CN201550348U - Stepless light dimming device of energy-saving lamp - Google Patents
Stepless light dimming device of energy-saving lamp Download PDFInfo
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- CN201550348U CN201550348U CN2009201473539U CN200920147353U CN201550348U CN 201550348 U CN201550348 U CN 201550348U CN 2009201473539 U CN2009201473539 U CN 2009201473539U CN 200920147353 U CN200920147353 U CN 200920147353U CN 201550348 U CN201550348 U CN 201550348U
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Abstract
The utility model relates to a stepless light dimming device of an energy-saving lamp, which comprises a power factor correcting controller, an electromagnetic interference (EMI) circuit, a bridge type rectifying circuit, a fixed voltage circuit, a voltage increasing and reducing control circuit, a flyback circuit and a voltage feedback compensation circuit. An input end of the voltage feedback compensation circuit is connected with alternating current and provided with a power switch, the power switch is additionally provided with a variable resistor, an output end of the voltage feedback compensation circuit is connected with an energy-saving lamp holder, voltage amplitude of the output end can be changed by means of changing resistance value of the variable resistor so as to lead the lamp to achieve a light dimming function on conditions that a user does not need to replace an original energy-saving lamp, and energy-saving lamp power factor (PF) value can be improved to 98% and total harmonic distortion (THD) value can be reduced below 10% by aid of the stepless light dimming device of the energy-saving lamp. The stepless light dimming device can be changed along with brightness, not only saves energy, but also prolongs service life of the lamp. The user can optically dim brightness of an energy lamp tube within a full brightness range from 5% to 100%. In addition, the stepless light dimming device can dim light of energy-saving lamps in markets without limitation of utilizing light dimmable energy-saving lamps.
Description
Technical field
The utility model relates to light modulating device, the particularly a kind of electricity-saving lamp section of nothing light modulating device.
Background technology
The luminosity of conventional bulb is mainly determined by the size of current of input bulb, and have manufacturers design to go out the conventional bulb of brightness-adjusting, it utilizes an interchange dimmer earlier the AC power of civil power input to be carried out exporting a phase modulation AC power behind the phase modulation, the user can utilize set control piece on this interchange dimmer to control the phase place that exchanges dimmer modulation AC power, make and pass that bulb is obtained the phase modulation AC power and shinny, because the phase modulation AC power that the interchange dimmer is exported is behind integration, the AC power of resulting voltage ratio civil power input is little, the electric current of therefore input biography bulb also diminishes relatively, thereby the brightness of conventional bulb is reduced; Otherwise as if the control piece on this interchange dimmer of operation the phase modulation AC power is tuned as, behind integration, the AC power of resulting voltage ratio civil power input is big, and the electric current of input conventional bulb also becomes greatly relatively, and the brightness of conventional bulb is improved.
But weak point in useful life because of conventional bulb, and consumed power is higher, so the market is released electricity-saving lamp and replaced conventional bulb, yet the type of drive of electricity-saving lamp and conventional bulb differ widely so above-mentioned interchange dimmer and not being suitable on the electricity-saving lamp, though, electricity-saving lamp is compared to comparatively power saving of conventional bulb, and the trend that replaces conventional bulb is arranged, but because the power coefficient of electricity-saving lamp between 55%-60%, total harmonic wave (THD) is more than 100%, still has the space of improvement on reality is used;
In view of this, this case creator is through continuous research and experiment, and provide a kind of electricity-saving lamp section of nothing light modulating device, it has the dimmer that power coefficient is proofreaied and correct (Power Factor Correction), and is not only energy-conservation, can reduce quick switching electricity-saving lamp number of times again, utilize light regulating technology the brightness of height illumination to be dropped to the brightness of low illumination, and improve electricity-saving lamp power coefficient (PF) value and reach 98%, and make total harmonic wave (THD) value below 10%, and reach the effect of saving the energy.
Summary of the invention
The purpose of this utility model is that the energy loss that solves traditional brightness-adjusting incandescent lamp is serious, and the problem of the inapplicable common energy-saving lamp of existing interchange dimmer.
