Electronic Load Tester Schematic
These transient loads simulate the fast logic switching in the microprocessor. A 12VDC power supply is all that is required by the Electronic.
Test equipment circuit diagrams and electronic projects.

Electronic load tester schematic. Electronic load systems are also useful for aerospace commercial electronics. Constant power would come in handy when measuring battery capacities Wh or testing power supplies for instance. For paid software firmware hardware design and consulting.
The advantage of such a dc load is that you can. 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. In this tutorial we will learn how to build our very own Adjustable Electronic Load using Arduino.
Start date Oct 26 2014. Use a push-button switch as a test switch so the battery being tested cannot be left under load by accident. June 23 2011 519 am.
Almost every vehicle either in the air on land and at sea have a battery. The figure below shows a simplified schematic for an electronic load operating in constant-voltage mode. Just dial the knob on how much current draw youd like from a few milliamps to several amps and the electronic load will do its job of dissipating all that Power Volts x Current from your PSU under test.
Some circuits would be illegal to operate in most countries and others are dangerous to construct and should not be attempted by the inexperienced. DIY Constant Current Load. In this small project I will show you how to make a simple adjustable constant current load.
This the second revision of my electronic load. This active load can provide a dc load for a power supply and it can rapidly switch between dc levels. The software is made by my brother Bertrik.
You would use this mode to test a battery charging circuit. In this mode the electronic load will maintain a constant voltage across the device under test. The 10K multi-turn preset potentiometer P1 lets you adjust the current fine and precise.
The maximum battery voltage that the tester can handle is set by T5 and here it is 30 V. The schematic below shows this electronic load design. Thread starter Rich D.
Such a gadget is useful if you want to measure the capacity of chinese Li-Ion batteries. Electronic Load Tester. Here is a read on the way to do it.
Ronv Well-Known Member. In this project we will design an build an Electronic DC Load which is capable of Constant Current Constant Power and Constant Resistance. Battery Load Tester Circuit Project.
Electronic loads are used by car battery manufacturers fuel-cell manufacturers motor manufacturers cell-phone manufacturers solar panel manufacturers oil gas and in other industries where power must be tested and they are useful to determine characteristics and providing discharge test data for engineers. Below are links for the prototype software plus a. The load can be easily set using the Arduino Serial Monitor.
It is intended for testing DC power supplies solar panels and battery capacity. Status Not open for further replies. See the part under electronic load.
The design will use a rotary encoder for input entry and a 204 LCD display as the user interface. To make the schematic less cluttered I had deliberately omitted the filtering capacitors and decoupling capacitors. To ensure that T1 does not get too warm at high battery voltages keep the test as short as possible.
In CV mode the feedback signal is generated by a precision voltage divider. Electronic DC Load Schematic v1 One-part of an LM358N op-amp IC2 is used here as the core component. Oct 31 2014 21 I dont see a schematic but I suspect it is a push pull arrangement like this.
In the below schematic the operational amplifier has two sections. Start light to heavy duty equipment therefore you need a battery load tester available at any time. Or you can test how stable your power supply is with a certain load.
First Prev 2 of 2 Go to page. Attach a file by drag drop or click to upload. You use an active-load test circuit to ensure that a power supply for a microprocessor or for other digital loads supplies 100A transient currents.
Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy. To accommodate this I decided to use an Arduino ATmega328p microcontroller. I have designed the circuit to use a logic level MOSFET IRL540N T1 so that we can power the circuit from a voltage much smaller than 9V.
Ideally your regulator output is invariant during a load. So I decided to build another electronic load. One is to control the MOSFET and the other one is to amplify the sensed current.
In this project I am building an analog adjustable dc load with parts easily obtainable from ebay and banggood. Follow me on Facebook for daily updates. Arduino DC Electronic Load Circuit Diagram.
It is special because the hardware and software is open source it is Arduino compatible and it is a cheap tool all hardware designers should have. Download 131 KB Replace Electronic_Dc_Load_schematicpdf. In Part 1 of this project we will discuss the basic design and then build and test the initial prototype.
You can also check the video at the bottom of this page which explains the complete working. Having a system that is. A new branch will be created in your fork and a new merge request will be started.
DIY Adjustable Electronic DC Load. This is an adjustable constant current Electronic Load used for testing of power supplies DC-DC converters or batteries. A 400W 1kW Peak 100A Electronic Load Using Linear MOSFETs.
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