CN220107963U

CN220107963U - Single-channel touch induction switch control chip

Info

Publication number: CN220107963U
Application number: CN202321325146.4U
Authority: CN
Inventors: 孙占龙; 戴继加
Original assignee: Shenzhen Meisi Micro Semiconductor Co ltd
Current assignee: Shenzhen Meisi Micro Semiconductor Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-11-28
Anticipated expiration: 2033-05-29

Abstract

The utility model discloses a single-channel touch sensing switch control chip, which comprises a voltage stabilizing circuit, a touch circuit and a voltage-reducing conduction circuit, wherein the touch circuit comprises a touch chip U1 with the model of SGL8022W and a touch KEY KEY1, the voltage-reducing conduction circuit is connected to the 7 th pin of the touch chip U1, the voltage-reducing conduction circuit comprises a resistor R2 and a triode Q1, the first end of the resistor R2 is connected with the 7 th pin of the touch chip U1, and the second end of the resistor R2 is connected with the base electrode of the NPN triode Q1; the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is connected with the direct current motor M; the 6 th pin and the 1 st pin of the touch chip U1 are connected, and the voltage stabilizing circuit is connected to one side of the touch chip U1. The single-channel touch sensing switch is matched with the voltage stabilizing circuit, the voltage reducing conducting circuit and the like, so that the single-key touch control of the electric load switch can be realized, and the single-key touch sensing switch can be widely applied to intelligent household equipment such as fans, ventilating fans and the like.

Description

Single-channel touch induction switch control chip

Technical Field

The utility model relates to the field of control chips, in particular to a single-channel touch induction switch control chip.

Background

Along with popularization and application of automatic and intelligent equipment and development of touch equipment, various touch-controllable man-machine interactive household equipment gradually appears in society, and SGL8022W is a single-channel touch chip for LED light brightness adjustment and switch control. The chip can realize touch switch control and brightness adjustment of LED lamplight, and has good power supply interference resistance and mobile phone interference characteristics. EFT can reach more than 2 KV; under the condition of short-distance and multi-angle mobile phone interference, the touch response sensitivity and reliability are not affected.

Therefore, the SGL8022W is widely used in home appliances, and a single SGL8022W only has a touch control function, and when the SGL8022W is matched with home appliances, such as fans, the SGL8022W is required to have a certain speed regulation function.

Disclosure of Invention

The utility model aims to provide a single-channel touch-sensitive switch control chip to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the single-channel touch sensing switch control chip comprises a voltage stabilizing circuit, a touch circuit and a voltage reduction conduction circuit, wherein the touch circuit comprises a touch chip U1 with the model SGL8022W and a touch KEY KEY1, the voltage reduction conduction circuit is connected to a 7 th pin of the touch chip U1, the voltage reduction conduction circuit comprises a resistor R2 and a triode Q1, a first end of the resistor R2 is connected with the 7 th pin of the touch chip U1, and a second end of the resistor R2 is connected with a base electrode of the NPN triode Q1; the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is connected with the direct current motor M; the 6 th pin and the 1 st pin of the touch chip U1 are connected, the voltage stabilizing circuit is connected to one side of the touch chip U1 and comprises resistors R1, R3 and R4, capacitors C1, C2, C3, C4 and C5, a voltage stabilizing chip U2 with the model of L7805 and a rectifier bridge D0, wherein the 1 st pin input end of the voltage stabilizing chip U2 is connected with the rectifier bridge D0, the 2 nd pin of the voltage stabilizing chip U2 is grounded, the 3 rd pin output end of the voltage stabilizing chip U2 is connected with the resistor R1, and the voltage stabilizing circuit is connected to the 1 st pin of the touch chip U1 through the resistor R1; the tail ends of the capacitors C1 and C2 are connected with each other and grounded, and the head ends of the capacitors are respectively connected with the 1-pin input end and the 3-pin output end of the voltage stabilizing chip U2; the first end of the resistor R4 is connected with the head end of the capacitor C2 and the resistor R1, and the second end of the resistor R4 is connected with the light emitting diode D1 and grounded; the tail ends of the capacitors C3 and C4 are connected with the ground, the head ends of the capacitors C3 and C4 are connected with each other and are communicated with the 3 rd pin of the touch chip U1, the first end of the capacitor C2 is connected with the 2 nd pin of the touch chip U1, and the second end of the capacitor C2 is connected with the tail end of the capacitor C4 and is grounded; the first end of the resistor R3 is connected with the rectifier bridge D0, and the second end of the resistor R3 is connected with the direct current motor M.

Preferably, the touch KEY1 is connected to the 5 th pin of the touch chip U1, the touch KEY1 is used for collecting user control actions, and after being processed by the touch chip U1, the 6 th pin of the touch KEY is used for sending out a control signal, and the control signal is reduced in voltage by the resistor R2, is conducted by the NPN triode Q1 switch, and enables the direct current motor M to be grounded.

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

the utility model adopts the single-channel touch sensing switch to match with the voltage stabilizing circuit, the voltage reducing conducting circuit and the like, can realize single-key touch control of the electric load switch, can control the rotating speed of the electric load, and can be widely applied to intelligent household equipment such as fans, ventilating fans and the like.

