| 摘要 |
PROBLEM TO BE SOLVED: To properly control a reactor current and an output current even if a difference in magnitude of Vin and Vo occurs in a converter adopting a phase control system.SOLUTION: A bidirectional converter includes: first and second full-bridge inverter circuits; reactors and transformers for insulation that are connected to each of output sides of the first full-bridge inverter circuit and the second full-bridge inverter circuit; a control circuit that receives voltages of a first secondary battery and a second secondary battery, and outputs PWM control signals to each of switch elements on the basis of the voltages; and regeneration circuits that are connected to snubber capacitors of each of the full-bridge inverter circuits and regenerate charge voltages of the snubber capacitors to a power supply. The control circuit outputs a regeneration pulse for controlling on and off of the switch elements for regeneration to discharge the charged electric charges in the snubber capacitors and to regenerate the charges to the power supply. |
