• Patent Title: CONTROL METHOD FOR CONTROLLING A POWER CONVERTER CIRCUIT AND RESPECTIVE POWER CONVERTER CIRCUIT
  • Application No.: US16083232
    Application Date: 2017-03-08
  • Publication No.: US20190074773A1
    Publication Date: 2019-03-07
  • Inventor: Juan Carlos HERNANDEZ BOTELLALars Press PETERSEN
  • Applicant: GRUNDFOS HOLDING A/S
  • Priority: EP16159368.6 20160309
  • International Application: PCT/EP2017/055410 WO 20170308
  • Main IPC: H02M3/158
  • IPC: H02M3/158
CONTROL METHOD FOR CONTROLLING A POWER CONVERTER CIRCUIT AND RESPECTIVE POWER CONVERTER CIRCUIT
Abstract:
A control method controls a power converter circuit. The power converter circuit includes at least one inductive element (L) storing an output energy, a charging switch (C) for charging the inductive element (L), a releasing switch (R) for releasing the stored output energy from the inductive element (L) and for charging the inductive element (L) with a compensation energy and an output capacitor (Cout) saving the released output energy. The compensation energy is used to achieve Minimized Voltage Switching (MVS) condition when switching on the charging switch (C). A turn on time (te, tdis) of the releasing switch is adjusted by a closed-loop control of a compensation control variable (Vaux)) measured in the power converter circuit or of a characteristic value (Vsample) derived from this compensation control variable (Vaux)), and a respective power converter circuit.
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