CN101815377A - Control system of fluorescent lamp and LED lamp integrated energy-saving lamp - Google Patents
Control system of fluorescent lamp and LED lamp integrated energy-saving lamp Download PDFInfo
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- CN101815377A CN101815377A CN201010145222A CN201010145222A CN101815377A CN 101815377 A CN101815377 A CN 101815377A CN 201010145222 A CN201010145222 A CN 201010145222A CN 201010145222 A CN201010145222 A CN 201010145222A CN 101815377 A CN101815377 A CN 101815377A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a control system of a fluorescent lamp and LED lamp integrated energy-saving lamp, which comprises a half bridge circuit, an LC resonance and voltage-reducing rectification circuit, a control circuit, a self-oscillating half bridge drive circuit and an LED drive circuit, wherein the control circuit selects an LED lamp or a fluorescent lamp to work by judging whether the on and off of an external power supply and the on and off interval time of the power supply are within a preset time; and the LC resonance and voltage-reducing rectification circuit supplies the power to the LED lamp and the fluorescent lamp at the same time. When a user needs high brightness, the fluorescent lamp emits light; and when the user needs low brightness, the LED lamp emits light; therefore, a dimming circuit does not need to be increased to adjust the light of the energy-saving lamp, and two sets of power supply system do not need to be used for supplying power to the LED lamp and the fluorescent lamp respectively. Therefore, the fluorescent lamp and LED lamp integrated energy-saving lamp has the advantages of energy conservation, low cost, high performance, convenient operation and simple structure.
Description
Technical field
The present invention relates to the lighting apparatus field, relate in particular to the control method and the system of a kind of fluorescent lamp and LED lamp integrated energy-saving lamp.
Background technology
At present fluorescent lamp, colour temperature advantages of higher soft with its brightness height, light is widely used in daily life, the operational environment, but because fluorescent lamp does not have dimming function, therefore when the more weak light illumination of needs, as needing before sleeping thrown light on when dimming in place such as bedroom, toilet, passage, the fluorescent lamp of prior art can't be realized the light modulation demand in these places.In order to reach above-mentioned low light level illumination purpose, prior art realizes in the following ways:
1, the additional light source of LED lamp as fluorescent lamp is installed in addition, when the needs low light level throws light on, closed fluorescent lamp, turn on the LED lamp.Shortcoming is: must build power supply and the control loop of a cover for LED lamp use in addition, and when the mains switch of fluorescent lamp and LED lamp during not at a place, also can make troubles to operation.
2, prior art also has the electricity-saving lamp that adopts some tunable optical, and shortcoming is: must increase the light modulation isolated plant in addition, and its complex structure, life-span weak point, the cost height, and first wife's ballast can not utilize again.
Therefore, the lighting source of prior art can not satisfy people's user demand, is badly in need of a kind of easy to operate, simple in structure, energy-conservation, illumination control method and system that cost is low.
Summary of the invention
Be to solve the part of supplying of prior art, the object of the present invention is to provide a kind of easy to operate, simple in structure, energy-conservation, the fluorescent lamp that cost is low and the control system of LED lamp integrated energy-saving lamp.
The control system of a kind of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp comprises:
Half-bridge circuit is used to be received from the high-frequency pulse signal that the vibration half-bridge drive circuit is exported, and by this high-frequency pulse signal DC high-voltage power supply is converted to the hf and hv pulse power supply;
LC resonance and step-down rectifying circuit, be used for hf and hv pulse power supply with the output of described half-bridge circuit and carry out behind the LC resonance, and this hf and hv pulse power supply is carried out after step-down, the rectification providing low-voltage dc power supply for led drive circuit and control circuit to fluorescent lamp provides power supply;
Control circuit is used to distinguish that the break-make of external high-voltage DC power supply and this DC high-voltage power supply disconnect, whether the on-interval time in Preset Time, produce the control signal of control led drive circuit and self-oscillation half-bridge drive circuit;
The self-oscillation half-bridge drive circuit is used for producing the high-frequency pulse signal of different frequency to drive half-bridge circuit according to the control signal of described control circuit;
Led drive circuit is used for the control signal driving LED lamp work according to described control circuit.
