CN213126544U

CN213126544U - Control circuit of direct-current two-wire two-path timing eight-function LED Christmas lamp string

Info

Publication number: CN213126544U
Application number: CN202021858511.4U
Authority: CN
Inventors: 张记刚
Original assignee: Ningbo Yongen Semiconductor Technology Co ltd
Current assignee: Ningbo Yongen Semiconductor Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-04
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a control circuit of eight function LED christmas lamp cluster of two ways timing of direct current two lines, including direct current power supply, main control circuit and LED christmas lamp cluster, main control circuit includes driver chip, dabs switch and crystal oscillator circuit, wherein driver chip adopts SOP8 encapsulated form, including 8 pins, be power positive end VDD, dabs the trigger foot SI of switch, 2 output L1 and L2, mode switching end OPT1, light-operated/crystal oscillator end XI, crystal oscillator end XO and power negative terminal GND respectively. The utility model provides a control circuit of two way eight function LED christmas lamp strings of timing of direct current two lines can make things convenient for, stably for LED christmas lamp string provides various application functions, adopts the CMOS technology, self low power dissipation, and operating voltage is wide, and the interference killing feature is strong to eight sections function selection are used, but press the key selection function section.

Description

Control circuit of direct-current two-wire two-path timing eight-function LED Christmas lamp string

Technical Field

The utility model belongs to the technical field of electronic circuit, especially, relate to a control circuit of eight function LED christmas lights cluster of two way timing of direct current two lines.

Background

An LED, i.e., a light emitting diode, is a solid-state semiconductor device capable of converting electrical energy into visible light, which can directly convert electricity into light. The heart of the LED is a semiconductor wafer, one end of the wafer is attached to a support, the other end of the wafer is a cathode, and the other end of the wafer is connected with an anode of a power supply, so that the whole wafer is packaged by epoxy resin. The semiconductor wafer is composed of two parts, one of which is a P-type semiconductor in which holes predominate and the other of which is an N-type semiconductor in which electrons predominate. When the two semiconductors are connected, a P-N junction is formed between them. When current is applied to the wafer through the wire, electrons are pushed to the P region where they recombine with holes and then emit energy in the form of photons, which is the principle of LED lamp illumination. Therefore, the LED has the advantages of long service life, high lighting effect, no radiation, impact resistance, low power consumption and the like, and is widely applied to the field of illumination.

The LED Christmas lamp string is one kind of LED lamp and is used mainly in various festivals. With the increasing demands of consumers, the LED decoration is required to realize the change of brightness or color, so that it can achieve the gorgeous lighting effect. The LED lamp string has the advantages that two LEDs are positively and negatively connected and packaged in the same lamp bead and are connected in series to form the LED lamp string in the existing market, but the existing light emitting mode is simple, the gorgeous light emitting effect cannot be achieved, and the problem of single control and sum frequency flash cannot be solved at the same time.

SUMMERY OF THE UTILITY MODEL

In order to the above situation, the utility model provides a control circuit of eight function LED christmas lamp cluster of two ways timing of direct current two lines, this control circuit of two ways timing eight function LED christmas lamp clusters of direct current two lines can make things convenient for, stably provide various application functions for LED christmas lamp cluster, adopt the CMOS technology, self low power dissipation, operating voltage is wide, and the interference killing feature is strong to eight sections function selection are used, but the function section is selected to the button.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

control circuit of eight function LED christmas lamp cluster of two circuit timing of direct current, including direct current power supply, main control circuit and LED christmas lamp cluster, main control circuit includes driver chip, dabs switch and crystal oscillator circuit, wherein driver chip adopts SOP8 encapsulation form, includes 8 pins, is power positive terminal VDD, dabs trigger foot SI, 2 output L1 and L2 of switch, mode switch end OPT1, light-operated/crystal oscillator end XI, crystal oscillator end XO and power negative terminal GND respectively.

