CN204205692U - Integrated IC is two-in-one for a kind of two-way three line - Google Patents

Abstract

The utility model discloses a two-way three-wire integrated IC two-in-one, which includes an AC/DC module and a control module. The control module includes a single-chip microcomputer U2 and LED1-4, and the LED1 is connected in series with LED2, a resistor R3, and a resistor R2. And the positive pole of LED2 is connected to the third pin of the single-chip microcomputer U2, the LED3 is connected in series with LED4, resistor R5, and resistor R4, and the positive pole of LED4 is connected to the second pin of the single-chip microcomputer U2, and the resistor R2 and the resistor R3 are connected to the single-chip microcomputer U2. The 7th pin, the 7th pin of the single-chip microcomputer U2 is connected between the resistor R4 and the resistor R5, and the 4th pin of the single-chip microcomputer U2 is connected to the AC/DC module. Through the control of the single-chip microcomputer U2, the electronic products can be charged quickly, and at the same time, the damage of the electronic products caused by the load change of the output interface is avoided. According to the characteristics of the triode, the voltage change is compensated.

Description

A two-way three-wire integrated IC two-in-one

technical field

The utility model relates to a circuit, specifically a two-way three-wire integrated IC two-in-one.

Background technique

Most portable electronic products have built-in batteries. When the built-in battery is exhausted, an external charging device must be used to charge the battery; the charging time of the battery is determined by the current of the charger. At present, most of them cannot provide a large current for charging the battery, so the charging time is long, which is not suitable for the fast pace of modern people. At the same time, due to the increase of the load on the output interface, the voltage changes during the plugging and unplugging process, and this voltage change is easy to cause damage to electronic products.

Utility model content

The purpose of this utility model is to provide a two-way three-wire integrated IC two-in-one to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A two-way three-wire integrated IC two-in-one, including an AC/DC module and a control module, the control module includes a single-chip microcomputer U2 and LED1-4, the LED1 is connected in series with LED2, resistor R3, and resistor R2, and the positive electrode of LED2 is connected to The third pin of the single-chip microcomputer U2, the LED3 is connected in series with LED4, resistor R5, and resistor R4, and the anode of the LED4 is connected to the second pin of the single-chip microcomputer U2, and the seventh pin of the single-chip microcomputer U2 is connected between the resistor R2 and the resistor R3. The 7th pin of U2 is connected between the resistor R4 and the resistor R5, the 4th pin of the single-chip microcomputer U2 is connected to the AC/DC module; the 5th pin of the single-chip microcomputer U2 is connected to the emitter of the transistor Q1 through the resistor R16, and the transistor Q1 The emitter and collector of the transistor are respectively grounded and connected to the third pin of the output port J1, while the sixth pin of the microcontroller U2 is connected to the emitter of the transistor Q2 through the resistor R17, and the emitter and collector of the transistor Q2 are respectively grounded and connected to the output port The second pin of J1; the first pin of the output port J1 is connected to the output end of the AC/DC module, the fourth pin of the output port J1 is grounded, and the voltage of the output port J1 is stabilized through the transistor Q1 and the transistor Q2.

As a further solution of the present invention: a resistor R6 and a resistor R6 are connected in series on the fourth pin of the single chip microcomputer U2 in sequence, and the other end of the resistor R6 is connected to the AC/DC module.

Compared with the prior art, the beneficial effect of the utility model is: through the control of the single-chip microcomputer U2, the electronic product can be charged quickly, and at the same time, the damage of the electronic product caused by the load change of the output interface is avoided. Make compensation.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1, in the embodiment of the utility model, a two-way three-wire integrated IC two-in-one, including an AC/DC module and a control module. Described control module comprises single-chip microcomputer U2 and LED1-4, and described LED1 is connected in series with LED2, resistance R3, resistance R2, and the anode of LED2 connects the 3rd pin of single-chip microcomputer U2, and described LED3 is connected in series with LED4, resistance R5, resistance R4, and The positive pole of LED4 is connected to the second pin of the single-chip microcomputer U2, the seventh pin of the single-chip microcomputer U2 is connected between the resistor R2 and the resistor R3, and the seventh pin of the single-chip microcomputer U2 is connected between the resistor R4 and the resistor R5; the first pin of the single-chip microcomputer U2 The resistor R6 and the resistor R6 are connected in series on the pin 4, and the other end of the resistor R6 is connected to the AC/DC module, so as to monitor the output voltage and make the single-chip microcomputer run stably;

The fifth pin of the single-chip microcomputer U2 is connected to the emitter of the triode Q1 through the resistor R16, and the emitter and the collector of the triode Q1 are respectively grounded and connected to the third pin of the output port J1, while the sixth pin of the single-chip microcomputer U2 is connected to the third pin of the output port J1 through the resistor R17. The emitter of the triode Q2, and the emitter and collector of the triode Q2 are respectively grounded and connected to the second pin of the output port J1; the first pin of the output port J1 is connected to the output end of the AC/DC module, and the first pin of the output port J1 The 4-pin is grounded, and the voltage of the output port J1 is stabilized through the triode Q1 and the triode Q2, so as to prevent voltage fluctuation from causing damage to electrical appliances.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (2)

1. A two-way three-wire integrated IC two-in-one, including an AC/DC module and a control module, is characterized in that the control module includes a single-chip microcomputer U2 and LED1-4, and the LED1 is connected in series with LED2, resistor R3, and resistor R2 , and the positive pole of LED2 is connected to the third pin of the single-chip microcomputer U2, the LED3 is connected in series with LED4, resistor R5, and resistor R4, and the positive pole of LED4 is connected to the second pin of the single-chip microcomputer U2, and the single-chip microcomputer U2 is connected between the resistor R2 and the resistor R3 The 7th pin of the single-chip microcomputer U2 is connected between the resistor R4 and the resistor R5, the 4th pin of the single-chip microcomputer U2 is connected to the AC/DC module; the 5th pin of the single-chip microcomputer U2 is connected to the transistor Q1 through the resistor R16 The emitter, while the emitter and collector of the triode Q1 are respectively grounded and connected to the third pin of the output port J1, and the sixth pin of the microcontroller U2 is connected to the emitter of the triode Q2 through the resistor R17, and the emitter and collector of the triode Q2 Ground and connect to the second pin of the output port J1 respectively; the first pin of the output port J1 is connected to the output end of the AC/DC module, the fourth pin of the output port J1 is grounded, and the output port J1 is stabilized through the transistor Q1 and the transistor Q2. Voltage. 2. A two-way three-wire integrated IC two-in-one according to claim 1, characterized in that the fourth pin of the single-chip microcomputer U2 is connected in series with a resistor R6 and a resistor R6 in sequence, and the other end of the resistor R6 is connected to AC/DC module.