CN206164921U - A three-terminal regulator IC circuit - Google Patents

Abstract

The utility model discloses a three-terminal voltage stabilization IC circuit, which comprises a packaging body, an input pin Vin, an output pin OUT and a grounding pin GND which are arranged on the packaging body, wherein a first voltage-stabilizing tube V1 and a second voltage-stabilizing tube V2 are arranged in the packaging body; the negative electrode of the first voltage-regulator tube V1 is connected to an input pin Vin, the positive electrode of the second voltage-regulator tube V2 is connected to a ground pin GND, and the positive electrode of the first voltage-regulator tube V1 and the negative electrode of the second voltage-regulator tube V2 are both connected to an output pin OUT. The utility model discloses the IC circuit is integrated in an IC circuit with two zener diode, and this three-terminal voltage regulator chip is small, and the welding is convenient, is convenient for improve production efficiency. In addition, as the two voltage stabilizing diodes in the IC circuit adopt the same batch of processes during processing, the performances of the two voltage stabilizing diodes are very close, and the stability of the IC circuit is improved.

Description

A three-terminal regulator IC circuit

technical field

The utility model relates to an IC circuit, in particular to a three-terminal voltage stabilizing IC circuit.

Background technique

As an important electronic component, Zener tube has a wide range of applications. In the design of the light strip, in order to prevent the LED lamp beads in the light strip from being burned by overvoltage, multiple Zener diodes are usually arranged in the light strip, and each Zener diode is used to stabilize the voltage at both ends of several LED lamp beads. In some occasions such as large buildings, the length of the light strip used can range from tens of meters to thousands of meters. Usually, the above-mentioned light strips are made by soldering Zener diodes and LED lamp beads on a flexible circuit board and covered with PVC pipes. Therefore, when there are a large number of voltage regulator tubes inside the light strip, the length of the flexible circuit board and the PVC tube occupied by the voltage regulator tubes occupies a considerable proportion of the length of the light strip.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a three-terminal voltage stabilizing IC circuit.

The technical scheme adopted by the utility model for solving the technical problem is: a three-terminal voltage stabilizing IC circuit, including a package body and an input pin Vin, an output pin OUT and a ground pin GND arranged on the package body, the The package body is provided with a first voltage regulator tube V1 and a second voltage regulator tube V2; the negative pole of the first voltage regulator tube V1 is connected to the input pin Vin, and the positive pole of the second voltage regulator tube V2 is connected to the ground lead The pin GND, the anode of the first regulator V1 and the cathode of the second regulator V2 are both connected to the output pin OUT.

IC circuit described in the utility model, its further design is:

The first voltage regulator tube V1 and the second voltage regulator tube V2 have the same specification.

The beneficial effects of the utility model are:

The IC circuit of the utility model integrates two voltage stabilizing diodes into one packaging body. Compared with two independent voltage stabilizing diodes, the three-terminal voltage stabilizing IC circuit has small volume and is convenient for welding. After the utility model IC circuit is applied to the light strip, the length of the flexible circuit board occupied by the voltage stabilizing function is reduced to half of the traditional design, and the length of the consumed PVC pipe is also correspondingly reduced, thereby reducing the production cost of the light strip , Improve the production efficiency of the light strip. In addition, since the two Zener diodes in the IC circuit are processed with the same batch of technology, the performance of the two Zener diodes is very close, thus improving the stability of the IC circuit.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is the working principle diagram of the utility model IC circuit;

Fig. 2 is the application schematic diagram of the IC circuit of the utility model.

detailed description

As shown in FIGS. 1-2 , the three-terminal voltage stabilizing IC circuit of the present invention includes a package body 1 and an input pin Vin, an output pin OUT and a ground pin GND arranged on the package body 1 . The package body 1 is provided with a first voltage regulator tube V1 and a second voltage regulator tube V2; the negative pole of the first voltage regulator tube V1 is connected to the input pin Vin, and the positive pole of the second voltage regulator tube V2 is connected to To the ground pin GND, the anode of the first voltage regulator V1 and the cathode of the second voltage regulator V2 are both connected to the output pin OUT.

