The newly launched PEL-3000E series by Guwei Electronics is a programmable single channel electronic load, with PEL-3031E providing 300W (1V~150V/60A) voltage/current/resistance/power absorption capability. Inheriting the LCD panel and operation interface of the PEL-3000 series, it is easy to operate and visually clear at a glance. This is a high-speed and accurate measurement and testing model provided by Guwei for the application needs of low and medium power electronic components, batteries, mobile power supplies, and power products.

The PEL-3000E series is suitable for current suction and measurement applications above 60mA, including measurement applications for chargers/adapters, various power supply units, and portable charging devices.

The PEL-3000E provides seven operating modes and three action functions, which are four basic operating modes: constant current, constant voltage, constant resistance, and constant power. In addition, the PEL-3000E also includes constant current+constant voltage, constant resistance+constant voltage, and constant power+constant voltage modes. Users can choose different operating modes according to their product needs before selecting their action mode; And the three action functions are static function, dynamic function, and sequence function, which can be used in testing scenarios where a fixed load suction condition, switching between two suction conditions, and switching between two or more suction conditions can be used.

The Sequence function allows users to set complex load suction conditions. Users can set different suction conditions and times in sequence to establish a series of suction conditions, and execute them sequentially according to the set conditions. For example, simulation testing of electric tools. Using an oscilloscope and current probe for measurement, record the current waveform during the operation of the power tool, and generate a simulated current waveform through electronic load sequence parameter settings for engineering personnel to analyze whether the provided power supply device can supply power to the operation of the power tool normally.

The Soft start function allows users to decide how long it takes to reach the voltage/current/resistance/power suction values set by the electronic load. A typical DC load does not have a soft start function. When controlling high-speed suction current, due to the inductance effect of the external load line, an instantaneous voltage drop is generated at the input end of the electronic load, resulting in a non monotonic increase in output voltage. However, through the soft start function of PEL-3000E, not only can the output voltage meet the monotonic increase, but also the generation of Inrush current and surge voltage at the test object end can be avoided. For example, using power supply+LED+DC load (starting soft start) can avoid damage to the LED caused by Inrush current and surge voltage.

The UVP low input voltage protection function can be applied to battery discharge testing. When the working voltage of the battery is lower than the set value of UVP, the discharge of the battery is stopped to protect the battery. CutOff Time allows users to pre-set the suction time, and the suction deadline is reached. In addition, the PEL-3000E series provides analog control terminals. For users to control PEL-3000E with external voltage, external resistance, and switch, as well as monitor electronic load suction status and alarms from analog control terminals.