Intel Corporation

Nicolas Butzen

Adel A Elsherbini

Shawna M Liff

Georgios C Dogiamis

William J Lambert

Gerald S Pasdast

Krishna Bharath

Harish Krishnamurthy

Sathya Narasimman Tiagaraj

Tamir Salus

Arvind Raghavan

Vivek Kumar Rajan

Timothy Francis Schmidt

Power driver circuits may be used to provide higher voltage capabilities beyond what may managed by a single transistor. To reduce or eliminate effects associated with a stacked transistor voltage driver, a secondary stacked transistor voltage driver may be separated from a primary stacked transistor voltage driver, where the secondary driver is driven using time-shifted control signals. A switching schema may be used to interleave the several cells of a single continuous capacitive voltage regulator. A multi-stage approach may include both a number of fixed-ratio or multi-ratio capacitive voltage converter stages and final stage that is switched out of phase from the preceding stages, where the final stage includes a continuously scalable capacitive converter.

Voltage regulator drivers and converter stages

Embodiments of the present disclosure provide a microelectronic assembly comprising: an integrated circuit (IC) die in a first layer and a plurality of IC dies in a second layer, at least two adjacent IC dies in the plurality being electrically coupled along their proximate edges by the IC die. The first layer and the second layer are electrically and mechanically coupled by interconnects having a pitch of less than 10 micrometers between adjacent interconnects, and the IC die comprises capacitors and voltage regulator circuitry.

Power delivery through capacitor-dies in a multi-layered microelectronic assembly

Techniques and mechanisms for generating an output voltage with a switched capacitor voltage converter (SCVR). In an embodiment, the SCVR comprises converter cores which are coupled in parallel via multiple buses including a first bus, which is to receive an input voltage, and a second bus with which the SCVR is to provide the output voltage based on the input voltage. A first converter core comprises a capacitor and a first hierarchical switch network (HSN) which is coupled between the capacitor and the multiple buses. The first HSN switchedly provides any of multiple conductive paths each between the capacitor and a different respective one of the multiple buses. Two or more of the conductive paths are each provided with at least one same switch circuit of the first HSN. In another embodiment, the first converter core comprises two HSNs which each have a respective branching tree topology.

Switched capacitor voltage converter circuit with a hierarchical switch network

Techniques and mechanisms for determining a mode of operation of a switched capacitor voltage regulator (SCVR). In an embodiment, a controller supports multiple modes of operation of the SCVR, wherein the modes each correspond to a different respective sequence of switch states of a converter core of the SCVR. One of the modes is to provide boost voltage regulation with the SCVR. The controller transitions seamlessly and autonomously between two modes based on respective reference switch states of the two modes. In another embodiment, a mode transition is performed based on a signal which a control sensor generates based on a rate of switch events of the voltage regulator, and predetermined reference information indicating current characteristics of the voltage regulator.

Device, system and method to determine an operational mode of a continuous capacitive voltage regulator

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Portland, OR, United States of America

Nicolas Butzen