Circuit device for a cooking device, in particular cooking hob, more in particular induction cooking hob, comprising - at least two, in particular two, three or at least three power units (P1, P2, .. PN), each power unit being configured to be supplied with electrical power by a different mains current phase (L1, L2, .. LN), - wherein each power unit (P1, P2, .. PN) comprises frequency converting means (G11 .. GNM), each for supplying at least one induction element with electrical power to generate heating power, - wherein each power unit (P1, P2, .. PN) comprises at least one current conversion unit (C1 .. CN) for converting an input direct or alternating current into one, at least one, two or at least two output direct currents, - wherein each power unit (P1, P2, .. PN) comprises at least one load or at least two loads (D11 .. DN2), in particular one or more low-power loads and/or control units, supplied or to be supplied with electrical power by the output direct current, an output direct current or the output direct currents from the current conversion unit, - wherein a first power unit (P1) comprises a first current conversion unit (C1), in particular for converting an alternating current from a first mains current phase (L1) into one, at least one, two or at least two first output direct currents (I11..IN2), characterised in that - the first output direct current or one of the first output direct currents (I12) of the first power unit (P1) is configured to supply - at least a second current conversion unit (C2) of a second power unit (P2) for converting the first output direct current (I12) into one, at least one, two or at least two second output direct currents. - at least two, in particular two, three or at least three power units (P1, P2, .. PN), each power unit being configured to be supplied with electrical power by a different mains current phase (L1, L2, .. LN), - wherein each power unit (P1, P2, .. PN) comprises frequency converting means (G11 .. GNM), each for supplying at least one induction element with electrical power to generate heating power, - wherein each power unit (P1, P2, .. PN) comprises at least one current conversion unit (C1 .. CN) for converting an input direct or alternating current into one, at least one, two or at least two output direct currents, - wherein each power unit (P1, P2, .. PN) comprises at least one load or at least two loads (D11 .. DN2), in particular one or more low-power loads and/or control units, supplied or to be supplied with electrical power by the output direct current, an output direct current or the output direct currents from the current conversion unit, - wherein a first power unit (P1) comprises a first current conversion unit (C1), in particular for converting an alternating current from a first mains current phase (L1) into one, at least one, two or at least two first output direct currents (I11..IN2), characterised in that - the first output direct current or one of the first output direct currents (I12) of the first power unit (P1) is configured to supply - at least a second current conversion unit (C2) of a second power unit (P2) for converting the first output direct current (I12) into one, at least one, two or at least two second output direct currents. <EOS>