Preferably, the control system of above-mentioned fluorescent lamp and LED lamp integrated energy-saving lamp also comprises current rectifying and wave filtering circuit, and being used for that AC power is carried out being respectively described self-oscillation half-bridge drive circuit, described control circuit and described half-bridge circuit behind the rectifying and wave-filtering provides high-voltage DC power supply.
Preferably, above-mentioned led drive circuit is a constant-current drive circuit, is used to produce the work of the described LED lamp of constant current driven.
Preferably, above-mentioned Preset Time is 2 seconds.
Preferably, the different frequency of the high-frequency pulse signal of above-mentioned self-oscillation half-bridge driven generation comprises frequency and the luminous frequency of igniting that supplies described LC resonance and step-down rectifying circuit to drive described fluorescent lamp preheating.
The present invention compares with prior art and has the following advantages: since the control system of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp by control circuit distinguish that the break-make of high-voltage DC power supply and this DC high-voltage power supply disconnect, whether the on-interval time in Preset Time, select to control LED lamp work or fluorescent lamp operation; And produce hf and hv pulse power supply and low-voltage dc power supply respectively by LC resonance and step-down rectifying circuit, can realize that a circuit provides power supply for LED lamp and fluorescent lamp simultaneously.When the user needs higher brightness, luminous with fluorescent lamp; When the user need be than low-light level, the LED lamp of migrating is luminous, do not need to increase as prior art light adjusting circuit electricity-saving lamp is carried out light modulation to change brightness, do not need to use as prior art two cover electric power systems to be respectively the LED lamp and fluorescent lamp provides power supply yet.Therefore the control system of the fluorescent lamp of invention and LED lamp integrated energy-saving lamp have energy-conservation, cost is low, performance good, easy to operate, advantage of simple structure.
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 some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the circuit block diagram of the control system of a kind of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp;
Fig. 2 is the circuit diagram of the control system of a kind of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp.
Embodiment
For making the present invention easier to understand, the present invention is further elaborated below in conjunction with accompanying drawing, but the embodiment in the accompanying drawing does not constitute any limitation of the invention.
The control system of a kind of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp as shown in Figure 1, comprising:
Half-bridge circuit 30 is used to be received from the high-frequency pulse signal that vibration half-bridge drive circuit 60 is exported, and by this high-frequency pulse signal DC high-voltage power supply is converted to the hf and hv pulse power supply;
LC resonance and step-down rectifying circuit 40, be used for hf and hv pulse power supply with half-bridge circuit 30 output and carry out behind the LC resonance, and this hf and hv pulse power supply is carried out after step-down, the rectification providing low-voltage dc power supply for led drive circuit 70 and control circuit 50 to fluorescent lamp 90 provides power supply;
Self-oscillation half-bridge drive circuit 60 is used for producing the high-frequency pulse signal of different frequency to drive half-bridge circuit 30 according to the control signal of control circuit 50;
Led drive circuit 70 is used for control signal driving LED lamp 80 work according to control circuit 50.
Preferably, the control system of fluorescent lamp and LED lamp integrated energy-saving lamp also comprises current rectifying and wave filtering circuit 20, being used for that AC power is carried out being respectively self-oscillation half-bridge drive circuit 60, control circuit 50 and half-bridge circuit 30 behind the rectifying and wave-filtering provides high-voltage DC power supply, and the power state detection signal is provided for control circuit 50.
