EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: JtroTechAB on January 28, 2019, 01:31:32 pm
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Looking for DC Regulated power supply
Specs: Single channel, Dual channel & Multi channel
30V, 32V, 35V
2A, 3A, 5A
any combination of these voltage & current ratings.
Kindly suggest the most leading & trusted selling power supply.
max. budget: 100USD to 150USD
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https://www.meanwell.com/ (https://www.meanwell.com/) or any one,digitkey or arrow.com sells
it'll cost around 6000rs for 3 supplies
but you're in India....get a custom transformer wound up for yourself...give the guys at 'erd' a call
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Any OEM , any chinese economical models?
should have CC & CV
should display current and voltage simultaneously in 3 digits atleast.
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Dont want to be rude, but writing china for cheap psu's, you will get cheap psu's "smps based", there some Dave jones teardown videos and other members too, they are not impressive to say the least.
Examples:
https://www.ebay.com/itm/MCH-K305D-30V-5A-Variable-SMPS-Mini-Single-Channel-Switching-DC-Power-Supply/251692753547?hash=item3a9a0ea28b:g:CxQAAOSwy4hUTQjl:rk:1:pf:0 (https://www.ebay.com/itm/MCH-K305D-30V-5A-Variable-SMPS-Mini-Single-Channel-Switching-DC-Power-Supply/251692753547?hash=item3a9a0ea28b:g:CxQAAOSwy4hUTQjl:rk:1:pf:0)
https://www.ebay.com/itm/Adjustable-Variable-DC-Power-Supply-Digital-Precision-Lab-Grade-With-Cable/123183551435?epid=13019934550&hash=item1cae4fd3cb:g:80kAAOSw7UJbHkdE:rk:24:pf:0 (https://www.ebay.com/itm/Adjustable-Variable-DC-Power-Supply-Digital-Precision-Lab-Grade-With-Cable/123183551435?epid=13019934550&hash=item1cae4fd3cb:g:80kAAOSw7UJbHkdE:rk:24:pf:0)
https://www.ebay.com/itm/Mini-Adjustable-Switch-DC-Power-Supply-GPS305D-Output-0-30V-0-5A-AC110V-220V/273635986095?hash=item3fb5f9caaf:m:mxzTXqZV4LoAIM8MstmSMsA:rk:25:pf:0 (https://www.ebay.com/itm/Mini-Adjustable-Switch-DC-Power-Supply-GPS305D-Output-0-30V-0-5A-AC110V-220V/273635986095?hash=item3fb5f9caaf:m:mxzTXqZV4LoAIM8MstmSMsA:rk:25:pf:0)
https://www.ebay.com/itm/Wanptek-KPS305D-0-30V-0-5A-Adjustable-Digital-Switching-DC-Power-Supply-110-220V/132295902017?hash=item1ecd734341:m:mozSzt27h_DqKpviFbimFgw:rk:26:pf:0 (https://www.ebay.com/itm/Wanptek-KPS305D-0-30V-0-5A-Adjustable-Digital-Switching-DC-Power-Supply-110-220V/132295902017?hash=item1ecd734341:m:mozSzt27h_DqKpviFbimFgw:rk:26:pf:0)
The "thrusting brands" will cost you more than 100-150$ usd
-
Dont want to be rude, but writing china for cheap psu's, you will get cheap psu's "smps based", there some Dave jones teardown videos and other members too, they are not impressive to say the least.
Examples:
https://www.ebay.com/itm/MCH-K305D-30V-5A-Variable-SMPS-Mini-Single-Channel-Switching-DC-Power-Supply/251692753547?hash=item3a9a0ea28b:g:CxQAAOSwy4hUTQjl:rk:1:pf:0 (https://www.ebay.com/itm/MCH-K305D-30V-5A-Variable-SMPS-Mini-Single-Channel-Switching-DC-Power-Supply/251692753547?hash=item3a9a0ea28b:g:CxQAAOSwy4hUTQjl:rk:1:pf:0)
https://www.ebay.com/itm/Adjustable-Variable-DC-Power-Supply-Digital-Precision-Lab-Grade-With-Cable/123183551435?epid=13019934550&hash=item1cae4fd3cb:g:80kAAOSw7UJbHkdE:rk:24:pf:0 (https://www.ebay.com/itm/Adjustable-Variable-DC-Power-Supply-Digital-Precision-Lab-Grade-With-Cable/123183551435?epid=13019934550&hash=item1cae4fd3cb:g:80kAAOSw7UJbHkdE:rk:24:pf:0)
https://www.ebay.com/itm/Mini-Adjustable-Switch-DC-Power-Supply-GPS305D-Output-0-30V-0-5A-AC110V-220V/273635986095?hash=item3fb5f9caaf:m:mxzTXqZV4LoAIM8MstmSMsA:rk:25:pf:0 (https://www.ebay.com/itm/Mini-Adjustable-Switch-DC-Power-Supply-GPS305D-Output-0-30V-0-5A-AC110V-220V/273635986095?hash=item3fb5f9caaf:m:mxzTXqZV4LoAIM8MstmSMsA:rk:25:pf:0)
https://www.ebay.com/itm/Wanptek-KPS305D-0-30V-0-5A-Adjustable-Digital-Switching-DC-Power-Supply-110-220V/132295902017?hash=item1ecd734341:m:mozSzt27h_DqKpviFbimFgw:rk:26:pf:0 (https://www.ebay.com/itm/Wanptek-KPS305D-0-30V-0-5A-Adjustable-Digital-Switching-DC-Power-Supply-110-220V/132295902017?hash=item1ecd734341:m:mozSzt27h_DqKpviFbimFgw:rk:26:pf:0)
The "thrusting brands" will cost you more than 100-150$ usd
Dont want to be rude, but writing china for cheap psu's, you will get cheap psu's "smps based", there some Dave jones teardown videos and other members too, they are not impressive to say the least.
