Well, I don't know, although it has NICE in the name, it is as much NICE as possible in terms of design, at first sight I see three problems. 1) The main switch is at the back. 2) It has no option to turn off the output 3) This is the biggest problem which could also cause the destruction of the connected circuit - large capacity at the output - (just see how slowly the voltage drops when reducing the setting) this tells us that the design of filtering and regulation is not good. This will also probably make it impossible to set small currents in CC mode as someone asked here. Nice day 🙂 Tom
mine is having same trouble you are at 10:06..I short like it says to and the numbers go all over and go to zero, if I try to connect the leads it goes to zero, if I try shorting how you did, it goes to zero, I can't actually set amps to anything specific the way it is. I don't know if it's meant to be this way or what..
To set CC, set the volts to some small amount (around 1 or 2 volts), short the outputs, then adjust the current to the max you want, then unshift the leads. This works on the three Nice-Power supplies I have, as well as my old Leader LPS-152 linear supply. Also, make sure your leads are not damaged (sounds obvious but it can happen.) If it's still not working, attach a load to the supply, and try adjusting the current. If you cannot, then the supply may be bad.
@@GaryLaRocco ok..I can set higher amp amounts but it won't let me set anything below around 0.300 amps, I'd like to set a 0.005 limit for something, guess I can't do with with these.
Hi, I need some advice. I just bought a Power Supply Kococater SPPS-S605: 60V - 5Am, pretty similar to the on the video. Firstable I am not an engineer but I am trying to emule a device with this PS. I want to use from 1 to 50V and from 1 to 35mA. I tried and set up to 20V and 5mA, but when it was used, the display showed: V:4.8 (it was moving but just reached 5V, and the Amper value did not move, it stayed on 5mA, this is the value I wanted). Here comes my question: What should I do and order to get this measurements: from 1 to 50V and from 1 to 35mA (I need to hold the voltage without changing the miliampers). Thanks.
There are a number of Chinese power supplies that all look the same, and probably all perform about the same. I also have a 30V 10A version of this, and It's fine for my purposes. I also have two linear supplies, so I'm pretty well covered. :)
Most lab power supplies have relays which switch on at a certain voltage point. I'm not sure why lab power supplies use relays to turn on certain circuits in power supplies when reaching a certain voltage point. Do you know what circuits in the power supply the relays are turning on?
This is to save the power dissipation in the pass/regulation elements. It is switching transformer taps. Having a 50Vdc supply and asking it for a regulated 1 Volt means 49 Vdc needs to be dropped at the asked for current in the pass elements this generates heat QUICK. When asking the supply for 1Vdc and using the 5Vdc winding on the transformer only 4Vdc needs to be dropped in the pass/regulation elements. This leads to a cooler running and more efficient power supply.
If girls can wear pants and men's shoes, I don't see a single reason why a guy can't have painted nails, is it written somewhere that it's forbidden 😁 Nice day 🙂 Tom
it seems if you short your leads you would blow the power supply..why the hell would someone build something like that. what a weird way of setting your voltage. manufactures design GOOF...lmao
You short the leads to set the constant current. My Leader LPS-152 works the same way: set the voltage low (a volt or two), short the leads (briefly) and set the current you want.
nice review...im ordering a white one.....120v. thanks for the review.
Well, I don't know, although it has NICE in the name, it is as much NICE as possible in terms of design, at first sight I see three problems.
1) The main switch is at the back.
2) It has no option to turn off the output
3) This is the biggest problem which could also cause the destruction of the connected circuit - large capacity at the output - (just see how slowly the voltage drops when reducing the setting) this tells us that the design of filtering and regulation is not good. This will also probably make it impossible to set small currents in CC mode as someone asked here.
Nice day 🙂 Tom
mine is having same trouble you are at 10:06..I short like it says to and the numbers go all over and go to zero, if I try to connect the leads it goes to zero, if I try shorting how you did, it goes to zero, I can't actually set amps to anything specific the way it is. I don't know if it's meant to be this way or what..
To set CC, set the volts to some small amount (around 1 or 2 volts), short the outputs, then adjust the current to the max you want, then unshift the leads. This works on the three Nice-Power supplies I have, as well as my old Leader LPS-152 linear supply. Also, make sure your leads are not damaged (sounds obvious but it can happen.) If it's still not working, attach a load to the supply, and try adjusting the current. If you cannot, then the supply may be bad.
@@GaryLaRocco ok..I can set higher amp amounts but it won't let me set anything below around 0.300 amps, I'd like to set a 0.005 limit for something, guess I can't do with with these.
@@Limousine08 These budget supplies won't regulate that low. You are better off with a higher precision linear supply for low voltage / current.
Hi, I need some advice. I just bought a Power Supply Kococater SPPS-S605: 60V - 5Am, pretty similar to the on the video. Firstable I am not an engineer but I am trying to emule a device with this PS. I want to use from 1 to 50V and from 1 to 35mA. I tried and set up to 20V and 5mA, but when it was used, the display showed: V:4.8 (it was moving but just reached 5V, and the Amper value did not move, it stayed on 5mA, this is the value I wanted). Here comes my question: What should I do and order to get this measurements: from 1 to 50V and from 1 to 35mA (I need to hold the voltage without changing the miliampers). Thanks.
While you can set an upper voltage and current limit, both can not be held constant as the load changes.
@@GaryLaRocco Thank you.
I have one but it’s a different brand, nearly same exact design and it’s 31v 5a
There are a number of Chinese power supplies that all look the same, and probably all perform about the same. I also have a 30V 10A version of this, and It's fine for my purposes. I also have two linear supplies, so I'm pretty well covered. :)
Most lab power supplies have relays which switch on at a certain voltage point. I'm not sure why lab power supplies use relays to turn on certain circuits in power supplies when reaching a certain voltage point. Do you know what circuits in the power supply the relays are turning on?
This is to save the power dissipation in the pass/regulation elements. It is switching transformer taps. Having a 50Vdc supply and asking it for a regulated 1 Volt means 49 Vdc needs to be dropped at the asked for current in the pass elements this generates heat QUICK. When asking the supply for 1Vdc and using the 5Vdc winding on the transformer only 4Vdc needs to be dropped in the pass/regulation elements. This leads to a cooler running and more efficient power supply.
3:43 nice
kind of weird with a guy narrating and a girls hands
The universe is a weird and wonderful place.
If girls can wear pants and men's shoes, I don't see a single reason why a guy can't have painted nails, is it written somewhere that it's forbidden 😁
Nice day 🙂 Tom
I'm getting a lot of noise on the dc output of mine, what gives.... I made a video.
it seems if you short your leads you would blow the power supply..why the hell would someone build something like that. what a weird way of setting your voltage. manufactures design GOOF...lmao
You short the leads to set the constant current. My Leader LPS-152 works the same way: set the voltage low (a volt or two), short the leads (briefly) and set the current you want.
I had test that if short the leads, it have no any harm to the power supply.
@jameszhangnice-power860 Do you mean that the source has short circuit protection?
Impossible for me to take you seriously.
Too bad, so sad...