with oscillator 21, at this moment, power saving fluorescent lamps 13 feeds back to oscillator 21 with the source current signal that the produces current detecting feedback end IOUT by power saving fluorescent lamps 13, makes that the light source of output is more stable.Be provided with the 6th resistance R 6 between current detecting feedback end IOUT and the oscillator 21, first end of the 6th resistance R 6 is connected with current detecting feedback end IOUT, second end one tunnel of the 6th resistance R 6 directly is connected with oscillator 21, the 8th capacitor C 8 of leading up to is connected with oscillator 21, the 8th capacitor C 8 is connected with the 6th diode D6 with the junction of oscillator 21, the negative terminal of the 6th diode D6 is connected with oscillator 21, the anode of the 6th diode D6 is connected with the 7th resistance R 7, first end of the 7th resistance R 7 is connected with the anode of the 6th diode D6, second end of the 7th resistance R 7 is connected with the 8th resistance R 8, the public connecting end of the 7th resistance R 7 and the 8th resistance R 8 is connected with oscillator 21, the other end ground connection of the 8th resistance R 8.
Among Fig. 2 a and Fig. 2 b, ING is a system reference zero potential end, and OUT is the series resonant circuit output, and CT1 and CT2 are the timing capacitor incoming end, and CF is the bootstrap capacitor incoming end.
As shown in Figure 3, when light modulating energy-saving lamp of the present invention is installed, do not need former electrical equipment wiring 8 (illuminating lines) that set of user are transformed, do not need again external any dimmer switch or control power supply yet, only need this light modulating energy-saving lamp directly is screwed into lamp socket 6, utilize the break-make of the mains switch 7 (common switch with mechanical contact) that is connected with illuminating line 8 to realize brightness light modulation and control, not only simplified user's operation requirement, also reduced the cost input.
Control program is preset in the single-chip microcomputer 31, be provided with pulse width modulation subprogram and interrupt service subroutine in the control program, when using this light modulating energy-saving lamp, main utilize the action by the switch of operating power each time 7 of supervisory user of the control program that is arranged in the single-chip microcomputer 31 to realize control and execution to this light modulating energy-saving lamp dimming function.Shown in Fig. 4 a and Fig. 4 b, the process of control program control light modulating energy-saving lamp work can be described as:
1. turn on light first (first energized switch 7) or light modulating energy-saving lamp when power-up state stops above 6 seconds this is turned on light before, the light modulating energy-saving lamp power-up initializing, the sampled signal of Working state checking circuit 145 output high level, what control program was confirmed input single-chip microcomputer 31 is the sampled signal of high level, the pulse width modulating signal of high level is handled and exported to the sampled signal of 31 pairs of high level of single-chip microcomputer, the pulse width modulating signal of high level is through the dimmer voltage signal of signaling conversion circuit 146 conversion backs to VCO half-bridge circuit 142 input high levels, at this moment, light modulating energy-saving lamp is operated in the brightest operating state, electric ballast 14 is operated in relative maximum power output, and light source is in the brightest operating state;
During 2. the brightest operating state, control program waits for that the user carries out power-down operation to mains switch 7, promptly whether the input port of monitoring single-chip microcomputer 31 has the sampled signal of input low level in real time, if there is not the sampled signal of input low level, then light modulating energy-saving lamp still is operated in the brightest operating state; If the user carries out power-down operation to mains switch 7, light modulating energy-saving lamp extinguishes, single-chip microcomputer 31 is kept the operation of single-chip microcomputer 31 internal programs in the light modulating energy-saving lamp by the discharge of storage capacitor C4, control program is when confirming the sampled signal of Working state checking circuit 145 output low levels, the sampled signal of the input port input low level of single-chip microcomputer 31, then control program changes the monitoring of the user being carried out once more the operation that powers on of mains switch 7 over to, control program judges whether carried out the operation that powers in setting-up time, promptly whether the input port of single-chip microcomputer has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the control program of