Soft-switching control device and method of manufacturing the same

A method of manufacturing a soft-switching control device,

• wherein the soft-switching control device comprises:
• a main switching element included in a power conversion circuit, the main switching element being switched on and off selectively for power conversion;
• first control means for controlling the main switching element such that the main switching element is switched on, through soft-switching control, in response to a first operation signal produced with a delay time,
• a circuit comprising:
• a sub switching element selectively switched on and off in response to a second operation signal, the delay time being assigned to an interval from a reference timing to a timing at which the main switching element is switched on, and
• second control means for controlling a switching state of the sub switching element by the second operation signal,
• a storage means for previously storing a delay correction amount for correcting error in the delay time, wherein the storage means stores the delay correction amount separately for each of a plurality of temperature ranges divided based on temperature of the power conversion circuit;
• and
• a correcting means for correcting the delay time based on the delay correction amount;
• the method comprising:
• a detecting step of detecting the error in delay time by transmitting a command for switching the switching state to the switching element;
• and
• a storage step of generating the delay time amount based on the error in delay time detected at the detecting step and storing the generated delay time amount in the storage means.