Since the control system of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp by control circuit 50 distinguish that the break-make of high-voltage DC power supply and this DC high-voltage power supply disconnect, whether the on-interval time in Preset Time, select 80 work of control LED lamp or fluorescent lamp 90 to work; And produce hf and hv pulse power supply and low-voltage dc power supply respectively by LC resonance and step-down rectifying circuit 40, can realize that a circuit provides power supply for LED lamp 80 and fluorescent lamp 90 simultaneously.When the user needs higher brightness, luminous with fluorescent lamp 90; When the user need be than low-light level, the LED lamp 80 of migrating is luminous, do not need to increase as prior art light adjusting circuit electricity-saving lamp is carried out light modulation to change brightness, do not need to use as prior art two cover electric power systems to be respectively LED lamp 80 and fluorescent lamp 90 provides power supply yet.Therefore the control system of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp have energy-conservation, cost is low, performance good, easy to operate, advantage of simple structure.
Preferably, led drive circuit 70 is a constant-current drive circuit, is used to produce 80 work of constant current driven LED lamp.
Preset Time can be according to system debug, and preferably, the control system of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp can be set to 2 seconds by this Preset Time.
The different frequency of the high-frequency pulse signal that preferably, self-oscillation half-bridge driven produces comprises for the frequency of LC resonance and 90 preheatings of step-down rectifying circuit 40 driving fluorescent lamp and the luminous frequency of igniting.
As shown in Figure 2, control circuit 50 is made up of two d type flip flop U1A and U1B and peripheral circuit, trigger U1A and peripheral circuit are used for judging by the voltage status that detects Vst the state of AC power input, the frequency of oscillation of its positive output end Q control self-oscillation half-bridge drive circuit 60; The break-make of the non-control led drive circuit 70 of reversed-phase output Q is controlled LED lamp 80.Trigger U1B and peripheral circuit 90 warm-up times of control fluorescent lamp when the bright state of U1A output fluorescent lamp 90 time.
As shown in Figure 2, control circuit 50 specifically comprises d type flip flop U1A, d type flip flop U1B, resistance R 8, R9, R10, R11, R12, R13, R14, R19, capacitor C 8, C9, C10, C11, diode D9, D10; DC power supply Vst is ground connection after resistance R 8 and capacitor C 10, the common port of resistance R 8 and capacitor C 10 and the coupling of the clock signal input terminal of d type flip flop U1A; Low-voltage direct signal of telecommunication Vpp is ground connection after resistance R 9, capacitor C 9, capacitor C 8 is in parallel with C9, diode D9 is connected in series the back with resistance R 10 in parallel with resistance R 9, dc signal VDD ground connection behind resistance R 11, R12 of output between resistance R 9 and the capacitor C 9, and the coupling of the reset signal input of the common port of resistance R 11 and R12 and d type flip flop U1A; The Q reversed-phase output of d type flip flop U1A is coupled with the data input pin of d type flip flop U1A and the reset signal input of d type flip flop U1B respectively by R19; The set input ground connection of d type flip flop U1A; The Q output of d type flip flop U1A is connected in series back ground connection successively with resistance R 13 and capacitor C 11, in parallel with resistance R 13 after diode D10 connects with resistance R 14, and resistance R 13 is coupled with the common port of capacitor C 11 and the set input of d type flip flop U1B; The data input pin of d type flip flop U1B and clock signal input terminal ground connection; The Q reversed-phase output of d type flip flop U1B and the coupling of the input of led drive circuit 70; The Q output of d type flip flop U1B and the coupling of second input of self-oscillation half-bridge drive circuit 60; The Q output of d type flip flop U1A and the coupling of the first input end of self-oscillation half-bridge drive circuit 60.
Above-mentioned d type flip flop U1A and U1B can be the CD4013 chip, and certainly, two triggers of the present invention also can adopt the chip of other same types.Above-mentioned control circuit 50 also can adopt other chip circuits to realize.
