PMLKBUCKBOOSTEVM

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The PMLKBUCKBOOSTEVM evaluation board serves the purpose of a laboratory tool for characterising DC-DC and AC-DC power converters and testing different operating conditions. In many applications, power components or power devices are critical in guaranteeing the required system’s efficiency and stability. Power components or systems can be evaluated and characterised up to a certain output voltage and current level, power, frequency, etc. The PMLKBUCKBOOSTEVM can take up to 8V in DC (direct current) and 42V in AC (alternating current) up to 5A of maximum current, making it ideally suited for down-conversion and up-conversion applications. The device has two outputs, with up to 42V in AC or 8V in DC.

The board contains components such as MOSFETs, flyback and forward converters, as well as gate drivers and opto-couplers for high-side and low-side switchgating. The application field of the board is versatile since it can be used for various functions, such as a power supply or a battery charger.The board is expandable, so it allows for the connection of additional components (e.g. inrush limiters) to boost the efficiency of the converter, as well as other necessary components for testing and characterization. It provides a precise and accurate source of voltage and current signal to the converter which helps reduce the design cycle time, saving both time and cost.

The working principle of the PMLKBUCKBOOSTEVM is based on the use of a standard 2V-8V input voltage regulator to create a constant output voltage from the input which is then synchronised to the control loop. The two control inputs control the conduction of the MOSFETs, and the on-board opto-couplers control the current sensed at the output of the power module. The status of the MOSFETs and synchronizing signals are monitored using signals on the board or RS232 interface. This helps in troubleshooting and designing the module.

The PMLKBUCKBOOSTEVM provides a good tool for evaluating, measuring, and manipulating DC Power supplies and AC/DC converters. Its design is based on the principle of providing an adjustable and monitored supply voltage and current source, with a 2V-8V input voltage. It is expandable and allows for customisable feedback control and synchronisation of the MOSFETs. The board allows for precise and reliable operation of the power supply, ensuring optimum efficiency. Moreover, it is easy to use and provides a cost-effective solution for quickly detecting and improving flaws in the design of power devices.

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