Electronic Load For Testing Power Supply

We have a lineup of CD series and CDPU series which are a chargedischarge power supplies that can be used for repeated tests of charging and discharging various rechargeable batteries. An electronic load also known as a constant current dummy load is a device design so a power supply can draw a certain amount of current without dissipating too much of heat.

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Electronic load also allows a quick verification of power supply ratings.

Electronic load for testing power supply. If we have high power variable resistor such as tapped wire-wound resistor we can directly connect this resistor and make some measurement. Electronic loads can be used to directly test the capacity of a battery. Electronic loads are used in a variety of tests including power supply tests and battery tests.

Perform both static and dynamic tests to ensure that your devices can handle the steady state and occasional transient loads. In such cases only a fraction of the power rating of the power supply is required. Configure the load for Constant Current CC set the voltage and current ranges to the lowest ranges that still accommodate the requirements of the test set the current load.

Chroma is the global leader in Electronic Load manufacturing for product design validation and functional testing. Designers use electronic dc loads for testing power supplies and sources such as solar arrays or batteries but commercial ones are often expensive. By using a power MOSFET in its linear region you can build your own Figure 1.

They are typically pro-grammable although mostrequire external DAC program-mers. It even offers an adjustable soft-start functionality which can be used to reduce the startup load of the lab power supply. Electronic loads are also used in battery.

The PLZ-4WH Series Electronic Load unit is a multifunctional system designed to offer the highest levels of reliability and safety with operation function of constant voltage constant current constant power and constant resistance mode. An electronic load is a type of instrument that applies a voltage and sinks current. Electronic load as a new type of electronic equipment has been widely used in power testing and plays a very important role in technology guidance.

Loading the circuit under test A very convenient way of loading the circuit under test is to use an electronic load box. Keysights DC electronic loads provide you with the flexibility to test a wide range of power sources. Chroma has a wide variety of instrumentation including AC Power Sources DC Power Supplies DC Electronic Loads AC Electronic Loads Digital Power Meters and Automatic Test Systems that are ideal for power inputoutput terminal tests and dynamic simulation.

You can program them to provide exactly the kind of load that you need for the device you are testing. Also known as a DC programmable load these AC or DC electronic loads are used by power supply battery solar wind or other manufacturers who want to thoroughly test their power sources. The 16-bit voltage current and power-measurement systems provide accuracy analysis.

Chroma programmable DC Loads are used for power conversion testing in all markets including automated test systems LED drivers power supply testing battery testing and fuel cell testing. That means an electronic load of 90-100W is sufficient to test the supply. An example of a step-down power supply is the National Semiconductor LM5575 Simple Switcher.

This paper presents a variety of electronic load power testing methods and conducts empirical analysis. To improve the performance of a power supply an electronic load may be used as a high-speed current modulator. One of the most common ways to use an electronic load is in the constant current CC mode.

This can be done in constant power mode CP to provide a consistent drain that does not change as the battery voltage drops. Charge and discharge power supply for battery inspection Electronic loads are also used for battery charge and discharge tests. DC Variable Electronic load for SMPS Testing G A Rathy1 Aravind balaji2 1.

Unfortunately this kind of high power resistor is expensive and not so flexible getting wide adjustment range. Basically when you dial in a current level the electronic load circuitry will draw only that amount of. To test real capacity of a power supply we need a load with variable current consumption.

Electronic loads can facilitatepower supply testing in severalways. Connect the SDL electronic DC load to the output of the power supply to test.

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