Author Topic: Run a Rigol off a 12v DC power supply?  (Read 1508 times)

0 Members and 1 Guest are viewing this topic.

Offline ball

  • Newbie
  • Posts: 2
  • Country: us
Run a Rigol off a 12v DC power supply?
« on: July 03, 2016, 06:16:58 PM »
Hi. I'm usually on the road and was wondering if anyone ran their Rigol off a DC power supply, presumably via a DC-DC converter. I haven't purchased one yet due to this issue and as a result have been considering one of those portable or USB-based samplers (yeah, I know, boo hiss, but they don't require AC!)

Inverters, especially pure sine wave, are inefficient and expensive.

Thanks
 

Offline cs.dk

  • Supporter
  • ****
  • Posts: 495
  • Country: dk
 

Offline ball

  • Newbie
  • Posts: 2
  • Country: us
Re: Run a Rigol off a 12v DC power supply?
« Reply #2 on: July 03, 2016, 06:41:54 PM »
Maybe an Owon SDS would be easier to hack
 

Offline NiHaoMike

  • Super Contributor
  • ***
  • Posts: 3409
  • Country: us
  • "Don't turn it on - Take it apart!"
    • Facebook Page
Re: Run a Rigol off a 12v DC power supply?
« Reply #3 on: July 04, 2016, 01:30:06 AM »
I modified my Instek 1062A to run on a 3s8p pack made from old laptop batteries. It takes quite a few DC/DC converters to get all the voltages needed. There's a lot of empty room in the case so it wasn't very difficult to fit everything in.
Cryptocurrency has taught me to love math and at the same time be baffled by it.
 

Offline Circlotron

  • Frequent Contributor
  • **
  • Posts: 932
  • Country: au
Re: Run a Rigol off a 12v DC power supply?
« Reply #4 on: July 04, 2016, 10:04:32 AM »
I have run my DS2072 of a 12v-240vac 50Hz inverter that gives a rectangular output voltage, then fed it into a bridge rectifier before it reaches the scope. The bridge was so the inverter doesn't see the X caps across the mains inside the scope PSU. So it is effectively running on 340vdc. Does generate a certain amount of nose but I was using it in a high noise environment anyway - probing the electrics of an old bus while we were driving down the road.

The point being the scope runs fine on straight 340vdc or whatever corresponds to peak AC voltage in your country.
« Last Edit: July 04, 2016, 10:06:57 AM by Circlotron »
 

Offline saturation

  • Super Contributor
  • ***
  • Posts: 4766
  • Country: us
  • Doveryai, no proveryai
    • NIST
Re: Run a Rigol off a 12v DC power supply?
« Reply #5 on: July 08, 2016, 12:35:32 AM »
Just remember if you run a DSO meant for AC power off an isolated inverter or a battery pack that you are floating the DSO and all the issues that entail.
« Last Edit: July 09, 2016, 11:40:22 PM by saturation »
Best Wishes,

 Saturation
 

Offline SteveyG

  • Supporter
  • ****
  • Posts: 539
  • Country: gb
Re: Run a Rigol off a 12v DC power supply?
« Reply #6 on: July 08, 2016, 11:20:53 PM »
Of course line triggering no longer works...


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf