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This is my very first attempt to create a circuit and i could use some help. This is the second time I post, I hope to get help this time. So what this circuit is supposed to do is have three outputs meant for tattoo machines, and allow for voltage monitoring. I also wanted to smoothen out the power being provided to the machines as well as protecting all the electronics from user error and short circuiting of any of the outputs. I also want it to be super safe for the user and client. I would like it if eventually i can get the entire thing medically certifiable because of the environment it will be most used in. But not necessary at the moment. I just want to make it work for now.
So, I pretty much just copied and pasted all of it so i must be off on stuff. Although i understand the function of most of it, i don't know the math or all the ICs and other components that are out there. So I'm sure there is simpler ways to go about what I'm trying to do. I also need to make it inexpensively and be able to install it in a relatively small housing. I think something around 1"x1"x3" would be ok, but not necessary either. And of coarse I'm going to have to end up making it myself so I can't make it to difficult on myself.
So here is the circuit. I made it on "EAGLE", and it didn't give me any errors but I haven't actually tested it or simulated it. Not exactly sure how to go about it. Sorry if the image isn't very good, i didn't see a better way of getting it to post on here.
Mods Note:
Adjust the colors made it more clear to see.
The original is here:
On the rj45 pins I'm going to have the output from the tattoo machine power supply for machines 1,2 and 3 on matching pins. Pin 4 will be for the cooling fans tachometer, pin 5 will be the output for the voltmeter, pin 6 will be 12v+ supply, pin 7 will be 5v+supply, and pin 8 is ground. The bottom segment is a bit unfinished but its going to be for a cooling fan control.
All the stuff on the ground side is my attempt to smoothen out all of the different circuits and voltages while the loads and supply voltages change. My reasoning behind that is, the loads will vary greatly because tattoo machines vary greatly. Some are brushless motors, some are electromagnetic induction coil, and have small and large versions of them. Then, during all this the motor or coil has varying amounts of resistance as well, due to skin coming in contact with needle driven by them, and I wanted to make sure that the voltage or amperage never changes for any of the components and especially the output. I want to make sure that the machines ran through this run smoother and better than they ever have.That's also my reasoning for the voltage controllers for the 12v+ and 5v+ that run the ICs and relay. That and because the actual power supply circuitry will be far away from this board. The voltage to the output will also change during operation, by the user. It can vary from 3v-20v and will need up to 1 amp. Although it will probably typically run at around 14v and about a half amp. I would just like to make sure that all my basses are covered.
The rest of the circuit is just my attempt to get the most accurate voltage reading to be displayed to the user without any possible back-feeding into any of the outputs that are off. I though a relay could secure that. And to run and control the relay I would have to use the power from the output channel so only that relay closes that circuit to the voltage display circuit that will be in a remote location. But, would diodes have been enough?
I think I might have gone a little overboard with it or just gone about it the wrong way. What do you guys think? I also don't want it to be an energy hog because it might be running on batteries in some applications. My last question is: will this circuit generate enough heat if ran at full capacity to merit a cooling fan?
So, I pretty much just copied and pasted all of it so i must be off on stuff. Although i understand the function of most of it, i don't know the math or all the ICs and other components that are out there. So I'm sure there is simpler ways to go about what I'm trying to do. I also need to make it inexpensively and be able to install it in a relatively small housing. I think something around 1"x1"x3" would be ok, but not necessary either. And of coarse I'm going to have to end up making it myself so I can't make it to difficult on myself.
So here is the circuit. I made it on "EAGLE", and it didn't give me any errors but I haven't actually tested it or simulated it. Not exactly sure how to go about it. Sorry if the image isn't very good, i didn't see a better way of getting it to post on here.
Mods Note:
Adjust the colors made it more clear to see.
The original is here:
On the rj45 pins I'm going to have the output from the tattoo machine power supply for machines 1,2 and 3 on matching pins. Pin 4 will be for the cooling fans tachometer, pin 5 will be the output for the voltmeter, pin 6 will be 12v+ supply, pin 7 will be 5v+supply, and pin 8 is ground. The bottom segment is a bit unfinished but its going to be for a cooling fan control.
All the stuff on the ground side is my attempt to smoothen out all of the different circuits and voltages while the loads and supply voltages change. My reasoning behind that is, the loads will vary greatly because tattoo machines vary greatly. Some are brushless motors, some are electromagnetic induction coil, and have small and large versions of them. Then, during all this the motor or coil has varying amounts of resistance as well, due to skin coming in contact with needle driven by them, and I wanted to make sure that the voltage or amperage never changes for any of the components and especially the output. I want to make sure that the machines ran through this run smoother and better than they ever have.That's also my reasoning for the voltage controllers for the 12v+ and 5v+ that run the ICs and relay. That and because the actual power supply circuitry will be far away from this board. The voltage to the output will also change during operation, by the user. It can vary from 3v-20v and will need up to 1 amp. Although it will probably typically run at around 14v and about a half amp. I would just like to make sure that all my basses are covered.
The rest of the circuit is just my attempt to get the most accurate voltage reading to be displayed to the user without any possible back-feeding into any of the outputs that are off. I though a relay could secure that. And to run and control the relay I would have to use the power from the output channel so only that relay closes that circuit to the voltage display circuit that will be in a remote location. But, would diodes have been enough?
I think I might have gone a little overboard with it or just gone about it the wrong way. What do you guys think? I also don't want it to be an energy hog because it might be running on batteries in some applications. My last question is: will this circuit generate enough heat if ran at full capacity to merit a cooling fan?