light modulating energy-saving lamp quits work; If the user is to switch 7 operation that powers on, then light modulating energy-saving lamp is lighted, Working state checking circuit 145 is to the sampled signal of single-chip microcomputer 31 input high levels, then control program changes the pulse width modulation subprogram over to the sampled signal of high level is handled, and the pulse width modulating signal of output continuous gradation is to signaling conversion circuit 146, after changing, import the dimmer voltage signal of continuous gradations to VCO half-bridge circuit 142, at this moment, light modulating energy-saving lamp is operated in the continuous gradual change operating state of circulation, promptly begin by the brightest deepening gradually, again by the darkest circulation output that brightens gradually; The number of times of 31 pairs of circulation gradual changes of single-chip microcomputer is counted simultaneously;
3. in the light-source brightness progressive formation, can be at any one time carry out the power down continuous action that powers on and realize keeping this time operating light-source brightness before the power down by 7 pairs of light modulating energy-saving lamps of mains switch;
Promptly when continuous gradual change operating state, whether the input port that control program is monitored single-chip microcomputer 31 in real time has the sampled signal of input low level, if there is not the sampled signal of input low level, then light modulating energy-saving lamp still is operated in continuous gradual change operating state, when the count value of circulation gradual change reaches the default cycle-index of control program, light modulating energy-saving lamp will be operated in the brightest operating state; If the sampled signal of input low level is arranged, then control program changes interrupt service subroutine over to, and judge whether the input port of single-chip microcomputer 31 has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the control program of light modulating energy-saving lamp quits work; If the sampled signal of input high level is arranged, then the sampled signal of 31 pairs of high level of single-chip microcomputer carries out data acquisition and state locking processing, and output constant pulse width modulation signal is to signaling conversion circuit, after changing, import constant dimmer voltage signal to VCO half-bridge circuit 142, at this moment, light modulating energy-saving lamp is operated in locking bright spot operating state;
4. in locking bright spot operating state, whether the input port that control program is monitored single-chip microcomputer 31 in real time has the sampled signal of input low level, if there is not the sampled signal of input low level, then light modulating energy-saving lamp still is operated in locking bright spot operating state; If the sampled signal of input low level is arranged, then control program judges whether the input port of single-chip microcomputer 31 has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the control program of light modulating energy-saving lamp quits work; If the sampled signal of input high level is arranged, then interrupt service subroutine returns control program, returns continuous gradual change operating state.
Above-mentioned setting-up time can be arranged in 2～3 seconds scopes, and setting-up time is 2 seconds in the present embodiment.The sampled signal of Working state checking circuit 145 output high level is powered on to operate to mains switch 7 by the user and causes; The sampled signal of Working state checking circuit 145 output low levels carries out power-down operation by the user to mains switch 7 and causes.
The user can carry out the operation that power down powers on to mains switch 7 according to said process, regulates light modulating energy-saving lamp and makes it be operated in the luminance state that is fit to oneself; But in above-mentioned entire work process, light modulating energy-saving lamp all will extinguish during each mains switch 7 power down, and the power down time is when surpassing setting-up time, single-chip microcomputer 31 can reset because storage capacitor C4 discharge is tending towards exhausted and quit work in the light modulating energy-saving lamp, if user's power-on switch 7 again after the power down time surpassed 6 seconds, then light modulating energy-saving lamp will re-power initialization and bring into operation.
In the course of work of above-mentioned light modulating energy-saving lamp, the bright-dark rate of change of light source carries out match by the program that is provided with in the single-chip microcomputer 31, make progressive formation better meet the Mean Speed of human eye, make light source output brightness change evenly soft the bright dark variation of light.
