CN206294396U - The multifunctional intellectual control power supply of LED illumination lamp string - Google Patents

Abstract

The utility model is related to LED intelligent control circuit technical fields, more particularly to a kind of multifunctional intellectual control power supply of LED illumination lamp string, it includes D/C power, multifunctional intellectual control circuit, drive circuit, drive circuit includes driver element and flows unit, and flowing unit includes transformer T1, transformer T2, coupling inductance T3, capacitance C_B1, capacitance C_B2With two paths of LED module, two groups of LED string is at least connected with per paths of LEDs module.Wherein, multifunctional intellectual control circuit uses single chip machine controlling circuit, and electronic component is less, reduces the volume of circuit board, is conducive to the miniaturization of electronic product；And, the stream between two paths of LED module is realized by using coupling inductance, make to be flowed between every group of LED string, it is effectively improved the equal properties of flow of multigroup LED string.The utility model belongs to the core technology of LED illumination lamp string, and technology content is higher.

Description

The multifunctional intellectual control power supply of LED illumination lamp string

Technical field

The utility model is related to LED (light emitting diode) intelligent control circuit technical field, more particularly to a kind of LED illumination The multifunctional intellectual control power supply of lamp string.

Background technology

LED is referred to as forth generation light source, with energy-saving and environmental protection, safety, long lifespan, low-power consumption, low-heat, high brightness, anti- Water, miniature, shockproof, easy light modulation, light beam concentrate, easy maintenance the features such as, can be widely applied to various instructions, display, decoration, The fields such as backlight, general lighting.Wherein, in many occasions, the illuminating effect of LED illumination lamp string is essential.

The multifunctional intellectual control power supply of general LED illumination lamp string includes D/C power, multifunctional intellectual control circuit, drives Circuit, D/C power is used to be powered for each circuit, and drive circuit is used to drive LED string luminous lighting, multifunctional intellectual control electricity Road is used to control drive circuit and control luminous lighting pattern of LED string etc..But, the LED illumination lamp string of prior art Multifunctional intellectual controls circuit, and mostly using discrete component circuits such as switching tubes, electronic component is various, causes the body of circuit board Product is very big, is unfavorable for the miniaturization of electronic product；Also, when with multigroup LED string, it is not easy between each group LED string Current compliance is realized, because the C-V characteristic of each group LED string often has certain difference, and LED chip to voltage Compare sensitive, under identical driving voltage, less C-V characteristic difference will result in larger current difference, and influence is normal Use.

Utility model content

The purpose of this utility model is in view of the shortcomings of the prior art and provides a kind of multi-functional intelligence of LED illumination lamp string Power supply can be controlled, its electronic component is less, be conducive to the miniaturization of electronic product, and every group of LED string can be realized Between stream, be effectively improved the equal properties of flow of multigroup LED string.

The purpose of this utility model is achieved through the following technical solutions：

A kind of multifunctional intellectual control power supply of LED illumination lamp string, including D/C power, multifunctional intellectual control circuit, drive Dynamic circuit, the multifunctional intellectual control circuit uses single chip machine controlling circuit；The drive circuit is including driver element and Stream unit, the stream unit includes transformer T1, transformer T2, coupling inductance T3, capacitance C_B1, capacitance C_B2With Two paths of LED module, two groups of LED string, the secondary W1 of the transformer T1, transformer T2 are at least connected with per paths of LEDs module Secondary W2 be in electrical equipment isolation, and secondary W1 and W2 are by the way of Double-wire parallel wound；One end connection blocking of secondary W1 Electric capacity C_B1, the main coil of other end connection coupling inductance T3；One end of secondary W2 connects capacitance C_B2, other end company Connect the secondary coil of coupling inductance T3；The main coil of coupling inductance T3 is 1 with the turn ratio of secondary coil:1.

Wherein, the two paths of LED module is respectively first via LED module, the second paths of LEDs module.

