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Posts Tagged ‘ESR meter’

DIY in circuit capacitor ESR meter

Friday, January 17th, 2014

Here's a DIY in circuit capacitor ESR meter build by Lawrence: This project was conceived as a way to enhance the collection of test equipment on my test bench. I buy a lot of older HP test gear off ebay as well as older radios. Most of this gear is...

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Tinkerer’s tricorder update

Friday, May 24th, 2013

Nickjohnson posted an update to his network analyzer we covered previously: More tweaks and improvements! I've moved to a dedicated LED dimming controller for the backlight instead of resistors, and made a few other layout tweaks. It's now out for fab. A friend put together some nice renders of the...

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Tinkerer’s tricorder

Wednesday, May 8th, 2013

Nickjohnson wrote previously about his Loki PSoC based development board.  Now he’s experimenting with the idea of building an ESR meter: I've been experimenting with different measurement options using the Loki as a test platform. I'm just about ready to start speccing out and designing a PCB soon, and I've...

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Posted in measurement, tools | 1 Comment »

ESR meter rebuilt

Monday, November 19th, 2012

MickM shares how he rebuilt his ESR meter: I just rebuilt my ESR meter. I found the schematic on the web, see ORIGINAL-schematic.png for author. This works well and is easy and almost free to build. It is analog (which I prefer), and uses a 50uA meter. Via the forum.

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Posted in DIY, how-to | 1 Comment »

ATMega88 based LCFesR meter

Thursday, April 5th, 2012

Ben Eishen sent in this link. He says, "I have been thinking about building an ESR meter, and this one looks like a winner." The design is based on the ATMega88 and according to the designer, Dr. Le Hung, "The LCFesR 4.0 unit is a precise, wide range meter that...

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Posted in components, measurement | 1 Comment »

ESR meter build and review

Monday, January 9th, 2012

Wingnut built an Equivalent Series Resistance meter based on this design. He made a couple mods to the original design to get better performance: I used a LMH6619 opamp for the oscillator, this is rail-to-rail output/input and 35mA current sourcing. It was salvaged from another project. Because of this, I...

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Recent Comments

  • KH: TPS62200 will get him to under 15uA, a bit better than the 20-30uA he mentioned. I would try the same thing. Switch some resistors in...
  • KH: Yeah, it's an end-user thing. Very few people would spend hundreds of hours on this kind of project and sustain it. It's more or less...
  • Max: Not quite a dinosaur if you've seen Big Hero 6 though... wait. You've watched it with your kids, didn't you? That's cheating...! ;) One of...
  • Edward Mallon: A visiting researcher dropped by our humble basement workshop with questions about the physical skill level students would need if they added one of our...
  • KH: And that looks really expensive... Only browsed the vid though, I'm an dinosaur so I had the sound off too. Nice of him to open-source...