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Emergency power supply display screen circuit

An emergency power supply and display screen technology, applied in the field of circuits, can solve the problems of high cost, inability to communicate with the outside world, and the emergency power supply display screen occupies a large space, and achieves the effect of reducing the volume, increasing the communication chip, and having a simple structure.

Active Publication Date: 2016-10-12
CHONGQING SANSAN ELECTRIC APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The emergency power display screen circuit provided by the present invention solves the problems that the emergency power display screen occupies a large space, has high cost and cannot communicate with the outside world

Method used

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  • Emergency power supply display screen circuit

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Embodiment Construction

[0016] An emergency power supply display circuit includes a control chip 1, a communication chip 2, a display module 3, an address latch chip 4, a bus transceiver module 5, and a clock circuit 6;

[0017] Among them, control chip 1 adopts chip type STC15W4K32S4 microcontroller, communication chip 2 adopts chip type SN75176 to increase communication with the outside world, display module 3 uses LCD1602 character liquid crystal, address latch chip 4 uses chip type 74AC373, bus transceiver module 5 SMD 74AC245 is adopted, and both resistors and capacitors are SMD, which reduces the volume occupied by components, thus greatly reducing the volume of the whole device.

[0018] The P3.0 and P3.1 ports of the control chip 1 are connected to the communication chip 2, the P0 port of the control chip 1 is connected to the display module 3, and the P3.5 of the control chip 1 is connected to the address latch chip 4, wherein the address latch chip 4 is connected with seven LED indicator li...

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PUM

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Abstract

The invention discloses an emergency power supply display screen circuit, which comprises a control chip, a communication chip, a display module, an address latch chip, a bus transceiving module and a clock circuit, wherein the control chip adopts a surface mount type STC15W4K32S4 single chip microcomputer; the communication chip adopts a surface mount type SN75176, and increase communication with the outside; the display module adopts an LCD 1602 character liquid crystal; the address latch chip adopts a surface mount type 74AC373; the bus transceiving module adopts a surface mount type 74AC245; a resistor and a capacitor adopt the surface mount type; and the communication chip is used for processing data transmitted by the control chip and transmitting the data to the outside. The emergency power supply display screen circuit adopts the method of welding elements in the display screen circuit in a surface mount manner, is additionally provided with the communication chip, and has the advantages of being simple in structure, reducing size, decreasing cost of an emergency power supply display screen, and increasing the function of communicating with the outside.

Description

technical field [0001] The invention belongs to the technical field of circuits, and relates to a circuit of a display screen, in particular to a display screen circuit of an emergency power supply. Background technique [0002] With the continuous updating of electronic products, traditional electronic products have been unable to meet the actual needs of users due to factors such as excessive volume or high power consumption. At present, more and more electronic products are oriented toward miniaturization and multi-function trends. Therefore, the requirements for the volume, installation method and function of the electronic components inside the product are becoming more and more stringent. [0003] The emergency power supply display screen can intuitively display data information such as mains voltage, emergency voltage, battery voltage and output current for observers, so that personnel can clearly understand the working conditions of the emergency power supply. If any...

Claims

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Application Information

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IPC IPC(8): G09G5/00
CPCG09G5/003
Inventor 李多山谷瑞
Owner CHONGQING SANSAN ELECTRIC APPLIANCE