Drawings

FIG. 1 is a block diagram of a module of the present utility model;

fig. 2 is a schematic circuit diagram of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, the present utility model provides a technical solution: the single-channel touch sensing switch control chip comprises a voltage stabilizing circuit, a touch circuit and a voltage reduction conduction circuit, wherein the touch circuit comprises a touch chip U1 with the model SGL8022W and a touch KEY KEY1, the voltage reduction conduction circuit is connected to a 7 th pin of the touch chip U1, the voltage reduction conduction circuit comprises a resistor R2 and a triode Q1, a first end of the resistor R2 is connected with the 7 th pin of the touch chip U1, and a second end of the resistor R2 is connected with a base electrode of the NPN triode Q1; the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is connected with the direct current motor M; the 6 th pin and the 1 st pin of the touch chip U1 are connected, the voltage stabilizing circuit is connected to one side of the touch chip U1 and comprises resistors R1, R3 and R4, capacitors C1, C2, C3, C4 and C5, a voltage stabilizing chip U2 with the model of L7805 and a rectifier bridge D0, wherein the 1 st pin input end of the voltage stabilizing chip U2 is connected with the rectifier bridge D0, the 2 nd pin of the voltage stabilizing chip U2 is grounded, the 3 rd pin output end of the voltage stabilizing chip U2 is connected with the resistor R1, and the voltage stabilizing circuit is connected to the 1 st pin of the touch chip U1 through the resistor R1; the tail ends of the capacitors C1 and C2 are connected with each other and grounded, and the head ends of the capacitors are respectively connected with the 1-pin input end and the 3-pin output end of the voltage stabilizing chip U2; the first end of the resistor R4 is connected with the head end of the capacitor C2 and the resistor R1, and the second end of the resistor R4 is connected with the light emitting diode D1 and grounded; the tail ends of the capacitors C3 and C4 are connected with the ground, the head ends of the capacitors C3 and C4 are connected with each other and are communicated with the 3 rd pin of the touch chip U1, the first end of the capacitor C2 is connected with the 2 nd pin of the touch chip U1, and the second end of the capacitor C2 is connected with the tail end of the capacitor C4 and is grounded; the first end of the resistor R3 is connected with the rectifier bridge D0, and the second end of the resistor R3 is connected with the direct current motor M.

Preferably, the touch KEY1 is connected to the 5 th pin of the touch chip U1, the touch KEY1 is used for collecting control actions of a user, and after being processed by the touch chip U1, a control signal is sent out by the 6 th pin of the touch KEY1, and is reduced in voltage by the resistor R2, and is conducted by the NPN triode Q1 switch, and the direct current motor M is grounded, so that the direct current motor M works, and the regulation and control of the direct current motor M are completed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The single-channel touch sensing switch control chip is characterized by comprising a voltage stabilizing circuit, a touch circuit and a voltage reduction conduction circuit, wherein the touch circuit comprises a touch chip U1 with the model of SGL8022W and a touch KEY KEY1, the voltage reduction conduction circuit is connected to the 7 th pin of the touch chip U1, the voltage reduction conduction circuit comprises a resistor R2 and a triode Q1, the first end of the resistor R2 is connected with the 7 th pin of the touch chip U1, and the second end of the resistor R2 is connected with the base electrode of the NPN triode Q1; the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is connected with the direct current motor M; the 6 th pin and the 1 st pin of the touch chip U1 are connected, the voltage stabilizing circuit is connected to one side of the touch chip U1 and comprises resistors R1, R3 and R4, capacitors C1, C2, C3, C4 and C5, a voltage stabilizing chip U2 with the model of L7805 and a rectifier bridge D0, wherein the 1 st pin input end of the voltage stabilizing chip U2 is connected with the rectifier bridge D0, the 2 nd pin of the voltage stabilizing chip U2 is grounded, the 3 rd pin output end of the voltage stabilizing chip U2 is connected with the resistor R1, and the voltage stabilizing circuit is connected to the 1 st pin of the touch chip U1 through the resistor R1; the tail ends of the capacitors C1 and C2 are connected with each other and grounded, and the head ends of the capacitors are respectively connected with the 1-pin input end and the 3-pin output end of the voltage stabilizing chip U2; the first end of the resistor R4 is connected with the head end of the capacitor C2 and the resistor R1, and the second end of the resistor R4 is connected with the light emitting diode D1 and grounded; the tail ends of the capacitors C3 and C4 are connected with the ground, the head ends of the capacitors C3 and C4 are connected with each other and are communicated with the 3 rd pin of the touch chip U1, the first end of the capacitor C2 is connected with the 2 nd pin of the touch chip U1, and the second end of the capacitor C2 is connected with the tail end of the capacitor C4 and is grounded; the first end of the resistor R3 is connected with the rectifier bridge D0, and the second end of the resistor R3 is connected with the direct current motor M.

2. The single-channel touch-sensitive switch control chip of claim 1, wherein: the touch KEY1 is connected to the 5 th pin of the touch chip U1, the touch KEY1 is used for collecting user control actions, and after being processed by the touch chip U1, a control signal is sent out by the 6 th pin, and is reduced in voltage by the resistor R2, and is conducted by the NPN triode Q1 switch, and the direct current motor M is grounded.