STABILIZED DC VOLTAGE SOURCE Russian patent published in 2018 - IPC H02J3/46 

FIELD: electrical equipment.

SUBSTANCE: invention relates to electrical equipment, namely to the secondary DC voltage sources. Device contains N voltage converters, each of which includes in series connected primary power supply (1), voltage converter power unit (2), output current sensor (3), voltage divider (4), voltage adder (6), which second input is connected to the current sensor (3) second output via the amplifier (5), the error amplifier (7), which second input is connected to the reference voltage source (8), modulator (9), to which second input the sawtooth voltage generator (10) is connected, and the modulator (9) output is connected to the converter (2) power unit second input, wherein each of the N channels output current sensors (3) first outputs are connected in parallel. Device also contains the voltage converters total output current sensor (11) by the input connected to the current sensor (3) output, total current sensor (11) first output is the load connection device voltage output, voltage divider (12), which input is connected to the current sensor (3) output, controller (13), which first input is connected to the voltage divider 12 output, second input is connected to the reference voltage source (14), third input is connected to the current sensor (11) second output. Controller (13) first output, through the chain in each of the N voltage converters from the sequentially connected opto-coupling unit (15), pulse-width modulated signal normalizer (16), low-pass filter (17) is connected to the voltage adder (6) third input. Through the second opto-coupling unit (18) in each of the N converters, the controller (13) second output is connected to the corresponding sawtooth voltage generator (10) input.

EFFECT: increase in the accuracy of the output voltage on the total load stabilization.

1 cl, 1 dwg