CN101861038A - Simple dimmable energy-saving lamp - Google Patents
Simple dimmable energy-saving lamp Download PDFInfo
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- CN101861038A CN101861038A CN 201010145714 CN201010145714A CN101861038A CN 101861038 A CN101861038 A CN 101861038A CN 201010145714 CN201010145714 CN 201010145714 CN 201010145714 A CN201010145714 A CN 201010145714A CN 101861038 A CN101861038 A CN 101861038A
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Abstract
The invention discloses a simple dimmable energy-saving lamp which comprises an energy-saving lamp and a light modulator connected on the energy-saving lamp. The simple dimmable energy-saving lamp is characterized in that the inside of the light modulator is provided with a compatible circuit composed of resistors and capacitors, a bridge rectifier circuit composed of four diodes, a filter circuit used for inhibiting interfering signals with higher frequency, a dual-pump circuit used for maintaining continuous current and an inverter output circuit, wherein the above circuits are connected together in turn and the energy-saving lamp is electrically connected with the inverter output circuit. Compatibility design can be performed according to the characteristics of the light modulator through the circuit of the energy-saving lamp of the invention so that the energy-saving lamp can be dimmable; and the electric circuit of the invention is simple, the operation is reliable, the cost is low, the energy-saving lamp is easy to produce, and the energy-saving lamp can adapt to various front phase shedding universal light modulators and back phase shedding universal light modulators.
Description
Technical field
The present invention relates to the fluorescent lighting technical field, relate to a kind of electricity-saving lamp of tunable optical more specifically.
Background technology
Exchange self-ballasted fluorescent lamp (being commonly called as electricity-saving lamp), because of its luminance height, excellent properties such as long service life and caloric value are low has been widely used in various illumination occasions.But exist can not light modulation shortcoming, and regulation must be printed on " can not light modulation " on the lamp body of common energy-saving lamp or packing sign is warned.The dimming mode of electronic dimming switch roughly has following two kinds because at present: 1, carry out the forward position with bidirectional triode thyristor and trigger phase modulation; 2, carrying out the back with MOS-FET pipe or IGBT triggers along phase modulation; Above dimmer, all be self not with working power, their work will be by flowing through its electric current, and do not reach minimumly when keeping current requirements when the electric current that flows through, dimmer just can't operate as normal.Because the input current of general electricity-saving lamp is discontinuous, in the light modulation process, can make the undesired or damage of electricity-saving lamp work thereby cause, make dimming function can't realize at all.High speed development along with electronic technology, adopting more method at present is the change realization light modulation that the cut signal of power supply is become the electricity-saving lamp operating frequency by dimmer, use a plurality of IC chips to realize this conversion, or adopted the light modulation special chip of high integration.These products, because the specification requirement height, the cost of manufacture height is difficult for popularizing.
Summary of the invention
Purpose of the present invention is exactly that a kind of not only circuit that provides for the deficiency that solves prior art is simple, reliable operation, and cost is low, is easy to make, and the simple dimmable energy-saving lamp of the multiple general dimmer of cut before can be adaptive, back cut.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of simple dimmable energy-saving lamp, comprise electricity-saving lamp and connected dimmer, it is characterized in that: be provided with the bridge rectifier that is connected and composed by four diodes, filter circuit and the inverter output circuit that suppresses the interference signal of upper frequency in the described dimmer, the input of inverter output circuit connects the dual-pump circuit of mainly being made up of electric capacity and diode that makes its input continuous operation electric current.
As further specifying of such scheme, described energy saving lamp body adopts low pipe to press fluorescent tube.
Described filter circuit connects bridge rectifier, and filter circuit mainly is made up of diode D1, capacitor C 2, inductance L 1, capacitor C 3.
Described inverter output circuit comprises the half-bridge inversion circuit that is made of transistor Q1, Q2, the biasing circuit of being made up of resistance R 8, R9, R7, diode D6, D9, capacitor C 10, C11 and the half-bridge circuits for triggering that are made of resistance R 2, R3, R4, R5, capacitor C 9, bidirectional diode DB3, make the half-bridge circuit starting of oscillation, and carry out phase control by magnetic ring transformer T1.
Described dual-pump circuit is the smoothing circuit of half-bridge inversion circuit working power, is formed by connecting by capacitor C 4, C5, C6, C7 and diode D2, D3, D4, D5, D6; Described capacitor C 6 is connected in series with diode D2, and diode D3 is connected in series with capacitor C 7, and the emitter of transistor Q1 is by the collector series connection of resistance R 6 with transistor Q2, and three groups of coils of transformer T1 connect the input of transistor Q1, Q2 and electricity-saving lamp respectively.
It is half-bridge driven choke induction L2B that the input of described electricity-saving lamp is provided with, and level is around inductance L 2C and L2A, as the preheating of filament secondarily.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
1, the present invention adopts damping resistance and the RC buffer circuit of setting up the cut interference that reduces dimmer between dimmer and the electricity-saving lamp, circuit is simple, reliable operation, cost is low, be easy to make, lamp power can be from several watts to tens watts, even go up hectowatt, dimming scope 10～100%, every performance meets the requirement of relevant criterion.
