CN203289697U - Dimming circuit - Google Patents
Dimming circuit Download PDFInfo
- Publication number
- CN203289697U CN203289697U CN2013202011656U CN201320201165U CN203289697U CN 203289697 U CN203289697 U CN 203289697U CN 2013202011656 U CN2013202011656 U CN 2013202011656U CN 201320201165 U CN201320201165 U CN 201320201165U CN 203289697 U CN203289697 U CN 203289697U
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- voltage
- controller
- light adjusting
- driving
- driving governor
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Abstract
The utility model provides a dimming circuit. In the dimming circuit, an alternating current power supply can be utilized, for instance, a commercial power provides a power source for the dimming circuit to operate wholly, and a dimming controller is utilized to dim a load. During dimming, if an operating voltage of a driving controller is equal to or larger than a critical value, a rectifier or a power controller provides a first power source to the driving controller through an alternating voltage adjusted by the dimming controller, so that the driving controller, based on direct voltage changes, adjusts a driving voltage for driving the load through the power controller. If the operating voltage of the driving controller is smaller than the critical value, a cell is switched to provide a second power source to the driving controller, so that the driving controller has a stable operating voltage for controlling the power controller to output the driving voltage to the load. Therefore, the problem that the load twinkles in a small conduction angle is solved; and the dimming circuit is applicable to any type of dimming controller.
Description
Technical field
The utility model is relevant a kind of light adjusting circuit, refers to especially a kind ofly utilize built-in battery to keep driving governor enough operating voltages to be arranged, the light adjusting circuit of steady load running according to this.
Background technology
Light is being played the part of indispensable illuminating effect in people's daily life, it makes human eye can see things clearly, thereby has brought convenience for people's live and work.In order to provide people in dim environment or the situation at night, sufficient light source still can be arranged, so illuminating product popularization and application in daily life.Moreover, electric consumption on lighting accounts for state's household electric ratio height very, as if can't break away from the existing life style of the mankind, the energy and environmental issue come into one's own in recent years, when must take into account between the energy, economy and environmental protection three, and along with the lifting of quality of the life, light be not confined to single brightness illumination, for in response under various brightness lighting demand trend, the light adjusting type lighting device in response to and give birth to.
Traditional Dimmable lighting device only is suitable for and connects real ohmic load in design, for example incandescent lamp or Halogen lamp LED, take incandescent lamp as example, to utilize the dimmer of incandescent lamp and series connection thereof to carry out light modulation, dimmer is mainly to form with the silicon control elements, as two-way exchange trigger triode (TRIAC), be applied to trigger voltage value on the silicon control elements by change, the angle of flow of silicon control elements can obtain to adjust and change the ac voltage that is applied on incandescent lamp, thereby adjusts the luminosity of incandescent lamp.
In order to reduce power consumption and to save the energy, have increasing light fixture system with LED or Electricity-saving lamp bulb as illumination component to replace the conventional incandescent light fixture.Yet, the driving governor of these illumination components can use IC (integrated circuit mostly, Integrated Circuit) control the ON of illumination component with OFF, if IC wants normal operation that one stable DC operating voltage (Vcc just must be provided, Supply Voltage) give IC, IC will normal operation during greater than IC starting resistor (turn-on voltage) as Vcc, otherwise, Vcc IC when stopping voltage (turn-off voltage) will decommission, usually the starting resistor of these IC be between 8.1V to 9.9V, to stop voltage be between 7.2V to 8.8V.The operating voltage of driving governor can provide an accessory power supply from the step-down of rectifier series resistor or by power controller usually.If when existing TRIAC light adjusting circuit is applied to LED or Electricity-saving lamp bulb, the direct-current working volts level of driving governor can the different variations to some extent with the angle of flow of TRIAC.If when the TRIAC angle of flow is turned down, and the Vcc direct-current working volts that make IC are between starting resistor and stop between voltage the repeat mode always that IC will enter startups, stop this moment, and then the flicker of generation illumination component.In addition, often the angle of flow of each label TRIAC is all different, for instance, when A label TRIAC adjusts to bulb and can not glimmer, while changing the A label TRIAC of B label into, also can may cause because of the problem of angle of flow the illumination component flicker.Therefore, can make the brightness vary stable while how to solve regulation and control light, not there will be the flicker situation is problem demanding prompt solution.
