Abstract: A close control of electric power converters includes a diode D1 in parallel with a switch I1; a diode D2 in parallel with a switch I2; a transformer (T1). The switches (I1, I2) are controlled, cyclically repeating the following stages: at a time T0 the switch I1 is switched on; at a time T1 the switch I1 is switched off; the switch I2 is switched on before the current passing through the diode D2 reaches zero; at a time T3 the switch I2 is switched off; and at a time T4, when the diode D1 becomes conductive, the first stage is returned to. In particular, the close control of electric power converters relates to electrically isolated electric power supplies working at high frequency with high efficiency and a high level of integration.

Abstract: Embodiments of the present invention relate to a method and device for regulating a series resonant inverter with controlled rectification. It also relates to a resonant inverter equipped with such a device. The synchronous series resonant inverter includes a primary winding having across its terminals a periodic voltage V(t) of period T, this primary winding being coupled to at least one secondary winding providing the output voltage Vs. The establishment of the current IT(t) in the secondary winding is controlled within the period T. The output voltage Vs is regulated as a function of the phase shift angle ? between the zero crossing of the voltage V(t) across the terminals of the primary winding and the instant of establishment of the current IT(t) in the secondary winding. Embodiments include the production of isolated switched power supplies having a high level of integration, operating at a switching frequency of several megahertz.

Abstract: Embodiments of the present invention relate to a method and device for regulating a series resonant inverter with controlled rectification. It also relates to a resonant inverter equipped with such a device. The synchronous series resonant inverter includes a primary winding having across its terminals a periodic voltage V(t) of period T, this primary winding being coupled to at least one secondary winding providing the output voltage Vs. The establishment of the current IT(t) in the secondary winding is controlled within the period T. The output voltage Vs is regulated as a function of the phase shift angle ? between the zero crossing of the voltage V(t) across the terminals of the primary winding and the instant of establishment of the current IT(t) in the secondary winding. Embodiments include the production of isolated switched power supplies having a high level of integration, operating at a switching frequency of several megahertz.

Abstract: The invention relates to a close control of electric power converters. It comprises: a diode D1 in parallel with a switch I1, a diode D2 in parallel with a switch I2, and a transformer (T1). The switches (I1, I2) are controlled, cyclically repeating the following stages: At a time T0 the switch I1 is switched on. At a time T1 the switch I1 is switched off. The switch I2 is switched on before the current passing through the diode D2 reaches zero. At a time T3 the switch I2 is switched off. At a time T4, when the diode D1 becomes conductive, the first stage is returned to on. In particular, the invention relates to electrically isolated electric power supplies working at high frequency with high efficiency and a high level of integration.