Current rectifying and wave filtering circuit 20 comprises the EMC filter circuit of being made up of inductance L 1, resistance R 1, capacitor C 1, the bridge rectifier that diode D1, D2, D3, D4 form, the DC filtering circuit that capacitor C 2, C3 and diode D5 form, alternating current obtains more stable high-voltage DC power supply behind current rectifying and wave filtering circuit 20, for half-bridge circuit 30 work; Go up filament, resistance R 5, diode D8 provide initialization voltage and reflection power state signal for the bridge drive circuit Vst by HV, resistance R 4, fluorescent lamp 90Lamp simultaneously.
When input DRV_LED is high level (greater than the conducting voltage of triode Q3), triode Q3 conducting, LED has electric current to flow through; When the electric current I of passing through when pressure drop V=I*R7 is greater than the conducting voltage of triode Q4 on resistance R 7, triode Q4 enters the amplification region, triode Q3 base voltage reduces, thereby Control current I reduces, so just can guarantee electric current I ≈ Vbe/R7 by LED, thereby reach constant current, stablize and the life-span to guarantee luminosity such as LED.
When DRV_LED was low level, triode Q3 and triode Q4 all ended, thereby the LED no current passes through.
As shown in Figure 2, particularly, self-oscillation half-bridge drive circuit 60 is made up of self-oscillation half-bridge driver U2 and peripheral circuit, and wherein self-oscillation half-bridge driver U2 is the IR2153 chip, certainly, also can adopt the chip of other same types.
Particularly, self-oscillation half-bridge drive circuit 60 comprises resistance R 15, R16, R17, R18, triode Q5, Q6, capacitor C 12, C13, C14, C15, C16, C17, diode D11, D12, D13, D14, D15, IR2153 chip.Particularly, the first input end of self-oscillation half-bridge drive circuit 60 after resistance R 15 with the coupling of the base stage of triode Q5, the grounded emitter of Q5, the collector electrode of Q5 is connected in series back ground connection successively with capacitor C 12 and capacitor C 14, the CT input coupling of the common port of capacitor C 12 and capacitor C 14 and IR2153 chip, resistance R 17 is connected with the common port of capacitor C 12 and capacitor C 14, the RT input of IR2153 chip respectively, the input of diode D11 is connected with the emitter of triode Q5, and the output of D11 is connected with the collector electrode of triode Q5; Second input of self-oscillation half-bridge drive circuit 60 after resistance R 16 with the coupling of the base stage of triode Q6, the grounded emitter of Q6, the collector electrode of Q6 is connected through the common port of capacitor C 13 with capacitor C 12 and C14, the input of diode D12 is connected with the emitter of triode Q6, and the output of D12 is connected with the collector electrode of triode Q6; The COM end ground connection of IR2153 chip; DC power supply is connected with the VCC end of IR2153 chip, and the input of diode D13 is connected with DC power supply, output is connected with the VB end of IR2153 chip; The two ends of capacitor C 16 are connected with the output of diode D13 and the VS end of IR2153 chip respectively, DC power supply is ground connection after capacitor C 15, DC power supply is ground connection behind resistance R 18, diode D14 output, D14 input, D15 output, D15 input, and capacitor C 17 two ends are connected with the VS end of D14 input and IR2153 chip respectively; The HO end of IR2153 chip and LO end are exported the pulse signal of out of phase respectively.
Wherein, self-oscillation half-bridge driver U2, diode D13, capacitor C 16 are formed half-bridge drive circuit, and its output HO, LO promote half-bridge circuit 30 work.Capacitor C 17, diode D14, D15, R18 form power supply supply circuit, and its power supply is replenished by this part circuit after this partial circuit work.Capacitor C 15 is a filter capacitor.