Claims (10)
1, a kind of light modulating energy-saving lamp that is applicable to one-touch control, comprise lamp holder, lamp chamber and power saving fluorescent lamps, described lamp is provided with electric ballast in the chamber, be provided with current rectifying and wave filtering circuit in the described electric ballast, VCO half-bridge circuit and series resonant circuit, the input of described current rectifying and wave filtering circuit is connected with external power source by described lamp holder, the output of described current rectifying and wave filtering circuit is connected with the input of described VCO half-bridge circuit, the output of described VCO half-bridge circuit is connected with described power saving fluorescent lamps by described series resonant circuit, it is characterized in that also being provided with in the described electric ballast single-chip microcomputer treatment circuit, the input of described single-chip microcomputer treatment circuit is connected with Working state checking circuit, and the output of described single-chip microcomputer treatment circuit is connected with described VCO half-bridge circuit by signaling conversion circuit; Described Working state checking circuit output sampled signal, described single-chip microcomputer treatment circuit is handled the described sampled signal that receives, and output pulse width modulation signal, described signaling conversion circuit converts described pulse width modulating signal to level and smooth dimmer voltage signal, and described dimmer voltage signal is transfused to described VCO half-bridge circuit and is used to realize light modulation; Be preset with control program in the described single-chip microcomputer treatment circuit, make light modulating energy-saving lamp be operated in the brightest operating state, continuous gradual change operating state and locking bright spot operating state respectively according to described control program.
2, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 1, it is characterized in that described Working state checking circuit comprises first electric capacity, second electric capacity and first diode, the equal ground connection of first end of first end of described first electric capacity and described second electric capacity, second end of described second electric capacity is connected with the anode of described first diode, be provided with first resistance between second end of described first electric capacity and the negative terminal of described first diode, be provided with second resistance between first end of described first electric capacity and second end of described first electric capacity, described first electric capacity is connected with described single-chip microcomputer treatment circuit with the public connecting end of described first resistance.
3, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 2, it is characterized in that described single-chip microcomputer treatment circuit comprises single-chip microcomputer, described single-chip microcomputer connects the single-chip microcomputer power supply circuits that promising described single-chip microcomputer provides operating voltage, described single-chip microcomputer power supply circuits comprise second diode, the 3rd diode and first inductance, the first end ground connection of described first inductance, be provided with the 3rd electric capacity between second end of described first inductance and the anode of described the 3rd diode, the anode of described the 3rd diode is connected with first voltage stabilizing didoe, the anode of described first voltage stabilizing didoe is connected with first end of described first inductance, the negative terminal of described the 3rd diode is connected with the anode of described second diode and the anode of described first diode respectively, and the negative terminal of described second diode is connected with described single-chip microcomputer.
4, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 3, it is characterized in that being provided with the 4th electric capacity between the negative terminal of first end of described first inductance and described second diode, the negative terminal of described the 4th electric capacity is connected with first end of described first inductance, and the anode of described the 4th electric capacity is connected with the negative terminal of described second diode.
5, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 1, it is characterized in that described VCO half-bridge circuit comprises oscillator, described oscillator connects the oscillator power supply circuits that promising described oscillator provides operating voltage, described oscillator power supply circuits comprise the 5th electric capacity, the 6th electric capacity and second voltage stabilizing didoe, the negativing ending grounding of described the 5th electric capacity, be provided with the 4th diode between the negative terminal of the anode of described the 5th electric capacity and described second voltage stabilizing didoe, the negative terminal of described the 4th diode is connected with the anode of described the 5th electric capacity, the anode of described the 4th diode is connected with the negative terminal of described second voltage stabilizing didoe, described the 6th electric capacity connects the anode and the described oscillator of described the 4th diode, and the anode of described the 5th electric capacity is connected with the feeder ear of described series resonant circuit by the 3rd resistance.
6, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 5, it is characterized in that described series resonant circuit comprises first field effect transistor and second field effect transistor, the grid of the grid of described first field effect transistor and described second field effect transistor is connected with described oscillator respectively, the drain electrode of described first field effect transistor is connected with the feeder ear of described series resonant circuit, the source electrode of described first field effect transistor is connected with the drain electrode of described second field effect transistor, the drain electrode of described second field effect transistor is connected with described oscillator, be provided with second inductance between the drain electrode of described second field effect transistor and the described power saving fluorescent lamps, the source ground of described second field effect transistor.
7, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 5, it is characterized in that described signaling conversion circuit comprises the 5th diode and the 7th electric capacity, the anode of described the 5th diode is connected with described single-chip microcomputer, be provided with the 4th resistance between the anode of the negative terminal of described the 5th diode and described the 7th electric capacity, be provided with the 5th resistance between the negative terminal of the anode of described the 7th electric capacity and described the 7th electric capacity, the negativing ending grounding of described the 7th electric capacity, the anode of described the 7th electric capacity is connected with described oscillator.
8, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 5 is characterized in that described power saving fluorescent lamps is connected with described oscillator, and described power saving fluorescent lamps is given described oscillator with the source current signal feedback that produces.
9, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 8, it is characterized in that described control program is preset in the described single-chip microcomputer, be provided with pulse width modulation subprogram and interrupt service subroutine in the described control program, the process of described control program control light modulating energy-saving lamp work is as follows:
1. behind the light modulating energy-saving lamp power-up initializing, the sampled signal of Working state checking circuit output high level, what control program was confirmed the input single-chip microcomputer is the sampled signal of high level, the pulse width modulating signal of high level handled and exports by single-chip microcomputer to the sampled signal of high level, the pulse width modulating signal of high level is through the dimmer voltage signal of signaling conversion circuit conversion back to VCO half-bridge circuit input high level, at this moment, light modulating energy-saving lamp is operated in the brightest operating state;
During 2. the brightest operating state, whether the input port that control program is monitored single-chip microcomputer in real time has the sampled signal of input low level, if there is not the sampled signal of input low level, then light modulating energy-saving lamp still is operated in the brightest operating state; If the sampled signal of input low level is arranged, then control program judges whether the input port of single-chip microcomputer has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the control program of light modulating energy-saving lamp quits work; If the sampled signal of input high level is arranged, then control program changes the pulse width modulation subprogram over to the sampled signal of high level is handled, and the pulse width modulating signal of output continuous gradation is to signaling conversion circuit, after changing, import the dimmer voltage signal of continuous gradation to the VCO half-bridge circuit, at this moment, light modulating energy-saving lamp is operated in the continuous gradual change operating state of circulation, and simultaneously, single-chip microcomputer is counted circulation continuous gradation process;
During 3. continuous gradual change operating state, whether the input port that control program is monitored single-chip microcomputer in real time has the sampled signal of input low level, if there is not the sampled signal of input low level, then when the count value of circulation continuous gradation process does not reach the default cycle-index of control program, light modulating energy-saving lamp still is operated in continuous gradual change operating state, when the count value of circulation continuous gradation process reaches the default cycle-index of control program, light modulating energy-saving lamp will be operated in the brightest operating state; If the sampled signal of input low level is arranged, then control program changes interrupt service subroutine over to, and judge whether the input port of single-chip microcomputer has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the control program of light modulating energy-saving lamp quits work; If the sampled signal of input high level is arranged, then single-chip microcomputer carries out data acquisition and state locking processing to the sampled signal of high level, and output constant pulse width modulation signal is to signaling conversion circuit, after changing, import constant dimmer voltage signal to the VCO half-bridge circuit, at this moment, light modulating energy-saving lamp is operated in locking bright spot operating state;
4. in locking bright spot operating state, whether the input port that control program is monitored single-chip microcomputer in real time has the sampled signal of input low level, if there is not the sampled signal of input low level, then light modulating energy-saving lamp still is operated in locking bright spot operating state; If the sampled signal of input low level is arranged, then control program judges whether the input port of single-chip microcomputer has the sampled signal of input high level in setting-up time, if there is not the sampled signal of input high level, then the control program of light modulating energy-saving lamp quits work; If the sampled signal of input high level is arranged, then interrupt service subroutine returns control program, returns continuous gradual change operating state.
10, a kind of light modulating energy-saving lamp that is applicable to one-touch control according to claim 9 is characterized in that described setting-up time is 2～3 seconds; The sampled signal of described Working state checking circuit output high level is powered on to operate to mains switch by the user and causes; The sampled signal of described Working state checking circuit output low level carries out power-down operation by the user to mains switch and causes.
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