For achieving the above object, the utility model provides a kind of electricity-saving lamp section of nothing light modulating device, formed by a power coefficient correcting controller, an electromagnetic interference circuit, a bridge rectifier, certain voltage circuit, a buck control circuit and flyback circuit, a Voltage Feedback compensating circuit, wherein
This power coefficient correcting controller connects this fixed voltage circuit, receive the output signal of this fixed voltage circuit, this power coefficient correcting controller connects this compensating circuit again, be connected this power coefficient correcting controller with this buck control circuit with flyback circuit one end again, the output signal of this fixed voltage circuit is handled through this power coefficient correcting controller, again output control one power transistor;
One end of this electromagnetic interference (EMI) circuit connects AC power, and the other end at this electromagnetic interference (EMI) circuit is provided with this bridge rectifier again;
This bridge rectifier connects this electromagnetic interference (EMI) circuit, becomes pulsating dc voltage to deliver to an input capacitance ac voltage rectifier;
This fixed voltage circuit is connected with this bridge rectifier, this buck control circuit and flyback circuit, this power coefficient correcting controller, and the direct current power supply of power coefficient correcting controller is provided;
This buck control circuit and flyback circuit, it connects fixed voltage circuit and power coefficient correcting controller, this buck control circuit provides the buck pattern to adjust voltage, and use the flyback circuit that the ground connection of input and output is isolated, and utilize the flyback circuit to transfer the energy to output, by this can the ground wire of output and input is isolated, to avoid interactive interference;
This Voltage Feedback compensating circuit is used for detecting the output voltage values on the electricity-saving lamp, and feeds back to the power coefficient correcting controller with the optical coupler conducting, uses to reach compensation effect;
The beneficial effects of the utility model are to provide carries out light modulation to commercially available electricity-saving lamp, promptly needn't change electricity-saving lamp originally and just can reach dimming function, the utility model adopts has the dimmer that power coefficient is proofreaied and correct (PowerFactor Correction), not only energy-conservation, can reduce quick switching electricity-saving lamp number of times again, utilize light regulating technology the brightness of height illumination to be dropped to the brightness of low illumination, reach bright entirely (general lighting), duskiness (mini light night) is saved the energy and is prolonged the electricity-saving lamp life-span, it can replace the energy loss problem of traditional type incandescent lamp and use energy-saving lampholder (E27) type and art lamp, standard lamp, the purposes of desk lamp or the like is done combination, can reach the illumination of 5%-100%.
It adopts power coefficient correction (PFC) IC to improve its power coefficient and total harmonic wave (THD), make when electricity-saving lamp is the brightest, power coefficient (PF) is more than 98% and total harmonic wave (THD) below 10%, thus, no matter be public situation, restaurant, family, public place of entertainment lock, the consumer utilizes the utility model to adjust the brightness that voltage swing changes electricity-saving lamp arbitrarily according to occasion, reaches the environment space of situation on the one hand, reaches the effect of saving the energy on the other hand.
Description of drawings
Fig. 1 is a block schematic diagram of the present utility model;
Fig. 2 is that circuit of the present utility model is implemented schematic diagram;
Fig. 3 is an enforcement schematic diagram of the present utility model.
Description of reference numerals:
The 1-electricity-saving lamp section of nothing light modulating device; 10-power coefficient correcting controller; 11-electromagnetic interference (EMI) circuit; The 12-bridge rectifier; The 13-fixed voltage circuit; The 14-compensating circuit; 15-buck control circuit and flyback circuit; The 16-power transistor; 17-Voltage Feedback compensating circuit; The 20-electricity-saving lamp; 21-lamp socket (E27 type); The 24-variable resistor; The 25-optical coupler.