2, when guaranteeing dimmer work the characteristic of keeping electric current to be arranged, require the electricity-saving lamp input at any time electric current will be arranged, this just requires the output of energy-saving lamp circuit high frequency feedback will be arranged to inlet circuit, general low-power factor electricity-saving lamp, only moment electric current is arranged just in the electrolytic capacitor charging, all the other times do not have electric current, so that dimmer can't operate as normal, this is to this problem, the present invention has adopted dual-pump circuit, it also is the smoothing circuit of half-bridge circuit working power, this circuit is the angle of flow of broadening electricity-saving lamp input electric current effectively, have more " filling out paddy " effect, the electric current of input is continued, guaranteed the reliable and stable of dimmer switch work.
Description of drawings
Fig. 1 is a light adjusting circuit schematic diagram of the present invention.
Description of reference numerals: 1, compatble circuit, 2, bridge rectifier 3, filter circuit 4, dual-pump circuit 5, inverter output circuit
Embodiment
As shown in Figure 1, the present invention is a kind of simple dimmable energy-saving lamp, comprise electricity-saving lamp and light adjusting circuit, be provided with the bridge rectifier 1 that the compatble circuit that is made of resistance and electric capacity, four diodes connect and compose, filter circuit 2, dual-pump circuit 3, the inverter output circuit 4 that suppresses the interference signal of upper frequency in this light adjusting circuit.Filter circuit 2 mainly is made up of diode D1, capacitor C 2, inductance L 1, capacitor C 3, prevents that the high fdrequency component of inverter from causing conducted interference; Inverter output circuit 4 comprises the half-bridge inversion circuit that is made of transistor Q1, Q2, the biasing circuit of being made up of resistance R 8, R9, R7, diode D6, D9, capacitor C 10, C11 and the half-bridge circuits for triggering that are made of resistance R 2, R3, R4, R5, capacitor C 9, bidirectional diode DB3, make the half-bridge circuit starting of oscillation, and carry out phase control by magnetic ring transformer T1.Dual-pump circuit 3 is made up of capacitor C 4, C5, C6, C7 and diode D2, D3, D4, D5, D6, it is the smoothing circuit of half-bridge circuit working power, this circuit is the angle of flow of broadening electricity-saving lamp input electric current effectively, in it is that D4 separates C5, have more " filling out paddy " effect, the electric current of input is continued, to guarantee the reliable and stable of dimmer switch work.Polar capacitor C6 is connected in series with diode D2, and diode D3 is connected in series with polar capacitor C7, and the emitter of transistor Q1 is by the collector series connection of resistance R 6 with transistor Q2, and three groups of coils of transformer T1 connect transistor Q1, Q2 and output circuit respectively; Between the base stage of transistor Q1 and the emitter and be connected to capacitor C 10, diode D8, base stage connects transformer T1 by resistance R 8; Between the base stage of transistor Q2 and the emitter and be connected to capacitor C 11, diode D9, base stage connects magnetic ring transformer T1 by resistance R 9.
Operation principle of the present invention: change half-bridge inverter supply power voltage dimming mode, be embodied in electric main behind dimmer, be input to the input of dimmable energy-saving lamp circuit, through damping resistance F1 and absorption circuit C1R1, carry out full-wave rectification by full-bridge BR1, D1, C2, C3, L1 be for EMC set, the high fdrequency component that prevents inverter causes conducted interference, Q1, Q2 is typical half-bridge inversion circuit, R8, R9, R7, D6, D9, C10, C11 is a biasing circuit, R2, R3, R4, R5, C9, DB3 is the circuits for triggering of half-bridge, makes the half-bridge circuit starting of oscillation, and carries out phase control by magnetic ring transformer T1.
C4, C5, C6, C7 and D2, D3, D4, D5, D6 are dual-pump circuits, it also is the smoothing circuit of half-bridge circuit working power, this circuit is the angle of flow of broadening electricity-saving lamp input electric current effectively, in it is that D4 separates the pass with C5, has more " filling out paddy " effect, and the electric current of input is continued, guaranteed the reliable and stable of dimmer work, this point is very important, and general electricity-saving lamp can not light modulation, and main cause just goes out here.
L2B is the choke induction of half-bridge driven to fluorescent tube, and level as the preheating of filament, helps the stability of light modulation and the life-span of prolongation lamp around L2C and L2A secondarily.
