Steuerungsschaltung für mehrere spannungsseitige Schalter

Details

Veröffentlichungs-Nr.

EP2849323

Aktenzeichen

EP13184805

Anmeldetag

17. September 2013

Veröffentlichung

20. April 2016

Erteilung

20. April 2016

Rechtsraum

EP

IPC

H02M1/08H02M3/158H03K17/06H03K17/61

Abstract

The present document relates to the control of high side switches, e.g. the high side switches of half bridges. In particular, the present document relates to an efficient control circuit for controlling a plurality of high side switches. A control circuit (210, 300, 500) for controlling a plurality of parallel high side switches (201, 221) of a respective plurality of parallel bridges is described. The control circuit comprises a charge provisioning unit (213, 513) configured to provide an electrical charge. Furthermore, the control circuit comprises a plurality of sets of high control switches (207, 208; 227, 228) for the plurality of high side switches (201, 221), respectively; wherein each set of high control switches is configured to arrange the charge provisioning unit in parallel to a gate-source capacitance of the respective high side switch. In addition, the control circuit comprises a controller configured to, during a phase of a plurality of different phases, control a respective set of high control switches from the plurality of sets of high control switches to arrange the charge provisioning unit in parallel to the gate-source capacitance of the respective high side switch from the plurality of high side switches, to switch on the respective high side switch.

Anmelder

Firma

Dialog Semiconductor GmbH

Land

🇩🇪 Deutschland

Fachgebiete