Top 3 awesome circuit | Same circuit just change 1 component

 Top 3 awesome circuit | Same circuit just change 1 component

Imagine that you have an AC lamp or a DC motor and you want it to turn on and off automatically, not by pushing a button or something like that. In this case, what switch should you use to get the best results? You have many choices, triacs, transistors, relays and some other stuff. Which one is best for your load? Switches are integral members of any circuit or any electronic product, because of that it is critical to know about them and select them with scrupulosity. In a very basic classification, switches fall into two main categories, mechanical and electrical switches. The main topic in this video is about electrical switches but in the beginning we will take a brief look at mechanicals. Mechanical switches are physical switches, which must be activated physically, by moving, pressing, releasing, or touching and so on. For example, DIP switches, slide switches, push buttons, tactile switches, toggle switches, rocker switches, limit switches, joysticks, etc. On the other side there is electrical switches, which do not require any physical contact in order to control a circuit and they are activated by electrical signals and they let us automate processes, because they do not require a human operator to start or stop things and processes . there is 3 main factors to choose a switch type for a load; current type, speed and signal type; Also there are other factors like weight or price and so on which is not as important as our main factors. You must consider these 3 parameters in order to select the proper switch type: Parameter Number 1: Current type your load works with, (I mean AC or DC; for example this fan works with AC and this motor works with DC) Parameter Number 2 : How fast you are going to switch (if you intend to just turn a light bulb ON and OFF then you do not need much fast switch, but maybe you have to dim a light bulb by switching the bulb ON and OFF very fast, in this case you need a fast switch) And Parameter Number 3: importance of signal details (sometimes you are going to switch signals like sound or video, in this case you have to choose a switch to keep signal shape and details) Now that we considered 3 main factors, it is time to select a proper switch. Let’s take a brief look at those electrical switches. First Switch Type: TRIAC Triacs are AC switches and they are very fast, silent and they can switch on or off many times or almost unlimited. There are many details about triacs and how to select proper part number of them (like package type, power dissipation, maximum current, and whatever) but those details are not related to the subject of this video. Next week I will release a specific video about triacs to cover many details about them. I will cover the best way to connect a triac to a microcontroller, how to select the best part number from numerous options for a particular load, precautions and so on. Second Switch Type: TRANSISTOR Transistors are DC switches and they are very fast, silent and they can switch on or off many times or almost unlimited. Also transistors have many parameters (like collector-emitter voltage, maximum collector current, HFE, whatever) and they are available in numerous packages and types out on the market and it is very important to select the best part number for a particular load. I will cover detail about transistors in one of my next videos. Third Switch Type: RELAY Last switch that I will talk about is relay. Relays can switch either AC or DC and even media signals like Sound or video but they are very slow because they include a mechanical contact (they can switch ON or OFF utmost 10 times per second) and have limited times to switch on or off. They will lose their quality after a certain number of toggles. Relays make sounds and in the same condition they are more expensive than triacs or transistors. You must think about how awful relays are by what I said; slow, noisy, expensive, and limited times of switching. I think there is a confusing question. What makes relays valuable? With those disadvantages, why relays do not disappear from designs? In addition to the ability of relays to switch either AC or DC currents, there is at least two other factors to make relays valuable. First one is isolation and second one is keeping signal details. I will explain these items in next videos. To summarize the content, I have to say if your load works with AC, you can use either relay or triac but best choice is to use triac and if your load works with DC, you can switch it using either relay or transistor but it is better to use a transistor and if your circuit needs to isolate control section with load and power sections or you have to keep signal details, like sound or video or something like that, you have to use relays.

 Top 3 awesome circuit | Same circuit just change 1 component

Imagine that you have an AC lamp or a DC motor and you want it to turn on and off automatically, not by pushing a button or something like that. In this case, what switch should you use to get the best results? You have many choices, triacs, transistors, relays and some other stuff. Which one is best for your load? Switches are integral members of any circuit or any electronic product, because of that it is critical to know about them and select them with scrupulosity. In a very basic classification, switches fall into two main categories, mechanical and electrical switches. The main topic in this video is about electrical switches but in the beginning we will take a brief look at mechanicals. Mechanical switches are physical switches, which must be activated physically, by moving, pressing, releasing, or touching and so on. For example, DIP switches, slide switches, push buttons, tactile switches, toggle switches, rocker switches, limit switches, joysticks, etc. On the other side there is electrical switches, which do not require any physical contact in order to control a circuit and they are activated by electrical signals and they let us automate processes, because they do not require a human operator to start or stop things and processes . there is 3 main factors to choose a switch type for a load; current type, speed and signal type; Also there are other factors like weight or price and so on which is not as important as our main factors. You must consider these 3 parameters in order to select the proper switch type: Parameter Number 1: Current type your load works with, (I mean AC or DC; for example this fan works with AC and this motor works with DC) Parameter Number 2 : How fast you are going to switch (if you intend to just turn a light bulb ON and OFF then you do not need much fast switch, but maybe you have to dim a light bulb by switching the bulb ON and OFF very fast, in this case you need a fast switch) And Parameter Number 3: importance of signal details (sometimes you are going to switch signals like sound or video, in this case you have to choose a switch to keep signal shape and details) Now that we considered 3 main factors, it is time to select a proper switch. Let’s take a brief look at those electrical switches. First Switch Type: TRIAC Triacs are AC switches and they are very fast, silent and they can switch on or off many times or almost unlimited. There are many details about triacs and how to select proper part number of them (like package type, power dissipation, maximum current, and whatever) but those details are not related to the subject of this video. Next week I will release a specific video about triacs to cover many details about them. I will cover the best way to connect a triac to a microcontroller, how to select the best part number from numerous options for a particular load, precautions and so on. Second Switch Type: TRANSISTOR Transistors are DC switches and they are very fast, silent and they can switch on or off many times or almost unlimited. Also transistors have many parameters (like collector-emitter voltage, maximum collector current, HFE, whatever) and they are available in numerous packages and types out on the market and it is very important to select the best part number for a particular load. I will cover detail about transistors in one of my next videos. Third Switch Type: RELAY Last switch that I will talk about is relay. Relays can switch either AC or DC and even media signals like Sound or video but they are very slow because they include a mechanical contact (they can switch ON or OFF utmost 10 times per second) and have limited times to switch on or off. They will lose their quality after a certain number of toggles. Relays make sounds and in the same condition they are more expensive than triacs or transistors. You must think about how awful relays are by what I said; slow, noisy, expensive, and limited times of switching. I think there is a confusing question. What makes relays valuable? With those disadvantages, why relays do not disappear from designs? In addition to the ability of relays to switch either AC or DC currents, there is at least two other factors to make relays valuable. First one is isolation and second one is keeping signal details. I will explain these items in next videos. To summarize the content, I have to say if your load works with AC, you can use either relay or triac but best choice is to use triac and if your load works with DC, you can switch it using either relay or transistor but it is better to use a transistor and if your circuit needs to isolate control section with load and power sections or you have to keep signal details, like sound or video or something like that, you have to use relays.