Some Circumstances of Light Touch Switch on Current
Release time：2019-03-27 Clicks： Click
Touch switch is a kind of electrical parts, there are many situations in the current, the specific situation we will give you a detailed introduction below.
Discuss in detail the problem of lightly touching switching current
In the control circuit of the current loop, the current amplifier usually chooses a larger gain. Its advantage is that a smaller resistance can be selected to obtain enough detection voltage, and the detection resistance has a smaller loss. High-voltage switch opening and closing speed, especially the number of pulses, can realize the measurement of the whole travel parameters of the movable contacts. At the same time, record the time value of each electric pulse, divide the displacement at the same time, and then the maximum speed and average speed of the movable contacts in the process of movement can be achieved.
The light touch switch has the advantages of small contact resistance charge, accurate operating force error, diversification of specifications and so on. It has been widely used in electronic equipment and white household appliances, such as: audio-visual products, digital products, remote control, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, banknote checker pen, laser pen keys and so on. Because the light touch switch is directly replaced by conductive rubber or pot switch hardware bullet, such as medical equipment, TV remote controller, etc. in environmental conditions (pressure less than 2 times elasticity/ambient temperature and humidity conditions and electrical performance), large equipment and high-load buttons.
The light touch switch is the speed of the moving contact before and after closing, which has a vital impact on the breaking performance of the switch. Therefore, the travel-time characteristic detection of high-voltage switch is an important content of high-voltage switch detection. Because the switching contact moves in a straight line, an attachment moving with the moving contact can be installed. When the moving contact is split and closed, the attachment moves in a straight line with the connecting rod. Through the photoelectric sensor, the continuously varying displacement can be transformed into a series of electric pulse signals. It is also the basis for calculating the opening and closing speed of high voltage switch.