The buffer power supply is intended to supply without interruption devices requiring a stabilized voltage of 12V (- / + 15%). The principle of linear regulation ensures a reduced level of residual noise and faster response to disturbances than in the case of a pulse modulator stabilizer. The power supply supplies the voltage VDC = 12.8V ÷ 13.8V / DC with a current efficiency of IMAX = 2A. In the case of a power failure in the sector there is an immediate switching on the power supply of the device by the battery. The battery is not protected against excessive discharging. The power supply has been designed in accordance with the EMC and LVD requirements of the European Union.