Patent ID: 9585194
Date: 2017-02-28
CPC Classifications: H05B

Claim:
1. A system for controlling at least one heat source connected to an alternating voltage power supply, the system comprising: a user interface that permits a user to select an output power of the heat source, a rectifier that produces at least one square and periodic rectified signal corresponding to at least one phase of the alternating voltage produced by the power supply, a controller that is configured to receive the rectified signal and which determines the work ratio of said rectified signal, the work ratio being the ratio between the duration of a positive pulse and the duration of a void interval of the rectified signal, and a modifier disposed in series between the power supply and the rectifier that acts upon the at least one phase of the alternating voltage in a manner that causes the work ratio of the rectified signal produced by the rectifier to be dependent on a nominal voltage of the alternating voltage, the controller being capable of controlling the output power of the heat source in accordance with the power selected by the user, and modifying the work cycle of a power signal linked to the heat source in accordance with the determined work ratio in order to compensate possible differences in the nominal voltage between different power supplies.