Embodiment
See also Figure 1 and Figure 2, it is respectively block schematic diagram of the present utility model and circuit of the present utility model is implemented schematic diagram, a kind of electricity-saving lamp section of nothing light modulating device 1, and it comprises:
One power coefficient correcting controller 10, this power coefficient correcting controller 10 connects this potential circuit 13, receive the output signal of this fixed voltage circuit 13, this power coefficient correcting controller 10 connects compensating circuit 14 again, be connected power coefficient correcting controller 10 with this buck control circuit with flyback circuit 15 1 ends again, make the output signal of this fixed voltage circuit 13 proofread and correct the processing of control 10 devices, export power controlling transistor 16 again through power coefficient;
One electromagnetic interference (EMI) circuit 11, the one end connects AC power, and the other end at electromagnetic interference (EMI) circuit 11 is provided with bridge rectifier 12 again;
One bridge rectifier 12 connects electromagnetic interference (EMI) circuit 11 and becomes pulsating dc voltage to deliver to input capacitance ac voltage rectifier;
Certain voltage circuit 13, with bridge rectifier 12, buck control circuit and flyback circuit 15, power coefficient correcting controller 10 is connected, produce direct voltage via input capacitance, direct voltage can reach the full voltage input so that the power supply supply of power coefficient correcting controller 10 to be provided by this fixed voltage circuit 13;
One buck control circuit and flyback circuit 15 connect power coefficient correcting controller 10, this power transistor 16 and an electricity-saving lamp lamp socket 21.When power coefficient correcting controller 10 first positive pulses of output, power transistor 16 conductings, inductance first winding is with storage power, second winding also induced voltage feeds back to capability correction controller 10 and makes power supply and use, when second pulse is zero, first winding transfers the energy to output, and using the flyback circuit can be isolated with the ground wire of output and input, to avoid interactive interference;
One Voltage Feedback compensating circuit 17, connect buck control circuit and flyback circuit 15 and power transistor 16, be used for detecting the output voltage values on the electricity-saving lamp 20, and feed back to power coefficient correcting controller 10, use and reach compensation effect with optical coupler 25 conductings;
Voltage Feedback compensating circuit 17 also can utilize optical coupler 25 and pressurizer as the Voltage Feedback compensating circuit, is used for detecting the output voltage values on the electricity-saving lamp.Optical coupler 25 connects power coefficient correcting controller 10, and it is in parallel with optical coupler that a pressurizer is set, and this pressurizer can be for receiving diode (ZENER) simultaneously.
Pressurizer and reference potential are made comparisons, as reach the conducting of reference potential pressurizer, optical coupler 25 conductings feed back to first pin of power coefficient correcting controller 10, use and reach compensation effect, use a Zener diode (ZENER) in parallel with optical coupler, can control output voltage for the highest, when feedback compensation exceeded certain voltage, feedback current was unlikely to surpass rated current.
By above-mentioned member, form a kind of electricity-saving lamp section of nothing light modulating device, this electricity-saving lamp section of nothing light modulating device control mode for voltage-type or and current type control output voltage is provided, this voltage-type control mode wherein, adopt variable resistor 24 to adjust the output dc voltage value, and this current type control mode is used the magnitude of current of resistance sensing output, utilizes controller that output current is fixed again, make the brightness constancy of electricity-saving lamp 20, to prolong 20 life-spans of electricity-saving lamp.
This electricity-saving lamp section of nothing light modulating device further has the filament pre-heating function, between second pin (COMP) of power coefficient correcting controller 10 and fixed voltage circuit 13, resistance capacitance resonant circuit (RC) is set, utilizes resistance capacitance resonant circuit (RC) to postpone when reaching power initiation.
Second pin (COMP) current potential of power coefficient correcting controller 10 is a high potential, through a resistance capacitance resonant circuit (RC) time of delay, second pin (COMP) current potential moment drawn be electronegative potential, reach power initiation protection electricity-saving lamp and filament pre-heating function; Electricity-saving lamp is for bright entirely when opening, and this act as and allows the fluorescent tube preheating, the problem of avoiding cold air room or low temp area voltage to start.See also shown in Figure 3, it is an enforcement schematic diagram of the present utility model, this energy-conservation nothing section light modulating device, input is connected alternating current and a mains switch can be set, wherein this mains switch attaches variable resistor, output connects energy-saving lampholder (E27 type) 21, and mat changes variable resistor resistance size and then changes the output end voltage amplitude, and commercially available electricity-saving lamp is carried out light modulation.Improve electricity-saving lamp power coefficient (PF) value by this and reach 98%, and make total harmonic wave (THD) value below 10%; And this electricity-saving lamp lamp socket (E27 type) 21 can be (E27 type) Bulb holder of table lamp.
Especially its advantage work one is summarized as follows for highlighting the utility model:
Advantage of the present utility model:
The utility model adopts has the light modulator that power coefficient is proofreaied and correct (Power Factor Correction), not only can be energy-conservation, can reduce again quick switching electricity-saving lamp number of times, utilize light regulating technology the brightness of height illumination to be dropped to the brightness of low illumination, reach entirely bright (general illumination), duskiness (mini light night) is saved the energy and is prolonged service life of energy-saving lamp.
The utility model can replace the energy loss problem of traditional type incandescent lamp and use lamp socket (E27 type) and the purposes of art lamp, floor lamp, desk lamp etc. to do combination, can reach the illumination of 5%-100%.
