CN208285597U

CN208285597U - A kind of LED information display system of controllable silicon light modulation constant-current supply and its composition

Info

Publication number: CN208285597U
Application number: CN201820660845.7U
Authority: CN
Inventors: 李忠训
Original assignee: Blueview Elec Optic Tech Co Ltd
Current assignee: Blueview Elec Optic Tech Co Ltd
Priority date: 2018-05-05
Filing date: 2018-05-05
Publication date: 2018-12-25
Anticipated expiration: 2028-05-05

Abstract

The utility model discloses a kind of controllable silicon light modulation constant-current supplies, separate type AC controller including carrying 485 communication interfaces, at least one thyristor supply being connect with separate type AC controller output end, the thyristor supply includes fusing resistor R1, the varistor RV1 in parallel with fusing resistor R1, it is connected to the rectifier bridge BD1 at the both ends varistor RV1, the capacitor C3 being connect with rectifier bridge BD1 output end, the capacitor C4 in parallel with capacitor C3, first series arm in parallel with capacitor C4, and it is connected to the driving chip LYT7504D at the first series arm both ends, with the transformer T1 being connected on driving chip LYT7504D.MOS copped wave is carried out to alternating current using separate type AC controller, then the watt level of out-put supply is adjusted according to the angle of flow size of MOS copped wave, to change the input power of LED lamp, achieve the purpose that the brightness, the colour temperature, color that adjust LED lamp, can effectively solve the problem that LED lamp is difficult to realize the problem of flexibly dimming in the prior art.

Description

A kind of LED information display system of controllable silicon light modulation constant-current supply and its composition

Technical field

The utility model relates to a kind of constant-current supplies, specifically, be related to a kind of controllable silicon light modulation constant-current supply and its The LED information display system of composition.

Background technique

With the fast development of science and technology, also constantly development substitutes LED product, and people initially want to LED product Energy conservation is realized in Seeking Truth while realizing illumination, and present, and with the increase and transformation of LED product application scenarios, people are to LED The requirement of product is also no longer only illumination and energy conservation, is even more proposed to technical indicators such as the brightness of LED product, colour temperature, colors It requires.But after existing LED lamp installs in same place, be typically only capable to the fixed brightness of display, colour temperature and Color can only also carry out global switch, be not only difficult to meet people and want to variation of the LED product in terms of brightness, colour temperature, color It asks, LED lamp is chronically at high brightness, high color temperature state, can also damage to the service life of power supply and lamp bead, be unfavorable for LED The use steady in a long-term of product.Therefore, the transformable intellectualized LED product of the technical indicators such as brightness, colour temperature, color becomes people The target pursued.

Utility model content

The purpose of this utility model is to provide the LED information display systems of a kind of controllable silicon light modulation constant-current supply and its composition, pass through The output power of power supply is adjusted, to solve the dimming problem of LED product.

To achieve the above object, the technical solution adopted in the utility model is as follows:

A kind of controllable silicon light modulation constant-current supply, the separate type AC controller including carrying 485 communication interfaces, and separated with this At least one thyristor supply of formula AC controller output end connection, which includes fusing resistor R1, with the fusing The varistor RV1 of resistance R1 parallel connection, is connected to the rectifier bridge BD1 at the both ends varistor RV1, exports with rectifier bridge BD1 The capacitor C3 of connection, the capacitor C4 in parallel with capacitor C3, first series arm in parallel with capacitor C4 are held, and is connected to The driving chip LYT7504D at the first series arm both ends, and the transformer T1 being connected on driving chip LYT7504D.

Further, first series arm includes the resistance R2 and capacitor C2 being serially connected, and simultaneously with resistance R2 The resistance R10 of connection.

It connects branch still further, being also parallel with second between first series arm and driving chip LYT7504D Road, second series arm include resistance R3, the R4 and capacitor C6 being serially connected；The pin 1 of the driving chip LYT7504D The both ends of capacitor C6 are connected to pin 8.

The LED information display system being made of controllable silicon light modulation constant-current supply passes through including the separate type AC controller being electrically connected with city At least one thyristor supply that 485 data lines are connect with separate type AC controller, and connect with thyristor supply to A few LED lamp；The thyristor supply includes fusing resistor R1, the varistor RV1 in parallel with fusing resistor R1, even The rectifier bridge BD1 at the both ends varistor RV1 is met, the capacitor C3 being connect with rectifier bridge BD1 output end, simultaneously with capacitor C3 The capacitor C4 of connection, first series arm in parallel with capacitor C4, and it is connected to the driving core at the first series arm both ends Piece LYT7504D, and the transformer T1 being connected on driving chip LYT7504D.

Compared with prior art, the utility model has the following beneficial effects:

(1) the utility model carries out MOS copped wave to alternating current using separate type AC controller, then leading according to MOS copped wave Current flow angle size adjusts the watt level of out-put supply, to change the input power of LED lamp, reaches and adjusts LED lamp Brightness, colour temperature, the purpose of color, principle is ingenious, and system design is simple, easy to implement, can effectively solve the problem that in the prior art LED lamp is difficult to realize the problem of flexibly dimming.

