Skip to content

Experimental Engineering

  • The Engineer
    • The Tools
    • The Shack
    • OpenPGP Public Key
    • Contact The Engineer
  • Circuit Simulator
  • Project List
  • Photo Albums
    • Whitby Camping Trip – August 2020
    • Electric Glassware Collection
    • Glasgow Transport Museum 2018
    • Astle Park Steam Rally 2017
    • Anson Engine Museum 29-08-16
    • Download Festival Photo Albums
      • Download Festival 2009
      • Download Festival 2010
      • Download Festival 2011
      • Download Festival 2014
      • Download Festival 2015
      • Download Festival 2016
      • Download Festival 2017
        • Demolition Download IV
      • Download Festival 2018
        • Demolition Download V
        • Lords Of Lightning
        • Circus Of Horrors
      • Download Festival 2019
      • Download Festival 2020
      • Download Festival 2022

Tag: DC-DC converter

Cat Links Arduino, Personal Project

Arduino Milliohm Meter Build

Posted on November 2, 2017November 2, 2017 The Engineer

During the rebuild of the wheelchair motors for the support trolley, I found myself needing an accurate milliohm meter to test the armature windings with. Commercial instruments like these are expensive, but some Google searching found a milliohm meter project based around the Arduino from Circuit Cellar. Here’s the original

Continue readingArduino Milliohm Meter Build

Cat Links Teardown

EpEver Tracer 4210A MPPT Solar Charge Controller Teardown

Posted on August 19, 2017August 17, 2017 The Engineer

Here’s the solar charge controller to go with the MT50 from the last post. This is the 40A version of the EpEver Tracer A series, the 4210A. This unit is large, and very heavy. Most of this weight comes from the enormous heatsink which doubles as the mounting plate for

Continue readingEpEver Tracer 4210A MPPT Solar Charge Controller Teardown

Cat Links Computer Gear, Teardown

LG Flatron 22EA53VQ-P Power Issue

Posted on October 27, 2016 The Engineer

I was recently given a pretty nice LED backlit 1080p LG monitor, with the instruction that it wouldn’t power on correctly. The monitor would power on as far as the standby light, but when fully powered on, would flash the backlight momentarily then shut down. A power supply issue was

Continue readingLG Flatron 22EA53VQ-P Power Issue

Cat Links CRT Tech, Personal Project, Teardown

Sony Watchman FD-280 Teardown

Posted on August 25, 2016October 16, 2019 The Engineer

Here’s another Sony Flat CRT TV, the FD0280. This one was apparently the last to use CRT technology, later devices were LCD based. This one certainly doesn’t feel as well made as the last one, with no metal parts at all in the frame, just moulded plastic. Being a later

Continue readingSony Watchman FD-280 Teardown

Cat Links Consumer Gear, Randoms, Teardown

Dyson DC16 Handheld Teardown

Posted on March 1, 2016 The Engineer

The Dyson DC16 is one of the older handheld vacuums, before the introduction of the “Digital Motor”. (Marketing obviously didn’t think “Switched Reluctance Motor” sounded quite as good). These vacuums have a very large DC brush motor driving the suction turbine instead, the same as would be found in a

Continue readingDyson DC16 Handheld Teardown

Cat Links Randoms, Teardown

De La Rue Coin Counting Machine Followup – PSU Oddness

Posted on February 8, 2016 The Engineer

I did a little more digging into the PSU circuitry of the small coin counting machine, and it’s even more strange than I thought! The part I originally thought was a transformer on the PSU board is in fact a DC-DC converter module! Here’s the device after desoldering it from

Continue readingDe La Rue Coin Counting Machine Followup – PSU Oddness

Cat Links Randoms, Teardown

Turnigy Accucell 6 Multi-Chemistry Charger

Posted on January 23, 2016 The Engineer

A lot of the electronics I use & projects I construct use batteries, mainly of the lithium variety. As charging this chemistry can be a little explosive if not done correctly, I decided a proper charger was required. This charger is capable of handling packs up to 6 cells for

Continue readingTurnigy Accucell 6 Multi-Chemistry Charger

Cat Links Consumer Gear, Hacks, Personal Project, Randoms

ViewSonic VA2232W-LED Monitor 12v Conversion

Posted on December 15, 2015 The Engineer

On the quest to get things on board replaced that are heavy users of power, the monitor in the main cabin was next. The original CCFL-backlit monitor was very heavy on 12v power, at 5A. This meant falling asleep watching TV would result in severely flattened batteries. Replacement with a

