Common sharing bus control circuit for signal regulation modules
AssigneeSTMicroelectronics S.r.l.
InventorsOsvaldo Zambetti, Alessandro Zafarana
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Abstract
The control circuit is for a current sharing bus integrated in signal regulator modules, particularly voltage regulator modules (VRM), the circuit being of the Average Program (AP) type. The circuit includes a voltage regulator module, including an operational transconductance amplifier, a first current generator, connected to a first input terminal of the operational transconductance amplifier, a second current generator connected to a second input of the operational transconductance amplifier. The operational transconductance amplifier is directly driven by currents Ii generated by the first current generator and second current generator.
Claims6
A control circuit (21) of a current sharing bus (CSB) integrated in signal regulator modules, particularly voltage regulator modules (VRM), said circuit (21) being of the Average Program (AP) type, characterised in that it comprises:
- a voltage regulator module (VRMi), comprising an operational transconductance amplifier (OTAi);
- a first current generator (Gi1), connected to a first input terminal (Pi) of said operational transconductance amplifier (OTAi);
- a second current generator (Gi2) connected to a second input (Ni) of said operational transconductance amplifier (OTAi), said operational transconductance amplifier (OTAi) being directly driven by currents Ii generated by said first current generator Gi1 and second current generator Gi2.
Dependencies are inferred from the claim text.