CN213213888U

CN213213888U - LED control topological structure

Info

Publication number: CN213213888U
Application number: CN202022511953.8U
Authority: CN
Inventors: 孟斌
Original assignee: Ideal Jacobs Xiamen Corp
Current assignee: Ideal Jacobs Xiamen Corp
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-05-14
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a LED control topological structure, this structure includes: the LED topological circuit comprises a Control Switch, a chip IC and an LED topological circuit, wherein a Gnd terminal of the chip IC is grounded, a Switch terminal of the chip IC is connected with the Control Switch, the other end of the Control Switch is grounded, a Control A terminal of the chip IC is connected with a cathode of the LED1, an anode of the LED2 and an anode of the LED3, a Control B terminal of the chip IC is connected with an anode of the LED1, a cathode of the LED2, a cathode of the LED4 and an anode of the LED5, a Control C terminal of the chip IC is connected with an anode of the LED4, a cathode of the LED5 and a cathode of the LED3, the LED topological circuit comprises the LED1, the LED2, the LED3, the LED4 and the LED5, and the LED topological circuit is a bridge topological structure for driving 5 LED indicator lamps by 3 lines. The control switch is adopted to control the work of the chip, and the chip control end controls the work of the topological LED indicator lamp, so that the higher utilization rate of the circuit structure can be effectively realized.

Description

LED control topological structure

Technical Field

The utility model relates to a membrane switch field, concretely relates to LED control topological structure.

Background

The membrane switch is composed of a certain flexible insulating material layer and a conductive material layer, and is a multilayer structure non-self-locking key switch. The membrane switch is an operation system integrating a key function, an indicating element and an instrument panel, wherein an indicating lamp LED is mainly driven in two modes, one mode is that a fixed anode and a fixed cathode drive the LED indicating lamp, and the other mode is that a matrix drive the LED indicating lamp, and the space utilization rate of the two driving modes is low. Along with electronic equipment's frivolousization and miniaturization, require the structural higher utilization ratio that has of circuit, in order to realize the structural higher utilization ratio of circuit, the utility model relates to a LED control topological structure.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a LED control topological structure adopts control switch control chip's work, and the work of the topological LED pilot lamp of chip control end control can realize the higher utilization ratio in the circuit structure effectively.

The technical scheme of the utility model is specifically as follows:

an LED control topology comprising: control switch, chip IC and LED topology circuit.

Further, the Gnd terminal of the chip IC is grounded, the Switch terminal of the chip IC is connected with a control Switch, and the other end of the control Switch is grounded.

Further, a Control A terminal of the chip IC is connected with a negative electrode of the LED1, a positive electrode of the LED2 and a positive electrode of the LED3, a Control B terminal of the chip IC is connected with a positive electrode of the LED1, a negative electrode of the LED2, a negative electrode of the LED4 and a positive electrode of the LED5, and a Control C terminal of the chip IC is connected with a positive electrode of the LED4, a negative electrode of the LED5 and a negative electrode of the LED 3.

Further, the LED topological circuit comprises an LED1, an LED2, an LED3, an LED4 and an LED5, and is a bridge topological structure of 3-line driving 5 LED indicator lamps.

Further, the LED topological circuit adopts a bridge topological structure of 3 lines driving 5 LED indicating lamps, and 1 or 2 LED indicating lamps can emit light respectively.

Further, the chip IC may output N > -2 output control terminals, and accordingly, a bridge topology structure of the LED topology circuit, where N > -2 line drivers, M > -2 LED indicators, may be implemented, where the number M of LED indicators is greater than or equal to the number N of output control terminals of the chip IC.

By the arrangement, a few driving wires can drive a plurality of LED topological circuits, and the higher utilization rate of the circuit structure is realized.

(III) advantageous effects

The utility model discloses a LED control topology adopts control switch control chip's work, and the work of the topological LED pilot lamp of chip control end control can realize the structural higher utilization ratio of circuit effectively.

