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(1) One of the shortcomings of the relay is that the action is too slow. From the point of view of modern control high speed (generally only time is 0.1~0.5ms), the gap is obvious, that is, the heart needs to accelerate the improvement of this performance in the future.
If a triode is connected in parallel on the contact, the contact closing speed will be greatly improved. Similarly, when a triode is connected in series with the contact, the speed at which the contact breaks will also increase.
(2) The so-called "surge" problem occurs when an overvoltage occurs when the relay coil is disconnected. To prevent this, the line shown in Figure 70 is often used. There are three points: (a) is a diode connected in parallel with the coil, (b) is an RC circuit in parallel between the contacts to remove the spark (c) is to use the triode output to drive the relay.
The examples shown above all use semiconductors to solve the shortcomings of relays. It also shows the relationship between the two.
Finally, the relay and electronic component devices are described. Some specifications that must be followed when designing a printed circuit board.
Founded in 2005, Dongguan Yinyin Hardware Products Co., Ltd. specializes in: silver contacts, electrical contacts, double composite silver nails, riveted silver contacts, soldered silver contacts, various precision stampings, conductive copper posts, contacts Screws, electrical screws, DC, AC pins, copper sleeves, such as hollow needles, semi-hollow needles, four guides, rivets, silver dots, binding posts, AV copper sleeves, 3F07 copper sleeves, 3F05 copper sleeves, 215 copper sleeves Etc., and the production of various silver, copper, iron, aluminum, non-show steel and other heterosexual products, electricity, mobile phone 13728192869, Mr. Chen
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