The utility model can be changed electricity-saving lamp originally just can reach dimming function, can directly carry out light modulation to commercially available electricity-saving lamp, and need not the limited dimmable energy-saving lamp that must use could light modulation.
More than be illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and the spirit and the range that limit in claim can carry out many modifications, variation or equivalence to it, but they all will fall in the protection domain of the present utility model.
Claims (6)
1. the electricity-saving lamp section of nothing light modulating device, it is characterized in that, formed by a power coefficient correcting controller, an electromagnetic interference circuit, a bridge rectifier, certain voltage circuit, a buck control circuit and flyback circuit, a Voltage Feedback compensating circuit, wherein
This power coefficient correcting controller connects this potential circuit, receive the output signal of this fixed voltage circuit, this power coefficient correcting controller connects this compensating circuit again, be connected this power coefficient correcting controller with this buck control circuit with flyback circuit one end again, the output signal of this fixed voltage circuit is handled through this power coefficient correcting controller, again output control one power transistor;
One end of this electromagnetic interference circuit connects an AC power, is provided with this bridge rectifier at the other end of this electromagnetic interference circuit;
This bridge rectifier connects this electromagnetic interference circuit, becomes pulsating dc voltage to deliver to an input capacitance ac voltage rectifier;
This fixed voltage circuit, be connected with this power coefficient correcting controller with this bridge rectifier, this buck control circuit and flyback circuit, produce a direct current voltage via this input capacitance, this direct voltage reaches the full voltage input by this fixed voltage circuit, and the power supply supply of this power coefficient correcting controller is provided;
This buck control circuit is connected this fixed voltage circuit and this power coefficient correcting controller with the flyback circuit, it is isolated with the ground wire of output and input to use this flyback circuit, avoids interactive interference;
This Voltage Feedback compensating circuit connects this buck control circuit and flyback circuit and this power transistor, detects the output voltage values on the electricity-saving lamp, and feeds back to this power coefficient correcting controller with an optical coupler.
2. the electricity-saving lamp section of nothing light modulating device as claimed in claim 1, it is characterized in that, the input of this electricity-saving lamp section of nothing light modulating device connects alternating current and a mains switch is set, wherein this mains switch attaches a variable resistor, the output of this electricity-saving lamp section of nothing light modulating device connects a lamp socket, and mat changes this variable resistor resistance size and then changes the output end voltage amplitude.
3. the electricity-saving lamp section of nothing light modulating device as claimed in claim 1 is characterized in that, this electricity-saving lamp section of nothing light modulating device control mode is for to come control output voltage with voltage-type or current type;
This voltage-type control mode is adjusted the output dc voltage value for using a variable resistor;
This current type control mode utilizes this power coefficient correcting controller that output current is fixed for using the magnitude of current of resistance sensing output again.
4. the electricity-saving lamp section of nothing light modulating device as claimed in claim 1, it is characterized in that, this optical coupler connects this power coefficient correcting controller, it is in parallel with this optical coupler that one pressurizer is set, this pressurizer is a Zener diode, and this Voltage Feedback compensating circuit utilizes the output voltage values on this optical coupler and this pressurizer detection electricity-saving lamp.
5. the electricity-saving lamp section of nothing light modulating device as claimed in claim 1, it is characterized in that, one resistance capacitance resonant circuit is set between this power coefficient correcting controller and fixed voltage circuit, postpone when utilizing this resistance capacitance resonant circuit to reach power initiation, the second pin current potential of power coefficient correcting controller is a high potential, through resistance capacitance resonant circuit time of delay, second pin current potential moment drawn be electronegative potential.
6. the electricity-saving lamp section of nothing light modulating device as claimed in claim 1 is characterized in that, this electricity-saving lamp lamp socket is an E27 type Bulb holder of table lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201473539U CN201550348U (en) | 2009-04-22 | 2009-04-22 | Stepless light dimming device of energy-saving lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201473539U CN201550348U (en) | 2009-04-22 | 2009-04-22 | Stepless light dimming device of energy-saving lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201550348U true CN201550348U (en) | 2010-08-11 |
Family
ID=42605531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201473539U Expired - Fee Related CN201550348U (en) | 2009-04-22 | 2009-04-22 | Stepless light dimming device of energy-saving lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201550348U (en) |
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2009
- 2009-04-22 CN CN2009201473539U patent/CN201550348U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20140422 |