Self-oscillation half-bridge driver U2, resistance R 17, capacitor C 12, C13, C14 form self-oscillating circuit, and its frequency of oscillation sees the following form:
| First input end | Second input | The IR2153 operating frequency | Remarks |
| ??0 | ??0 | ??f0≈1/[1.38(R17+75)*C14] | The work of LED lamp |
| ??0 | ??1 | ??F≈1/[1.38(R17+75)*(C14+C13)] | This state can |
| ??1 | ??0 | ??f1≈1/[1.38(R17+75)*(C14+C12)] | The fluorescent lamp preheating |
| ??1 | ??1 | ??f2≈1/[1.38(R17+75)*(C14+C13+C12)] | The fluorescent lamp operate as normal |
0: expression first input end/second input is a low level, is the signal less than 0.3V in the circuit.
1: expression first input end/second input is a high level, is the signal greater than 0.6V in the circuit.
Half-bridge circuit 30 is made up of field effect transistor Q1, field effect transistor Q2, concrete connected mode as shown in Figure 2, the drain coupled of the source electrode of field effect transistor Q1 and field effect transistor Q2, the drain electrode of Q1 is connected with the DC power supply of the output of current rectifying and wave filtering circuit 20, and the HO end of IR2153 chip is connected with the grid of Q1 and the grid of Q2 respectively with the LO end.
LC resonance and step-down rectifying circuit 40 are formed the LC resonant network by inductance L 2, capacitor C 6 and capacitor C 7, are used to produce the high frequency ac signal that satisfies fluorescent lamp 90 igniting and work, driving fluorescent lamp 90.When circuit working during in the bright state of LED lamp 80, LC resonance and step-down rectifying circuit 40 be the off-resonance point far away, can not produce high pressure, and fluorescent lamp 90 can not enter operating state; When circuit begins to enter fluorescent lamp 90 and enters warm-up phase, pre-heat frequency off-resonance point, LED lamp 80 extinguishes, circuit energy is gathered in filament and carries out preheating, when LC resonance and step-down rectifying circuit 40 enter fluorescent lamp 90 working stages, operating frequency is rapidly near resonance frequency, and resonance produces high-tension ignition fluorescent lamp 90 until fluorescent lamp 90 operate as normal.
Wherein, inductance L 2 auxiliary winding Ls1, Ls2, diode D6, D7, resistance R F, capacitor C 4, C5 and voltage-stabiliser tube Z1 form step-down rectifying circuit, inductance L 2 auxiliary winding Ls1, the last generation of Ls2 induced potential when circuit working, by diode D6 and diode D7 full-wave rectification, thereby reach the purpose of step-down.Resistance R F wherein, voltage-stabiliser tube Z1 are used for pressure limiting control, prevent that forming instantaneous high pressure when fluorescent lamp 90 igniting damages other circuit by auxiliary winding Ls1, Ls2.Capacitor C 4, C5 are used for filtering.
The concrete course of work is: after powering on for the first time, AC power gives half-bridge circuit 30 power supplies after diode D5, capacitor C 3 filtering through diode D1, D2, D3, the D4 rectification, a tunnel of current rectifying and wave filtering circuit 20; Another road obtains the vibration chip for driving U2 power input of direct voltage Vst to self-oscillation half-bridge drive circuit 60 after the Lamp of resistance R 4, R5 and fluorescent lamp 90 goes up filament, diode D8.After direct voltage Vst surpasses the starting resistor of chip U2, the work of chip U2 starting oscillation, its output signal HO, LO carry out power amplification through power tube Q1, the Q2 of half-bridge circuit 30, its output VS is leaded up to capacitor C 17, diode D15, D14, resistance R 18 to the U2 electric energy supplement, makes U2 energy steady operation; Another road provides the loop by inductance L 2, capacitor C 6, C7 and fluorescent lamp 90 filaments of LC resonance and step-down rectifying circuit 40, the circuit operate as normal, the main winding of L2 obtains the D' Arsonval current power supply by coupling to auxiliary winding and forms full-wave rectifying circuit through diode D6, D7, DC power supply+Vpp when LED lamp 80 provides work, another road of+Vpp is connected to control circuit 50 and obtains voltage VDD by diode D9, resistance R 10, capacitor C 9; Voltage VDD one tunnel gives chip U1 power supply, another road provides a reset signal for trigger U1A by resistance R 11 and resistance R 12, U1A resets, its positive output end Q output low level, the non-output high level of reversed-phase output Q, make the Q3 conducting of led drive circuit 70, the LED1～LED4 of LED lamp 80 lights.The resistance R 7 of led drive circuit 70, transistor Q3 form the constant-current control circuit 50 of LED lamp 80, for LED provides constant DC stream, satisfy the condition of LED operate as normal.