Examples:
https://www.ebay.com/itm/MCH-K305D-30V-5A-Variable-SMPS-Mini-Single-Channel-Switching-DC-Power-Supply/251692753547?hash=item3a9a0ea28b:g:CxQAAOSwy4hUTQjl:rk:1:pf:0 (https://www.ebay.com/itm/MCH-K305D-30V-5A-Variable-SMPS-Mini-Single-Channel-Switching-DC-Power-Supply/251692753547?hash=item3a9a0ea28b:g:CxQAAOSwy4hUTQjl:rk:1:pf:0)
https://www.ebay.com/itm/Adjustable-Variable-DC-Power-Supply-Digital-Precision-Lab-Grade-With-Cable/123183551435?epid=13019934550&hash=item1cae4fd3cb:g:80kAAOSw7UJbHkdE:rk:24:pf:0 (https://www.ebay.com/itm/Adjustable-Variable-DC-Power-Supply-Digital-Precision-Lab-Grade-With-Cable/123183551435?epid=13019934550&hash=item1cae4fd3cb:g:80kAAOSw7UJbHkdE:rk:24:pf:0)
https://www.ebay.com/itm/Mini-Adjustable-Switch-DC-Power-Supply-GPS305D-Output-0-30V-0-5A-AC110V-220V/273635986095?hash=item3fb5f9caaf:m:mxzTXqZV4LoAIM8MstmSMsA:rk:25:pf:0 (https://www.ebay.com/itm/Mini-Adjustable-Switch-DC-Power-Supply-GPS305D-Output-0-30V-0-5A-AC110V-220V/273635986095?hash=item3fb5f9caaf:m:mxzTXqZV4LoAIM8MstmSMsA:rk:25:pf:0)
https://www.ebay.com/itm/Wanptek-KPS305D-0-30V-0-5A-Adjustable-Digital-Switching-DC-Power-Supply-110-220V/132295902017?hash=item1ecd734341:m:mozSzt27h_DqKpviFbimFgw:rk:26:pf:0 (https://www.ebay.com/itm/Wanptek-KPS305D-0-30V-0-5A-Adjustable-Digital-Switching-DC-Power-Supply-110-220V/132295902017?hash=item1ecd734341:m:mozSzt27h_DqKpviFbimFgw:rk:26:pf:0)
The "thrusting brands" will cost you more than 100-150$ usd
I dont see any reviews about these models, in order to get sense of how much reliable they are.
Also, 10 to 20 USD here and there will also do.
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That's pretty far in the budget category for what's available here, so it's more like looking for features and hoping build/design quality is "good enough" than actually going for a trusted manufacturer. At least here, getting a manufacturer with some reputation for good quality products starts at 2-3x that price retail, and continues up sharply for the top brands.
Do you have the option of looking on the used market? Maybe you can find an old lower power HP supply or something and then get a higher current supply of some sort for your high power needs. Going to be tough to find two in that pricerange, but unless you're buying used with analog displays, it's near impossible to get 3 channels with two 35V 5A channels at anywhere close to that pricepoint... even then it could be tough. Reduce the current requirement and maybe the voltage slightly, should be easier. Looking around, stuff by BK Precision, Lambda, GW Instek, Extech, or HP seem to come up as triple supplies available used and any would be at least a reasonable brand (though the supply itself will probably be pretty old).
Reviews on the really cheap units can sometimes be found, but since there's no guaranteed the manufacturer won't change the hardware/firmware/specific parts used... they're only going to give you a general idea of what's going on.
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You want cheap, reliable and had been reviewed ... answer .. no, at least not easy to find one.
I guess you've exhausted the Google search already too, so your quest here, and also your other thread on seeking cheap, reliable and reputable DMM thread, I guess too, that it is going no where.