In view of this, the utility model, for the disappearance of above-mentioned prior art, proposes a kind of light adjusting circuit, effectively to overcome these above-mentioned problems then.
Summary of the invention
Main purpose of the present utility model is providing a kind of light adjusting circuit, and it sets up an internal cell so that light modulation to be provided, and still can keep the effect of brightness vary stable while allowing light adjusting controller be in low conducting horn shape.
Another purpose of the present utility model is providing a kind of light adjusting circuit, and it can be applicable on any lighting device, and the light modulation effect that high efficiency, long service life can be provided and not glimmer.
In order to achieve the above object, the utility model provides a kind of light adjusting circuit, comprises a light adjusting controller, a rectifier, a power controller, a driving governor and a battery.Light adjusting controller receives one first alternating voltage and a brightness regulated signal, and according to brightness regulated signal, adjusts the first alternating voltage, output one second alternating voltage; Rectifier connects light adjusting controller, is that the second alternating voltage is converted to a direct current voltage; Power controller connects rectifier and a load, receives direct voltage and drives load to export a driving voltage; Driving governor connects rectifier and power controller, when the operating voltage of driving governor is equal to or greater than a critical value, rectifier or power controller provide one first power supply to give driving governor by the second alternating voltage, make it according to DC voltage change, by power controller, adjust driving voltage; And battery connects driving governor, and battery during less than critical value, provides a second source to give driving governor in operating voltage, makes it by power controller, adjust driving voltage.
Wherein, this first power supply is DC power supply.
Wherein, comprising that more one exchanges supply, is to connect this light adjusting controller, is to provide this first alternating voltage and gives this light adjusting controller.
Wherein, the scope of this critical value is 7.2V～8.8V.
Wherein, when this operating voltage of this driving governor is equal to or greater than this critical value, by this first power supply, this battery is charged simultaneously.
Wherein, this battery system is integrated in this driving governor.
Wherein, this battery is rechargeable battery.
Wherein, this brightness regulated signal is the variable signal at voltage turn-on angle.
Wherein, this load is Electricity-saving lamp bulb, LED light lamp or gaseous discharge lamp.
Wherein, this light adjusting controller is the two-way exchange trigger triode.
The utility model provides driving governor enough operating voltages by two kinds of modes, make its DC voltage change according to rectifier, adjust driving voltage by power controller, make the brightness variation of regulation and control load more stablize, can effectively solve existing load and dodge happy denouncing, and can make the power adjusting range more flexible, can be applicable to have market competition advantage on any lighting device.
Under illustrate in detail by specific embodiment, when the effect that is easier to understand the purpose of this utility model, technology contents, characteristics and reaches.
Description of drawings
Fig. 1 is the first embodiment schematic diagram of the present utility model.
Fig. 2 is light modulation oscillogram of the present utility model.
Fig. 3 is the second embodiment schematic diagram of the present utility model.
Description of reference numerals: 10 light adjusting controllers; 12 rectifiers; 14 power controllers; 16 driving governors; 18 batteries; 20 AC power; 22 loads.
Embodiment
Very important due to light modulation in many application, because it can allow the brightness of light meet all-environment demand, the utility model is for reaching random change lamp brightness by complete dark to complete bright normal function, simultaneously can be effectively energy-conservation, therefore the utility model proposes a kind of light adjusting circuit of novelty, be in denouncing of light flash that the low angle of flow produced when improving existing TRIAC light modulation.
As shown in Figure 1, be the first embodiment schematic diagram of the present utility model.Light adjusting circuit comprises a light adjusting controller 10, a rectifier 12, a power controller 14, a driving governor 16 and a battery 18.Light adjusting controller 10 is to be electrically connected an AC power 20, and as civil power, light adjusting controller 10 receives one first alternating voltages from exchanging power supply 20, and is received from the user and controls a brightness regulated signal of light adjusting controller 10.Wherein, light adjusting controller 10 is the two-way exchange trigger triode, is to utilize superior characteristic and the condition of lock stream crystal itself, change the size of the angle of flow with phase control method, so brightness regulated signal is the variable signal at voltage turn-on angle.Light adjusting controller 10 is adjusted the first alternating voltage according to brightness regulated signal, output one second alternating voltage.
