Patent ID: 11881781
Assignee: SUMITOMO WIRING SYSTEMS, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The voltage conversion device according to claim 1,
wherein the determination unit has:
a selection unit configured to select the larger value or the smaller value;
a calculation unit configured to calculate a correction value, based on the internal resistance detected by the internal resistance detection unit and the current value detected by the current detection unit; and
an output unit configured to determine the usage duty, based on a value obtained by adding the value selected by the selection unit and the correction value calculated by the calculation unit, and output a PWM signal set to the usage duty, and
the calculation unit determines the correction value so as to increase an absolute value of the correction value as a value of the internal resistance increases, and to increase the absolute value of the correction value as the current value increases, and so as to set the correction value to a positive value if current flows through the first conduction path toward the power unit side, and to set the correction value to a negative value if current flows through the first conduction path toward the voltage conversion unit side.