UNINTERRUPTIBLE POWER SUPPLY DEVICE Russian patent published in 2022 - IPC H02J9/06 H02H9/04 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular to power supply devices. The effect is achieved by the fact that in an uninterruptible power supply device containing a rectifier connected to the AC supply network, a DC bus connecting the rectifier through the inverter with the first input of the load and through the charger and discharge device and the bypass diode with the battery, a key, a thyristor voltage converter, an AC voltage sensor, a signal comparison unit, a control unit and a voltage setting unit, a DC voltage converter, a second signal comparison unit and a DC voltage sensor are introduced, the input of which is connected to the second input of the load and to the output of the DC voltage converter, and the output of the DC voltage sensor is connected to the first input of the second signal comparison block, to the second input of which the second output of the voltage setting block is connected, the output of the second signal comparison block is connected to the control input of the DC voltage converter, the input of which is connected to the DC bus a.

EFFECT: expanding the functionality of an uninterruptible power supply device for a load containing AC and DC voltage receivers.

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