EEVblog Electronics Community Forum

Electronics => Projects, Designs, and Technical Stuff => Topic started by: sixtimesseven on July 20, 2019, 09:08:43 pm

Title: RTB 2004 Battery Mod
Post by: sixtimesseven on July 20, 2019, 09:08:43 pm
I was wondering if there is a project / mod adding a battery to the RTB 2004 oscilloscope?

There is a lot of space in there and it would be very usefull to me. It would be pretty straight forward to do since the 2004 is supplied with a single 12V rail from the ACDC module... Perfect for a 3-cell Lipo replacement I think.

However, why reinvent the wheel...
Title: Re: RTB 2004 Battery Mod
Post by: InductorbackEMF on July 20, 2019, 10:03:10 pm
Hi,I was thinking the same thing for the RTM3004 same single 12v rail.
May be worth testing the power draw to get a feel of how long it would run with some Lipo cells.

If you do go ahead please say so!

Alex.
Title: Re: RTB 2004 Battery Mod
Post by: NiHaoMike on July 21, 2019, 03:22:09 am
If it does require just 12V, a 3S pack with a BMS will indeed work nicely. Certainly easier than on other scopes such as my GDS-1062A that need several DC/DC converters.

Someone modded a Rigol to run on batteries.
https://www.eevblog.com/forum/chat/()-rigol-ds1052ed-power-supply-dc-voltage-add-battery-pack/ (https://www.eevblog.com/forum/chat/()-rigol-ds1052ed-power-supply-dc-voltage-add-battery-pack/)
Title: Re: RTB 2004 Battery Mod
Post by: sixtimesseven on July 22, 2019, 08:25:07 pm
Hi,I was thinking the same thing for the RTM3004 same single 12v rail.
May be worth testing the power draw to get a feel of how long it would run with some Lipo cells.

I measured the current drawn after boot up to be 3 A idle and 3.4 with all four channels enabled. Voltage is pretty spot on 12V. I measured 11.97V with my DM3068 meter.

Quote
If it does require just 12V, a 3S pack with a BMS will indeed work nicely. Certainly easier than on other scopes such as my GDS-1062A that need several DC/DC converters.

Indeed, just a single 12V rail. Nicly broken out from the shield and with a 4-Pin Molex which looks like a smaller version of the 4-pin ATX connector. Probably this one: https://www.molex.com/molex/products/datasheet.jsp?part=active/1053081204_CRIMP_HOUSINGS.xml (https://www.molex.com/molex/products/datasheet.jsp?part=active/1053081204_CRIMP_HOUSINGS.xml).

Thanks Rohde Schwarz  :-+

Edit: Just found the power supply:
https://www.digikey.ch/product-detail/en/xp-power/ECS65US12/1470-1296-ND/4487677 (https://www.digikey.ch/product-detail/en/xp-power/ECS65US12/1470-1296-ND/4487677)

Credit to Mike! https://www.youtube.com/watch?v=mcgJSKxj0i0 (https://www.youtube.com/watch?v=mcgJSKxj0i0)

Title: Re: RTB 2004 Battery Mod
Post by: coromonadalix on July 22, 2019, 10:30:09 pm
Tons of emptyness to play with ??
Title: Re: RTB 2004 Battery Mod
Post by: sixtimesseven on July 23, 2019, 09:34:33 am
Quote
Tons of emptyness to play with ??

Would be plenty for my 4s 8000mA RC battery I have laying arount. To bad it is not 3s.