FIELD: electricity.
SUBSTANCE: current value of current is measured directly in a load circuit, it is digitised and saved in the memory of a microcontroller, off-duty ratio of a PDM-signal is calculated in a software-based manner simultaneously using the sequence of saved values and the specified current value, and only afterwards the PDM-signal is formed to control an inverter, and then the output current of the inverter is rectified and smoothened.
EFFECT: high stabilisation of current passing through a load without previous transformation and possibility to adjust the current in the wide range of values from 1 to 25 A.
1 dwg, 3 tbl
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