Switching power converter with a maximum current mode control
AssigneeThales
InventorsFrançois KLEIN, Christophe TAURAND
Life of this patent
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Abstract
A converter comprising a switch and a control device in “peak charge” mode for generating a command of the switch, and which comprises an error corrector between an output voltage and a reference voltage, a comparison means between a reference charge and a measured charge resulting from the time integration of the current circulating in the switch to develop the command signal, the error signal at the output of the error corrector being a reference power, the control device comprising a conversion unit comprising a divider dividing the reference power by the input voltage to obtain the reference charge.
Claims9
A switching power converter comprising:
- a controllable switch;
- and
- a control device for generating a command signal of the controllable switch at opening and closing moments, said control device being a “peak charge” control mode device and comprising:
- an error corrector for comparing an output voltage of the switching power converter and a reference voltage;
- and
- a comparison means between a reference charge and a measured charge resulting from a time integration of a measurement of a current circulating in the controllable switch to obtain the command signal,
- wherein, an error signal at the output of the error corrector being a reference power, the control device further includes a conversion unit outputting the reference charge from the reference power, the conversion unit comprising a divider dividing the reference power by a voltage corresponding to the input voltage of the switching power converter to obtain the reference charge.
Dependencies are inferred from the claim text.