After outage, the voltage of U2 feeder ear Vst reduces rapidly owing to can not get replenishing of AC power, simultaneously again because " energy storage " of capacitor C 9 effect, U1A is maintained the original state, in this Preset Time, as connecting alternating current once more, power supply Vst becomes high level from low level, and a triggering level is provided for the clock signal input terminal CLK of U1A by resistance R 8 and capacitor C 10, thereby make trigger U1A counter-rotating, its positive output end Q uprises, triode Q5 conducting, chip U2 (IR2153) works in the f1 frequency, and (f1＜f0), fluorescent lamp 90 begins to enter the pipeline start up by preheating state; The non-step-down of reversed-phase output Q of U1A makes the Q3 remain off state of led drive circuit 70, and LED lamp 80 can not brighten.Because the delayed action of resistance R 13 and capacitor C 11, the set input incoming level of the trigger U1B that (is generally 400～2000 milliseconds) through after a while transfers high level to, make the positive output end Q of trigger U1B export high level, triode Q6 conducting this moment, chip U2 works in f2 frequency (f2＜f1), fluorescent lamp 90 begins to enter the ignition operation state, and after igniting, fluorescent lamp 90 is normally lighted.
Therefore, in the default time, carry out the action of cutting off the power supply → power on continuously, can realize LED lamp 80 and fluorescent lamp 90 alternations.Particularly, this Preset Time is the time of capacitor C 9 charging back discharges.As a kind of execution mode of the control system of a kind of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp, this scheduled time can be set to 2 seconds, can certainly adjust as required Preset Time is set.
Because the work of fluorescent lamp 90 makes dc signal Vpp be output as low level, and then the VDD output low level, the reset signal input input low level of first trigger, the Q output output high level of d type flip flop U1A.
When fluorescent lamp 90 is bright, deenergization again, re-power, dc signal Vst is high, for the clock signal input terminal of d type flip flop U1A provides a triggering level, make the output state counter-rotating of d type flip flop U1A, the positive output end Q output low level of U1A, Q reversed-phase output output high level, because the output of d type flip flop U1B is subjected to the output control of d type flip flop U1A, therefore, the Q output output low level of d type flip flop U1B, the Q reversed-phase output output high level of d type flip flop U1B is because the Q reversed-phase output of d type flip flop U1B is connected with the input of led drive circuit 70, so this moment, the input of led drive circuit 70 was a high level, led drive circuit 70 work.Chip I R2153 works in the f0 frequency, and this moment, fluorescent lamp 90 did not work.
Turn to by LED lamp 80 is bright that fluorescent lamp 90 is luminous to be controlled according to foregoing mode.Therefore, the control system of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp only need be by the break-make of control power supply and disconnect continuously, blanking time of energized, promptly can realize selection to fluorescent lamp 90 and 80 alternations of LED lamp by control to a mains switch; And produce hf and hv pulse power supply and low-voltage dc power supply respectively by LC resonance and step-down rectifying circuit 40, can realize that a circuit provides power supply for LED lamp 80 and fluorescent lamp 90 simultaneously.When the user needs higher brightness, luminous with fluorescent lamp 90; When the user need be than low-light level, the LED lamp 80 of migrating was luminous, therefore the control system of fluorescent lamp of the present invention and LED lamp integrated energy-saving lamp have energy-conservation, cost is low, performance good, easy to operate, advantage of simple structure.
