DIRECT-CURRENT VOLTAGE CONVERTER WITH BUILT-IN MICROCONTROLLER Russian patent published in 2006 - IPC H02J9/06 

FIELD: electrical engineering; no-break power supplies for important mobile and stationary industrial and military consumers.

SUBSTANCE: proposed converter characterized in electrically isolated circuits and designed to convert ac mains voltage into dc voltage required for feeding power consumers has main line power unit, stand-by line power unit, isolating circuit for power circuits of main line channel inverter control system, isolating circuit for power circuits of stand-by channel inverter control system, main and stand-by voltage conversion channels; main channel has main-channel inverter supplied with power from main line and connected to primary winding of transformer whose secondary winding is connected to load through rectifier; stand-by channel has stand-by channel inverter supplied with power from stand-by line and connected to additional primary winding of transformer; first load check output is connected to first input of main-channel inverter control system incorporating nonvolatile memory, real-time clock, microcontroller, RS-232 interface adapter, analog-to-digital converter, and power switch driver unit; second load check output is connected to first input of stand-by cannel inverter control system also incorporating nonvolatile memory, real-time clock, microcontroller, RS-232 interface adapter, analog-to-digital converter, and power switch driver unit. Unique algorithms affording checkup of main and stand-by line voltage level, evaluation of voltage level across main and stand-by lines within admissible voltage range, load voltage regulation at voltage level across main and stand-by lines kept within permissible range, and transfer of converter control from main-channel control system to stand-by channel one and back are implemented in main and stand-by channel inverter control systems.

EFFECT: enlarged functional capabilities.

3 cl, 4 dwg