The utility model discloses further preferred scheme: the LED Christmas lamp string is formed by connecting two LED lamps in a positive and negative mode, is connected in parallel to form an LED lamp string and is packaged in the same lamp bead.

The utility model discloses further preferred scheme: and two ends of the LED Christmas lamp string are respectively and electrically connected with the output ends L1 and the L2 packaging pins.

The utility model discloses further preferred scheme: the light touch switch is electrically connected with a trigger pin SI packaging pin of the light touch switch, a grounding end and a negative electrode of the direct-current power supply.

The utility model discloses further preferred scheme: and the power supply positive end VDD packaging pin is electrically connected with the positive electrode of the direct-current power supply, the capacitor and the power switch.

The utility model discloses further preferred scheme: and the capacitor is connected with the positive electrode and the negative electrode of the direct-current power supply.

The utility model discloses further preferred scheme: and the power supply negative end GND packaging pin is electrically connected with the grounding end and the DC power supply negative electrode.

The utility model discloses further preferred scheme: the mode switching terminal OPT1 packaging pin is electrically connected with the power switch.

The utility model discloses further preferred scheme: the crystal oscillator circuit is electrically connected with a crystal oscillator and a light control/crystal oscillator end XI packaging pin and a crystal oscillator end XO packaging pin.

Compared with the prior art, the utility model has the advantages of:

1) the control circuit of the direct-current two-wire two-path timing eight-function LED Christmas lamp string provided by the utility model adopts the SOP8 packaging type driving chip to control the LED lamp, only one tact switch and one mode selection switch are needed to realize the control function of eight functions of the LED, and in addition, the driving chip adopts the CMOS process, so that the power consumption is low, the working voltage is wide, and the anti-interference capability is strong;

2) the utility model provides a flow two lines two way timing eight function LED Christmas lamp cluster's control circuit has eight sections function selection applications, but the button selection function section, that is totally eight sections modes, two switches (light touch switch and switch), switch control power, light touch switch mode conversion, press and turn to next mode, eight sections circulation;

3) the utility model provides a flow two lines two way control circuit of eight function LED christmas lamp cluster regularly is connected with direct current power supply positive negative pole, makes its area fall electric memory function, and the mode that goes up the electricity back again and begin work before falling the electricity last time.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a schematic diagram of a driving chip package of a control circuit of the dc two-wire two-path timing eight-function LED christmas lamp string of the present invention;

fig. 2 is a schematic diagram of the control circuit of the two-way timing eight-function LED christmas lamp string with two direct currents and two lines.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-2: the utility model provides a control circuit of eight function LED christmas lamp strings of two circuit timing of direct current, includes DC power supply, main control circuit and LED christmas lamp string, and main control circuit includes driver chip, dabs switch and crystal oscillator circuit, wherein driver chip adopts SOP8 encapsulated form, includes 8 pins, is power positive terminal VDD, dabs the trigger foot SI of switch, 2 output L1 and L2, mode switch end OPT1, light-operated/crystal oscillator end XI, crystal oscillator end XO and power negative terminal GND respectively.

The LED Christmas lamp string is formed by connecting two LED lamps in a positive and negative way, connecting the two LED lamps in parallel to form an LED lamp string and packaging the LED lamp string in the same lamp bead; and two ends of the LED Christmas lamp string are respectively and electrically connected with the output ends L1 and the L2 packaging pins.

The light touch switch is electrically connected with a trigger pin SI packaging pin of the light touch switch, a grounding end and a negative electrode of the direct-current power supply.

And the power supply positive end VDD packaging pin is electrically connected with the positive electrode of the direct-current power supply, the capacitor and the power switch.

The capacitor is connected with the positive electrode and the negative electrode of the direct-current power supply, so that the capacitor has a power failure memory function through the connection, and the capacitor starts to work from a mode before last power failure after being electrified again

And the power supply negative end GND packaging pin is electrically connected with the grounding end and the DC power supply negative electrode.

The mode switching terminal OPT1 packaging pin is electrically connected with the power switch.

The crystal oscillator circuit is electrically connected with a crystal oscillator and a light control/crystal oscillator end XI packaging pin and a crystal oscillator end XO packaging pin.

Through the connection, the control circuit of the direct-current two-wire two-path timing eight-function LED Christmas lamp string adopts the SOP8 packaging form driving chip (as shown in figure 1) to control the LED lamp, and only one touch switch and one mode selection switch are needed, so that the eight-function control function of the LED lamp can be realized, namely, the power switch controls the power supply, the touch switch mode is switched, the next mode is pressed, and the eight-section circulation is realized.

The lamp flashing mode is a normal direct current eight-function mode, specifically 1) various functions are automatically and continuously changed; 2) the wave type forward and backward movement automatically changes; 3) race horse type automatic change; 4) the single lamp is automatically changed gradually from bright to dark; 5) the race horse type advances and retreats, and the twinkling of stars automatically changes; 6) the two lamps are automatically changed gradually from bright to dark; 7) the star twinkling race horse type automatic change; 8) the LED is fixed and does not flash.

The control circuit of the direct-current two-wire two-path timing eight-function LED Christmas lamp string has the following specific effects: the mode switching end OPT1 is suspended in the air to be in a timing mode, the output ends L1 and L2 have output for 6h, no output is 18h, and 24h circulates; the crystal oscillator detection mode is available, and the crystal oscillator is not connected or is powered on without output; the mode switching end OPT1 is connected with the power supply positive end VDD and is in an untimely mode, and a crystal oscillator is not needed; the light touch switch is switched to a light flashing mode by short pressing; the output is closed after long pressing for 2 seconds; and after the switch-off, the switch-on is pressed for a short time and output again, and the switch-on is timed from the new switch-on.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is to the utility model discloses going on the detailed introduction, having used specific individual example to right in this paper the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. Control circuit of eight function LED christmas lamp cluster of two ways timing of direct current two lines, including DC power supply, main control circuit and LED christmas lamp cluster, main control circuit includes driver chip, dabs switch and crystal oscillator circuit, its characterized in that: the driving chip is packaged in an SOP8 mode and comprises 8 pins, namely a power supply positive terminal VDD, a trigger pin SI of a light touch switch, 2 output terminals L1 and L2, a mode switching terminal OPT1, a light control/crystal oscillator terminal XI, a crystal oscillator terminal XO and a power supply negative terminal GND;

the LED Christmas lamp string is formed by connecting two LED lamps in a positive and negative way, connecting the two LED lamps in parallel to form an LED lamp string and packaging the LED lamp string in the same lamp bead;

the crystal oscillator circuit is electrically connected with a crystal oscillator and a light control/crystal oscillator end XI packaging pin and a crystal oscillator end XO packaging pin;

2. The control circuit of the direct current two-wire two-way timing eight-function LED Christmas lamp string according to claim 1, characterized in that: and two ends of the LED Christmas lamp string are respectively and electrically connected with the output ends L1 and the L2 packaging pins.

3. The control circuit of the direct current two-wire two-way timing eight-function LED Christmas lamp string according to claim 1, characterized in that: the light touch switch is electrically connected with a trigger pin SI packaging pin of the light touch switch, a grounding end and a negative electrode of the direct-current power supply.

4. The control circuit of the direct current two-wire two-way timing eight-function LED Christmas lamp string according to claim 1, characterized in that: and the power supply positive end VDD packaging pin is electrically connected with the positive electrode of the direct-current power supply, the capacitor and the power switch.

5. The control circuit of the direct current two-wire two-way timing eight-function LED Christmas lamp string according to claim 4, wherein: and the capacitor is connected with the positive electrode and the negative electrode of the direct-current power supply.

6. The control circuit of the direct current two-wire two-way timing eight-function LED Christmas lamp string according to claim 1, characterized in that: and the power supply negative end GND packaging pin is electrically connected with the grounding end and the DC power supply negative electrode.