The above is a preferred implementation of the present invention; certainly can not limit the present invention's interest field with this; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvement and change, these improvement and change also are considered as protection scope of the present invention.
Claims (5)
1. the control system of fluorescent lamp and LED lamp integrated energy-saving lamp is characterized in that, comprising:
Half-bridge circuit is used to be received from vibration half-bridge drive circuit output high-frequency pulse signal, and by this high-frequency pulse signal DC high-voltage power supply is converted to the hf and hv pulse power supply;
LC resonance and step-down rectifying circuit, be used for hf and hv pulse power supply with the output of described half-bridge circuit and carry out behind the LC resonance, and this hf and hv pulse power supply is carried out after step-down, the rectification providing low-voltage dc power supply for led drive circuit and control circuit to fluorescent lamp provides power supply;
Control circuit is used to distinguish that the break-make of external high-voltage DC power supply and this DC high-voltage power supply disconnect, whether the on-interval time in Preset Time, produce the control signal of control led drive circuit and self-oscillation half-bridge drive circuit;
The self-oscillation half-bridge drive circuit is used for producing the high-frequency pulse signal of different frequency to drive half-bridge circuit according to the control signal of described control circuit;
Led drive circuit is used for the control signal driving LED lamp work according to described control circuit.
2. the control system of fluorescent lamp according to claim 1 and LED lamp integrated energy-saving lamp, it is characterized in that, the control system of described fluorescent lamp and LED lamp integrated energy-saving lamp also comprises current rectifying and wave filtering circuit, and being used for that AC power is carried out being respectively described self-oscillation half-bridge drive circuit, described control circuit and described half-bridge circuit behind the rectifying and wave-filtering provides high-voltage DC power supply.
3. the control system of fluorescent lamp according to claim 1 and LED lamp integrated energy-saving lamp is characterized in that described led drive circuit is a constant-current drive circuit, is used to produce the work of the described LED lamp of constant current driven.
4. the control system of fluorescent lamp according to claim 1 and LED lamp integrated energy-saving lamp is characterized in that, described Preset Time is 2 seconds.
5. the control system of fluorescent lamp according to claim 1 and LED lamp integrated energy-saving lamp, it is characterized in that the different frequency of the high-frequency pulse signal that described self-oscillation half-bridge driven produces comprises frequency and the luminous frequency of igniting that supplies described LC resonance and step-down rectifying circuit to drive described fluorescent lamp preheating.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102111945A (en) * | 2011-01-25 | 2011-06-29 | 中山市欧普照明股份有限公司 | Novel double-sampling abnormal protection circuit electronic ballast |
| CN102438372A (en) * | 2011-12-14 | 2012-05-02 | 孙少珍 | Intelligent lamp circuit and control method thereof |
| CN102448233A (en) * | 2012-01-10 | 2012-05-09 | 杨玉涌 | Combination lamp of LED (light-emitting diode) lamp and energy-saving lamp |
| CN102595751A (en) * | 2012-02-21 | 2012-07-18 | 胡志强 | Double-line intelligent dimming ballast |
| CN102711305A (en) * | 2012-06-21 | 2012-10-03 | 宁波三杰灯业有限公司 | Dual-purpose energy saving lamp |
| CN102752904A (en) * | 2011-04-19 | 2012-10-24 | 薛伯钱 | Regulated power supply for light emitting diode (LED) energy saving lamps |
| CN102843818A (en) * | 2011-06-20 | 2012-12-26 | 欣骏科技股份有限公司 | Residual light circuit of light-emitting diode |
| WO2013189012A1 (en) * | 2012-06-18 | 2013-12-27 | Zou Gaodi | Lighting control device for led and fluorescent lamp |
| CN106132027A (en) * | 2016-08-16 | 2016-11-16 | 胡志强 | Two-wire intelligent LED dimming power source |
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