The invention relates to a converter assembly comprising at least two converters (7, 7ʹ) and a control unit (1) connected to the converters (7, 7ʹ), wherein the control unit (1) is designed, continuously or at discrete time intervals, to transmit to the converters (7, 7ʹ) their permissible electrical power range, in particular their minimum power value P.sub.min and/or their maximum power value P.sub.max, to determine the current power balance of the individual converters (7, 7ʹ) or to receive it from same, and to adjust the permissible electrical power range of the converters (7, 7ʹ) in such a way that the power balance of the entire converter assembly does not leave a predefined range. The invention also relates to a method for operating a converter assembly of this type.

The invention relates to a converter assembly comprising at least two converters (7, 7ʹ) and a control unit (1) connected to the converters (7, 7ʹ), wherein the control unit (1) is designed, continuously or at discrete time intervals, to transmit to the converters (7, 7ʹ) their permissible electrical power range, in particular their minimum power value P.sub.min and/or their maximum power value P.sub.max, to determine the current power balance of the individual converters (7, 7ʹ) or to receive it from same, and to adjust the permissible electrical power range of the converters (7, 7ʹ) in such a way that the power balance of the entire converter assembly does not leave a predefined range. The invention also relates to a method for operating a converter assembly of this type.

A method for controlling a power conversion system includes: configuring a carrier period of the power modules, and configuring a phase shift of carrier waves of the adjacent power modules to be 2π/N; selecting M power modules to operate within the carrier period, where O≤M≤N, and providing a modulation wave to the power modules, an amplitude of the modulation wave being A/N of a carrier peak of the carrier waves; and comparing the value of the modulation wave with a value of the carrier wave of each of the power modules, respectively, wherein, when the value of the modulation wave is greater than the value of the carrier wave, the corresponding power module runs; when the value of the modulation wave is less than or equal to the value of the carrier wave, the corresponding power module stops.

A method for controlling a power conversion system includes: configuring a carrier period of the power modules, and configuring a phase shift of carrier waves of the adjacent power modules to be 2π/N; selecting M power modules to operate within the carrier period, where O≤M≤N, and providing a modulation wave to the power modules, an amplitude of the modulation wave being A/N of a carrier peak of the carrier waves; and comparing the value of the modulation wave with a value of the carrier wave of each of the power modules, respectively, wherein, when the value of the modulation wave is greater than the value of the carrier wave, the corresponding power module runs; when the value of the modulation wave is less than or equal to the value of the carrier wave, the corresponding power module stops.

A current limit peak regulation circuit, a current limit circuit and a power converter including the current limit peak regulation circuit. The current limit peak regulation circuit provides a current limit threshold to limit a maximum allowable peak current value of a current flowing through a main switch of the power converter and adjusts the current limit threshold to decrease with decrease in a switching frequency of the power converter when the power converter is in a constant voltage mode so as to reduce power dissipation of the power converter in standby mode.

A current limit peak regulation circuit, a current limit circuit and a power converter including the current limit peak regulation circuit. The current limit peak regulation circuit provides a current limit threshold to limit a maximum allowable peak current value of a current flowing through a main switch of the power converter and adjusts the current limit threshold to decrease with decrease in a switching frequency of the power converter when the power converter is in a constant voltage mode so as to reduce power dissipation of the power converter in standby mode.

An electrical pulse generator for ohmic-inductive loads with a capacitive module in which a primary capacitor is charged by a first generator for generating voltage pulses, with high capacity and high voltage, on an ohmic-inductive load. In the capacitive module there is also a secondary capacitor or supercapacitor with a very high capacity, charged by a second generator designed to continuously supply voltage to the load. An electronic splitter, or Chopper is interposed between the capacitive module and the load which splits the voltage supplied by the capacitive module according to modulated high frequency pulses, in such a way that the value of the voltage supplied to the load is constant.

An electrical pulse generator for ohmic-inductive loads with a capacitive module in which a primary capacitor is charged by a first generator for generating voltage pulses, with high capacity and high voltage, on an ohmic-inductive load. In the capacitive module there is also a secondary capacitor or supercapacitor with a very high capacity, charged by a second generator designed to continuously supply voltage to the load. An electronic splitter, or Chopper is interposed between the capacitive module and the load which splits the voltage supplied by the capacitive module according to modulated high frequency pulses, in such a way that the value of the voltage supplied to the load is constant.

A method for communicating with a power converter comprises initiating a communication sequence by sensing a first distortion of a sensed waveform during a discharge period of a first power transfer cycle of the power converter. The sensed waveform is proportional to a secondary current of the power converter. At a primary side of the power converter, a data bit is received from a secondary side of the power converter, by sensing a second distortion to represent one state of the data bit and sending an absence of the second distortion to represent another state of the data bit. The secondary distortion is applied to the secondary current during the discharge period of a subsequent power transfer cycle.

A method for communicating with a power converter comprises initiating a communication sequence by sensing a first distortion of a sensed waveform during a discharge period of a first power transfer cycle of the power converter. The sensed waveform is proportional to a secondary current of the power converter. At a primary side of the power converter, a data bit is received from a secondary side of the power converter, by sensing a second distortion to represent one state of the data bit and sending an absence of the second distortion to represent another state of the data bit. The secondary distortion is applied to the secondary current during the discharge period of a subsequent power transfer cycle.