Drawings

Fig. 1 is a schematic structural diagram of the LED control topology of the present invention.

Reference numerals: i, controlling a switch; II, chip IC; III, LED topological circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an LED control topology according to the present invention.

The utility model provides a pair of LED control topological structure, include: the LED topological circuit comprises a Control Switch I, a chip IC II and an LED topological circuit III, wherein a Gnd terminal of the chip IC II is grounded, a Switch terminal of the chip IC II is connected with the Control Switch I, the other end of the Control Switch I is grounded, a Control A terminal of the chip IC II is connected with a cathode of the LED1, an anode of the LED2 and an anode of the LED3, a Control B terminal of the chip IC II is connected with an anode of the LED1, a cathode of the LED2, a cathode of the LED4 and an anode of the LED5, a Control C terminal of the chip IC II is connected with an anode of the LED4, a cathode of the LED5 and a cathode of the LED3, and the LED topological circuit III comprises the LED1, the LED2, the LED3, the LED4 and the LED5 and is a bridge topological structure for driving 5 LED indicating lamps by 3 lines.

The utility model discloses the theory of operation is implemented specifically: when the control switch I acts, the chip IC II controls the terminal A to output a high level, the terminal B and the terminal C are at a low level, and an LED2 indicator light and an LED3 indicator light in the LED topology circuit III emit light; the chip IC II controls the terminal A to output a high level, the terminal B is a high level, the terminal C is a low level, and an LED3 indicator lamp and an LED5 indicator lamp in the LED topology circuit III emit light; the chip IC II controls the terminal A to output a high level, the terminal B is a low level, the terminal C is a high level, and an LED2 indicator lamp and an LED4 indicator lamp in the LED topology circuit III emit light; the chip IC II controls the terminal A to output low level, the terminal B and the terminal C are high level at the moment, and an LED1 indicator lamp in the LED topology circuit III emits light; the chip IC II controls the terminal A to output a low level, the terminal B is a high level, the terminal C is a low level, and an LED1 indicator lamp and an LED5 indicator lamp in the LED topology circuit III emit light; chip IC II control A terminal output low level, and the B terminal is low level and C terminal is high level this moment, LED4 pilot lamp in the LED topological circuit III is luminous.

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

Claims

1. An LED control topology, comprising: the LED indicator lamp comprises a Control Switch (I), a chip IC (II) and an LED topological circuit (III), wherein the Gnd terminal of the chip IC (II) is grounded, the Switch terminal of the chip IC (II) is connected with the Control Switch (I), the other end of the Control Switch (I) is grounded, the Control A terminal of the chip IC (II) is connected with the cathode of the LED1, the anode of the LED2 and the anode of the LED3, the Control B terminal of the chip IC (II) is connected with the anode of the LED1, the cathode of the LED2, the cathode of the LED4 and the anode of the LED5, the Control C terminal of the chip IC (II) is connected with the anode of the LED4, the cathode of the LED5 and the cathode of the LED3, the LED topological circuit (III) comprises the LED1, the LED2, the LED3, the LED4 and the LED5, and is a bridge-type topological structure with 3-wire drive 5 LED indicator lamps, and 1 or 2 LED indicator lamps can emit light respectively.

2. An LED control topology according to claim 1, characterized in that the LED topology (iii) can be a 3-wire bridge topology with M > -3 LED indicators.

3. An LED control topology according to claim 1, characterized in that the LED topology (iii) can be a bridge topology with N > -2 line driven 5 LED indicator lights.

4. The LED control topology according to claim 3, wherein the LED topology circuit (iii) can be a bridge topology structure with N > -2 line drivers M > -2 LED indicators, where the number M of LED indicators needs to be equal to or greater than N of the output control terminals of the chip IC (ii).

5. An LED control topology according to claim 1, wherein said chip IC (ii) can output N > -2 output control terminals.