Photos - Manson DPD-3030 Triple Output Power Supply - Page 1
Forum section: electronics / general

author: Shock
author_rank: Super Contributor
timestamp: November 26, 2012, 03:37:05 pm
content: Manson DPD-3030 Triple Output, Dual Tracking DC Regulated Linear Power SupplySPECSInput Voltage:Supports 110VAC up to 240VAC 50/60Hz and everything in-between)Outputs:Master/Slave: 0-30VDC 3A (per supply)Series: 0-60VDC 3AParallel: 0-30VDC 6AAux: 1.5-6VDC 5AThe Small stuff:Ripple noise (less than) 1mVLoad Current regulation 0.2% + 3mALine Current regulation 0.2% + 3mARipple Current (less than) 3mA R.M.S.Recovery Time less than 100 micro secondProtection:OverloadOver TemperatureShort CurrentReverse PolarityInput Socket with 8A FuseWeight:12Kgs (harder to steal)ManualBrochureObservations:Made in China (Manson is a Hong Kong outfit from their website).Feels like wire-wound nylon potentiometers the accuracy is there somewhere (see last photo) but perhaps these could benefit from an upgrade to multi turn pots.Constant current mode can be set by shorting the output and would benefit from switch upgrade to make it more user friendly.Is a very solid frame could not see any contortion while I was spinning it about on its corners with the cover off.10 small + 6 large handle machine screws to get the cover off alone.Has industrial strength retractable locking handles to allow moving the supply or perhaps adding some in rack protection.Its heavy enough that you don't want to be lifting it for extended periods.Cooled by a ducted heatsink from inside its low dBs in operation as well.Large chunk of iron inside and overall appears well constructed. Glad I didn't have to build it.Powers your projects - bonus

author: AlphZeta
author_rank: Regular Contributor
timestamp: November 26, 2012, 04:55:57 pm
content: I think I spotted an NE555 in the second but last pictures for the internals... Hmm not sure what that is used for in this power supply...

author: c4757p
author_rank: Super Contributor
timestamp: November 26, 2012, 07:58:59 pm
content: Since it's on the relay board, perhaps it's a monostable for delaying the relay switches. Maybe one has to be switched after the other, or they don't want the relays switching too fast, or something like that.

author: saturation
author_rank: Super Contributor
timestamp: November 26, 2012, 08:34:43 pm
content: Nice. It looks very well made and doesn't have the typical China glue and haphazard parts alignment.http://www.manson.com.hk/en/index.phpSeems like they are an established HK company before the PRC take over, so their quality and design ethic is far above the Yihuas and Attens we see. Even better than Mastech.

author: Shock
author_rank: Super Contributor
timestamp: November 27, 2012, 03:14:59 am
content: Quote from: c4757p on November 26, 2012, 07:58:59 pmYeah I think your correct as there is an apparent tactile delay when you dial up the voltage quickly as the relays click in.There was a 60VDC (120VDC in series) one of these that went on eBay for $115.Manson is under the hood of many brands e.g. Exetech, B&K Precision, Rapid, Maplin, RS, Jaycar.Design if this model is at least 10 years old now. Not sure what its based on.Knobs make it look a little cheaper than it is on the insideDave did a review of an OEM Jaycar/Manson in #272

author: mdronic
author_rank: Contributor
timestamp: April 29, 2015, 01:38:06 pm
content: Read your post with interest as have been saving up to buy a psu so that I can start doing some playing. Have been trying to decide which one. I don't have the skills or knowledge to buy one 2nd hand as everyone seems to suggest and fix. I was looking at the manson dpd3030 as one option. However cant seem to find any real reviews. Can you (or anyone) tell me if you are happy with your purchase and would recommend. Are there any things you don't like or like now that you have had it for a while. Is it still working well or problems. Given a second chance would you buy again. If not this psu what other with similar specks. Or should I keep saving and get a programmable psu. I don't have any yet just starting to set up my bench. Thanks in advance.

author: Shock
author_rank: Super Contributor
timestamp: May 01, 2015, 05:16:22 am
content: Quote from: mdronic on April 29, 2015, 01:38:06 pmI got mine cheap with only some dust and a few hours use on it, it was a great buy. New they are quite expensive. I would not recommend it just because it's very analog in operation and an old design. It's not mainstream so you are on your own if you have to repair it. I understand most of the circuit however.It's large and heavy, not programmable or interfacable in any way. It has constant voltage and constant current which is great but the would be better if you could set the voltage and current on the fly rather than dialing it up manually. It also has no output switch so is always on unless you short it to go to constant current mode. It would also be nice if it had more displays so you could see the actual current and the constant current setting.It has overload, over temperature, short, reverse polarity and good fuse protection internally.Despite it's lack of features it's still a beast, works fine (similar to my other analog 0-30 2A PSU) and I also have an unregulated 0-30V power supply and two fixed voltage bench supplies as well.