Rectifier 12 connects light adjusting controllers 10, be with after the second ac voltage rectifier filtering to be converted to a direct current voltage; Power controller 14 connects output and a load 22 of rectifier 12, and power controller 14 is to receive direct voltage to drive load 22 runnings to export a driving voltage, and wherein, load 22 can be Electricity-saving lamp bulb, LED light lamp or gaseous discharge lamp.Driving governor 16 connects rectifier 12, power controller 14 and battery 18, because driving governor 16 must have stable operating voltage, because driving governor 16 is all generally to use IC, for example the starting resistor of general IC is between 8.1V～9.9V, stop voltage between 7.2V～8.8V, beginning can be adjusted driving voltage by power controller 14 and give load 22, stably to control lamplight brightness, therefore, the utility model uses two kinds of supply power modes, stability with the operating voltage that increases driving governor 16, be detailed later.
the operating voltage of driving governor 16 can be done variation along with the brightness regulated signal of light adjusting controller 10, therefore, when the operating voltage of driving governor 16 is equal to or greater than a critical value, starting resistor 8.1V～the 9.9V of driving governor 16 for example, this moment, the voltage turn-on angle of light adjusting controller 10 was enough large, and can allow rectifier 12 or power controller 14 provide one first power supply to give driving governor 16 by the second alternating voltage, make driving governor 16 according to DC voltage change, adjust driving voltage by power controller 14, regulate and control according to this brightness vary stable of load 22.It should be noted that, when the angle of flow of light adjusting controller 10 little when allowing the operating voltage of driving governor 16 less than a critical value, for example driving governor 16 stops voltage 7.2V～8.8V, this moment driving governor 16 operating voltage will starting resistor with stop voltage and repeatedly change, and running that can't be stable, and then produce the load 22 happy problems of sudden strain of a muscle.Therefore, battery 18 is in the operating voltage of driving governor 16 during less than critical value, provide a second source to give driving governor 16, make it pass through power controller 14 and adjust driving voltage, thus, the direct voltage of light adjusting controller 10 (being the angle of flow) although become very little, but still can allow driving governor 16 keep running.
The operating voltage of general driving governor 16, between 7.2V～8.8V, has been the darkest brightness of load 22, even extinguishes, and namely is in the state that stops.Therefore the utility model is provided second source driving governor 16 by setting up battery 18, makes its operating voltage keep stable state, and then solves the happy problem of load sudden strain of a muscle.further, when the voltage turn-on angle of light adjusting controller 10 is adjusted to minimum, as shown in Figure 2, the second source that utilizes battery 18 to provide, even if with the first power supply of guaranteeing driving governor 16, lower than stopping voltage, still can keep stable running, power stage adjustment by power controller, load 22 can be turned down 0.1w and do not dodged pleasure especially, thus, the utility model really can be larger than the adjusting range of existing load brightness, more stable, moreover, can be applicable on any lighting device, and can provide high efficiency, long service life and the light modulation effect of not glimmering.
The utility model is fit to be applied in the light adjusting controller 10 of different labels, can not cause because the angle of flow of different label light adjusting controllers 10 is different load 22 to produce flicker.Because the existing light modulation line adjustment of A board light adjusting controller 10 that will use arrives optimal cases, make when the minimum angle of flow and can not glimmer, but may be because of the different problem of the angle of flow while changing B board light adjusting controller 10 into, cause operating voltage unstable and produce load 22 flickers; This moment is as long as use light adjusting circuit of the present utility model, just can allow the operating voltage of driving governor 16 optionally switch to battery 18 power supplies, and can not cause because of the operating voltage shakiness problem of load 22 flicker, thus, really can reach on the light adjusting controller of design of the present utility model applicable to any label, and thoroughly solve and existingly can't overcome denouncing of light flash.