Wherein, the first via LED module includes two groups of diodes in parallel, and one of which diode includes being sequentially connected in series Diode D_R1And D_R3, another set diode includes the D that is sequentially connected in series_R2And D_R4, diode D_R1And D_R3Series connection node connect Meet capacitance C_B1Output end, diode D_R2And D_R4Series connection node connect the main coil output end of continuous coupled inductance T3；Institute Two groups of LED strings for stating the connection of first via LED module are respectively the first LED string, the second LED string, the first LED connection in series-parallel There is capacitance C₀₁, the second LED connection in series-parallel has capacitance C₀₂。

Wherein, the second paths of LEDs module includes two groups of diodes in parallel, and one of which diode includes being sequentially connected in series Diode D_R5And D_R7, another set diode includes the D that is sequentially connected in series_R6And D_R8, diode D_R5And D_R7Series connection node connect Meet capacitance C_B2Output end, diode D_R6And D_R8Series connection node connect the secondary coil output end of continuous coupled inductance T3, institute Two groups of LED strings for stating the connection of the second paths of LEDs module are respectively the 3rd LED string, the 4th LED string, the 3rd LED connection in series-parallel There is capacitance C₀₃, the 4th LED connection in series-parallel has capacitance C₀₄。

It is using the beneficial effect produced by above-mentioned technical proposal：Multifunctional intellectual control circuit uses Single-chip Controlling Circuit, electronic component is less, reduces the volume of circuit board, is conducive to the miniaturization of electronic product；And, by using coupling The stream that inductance is realized between two paths of LED module is closed, makes to be flowed between every group of LED string, be effectively improved the equal of multigroup LED string Properties of flow.The utility model belongs to the core technology of LED illumination lamp string, and technology content is higher.

Brief description of the drawings

Fig. 1 is frame principle figure of the present utility model.

Fig. 2 is the circuit theory diagrams of D/C power of the present utility model and drive circuit.

Specific embodiment

With reference to the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearly Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.

Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new Type can also be different from other manner described here using other be implemented, and those skilled in the art can be without prejudice to this reality Similar popularization is done with the case of new intension, therefore the utility model is not limited by following public specific embodiment.

As shown in figure 1, the multifunctional intellectual the utility model discloses a kind of LED illumination lamp string controls power supply, including DC Power supply 1, multifunctional intellectual control circuit, drive circuit 3, multifunctional intellectual control circuit use single chip machine controlling circuit 2.Monolithic The power input of machine control circuit 2, the power input of drive circuit 3 are connected with D/C power 1, to realize power supply；Monolithic The control signal output of machine control circuit 2 is connected with the control end of drive circuit 3, to realize multifunctional intellectual control；Drive The drive signal output end of circuit 3 is connected with LED string 4, to drive the luminous lighting of LED string 4.Wherein, Single-chip Controlling electricity Road 2 can be using the single-chip microcomputer of model STC89C52RC.

As shown in Fig. 2 drive circuit 3 includes driver element and flows unit, the stream unit includes transformer T1, becomes Depressor T2, coupling inductance T3, capacitance C_B1, capacitance C_B2With two paths of LED module, two are at least connected with per paths of LEDs module Group LED string, the secondary W1 of the transformer T1, the secondary W2 of transformer T2 be in electrical equipment isolation, and secondary W1 and W2 is by the way of Double-wire parallel wound；One end of secondary W1 connects capacitance C_B1, the main line of other end connection coupling inductance T3 Circle；One end of secondary W2 connects capacitance C_B2, the secondary coil of other end connection coupling inductance T3；The main line of coupling inductance T3 Circle is 1 with the turn ratio of secondary coil:1.The stream between two paths of LED module is realized by using coupling inductance T3, makes every group of LED Flowed between string, be effectively improved the equal properties of flow of multigroup LED string.

Wherein, the two paths of LED module is respectively first via LED module, the second paths of LEDs module.The first via LED moulds Block includes two groups of diodes in parallel, and one of which diode includes the diode D being sequentially connected in series_R1And D_R3, the pole of another set two Pipe includes the D being sequentially connected in series_R2And D_R4, diode D_R1And D_R3Series connection node connection capacitance C_B1Output end, diode D_R2 And D_R4Series connection node connect the main coil output end of continuous coupled inductance T3；Two groups of LED of the first via LED module connection Lamp string is respectively the first LED string (LED1), the second LED string (LED2), and the first LED connection in series-parallel has capacitance C₀₁, the Two LED connection in series-parallel have capacitance C₀₂.The second paths of LEDs module includes two groups of diodes in parallel, the pole of one of which two Pipe includes the diode D being sequentially connected in series_R5And D_R7, another set diode includes the D that is sequentially connected in series_R6And D_R8, diode D_R5With D_R7Series connection node connection capacitance C_B2Output end, diode D_R6And D_R8Series connection node connect continuous coupled inductance T3's Secondary coil output end, two groups of LED strings of the second paths of LEDs module connection are respectively the 3rd LED string (LED3), the 4th LED string (LED4), the 3rd LED connection in series-parallel has capacitance C₀₃, the 4th LED connection in series-parallel has capacitance C₀₄.So, By coupling inductance T3, make the first LED string, the second LED string, flowed between the 3rd LED string and the 4th LED string, have Effect improves the equal properties of flow and reliability of multigroup LED string, increases the service life.