(2) a separate type AC controller can control multiple thyristor supplies, a thyristor supply in the utility model Can control multiple LED lamps, control object is flexible, and it is simple to operate, there is very high practical value.

Detailed description of the invention

Fig. 1 is a kind of system block diagram of the utility model.

Fig. 2 is another system block diagram of the utility model.

Fig. 3 is the chopper circuit schematic diagram of separate type AC controller in the utility model.

Fig. 4 is 485 communicating circuit schematic diagrams of separate type AC controller in the utility model.

Fig. 5 is the power supply circuit schematic diagram of separate type AC controller in the utility model.

Fig. 6 is the zero cross detection circuit schematic diagram of separate type AC controller in the utility model.

Fig. 7 is the schematic diagram of the thyristor supply in the utility model.

Specific embodiment

The utility model is described in further detail with embodiment for explanation with reference to the accompanying drawing, and the mode of the utility model includes But it is not limited only to following embodiment.

As depicted in figs. 1 and 2, the utility model is on system architecture, mainly by separate type AC controller, thyristor supply It is formed with LED lamp three parts.220V alternating current is input to silicon controlled power supply circuit after first carrying out copped wave by separate type AC controller, After silicon controlled power supply circuit detects angle of flow size, change the output power of power supply, output power according to its size variation Small variation causes the variation of the brightness of LED lamp, colour temperature, color, to realize the light modulation of LED lamp.According to actual scene Needs, separate type AC controller can connect a thyristor supply, also can connect multiple thyristor supplies；And each Thyristor supply can freely access several LED lamps again.

Specifically, separate type AC controller is by chopper circuit, 485 communicating circuits, power supply circuit, zero cross detection circuit group At as shown in Figures 3 to 6.And silicon controlled power supply circuit is as shown in fig. 7, comprises fusing resistor R1, in parallel with fusing resistor R1 Varistor RV1, be connected to the rectifier bridge BD1 at the both ends varistor RV1, the electricity connecting with rectifier bridge BD1 output end Hold C3, the capacitor C4 in parallel with capacitor C3, first series arm in parallel with capacitor C4, and is connected to first series connection The driving chip LYT7504D at branch both ends, and the transformer T1 being connected on driving chip LYT7504D.

The utility model is simple to operate, carries out MOS copped wave to alternating current first with separate type AC controller, then basis The angle of flow size of MOS copped wave changes the watt level of out-put supply, to change the input power of LED lamp, reaches tune Brightness, the colour temperature, the purpose of color of LED lamp are saved, principle is ingenious, can effectively solve the problem that LED lamp is difficult in the prior art The problem of realizing flexibly light modulation.

Above-described embodiment is only one of preferred embodiments of the present invention, should not be taken to limit the utility model Protection scope, as long as the utility model body design thought and mentally make have no the change of essential meaning or profit Color, it is solved the technical issues of it is still consistent with the utility model, the protection scope of the utility model should all be included in Within.

Claims

1. a kind of controllable silicon light modulation constant-current supply, which is characterized in that the separate type AC controller including carrying 485 communication interfaces, At least one thyristor supply connecting with separate type AC controller output end, which includes fusing resistor R1, the varistor RV1 in parallel with fusing resistor R1 are connected to the rectifier bridge BD1 at the both ends varistor RV1, whole with this Capacitor C3, the capacitor C4 in parallel with capacitor C3 for flowing the connection of bridge BD1 output end connect with the first of capacitor C4 parallel connection and prop up Road, and it is connected to the driving chip LYT7504D at the first series arm both ends, and be connected to driving chip LYT7504D On transformer T1.

2. a kind of controllable silicon light modulation constant-current supply according to claim 1, which is characterized in that the first series arm packet Include the resistance R2 and capacitor C2 being serially connected, and the resistance R10 in parallel with resistance R2.

3. a kind of controllable silicon light modulation constant-current supply according to claim 2, which is characterized in that in first series arm The second series arm is also parallel between driving chip LYT7504D, which includes the resistance being serially connected R3, R4 and capacitor C6；The pin 1 and pin 8 of the driving chip LYT7504D are connected to the both ends of capacitor C6.

4. the LED information display system being made of controllable silicon light modulation constant-current supply as claimed in claim 3, which is characterized in that including with alternating current The separate type AC controller of connection, at least one thyristor supply being connect by 485 data lines with separate type AC controller, And at least one LED lamp being connect with thyristor supply；The thyristor supply includes fusing resistor R1, with fusing electricity The varistor RV1 for hindering R1 parallel connection, is connected to the rectifier bridge BD1 at the both ends varistor RV1, with rectifier bridge BD1 output end The capacitor C3 of connection, the capacitor C4 in parallel with capacitor C3, first series arm in parallel with capacitor C4, and it is connected to this The driving chip LYT7504D at the first series arm both ends, and the transformer T1 being connected on driving chip LYT7504D.