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What is electronic watch_How electronic watch work

Time:2019-02-28 Views:201
The quartz oscillator, the vibration capacitor, the trimmer capacitor and the vibration terminal circuit in the integrated circuit form the vibration part of the electronic watch, generating a vibration frequency of 3278 times per second, and sending the frequency to the frequency dividing circuit, which is divided by 216 times. The pulse signal once per second completes the work of the watch.

Basic working principle

The quartz oscillator, the vibration capacitor, the trimmer capacitor and the vibration terminal circuit in the integrated circuit form the vibration part of the electronic watch. The vibration frequency of 3278 times per second occurs, and the frequency is sent to the frequency dividing circuit, which is divided by 216 times. The pulse signal once per second completes the work of the watch. The fundamental working principle of quartz oscillator, vibration capacitor, trimmer capacitor and the vibration terminal circuit in the integrated circuit constitutes the vibration part of the electronic watch. The vibration frequency is 3278 times per second, and the frequency is sent to the frequency dividing circuit, which is divided into 216 times. The frequency becomes a pulse signal once per second, which completes the work of the watch. Then send the second counter, that is, input 60 pulse signals, and an output signal is generated, and the output pulse 锺 is once every minute. The second counter outputs a pulse signal to the minute counter every minute, and its own second pulse signal flashes a second number on the flasher. The minutes, hours, and days counters work the same as the seconds counter. The decoding circuit changes the content of each counter to 7k digital code to push the 7-flash liquid crystal flashing board or the light-exciting tube. The decoded signal, lack of current, and a voltage of 1.5 volts is also lacking to drive the liquid crystal to flash.

Fundamental structure

Digital electronic watches mainly use two kinds of flashing equipment: LED (Light Emitting Diode) and LCD (Liuid Cry.stal Display). The LCD electronic watch uses a GaAs/p LED as a flasher. This type of flasher consumes a lot of power, and the appearance is not continuous, but when you need to look at it, you can see the flashing number by pressing the button. LCD electronic watches use nematic liquid crystal flash as a flasher. This flasher consumes very little power (less than 1 microamperes) and can flash continuously. Therefore, in the electronic watch market, the status of LCD digital watches is becoming more and more important. The fundamental components of LCD electronic watches are: CMOS integrated circuits, LCD screens, printed circuit boards, quartz crystal vibrators, capacitors, trimmer capacitors, light diffusers, miniature bulbs, conductive rubber connectors, batteries, and more. Digital quartz watch integrated circuit should pay attention to the problem, the digital quartz watch integrated full name is complementary metal carbon monoxide-semiconductor integrated circuit (Complementary Metal Oxide Semiconductor) abbreviated to CMOS. It controls all the functions of the spreadsheet. The area of the integrated circuit chip is about 10 square millimeters, and it is spot-welded with gold wire or aluminum wire and connected to the lead of the circuit board board with black sealant protection. This type of integrated circuit is characterized by high integration, that is, a small area of silicon can accommodate several transistors, and the consumption of electrodes is low. According to the record of the semiconductor‘s past quality, under reasonable use, the chance of damage to the integrated circuit is small and the life expectancy should be very long. Most of the electronic form ICs that are seen today are damaged due to damage to the outside world (water vapor, static electricity, etc.) during use.

Common quality problems of integrated circuits

1. Quartz table static electricity, high voltage power supply damage, in the dry climate, the high voltage static electricity on the human body is the most damaged quartz watch integrated circuit. The precautionary approach is that all parts, workbench and human body should be grounded, and the soldering iron used for welding should be grounded.
2, watch water gas short circuit, because the integrated circuit is low power consumption equipment, the most likely to cause water and gas short circuit, resulting in the quartz watch circuit overload and short circuit.
Dongguan Watch Jewelry Co., Ltd. has been committed to the design, research and development, production and sales of electronic watches. The electronic watches produced are popular in Europe, America, Japan and South Korea, and become the quality supplier of many international brands in China.
We hope to continue to design more fashionable, improve the quality of our electronic watches, and provide them to a wide range of consumers, so that everyone can find an electronic watch that suits their style.

If you have some good comments on our electronic watch products, please contact us! ! !
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