Utility model content
The object of the utility model embodiment is to provide a kind of LED photo engine module, is intended to solve existing LED photo engine module and cannot controls brightness, fails to meet the problem of energy-conservation requirement.
The utility model embodiment is achieved in that a kind of LED photo engine module, comprises multiple LED lamp pearls, access constant current unit after multiple LED lamp pearl electrical connections, and described constant current unit processes with input signal and light modulation pulse output unit is electrically connected; Described input signal is processed and light modulation pulse output unit receives the control signal that Energy Saving Control unit is exported, and described control signal is processed into the constant current signal that described constant current unit is controlled.
Another object of the utility model embodiment is to provide a kind of lighting device, and described lighting device adopts above-mentioned LED photo engine module.
The utility model embodiment is by access constant current unit after multiple LED lamp pearl electrical connections, described constant current unit is electrically connected with input signal processing and light modulation pulse output unit, described input signal is processed and light modulation pulse output unit receives the control signal that Energy Saving Control unit is exported, described control signal is processed into the constant current signal that described constant current unit is controlled, luminous by demand by described constant current unit drives LED lamp pearl again, meet energy-conservation requirement.Thereby this LED photo engine module can be widely used in various lighting devices, as bulb lamp, Down lamp, fluorescent lamp, wall lamp, Projecting Lamp etc.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model embodiment is by access constant current unit after multiple LED lamp pearl electrical connections, described constant current unit is electrically connected with input signal processing and light modulation pulse output unit, described input signal is processed and light modulation pulse output unit receives the control signal that Energy Saving Control unit is exported, described control signal is processed into the constant current signal that described constant current unit is controlled, luminous by demand by described constant current unit drives LED lamp pearl again, meet energy-conservation requirement.Thereby this LED photo engine module can be widely used in various lighting devices, as bulb lamp, Down lamp, fluorescent lamp, wall lamp, Projecting Lamp etc.
Below in conjunction with specific embodiment, realization of the present utility model is described in detail.
As shown in Figure 1, the LED photo engine module that the utility model embodiment provides comprises multiple LED lamp pearls 1, access constant current unit 2 after multiple LED lamp pearl 1 electrical connections, and described constant current unit 2 processes with input signal and light modulation pulse output unit 3 is electrically connected; Described input signal is processed and light modulation pulse output unit 3 receives the control signal that Energy Saving Control unit 4 is exported, and described control signal is processed into the constant current signal that described constant current unit 2 is controlled.Multiple LED lamp pearls 1 are electrically connected to rear access constant current unit 2 herein, described constant current unit 2 is electrically connected with input signal processing and light modulation pulse output unit 3, processed and light modulation pulse output unit 3 receives the control signal that Energy Saving Control unit 4 is exported by described input signal, described control signal is processed into the constant current signal that described constant current unit 2 is controlled, luminous by demand by described constant current unit 2 driving LED lamp pearls again, to meet energy-conservation requirement.
Energy Saving Control unit 4 described in the utility model embodiment has for the first interface 41 of sound-optical controller access or/and the second interface 42 of Thermoelectric Infrared Sensor access.Can select corresponding controller or sensor according to actual conditions like this, insert the corresponding interface, convenient, fast.Conventionally, described input signal processing and light modulation pulse output unit 3 include single-chip microcomputer; Described constant current unit 2 includes constant current control IC, and described constant current control IC has light modulation pin or signal detection pin.Certainly integrated acousto-optic controller signals processing unit and Thermoelectric Infrared Sensor signal processing unit onboard.
In addition, described LED photo engine module also comprises the light modulation unit brightness of LED lamp pearl 1 being regulated according to on-off times, makes it to have wall-board switch dimming function.Wherein, the luminance parameter of described LED lamp pearl 1 is stored in EEPROM.Described on-off times is produced by the circulation of wall-board switch knob or wall-board switch button ON/OFF circulation produces.As preferably, described LED lamp pearl 1 is the LED lamp pearl of polycrystalline series connection, can reduce like this quantity of LED lamp pearl, saves space on plate.
Should be noted that, single-chip microcomputer after the energising of this LED photo engine module in its inner input signal processing and light modulation pulse output unit 3 reads its inner EEPROM and obtains luminance parameter, this single-chip microcomputer is exported different light modulation pulses according to different luminance parameters, control constant current unit 2 and export different average currents, LED lamp pearl 1 sends different brightness.After the pulse of described single-chip microcomputer output brightness, store next switch output brightness parameter and enter EEPROM, to read next time.More than move and all carry out after each switch energising.
After above having stable behavior (no matter in which brightness), input signal is processed and light modulation pulse output unit 3 can constantly detect sound-optical controller signal input interface (being first interface 41) and Thermoelectric Infrared Sensor signal input interface (i.e. the second interface 42).If detected after corresponding signal, its inner single-chip microcomputer is made after signal processing, adjusts output pulse and regulates LED brightness size or close LED action.For example, wall-board switch light modulation brightness shelves: 100%-50%-20%.Sound light control functionality: A, daytime all do not work with/without sound LED; There is sound LED in B, evening bright 1 minute.Refer to following table.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.