When the present invention is connected with electricity-saving lamp at dimmer, will add compatble circuit between the two, because the output of dimmer is connected to inductance, capacity cell, the electricity-saving lamp input also is connected to inductance, electric capacity, when dimmer directly is connected with electricity-saving lamp, easily produce vibration, make the electricity-saving lamp can't operate as normal; Only seal in damping resistance, incorporate the RC buffer circuit into, reduce the cut of dimmer and disturb, these compatble circuit elements can be added on the input circuit of electricity-saving lamp.When guaranteeing dimmer work the characteristic of keeping electric current will be arranged, require the electricity-saving lamp input at any time electric current will be arranged, this just requires the output of energy-saving lamp circuit high frequency feedback will be arranged to inlet circuit.General low-power factor electricity-saving lamp only just has electric current in electrolytic capacitor charging moment, and all the other times do not have electric current, so that dimmer can't operate as normal.The fluorescent tube of selecting low pipe to press is done dimmable energy-saving lamp, can expand dimming scope.The filament of fluorescent lamp has preheating, is convenient to the startup of fluorescent tube, also helps the stable of light modulation.
Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (7)
1. simple dimmable energy-saving lamp, comprise electricity-saving lamp and connected dimmer, it is characterized in that: the bridge rectifier that the compatble circuit that mainly is made of resistance and electric capacity, four diodes connect and compose, continuous dual-pump circuit and the inverter output circuit of filter circuit, holding current that suppresses the interference signal of upper frequency are set in the described light modulating energy-saving lamp, and electricity-saving lamp is electrically connected with inverter output circuit.
2. simple dimmable energy-saving lamp according to claim 1 is characterized in that: described energy saving lamp body adopts low pipe to press fluorescent tube.
3. simple dimmable energy-saving lamp according to claim 1 is characterized in that: described filter circuit connects bridge rectifier, and filter circuit mainly is made up of diode D1, capacitor C 2, inductance L 1, capacitor C 3.
4. simple dimmable energy-saving lamp according to claim 1, it is characterized in that: described inverter output circuit comprises the half-bridge inversion circuit that is made of transistor Q1, Q2, the biasing circuit of being made up of resistance R 8, R9, R7, diode D6, D9, capacitor C 10, C11 and the half-bridge circuits for triggering that are made of resistance R 2, R3, R4, R5, capacitor C 9, bidirectional diode DB3, make the half-bridge circuit starting of oscillation, and carry out phase control by magnetic ring transformer T1.
5. simple dimmable energy-saving lamp according to claim 1 is characterized in that: described dual-pump circuit is the smoothing circuit of half-bridge inversion circuit working power, is formed by connecting by capacitor C 4, C5, C6, C7 and diode D2, D3, D4, D5, D6.
6. simple dimmable energy-saving lamp according to claim 5, it is characterized in that: described capacitor C 6 is connected in series with diode D2, diode D3 is connected in series with capacitor C 7, the emitter of transistor Q1 is by the collector series connection of resistance R 6 with transistor Q2, and three groups of coils of transformer T1 connect the input of transistor Q1, Q2 and electricity-saving lamp respectively.
7. simple dimmable energy-saving lamp according to claim 1 is characterized in that: the input of described electricity-saving lamp is provided with half-bridge driven choke induction L2B, and level is around inductance L 2C and L2A, as the preheating of filament secondarily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010145714 CN101861038A (en) | 2010-04-09 | 2010-04-09 | Simple dimmable energy-saving lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010145714 CN101861038A (en) | 2010-04-09 | 2010-04-09 | Simple dimmable energy-saving lamp |
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| CN101861038A true CN101861038A (en) | 2010-10-13 |
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| CN 201010145714 Pending CN101861038A (en) | 2010-04-09 | 2010-04-09 | Simple dimmable energy-saving lamp |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0319003A2 (en) * | 1987-12-01 | 1989-06-07 | Dorit Erzmoneit | Supply circuit for a low or high pressure discharge lamp, a mercury vapour lamp or the like |
| CN2361053Y (en) * | 1998-06-17 | 2000-01-26 | 吴曾谟 | Light regulatable compact energy saving fluorescent lamp |
| CN2870379Y (en) * | 2006-02-10 | 2007-02-14 | 杨建华 | Electronic ballast for fluorescent lamp |
| CN101339884A (en) * | 2008-07-31 | 2009-01-07 | 横店得邦电子有限公司 | Cold-starting low-voltage fluorescent lamp |
-
2010
- 2010-04-09 CN CN 201010145714 patent/CN101861038A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0319003A2 (en) * | 1987-12-01 | 1989-06-07 | Dorit Erzmoneit | Supply circuit for a low or high pressure discharge lamp, a mercury vapour lamp or the like |
| CN2361053Y (en) * | 1998-06-17 | 2000-01-26 | 吴曾谟 | Light regulatable compact energy saving fluorescent lamp |
| CN2870379Y (en) * | 2006-02-10 | 2007-02-14 | 杨建华 | Electronic ballast for fluorescent lamp |
| CN101339884A (en) * | 2008-07-31 | 2009-01-07 | 横店得邦电子有限公司 | Cold-starting low-voltage fluorescent lamp |
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Application publication date: 20101013 |