TTi - CPX400DP Power Supply - Page 1
Forum section: electronics / testgear

author: dr.diesel
author_rank: Super Contributor
timestamp: October 27, 2017, 03:09:18 pm
content: Not really a review or teardown, just wanted to peak inside before putting the unit to use.I needed a high current PS for battery charging, motor and robotics projects, nothing critical but wanted at min a mid-range device in terms of quality. Aside form the metal tapping cover screws the unit is well made, ELNA, Rubycon and KEMET (? Never heard of Kemet) caps, most other visible components are name brand.Variable speed fan, quite reasonable for the units power output level, will do some very basic performance verification eventually.Voltage reference = ADR03A, 2.5v 3ppm/C, ADC = ADS1241E.Few picts attached:

author: bd139
author_rank: Super Contributor
timestamp: October 27, 2017, 03:15:37 pm
content: Kemet are a very reputable manufacturer of capacitors who have been around forever. I refurbed an HP 6206B dated 1973 the other day and it had some Kemet capacitors in it, still functioning.TTi supplies are always pretty nice (well since about 1994 anyway). I've got three but I'm getting rid of them because they are so damn huge.

author: dr.diesel
author_rank: Super Contributor
timestamp: October 27, 2017, 03:23:15 pm
content: Quote from: bd139 on October 27, 2017, 03:15:37 pmLearn something new everyday, you'd think after 30 some years I recognize them.

author: bd139
author_rank: Super Contributor
timestamp: October 27, 2017, 03:33:25 pm
content: It happens regularly for me - don't sweat it

author: dr.diesel
author_rank: Super Contributor
timestamp: October 27, 2017, 03:38:32 pm
content: The unit also has a web interface, no virtual control but it does include a self hosted page with all control commands, error codes, IP setup, model info etc.

author: ovnr
author_rank: Frequent Contributor
timestamp: October 27, 2017, 03:54:22 pm
content: Doesn't look like the power supply side has seen many changes since the non-remote-control CPX400A predecessor (quick teardown).If you do work with motor controllers, I'd suggest getting some beefy MOVs and putting them on the output to protect it from regenerative braking. I blew mine up a little bit (as seen in the link above).

author: Ice-Tea
author_rank: Super Contributor
timestamp: October 27, 2017, 04:02:30 pm
content: Kemet is well known, even though more for ceramics than elco's I pressume.I have a Asrock MoBo where they brag to have ELNA for their audio caps, so I pressume that to be an OK brand, too.

author: dr.diesel
author_rank: Super Contributor
timestamp: October 27, 2017, 04:05:07 pm
content: That's an interesting failure, not sure how I missed your post, but thanks for the link/info.

author: rmacintosh
author_rank: Regular Contributor
timestamp: October 27, 2017, 04:30:38 pm
content: NIce unit. I have this power supply, well the Sorensen branded version XPS 60-20DP, on its way - should have it in a week or so.Quote from: ovnr on October 27, 2017, 03:54:22 pmI hope so, then that service manual you linked should prove handy for mine - to a degree.I currently have requests in with Sorensen and TTI for a service manual for the CPX400DP / XPS 60-20DP, hoping one of them comes through.