As shown in Figure 3, for the second embodiment schematic diagram of the present utility model, itself and the second embodiment difference only are that battery 18 can be integrated in driving governor 16, when the operating voltage of driving governor 16 is equal to or greater than a critical value, be to provide one first power supply to give driving governor 16 via rectifier 12 or power controller 14, at this moment, the first power supply charges to battery 18 simultaneously, therefore, can promote practicality that battery sets up and the stability of integrally adjusting light circuit running.
In sum, the utility model provides driving governor enough operating voltages by two kinds of modes, make its DC voltage change according to rectifier, adjust driving voltage by power controller, make the brightness variation of regulation and control load more stablize, can effectively solve existing load and dodge happy denouncing, and can make the power adjusting range more flexible, can be applicable to have market competition advantage on any lighting device.
As described above, be only preferred embodiment of the present utility model, not is used for limiting the scope that the utility model is implemented., therefore be that all equalizations of according to the described feature of the utility model application range and spirit, doing change or modify, all should be included in claim of the present utility model.
Claims (10)
1. a light adjusting circuit, is characterized in that, comprising:
One light adjusting controller, receive one first alternating voltage and a brightness regulated signal, and according to this brightness regulated signal, adjust this first alternating voltage, output one second alternating voltage;
One rectifier, connect this light adjusting controller, is this second alternating voltage is converted to a direct current voltage;
One power controller, connect this rectifier and a load, receives this direct voltage and drive this load to export a driving voltage;
One driving governor, connect this rectifier and this power controller, when the operating voltage of this driving governor is equal to or greater than a critical value, this rectifier or this power controller provide one first power supply to give this driving governor by this second alternating voltage, make it according to this DC voltage change, by this power controller, adjust this driving voltage; And
One battery, connect this driving governor, and this battery during less than this critical value, provides a second source to give this driving governor in this operating voltage, makes it pass through this power controller and adjusts this driving voltage.
2. light adjusting circuit according to claim 1, is characterized in that, this first power supply is DC power supply.
3. light adjusting circuit according to claim 1, is characterized in that, comprises that more one exchanges supply, is to connect this light adjusting controller, is to provide this first alternating voltage and gives this light adjusting controller.
4. light adjusting circuit according to claim 1, is characterized in that, the scope of this critical value is 7.2V～8.8V.
5. light adjusting circuit according to claim 1, is characterized in that, when this operating voltage of this driving governor is equal to or greater than this critical value, by this first power supply, this battery charged simultaneously.
6. light adjusting circuit according to claim 1, is characterized in that, this battery is to be integrated in this driving governor.
7. light adjusting circuit according to claim 1, is characterized in that, this battery is rechargeable battery.
8. light adjusting circuit according to claim 1, is characterized in that, this brightness regulated signal is the variable signal at voltage turn-on angle.
9. light adjusting circuit according to claim 1, is characterized in that, this load is Electricity-saving lamp bulb, LED light lamp or gaseous discharge lamp.
10. light adjusting circuit according to claim 1, is characterized in that, this light adjusting controller is the two-way exchange trigger triode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101207612 | 2012-04-24 | ||
| TW101207612U TWM440613U (en) | 2012-04-24 | 2012-04-24 | Light adjusting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289697U true CN203289697U (en) | 2013-11-13 |
Family
ID=47716993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202011656U Expired - Lifetime CN203289697U (en) | 2012-04-24 | 2013-04-19 | Dimming circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203289697U (en) |
| TW (1) | TWM440613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103379713A (en) * | 2012-04-20 | 2013-10-30 | 金威贸易有限公司 | Light adjusting circuit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI462640B (en) * | 2012-12-25 | 2014-11-21 | Unity Opto Technology Co Ltd | Adaptive LED dimming drive circuit |
-
2012
- 2012-04-24 TW TW101207612U patent/TWM440613U/en not_active IP Right Cessation
-
2013
- 2013-04-19 CN CN2013202011656U patent/CN203289697U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103379713A (en) * | 2012-04-20 | 2013-10-30 | 金威贸易有限公司 | Light adjusting circuit |
| CN103379713B (en) * | 2012-04-20 | 2016-05-18 | 金威贸易有限公司 | Light adjusting circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM440613U (en) | 2012-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |