CN201054835Y

CN201054835Y - LED lamp serial control circuit

Info

Publication number: CN201054835Y
Application number: CNU2007200514710U
Authority: CN
Inventors: 容振光
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-16
Filing date: 2007-05-16
Publication date: 2008-04-30
Anticipated expiration: 2017-05-16

Abstract

The utility model relates to a control circuit of a LED lamp string for controlling the blinking of the LED lamp string, which comprises a battery pack formed by serical connection of two batteries with 1.5 volts, a boost circuit provided with an integrated circuit U7 and an output circuit provided with an integrated circuit U1. The boost circuit comprises an integrated circuit U7, two capacitors CIN and COUT, two resistors R1 and R2, an inductance L1, a MOS pipe M1 and a zener diode D3. The output circuit comprises an integrated circuit U1, three resistors R5, R7 and R8, and a triode Q3. The voltage is raised from 3 volts to 5 volts using the boost circuit provided with the integrated circuit U7, and the integrated circuit U1 is used as the output circuit. The 5-volt voltage not only provides load for the LED lamp string but also supplies electricity for the integrated circuit U1, thereby the voltage raised from 3 volts to 5 volts is provided for the LED lamp string for input, and the amount of using batteries and the electricity consumption are both small. The utility model can be designed with a large amount of output and thereby controlling the synchronous blinking of all LEDs on multiple groups of lamp strings consisting of a plurality of LEDs. The utility model not only saves cost but also has simple control.

Description

LED lamp cascade control circuit

[technical field]

The utility model relates to a kind of automatic control circuit of LED lamp string, particularly relates to a kind of control circuit of the LED of control lamp string flicker.

[background technology]

Development along with society, LED lamp string not only is applied to the decoration of doing something for the occasion in various red-letter days such as Christmas Day, and be applied to house decoration and city lighting engineering and various recreations place, LED lamp string and traditional incandescent lamp string have incomparable advantage, have beautiful in colour, can realize the multiple variation of color, and effectively reduced energy consumption, the seven color Color-changing lamp strings of forming can not only play the effect of illumination, playing decoration function allows different red-letter days and different occasions increase many celebrating atmosphere especially, Just because of this, LED lamp string has quietly entered in the middle of we live, and the LED lamp string that we used always at present links up the composition chain structure with diatom with LED, makes it luminous, and have function control device, make the lamp string produce multicolour and change.

Along with the development of lamp decoration industry, the LED lamp string of various functions appears on the market again and again, can not satisfy the multifarious demand of people like this, nor can satisfy the use needs of some special occasions; In the LED lamp string that uses, have plenty of at present by connecing civil power input behind the transformer; Have plenty of with battery and import, what do input with battery generally is the battery of 1.5 volts at two joints, wants 4.5 volts but the input that the LED lamp string of general flicker needs is general minimum, so just need three saves 1.5 volts battery, so just cause the control box volume of control LED lamp string big, and very power consumption.

[utility model content]

The utility model is at the above-mentioned defective of prior art, provide a kind of voltage to rise to 5 volts and made input, and LED lamp cascade control circuit that power consumption little few with number of batteries for LED lamp strings with 3 volts, it can design a plurality of outputs, thereby may command is organized more all light-emitting diodes glimmer synchronously on the lamp string of being made up of a plurality of light-emitting diodes, both saved cost, control simple again, it can adopt a control circuit control same group or not on the same group a plurality of light-emitting diodes glimmer synchronously.

In order to solve the problems of the technologies described above, the utility model comprises battery pack battery that 1.5 volts batteries of two joints connect, be provided with the booster circuit of integrated circuit U7 and be provided with the output circuit of integrated circuit U1; Described booster circuit comprises integrated circuit U7, two capacitor C IN, COUT, two resistance R 1, R2, inductance L 1, metal-oxide-semiconductor M1 and voltage stabilizing didoe D3, and described output circuit comprises integrated circuit U1, three resistance R 5, R7, R8 and triode Q3; The pin 4 of integrated circuit U7 is connected back ground connection with the negative pole of battery pack battery, the pin 3 of integrated circuit U7 connects the positive pole of battery pack battery, the positive pole of battery pack battery connects the positive pole of capacitor C IN, the minus earth of capacitor C IN, inductance L 1 is connected between the drain electrode of the positive pole of battery pack battery and metal-oxide-semiconductor M1, the source ground of metal-oxide-semiconductor M1, the grid of metal-oxide-semiconductor M1 connects the pin 5 of integrated circuit U7, the pin 1 of integrated circuit U7 is by resistance R 2 back ground connection, resistance R 1 is connected on two pin 1 of integrated circuit U7 and 2, the drain electrode of metal-oxide-semiconductor M1 connects the positive pole of voltage stabilizing didoe D3, the negative pole of voltage stabilizing didoe D3 respectively with the pin 2 of integrated circuit U7, the positive pole of capacitor C OUT, two pin 1 of integrated circuit U1 are connected with 2, the minus earth of capacitor C OUT, two pin 9 of integrated circuit U1 and 10 ground connection, two pin 2 of integrated circuit U1 and 3 are connected to resistance R 5, the pin 16 of integrated circuit U1 connects the collector electrode of triode Q3, the emitter of triode Q3 connects the pin 1 of integrated circuit U1, be connected to resistance R 7 between the emitter of triode Q3 and base stage, be connected to resistance R 8 between the base stage of triode Q3 and ground.

