公开(公告)号：DE60009043T2

公开(公告)日：2004-09-30

申请号：DE60009043

申请日：2000-12-18

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： SAUERLAENDER GEORG ,  DUERBAUM THOMAS ,  RAETS HUBERT

IPC: H02M3/155 ,  H02M3/337 ,  H02M7/523 ,  H05B41/285

Abstract: A converter includes circuit elements for chopping a DC voltage, in which switch-on phases of the circuit elements are alternating. A circuit assembly with resonant elements is used for processing the chopped DC voltage and for producing an output voltage. The voltage present at one of the circuit elements is compared with a threshold in a dead time phase before the circuit element is switched on. The comparison result is used to determine whether an inductive or capacitive converter load is present. Alternatively, a differential quotient of the voltage present at one of the circuit elements during the dead time phase is used to determine whether an inductive or capacitive converter load is present.

公开(公告)号：DE50111610D1

公开(公告)日：2007-01-25

申请号：DE50111610

申请日：2001-04-19

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： RAETS HUBERT ,  BOEKE ULRICH ,  HENTE DIRK

IPC: H02M3/28 ,  H02M3/337 ,  H02M3/335

Abstract: The converter has a switching stage with elements for converting the input DC voltage into a first AC signal, a first resonant circuit for converting the first AC signal into a second AC signal used to form a first output DC voltage, a second resonant circuit for converting the first AC signal into a third AC signal used to form a second output DC voltage and a control circuit for setting first AC signal frequency ranges. The converter has a switching stage with switching elements (2,3) for converting the input DC voltage (1) into a first AC signal (VAC1), a first resonant circuit (8) for converting the first AC signal into a second AC signal (VAC2) used to form a first output DC voltage (14), a second resonant circuit (16) for converting the first AC signal into a third AC signal (VAC3) used to form a second output DC voltage (21) and a control circuit (24) for setting various frequency ranges for the first AC signal. Independent claims are also included for the following: a supply stage with a DC-DC converter.

公开(公告)号：DE60009043D1

公开(公告)日：2004-04-22

申请号：DE60009043

申请日：2000-12-18

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： SAUERLAENDER GEORG ,  DUERBAUM THOMAS ,  RAETS HUBERT

IPC: H02M3/155 ,  H02M3/337 ,  H02M7/523 ,  H05B41/285

Abstract: A converter includes circuit elements for chopping a DC voltage, in which switch-on phases of the circuit elements are alternating. A circuit assembly with resonant elements is used for processing the chopped DC voltage and for producing an output voltage. The voltage present at one of the circuit elements is compared with a threshold in a dead time phase before the circuit element is switched on. The comparison result is used to determine whether an inductive or capacitive converter load is present. Alternatively, a differential quotient of the voltage present at one of the circuit elements during the dead time phase is used to determine whether an inductive or capacitive converter load is present.