Continue readingViewSonic VA2232W-LED Monitor 12v Conversion

Cat Links Hacks, Personal Project

Rigol DS1054Z 12v Power Supply Project – Completion

Posted on August 27, 2015August 27, 2015 The Engineer

All of the parts I required to complete the supply arrived this morning. After several hours of building, here’s what I came up with: I’ve mounted everything on a piece of FR4 PCB, with it’s copper plane grounded to the case. This backing board is the same size as the

Continue readingRigol DS1054Z 12v Power Supply Project – Completion

Cat Links Personal Project

12v Temperature Controlled Soldering Iron

Posted on August 6, 2015 The Engineer

In my shack, 99% of my gear is all 12v powered, which is good for a few reasons: Single Power Supply – This increases efficiency, as I’m only getting the losses of a single supply. Safety – Mains voltages are dangerous, I’m not fond of working on such equipment. Portability

Continue reading12v Temperature Controlled Soldering Iron

Cat Links Personal Project

Upcoming Project – Monster DC-DC Converter

Posted on July 20, 2015 The Engineer

Here’s a sneak preview of my next upcoming project. The target is building a monster DC-DC converter, capable of 70A continuous output, 100A surge. Here’s the 10 modules, each rated at up to 7A continuous & 10A surge. I ordered so many that they turned up still panelised! 00

Cat Links Personal Project, Randoms

Precision 10v & 5v Reference

Posted on May 2, 2015May 2, 2015 The Engineer

After watching a video over at Scullcom Hobby Electronics on YouTube, I figured I’d build one of these precision references to calibrate my multimeters. It’s based around a REF102P 10v precision reference & an INA105P precision unity gain differential amplifier. For full information, check out the video, I won’t go

Continue readingPrecision 10v & 5v Reference

Cat Links Personal Project, Randoms, RasPi

Raspberry Pi Timelapse Setup

Posted on August 12, 2014 The Engineer

Here is the setup used to create the previous videos, the PiCE from Elson Designs makes the Pi water resistant, the only slight modification being to install a 2.5mm DC Barrel Jack into one of the grommet holes in the rear coupled with a custom DC-DC converter to power the

Continue readingRaspberry Pi Timelapse Setup

Cat Links Hacks, Personal Project

Mobile Power Pack Upgrade

Posted on August 12, 2013 The Engineer

The original LM2577 based regulators I designed into my mobile battery pack turned out to be insufficient for requirements, therefore they have been replaced with higher capacity regulators. The 12v regulator (left) is a muRata UQQ-12/8-Q12P-C SEPIC converter, providing a max of 8A at 12.1v DC. The 12v rail is

Continue readingMobile Power Pack Upgrade

Cat Links Personal Project

2600 Farad Ultra Capacitors

Posted on July 22, 2012 The Engineer

Just a quickie to note down the current progress of another project – Ultracapacitors. Pictured right is a bank of 6 2.5v 2600F Maxwell Boostcaps, for a total of 15v at 433.333F. A total energy storage of  48.7kJ. Coming soon will be the inclusion of charge balancing, using Zener diodes &

Continue reading2600 Farad Ultra Capacitors

Tip Jar

If you’ve found my content useful, please consider leaving a donation by clicking the Tip Jar below!
All collected funds go towards new content & the costs of keeping the server online.

  • Electronic Calculators
  • Ohm’s Law Calculator
  • Grid Square Locator
  • Crimp Connector Types

Blogroll

  • Arduino ccTalk Tutorials
  • Distant Signal Radio
  • Skippy's Random Ramblings

Hardware Interfacing

  • Arduino ccTalk Tutorials

Archives

  • Helium Neon Lasers
    • He-Ne Lasers – Introduction
    • Applications of a 1mW Helium-Neon Laser
    • He-Ne Laser Safety
      • Laser Safety Classifications
    • Theory of Operation, Modes, Coherence Length
    • He-Ne Laser Tubes, Heads, Structure, Power Requirements, Lifetime
    • Power Requirements for He-Ne Lasers
      • Modular He-Ne Laser Power Supply
    • Wavelengths, Beam Characteristics
    • Magnets in High Power or Precision He-Ne Laser Heads
    • Internal Mirror He-Ne Tubes up to 35 mW – Red and Other Colours
    • Viewing Spectral Lines in Discharge, Other Colours in Output
    • Demonstration He-Ne Lasers, Weatherproofing
    • Interesting, Strange, and Unidentified He-Ne Lasers

Recent Posts

  • Brsk Updates – A New Network Link
  • Melles-Griot 05-LHR-088 Helium-Neon Laser
  • Infrastructure Updates & The Cost Of Living
  • FTTP Has Arrived – With Some Caveats
  • DIY Thermal Laser Power Sensor Build
Copyright © 2022 Experimental Engineering | Signify Dark by WEN Themes
Scroll Up