Specifically, as shown in Figure 1, the utility model three-terminal voltage regulator IC circuit includes a package body 1, a first voltage regulator tube V1, a second voltage regulator tube V2, an input pin Vin, an output pin OUT and a ground pin GND. Wherein, the packaging body 1 is used to encapsulate and protect the first voltage regulator tube V1 and the second voltage regulator tube V2 inside. The material of the package body 1 is plastic, but not limited thereto, and it can also be in the form of ceramic or metal. The input pin Vin, the output pin OUT and the ground pin GND are all provided on the package body 1 . In the package body 1, the negative pole of the first voltage regulator tube V1 is connected to the input pin Vin, the positive pole of the second voltage regulator tube V2 is connected to the ground pin GND, the positive pole of the first voltage regulator tube V1 and the second voltage regulator tube The negative poles of V2 are both connected to the output pin OUT.

In this design, the first voltage regulator tube V1 and the second voltage regulator tube V2 have the same specifications. But not limited thereto, the specifications of the first voltage regulator tube V1 and the second voltage regulator tube V2 can also be flexibly adjusted according to actual needs.

Since the first voltage regulator tube V1 and the second voltage regulator tube V2 are integrated in the package body 1 , the volume of the IC circuit is small and soldering is convenient. Compared with the area and volume occupied by welding two voltage regulator tubes on the circuit board in the traditional design, the area occupied by the IC circuit after welding on the circuit board is only half of the traditional design, and the volume occupied also greatly reduced.

This IC circuit is especially suitable for the design of light strips. The light strip is usually provided with multiple LED lamp beads, and Zener diodes are usually provided at both ends of several LED lamp beads for protection. When the light strip is longer, the number of zener diodes used increases significantly, and the circuit board occupied by the zener diodes and the PVC pipe covering it also occupy a considerable proportion of the cost of the light strip. However, the application of the IC circuit of the utility model can greatly reduce the area of the circuit board and the length of the PVC pipe occupied by the voltage stabilizing function, so that the manufacturing cost of the light strip is reduced.

In addition, since the first Zener diode V1 and the second Zener diode V2 in this design use the same batch and process in the production process, the parameters and performance of the above two Zener diodes are very close, thus improving the performance of this design. IC circuit stability. Applying this IC circuit to the design of the light strip will improve the stability of the light strip.

Fig. 2 is the application schematic diagram of the IC circuit of the utility model. In the figure is a partial structure of a light strip, in which the IC circuit of the utility model is arranged, and between the input terminal Vin and the output terminal OUT of the IC circuit of the utility model are connected in series with a light emitting diode D1, a light emitting diode D2, a light emitting diode D3 and Resistor R1; LED D4, LED D5, LED D6 and resistor R2 are connected in series between the output terminal OUT of the IC circuit of the utility model and the ground terminal GND.

When the V+ terminal and V- terminal of the above light strip part structure are connected to the driving power supply, the LED D1, LED D2, and LED D3 are all lit up, and the LED D4, LED D5, and LED D6 are also lit. Bright. The IC circuit of the utility model can stabilize the voltage at both ends of the light-emitting diode D1, the light-emitting diode D2 and the light-emitting diode D3; Both are used for current limiting and voltage dividing.

Assuming that any one of the LEDs D1, D2 and D3 burns out, the current can flow into the input terminal Vin of the IC circuit of the utility model and flow out from the output terminal OUT, so that the LEDs D4, D5 and The light emitting diodes D6 are powered normally. Assuming that any one of the light-emitting diodes D4, D5 and D6 burns out, the current can flow into the output terminal OUT of the IC circuit of the present utility model, and flow out from the ground terminal GND, so that the light-emitting diode D1, the light-emitting diode D2 and LED D3 are powered normally.

The above descriptions are only the preferred implementation modes of the present utility model, as long as the technical solutions that achieve the purpose of the utility model by basically the same means all fall within the protection scope of the utility model.

Claims (2)

1. A three-terminal voltage stabilizing IC circuit, characterized in that: comprising a package body (1) and an input pin Vin, an output pin OUT and a ground pin GND arranged on the package body (1), the package body (1) There are a first voltage regulator tube V1 and a second voltage regulator tube V2 inside; the negative pole of the first voltage regulator tube V1 is connected to the input pin Vin, and the positive pole of the second voltage regulator tube V2 is connected to the ground The pin GND, the anode of the first voltage regulator V1 and the cathode of the second voltage regulator V2 are all connected to the output pin OUT. 2. The three-terminal voltage stabilizing IC circuit according to claim 1, wherein the first voltage stabilizing tube V1 and the second voltage stabilizing tube V2 have the same specifications.