Above-mentioned metal-oxide-semiconductor M1 is a N channel-type metal-oxide-semiconductor.

Two pin 13 of said integrated circuit U1 and 1 are connected to reset key reset.

The utility model is with respect to the beneficial effect of prior art: because the utility model adopts the booster circuit that is provided with integrated circuit U7,3 volts voltages are risen to 5 volts, adopt integrated circuit U1 to make output circuit again, 5 volts voltage not only offers the load of LED lamp string, also gives integrated circuit U1 power supply.By adopting such structure and mode, the utility model is made input, and LED lamp cascade control circuit that power consumption little few with number of batteries with regard to providing a kind of voltage with 3 volts to rise to 5 volts for LED lamp strings, it can design a plurality of outputs, thereby may command is organized more all light-emitting diodes glimmer synchronously on the lamp string of being made up of a plurality of light-emitting diodes, both saved cost, control simple again, it can adopt a control circuit control same group or not on the same group a plurality of light-emitting diodes glimmer synchronously.

[description of drawings]

Fig. 1 is the circuit principle structure schematic diagram (being connected to the load of LED lamp string) of a kind of preferred embodiment of the utility model;

Fig. 2 is the circuit principle structure schematic diagram (connecing the different connection methods of LED lamp string load) of Fig. 1.

[embodiment]

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

By Fig. 1 and Fig. 2 as can be seen, the utility model comprises battery pack battery that 1.5 volts batteries of two joints connect, is provided with the booster circuit of integrated circuit U7 and is provided with the output circuit of integrated circuit U1; Described booster circuit comprises integrated circuit U7, two capacitor C IN, COUT, two resistance R 1, R2, inductance L 1, metal-oxide-semiconductor M1 and voltage stabilizing didoe D3, and described output circuit comprises integrated circuit U1, three resistance R 5, R7, R8 and triode Q3; The pin 4 of integrated circuit U7 is connected back ground connection with the negative pole of battery pack battery, the pin 3 of integrated circuit U7 connects the positive pole of battery pack battery, the positive pole of battery pack battery connects the positive pole of capacitor C IN, the minus earth of capacitor C IN, inductance L 1 is connected between the drain electrode of the positive pole of battery pack battery and metal-oxide-semiconductor M1, the source ground of metal-oxide-semiconductor M1, the grid of metal-oxide-semiconductor M1 connects the pin 5 of integrated circuit U7, the pin 1 of integrated circuit U7 is by resistance R 2 back ground connection, resistance R 1 is connected on two pin 1 of integrated circuit U7 and 2, the drain electrode of metal-oxide-semiconductor M1 connects the positive pole of voltage stabilizing didoe D3, the negative pole of voltage stabilizing didoe D3 respectively with the pin 2 of integrated circuit U7, the positive pole of capacitor C OUT, two pin 1 of integrated circuit U1 are connected with 2, the minus earth of capacitor C OUT, two pin 9 of integrated circuit U1 and 10 ground connection, two pin 2 of integrated circuit U1 and 3 are connected to resistance R 5, the pin 16 of integrated circuit U1 connects the collector electrode of triode Q3, the emitter of triode Q3 connects the pin 1 of integrated circuit U1, be connected to resistance R 7 between the emitter of triode Q3 and base stage, be connected to resistance R 8 between the base stage of triode Q3 and ground.After the process booster circuit boosts in the utility model, the voltage that the two battery pack battery that save 1.5 volts of batteries series connection is boosted to the negative pole place of voltage stabilizing didoe D3 is 5 volts, this voltage of 5 volts is given integrated circuit U1 and LED lamp string electric, and integrated circuit U1 also has the effect of power saving.

As depicted in figs. 1 and 2, above-mentioned metal-oxide-semiconductor M1 is a N channel-type metal-oxide-semiconductor.

As depicted in figs. 1 and 2, two of said integrated circuit U1 pin 13 and 1 are connected to reset key reset.

In Fig. 1, two pin 17 of integrated circuit U1 and 18 are output, the pin 17 and 18 of integrated circuit U1 is connected on the base stage of triode Q2 and Q1 by resistance R 27 and R26 respectively, after linking to each other, the emitter of two triode Q2 and Q1 is connected on the negative pole place (voltage is 5 volts) of voltage stabilizing didoe D3 herein, inter-collector at two triode Q2 and Q1 is connected to capacitor C 1, the collector electrode of two triode Q2 and Q1 is connected on the base stage of triode Q4 and Q5 by resistance R 24 and R25 respectively, the emitter of two triode Q4 and the Q5 back ground connection that links to each other, the collector electrode of triode Q4 is connected on the collector electrode of triode Q1, the collector electrode of triode Q5 is connected on the collector electrode of triode Q2, inter-collector at two triode Q2 and Q1 is parallel with the LED lamp string load that two groups of a plurality of LEDs are formed, this two groups of LED lamp strings load can be different color, as one group is blue, one group is white, control this two groups of LED lamp string load flickers by integrated circuit U1, these two groups of LED lamp strings are loaded between these two kinds of colors jump flicker to change and slowly gradually change, each LED lamp is rested on the color of this LED lamp.

In Fig. 2, the pin 17 of integrated circuit U1 is output, the pin 17 of integrated circuit U1 is connected on the base stage of triode Q6 by resistance R 19, the grounded emitter of triode Q6, resistance R 20 is connected on the negative pole place (voltage is 5 volts) of voltage stabilizing didoe D3 herein, collector electrode and 20 of resistance R at triode Q6 are parallel with the LED lamp string load that one group of a plurality of LED is formed, and the load of this group LED lamp string is controlled its flicker by integrated circuit U1.

The above only is preferred embodiment of the present utility model, and all equalizations of being done with the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.

Claims

1.LED the lamp cascade control circuit comprises the battery pack (battery) that 1.5 volts of batteries of two joints are connected, and it is characterized in that: also comprise booster circuit that is provided with integrated circuit (U7) and the output circuit that is provided with integrated circuit (U1); Described booster circuit comprises integrated circuit (U7), two electric capacity (CIN, COUT), two resistance (R1, R2), inductance (L1), metal-oxide-semiconductor (M1) and voltage stabilizing didoe (D3), and described output circuit comprises integrated circuit (U1), three resistance (R5, R7, R8) and triode (Q3); The pin (4) of described integrated circuit (U7) is connected back ground connection with the negative pole of described battery pack (battery), the pin (3) of described integrated circuit (U7) connects the positive pole of described battery pack (battery), the positive pole of described battery pack (battery) connects the positive pole of described electric capacity (CIN), the minus earth of described electric capacity (CIN), described inductance (L1) is connected between the drain electrode of the positive pole of described battery pack (battery) and described metal-oxide-semiconductor (M1), the source ground of described metal-oxide-semiconductor (M1), the grid of described metal-oxide-semiconductor (M1) connects the pin (5) of integrated circuit (U7), the pin (1) of described integrated circuit (U7) is by described resistance (R2) back ground connection, described resistance (R1) is connected between two pin (1) and (2) of described integrated circuit (U7), the drain electrode of described metal-oxide-semiconductor (M1) connects the positive pole of described voltage stabilizing didoe (D3), the negative pole of described voltage stabilizing didoe (D3) respectively with the pin (2) of described integrated circuit (U7), the positive pole of described electric capacity (COUT), two pin (1) of described integrated circuit (U1) are connected with (2), the minus earth of described electric capacity (COUT), two pin (9) of described integrated circuit (U1) and (10) ground connection, two pin (2) and (3) of described integrated circuit (U1) have described resistance (R5) indirectly, the pin (16) of described integrated circuit (U1) connects the collector electrode of described triode (Q3), the emitter of described triode (Q3) connects the pin (1) of described integrated circuit (U1), the emitter of described triode (Q3) and base stage have described resistance (R7) indirectly, and the base stage of described triode (Q3) and ground have described resistance (R8) indirectly.

2. LED lamp cascade control circuit according to claim 1 is characterized in that: described metal-oxide-semiconductor (M1) is a N channel-type metal-oxide-semiconductor.

3. LED lamp cascade control circuit according to claim 1 and 2 is characterized in that: be connected to reset key (reset) between two pin (13) of described integrated circuit (U1) and (1).