The driver element of the drive circuit 3 includes LLC converters, resonant network.The LLC converters include upper bridge portion Divide and lower bridge portion, in parallel with D/C power after upper bridge portion and the series connection of lower bridge portion, the resonant network includes upper resonant network With lower resonant network, upper resonant network output end connection transformer T1, lower resonant network output end connection transformer T2.LLC becomes The upper bridge portion of parallel operation includes triode Q in parallel₁, electric capacity C_S1With diode D_S1, bridge portion includes parallel connection under LLC converters Triode Q₂, electric capacity C_S2With diode D_S2, the upper resonant network includes the resonant capacitance C that is sequentially connected in series_R1, static exciter Inductance L_m1With resonant inductance L_R, lower resonant network includes the resonant capacitance C that is sequentially connected in series_R2, static exciter inductance L_m2And resonance Inductance L_R, that is, it is in symmetrical above and below to go up resonant network and lower resonant network, and upper resonant network two ends connect bridge on LLC converters respectively Diode D_S1Two ends, lower resonant network two ends connect the diode D of bridge under LLC converters respectively_S2Two ends, upper resonant network With lower resonant network common resonant inductance L_R.Foregoing circuit structure, can be better achieved the stream between every group of LED string.

Claims (4)

1. a kind of multifunctional intellectual of LED illumination lamp string controls power supply, including D/C power, multifunctional intellectual control circuit, driving Circuit, it is characterised in that：The multifunctional intellectual control circuit uses single chip machine controlling circuit；The drive circuit includes driving Unit and unit is flowed, the stream unit includes transformer T1, transformer T2, coupling inductance T3, capacitance C_B1, blocking electricity Hold C_B2With two paths of LED module, two groups of LED string, the secondary W1 of the transformer T1, change are at least connected with per paths of LEDs module The secondary W2 of depressor T2 is in electrical equipment isolation, and secondary W1 and W2 are by the way of Double-wire parallel wound；One end of secondary W1 connects Meet capacitance C_B1, the main coil of other end connection coupling inductance T3；One end of secondary W2 connects capacitance C_B2, in addition One end connects the secondary coil of coupling inductance T3；The main coil of coupling inductance T3 is 1 with the turn ratio of secondary coil:1.

2. the multifunctional intellectual of LED illumination lamp string according to claim 1 controls power supply, it is characterised in that：The two-way LED module is respectively first via LED module, the second paths of LEDs module.

3. the multifunctional intellectual of LED illumination lamp string according to claim 2 controls power supply, it is characterised in that：Described first Paths of LEDs module includes two groups of diodes in parallel, and one of which diode includes the diode D being sequentially connected in series_R1And D_R3, in addition One group of diode includes the D being sequentially connected in series_R2And D_R4, diode D_R1And D_R3Series connection node connection capacitance C_B1Output end, Diode D_R2And D_R4Series connection node connect the main coil output end of continuous coupled inductance T3；The first via LED module connection Two groups of LED strings be respectively the first LED string, the second LED string, the first LED connection in series-parallel has capacitance C₀₁, second LED connection in series-parallel has capacitance C₀₂。

4. the multifunctional intellectual of LED illumination lamp string according to claim 2 controls power supply, it is characterised in that：Described second Paths of LEDs module includes two groups of diodes in parallel, and one of which diode includes the diode D being sequentially connected in series_R5And D_R7, in addition One group of diode includes the D being sequentially connected in series_R6And D_R8, diode D_R5And D_R7Series connection node connection capacitance C_B2Output end, Diode D_R6And D_R8Series connection node connect the secondary coil output end of continuous coupled inductance T3, the second paths of LEDs module connection Two groups of LED strings be respectively the 3rd LED string, the 4th LED string, the 3rd LED connection in series-parallel has capacitance C₀₃, the 4th LED connection in series-parallel has capacitance C₀₄。