Friday, April 14th, 2017
Jakub designed and built a programmable electronic load for Arduino, the MightyWatt R3: MightyWatt R3 is a programmable electronic load. That means you can use it for testing batteries, power supplies, fuel cells, solar cells and other sources of electrical power. You can also make a programmable power supply from a...Tags: electronic load
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Tuesday, January 31st, 2017
Bob writes: What does one do when designing a power supply? Well, build a power supply tester, of course. One of the simplest things to build is a constant current load. This will allow for testing of the endurance of the power supply, as most of the designs out there...Tags: electronic load, power supply
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Monday, January 16th, 2017
Kerry Wong built a 400W/100A electronic load using linear MOSFETs: I bought a couple of IXYS linear MOSFETs (IXTK90N25L2) a while ago to test their capabilities when used as electronic load, and the result was quite impressive. So I decided to build another electronic load using both MOSFETs. As you can...Tags: dummy load, electronic load, Linear MOSFET
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Tuesday, January 20th, 2015
A DIY dynamic electronic load by Jay_Diddy_B over at EEVblog Forum: The dynamic load steps the load current so that the transient response of the power supply being tested can be observed. Features: 0-5A maximum continuous current 0-5A pulsed current at 330Hz Via Hacked Gadgets.Tags: DIY, electronic load
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Thursday, July 10th, 2014
Juan of ssihla build this DIY electronic load. He writes: The design is based on some of the various diy electronics loads out there (like the one from Dave Jones). The mosfet is a P45N03LT , most likely I took it from some of the PC power supply I’ve “recycled”. I’m using...Tags: DIY, electronic load
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Sunday, March 30th, 2014
Here's an old but still good app note from Unitrode (Texas Instruments) on Adjustable Electronics Load. Testing power supply regulation over a specified output current range is greatly simplified with the use of an adjustable electronic load. Load current can be varied from zero to the full rated value with...Tags: app note, electronic load, Texas Instruments
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Friday, October 25th, 2013
Kerry Wong built a DIY constant current/constant power electronic load. It can sink more than 200W of power: A while back I built a simple constant current electronic load using an aluminum HDD cooler case as the heatsink. While it was sufficient for a few amps’ load under low voltages, it could not handle...Tags: ATMega328p, electronic load
Posted in Arduino, DIY | 2 Comments »
Monday, January 21st, 2013
Here's a project log covering the build of an adjustable constant current load. It's capable of sinking up to 7A, and can withstand input voltages up to 60V. The log covers the design, perfboard assembly, and case assembly. An adjustable power load is a piece of test equipment that often...Tags: build, electronic load
Posted in project logs | 1 Comment »
Wednesday, December 26th, 2012
Need to test your power supply with a 20A capable electronic load? Gelbanana is designing just such a device. It's an electronic load designed to spread the heat dissipation through 4 transistors each taking 5 Amps. So far he is testing the cooling system which consists of two massive aluminum...Tags: electronic load, heatsink, Project Log
Posted in project logs | 1 Comment »
