PROCÉDÉ POUR FAIRE FONCTIONNER UN DISPOSITIF D'ALIMENTATION EN ÉNERGIE, DISPOSITIF D'ALIMENTATION EN ÉNERGIE ET SYSTÈME DE TRAITEMENT À HAUTE FRÉQUENCE
An operation method of an electric power source device (200) for operating a high-frequency treatment instrument (100) configured to perform a high-frequency treatment on a biological tissue includes causing a high-frequency electric power source circuit to output electric power (S201)； acquiring an initial impedance value in a first period from a start of the output (S202)； determining an increase rate of an output voltage relative to time (S301)； increasing the output voltage of the high-frequency electric power source circuit in accordance with the increase rate in a second period (S302)； acquiring the value relating to impedance of the biological tissue in the second period (S303)； and terminating the second period after the value relating to the impedance reaches a minimum value (S304).
