Maxim Integrated Products, Inc.

Stmicroelectronics S.r.l.

Tonio Gaetano Biondi

Salvatore Giovanni Pastorina

Andrew J Burstein

Michael D McJimsey

Andrea Pizzutelli

Antonio Magazzu

Giuseppe Greco

Gaetano Bazzano

Thurein Soe Paing

Salvatore Rinaudo

A method for controlling a switched tank converter (STC) includes (a) driving a first resonant tank circuit of the STC at a first frequency and with a first fixed on-time, to obtain a first fixed ratio of output voltage of the STC to input voltage of the STC, while the STC is powering a load having a first magnitude and (b) driving the first resonant tank circuit of the STC at a second frequency and with the first fixed on-time, to obtain the first fixed ratio of output voltage of the STC to input voltage of the STC while the STC is powering a load having a second magnitude. The second frequency is smaller than the first frequency, and the second magnitude is smaller than the first magnitude.

Variable switching frequency switched tank converters and associated methods

A programmable, high efficiency resonant converter includes a resonant cell including a first capacitor and a first inductor, the resonant cell having a voltage output VOUT coupled to the first capacitor with a first switch and a first feedback input coupled to the first inductor; and a hard switching cell including a second capacitor and a second inductor, the hard switching cell having a second feedback input coupled to the second capacitor and a voltage output VX coupled to the second capacitor and to the first feedback input of the resonant cell, whereby a negative current is applied to the resonant cell.

Resonant converter with negative current feedback

A dead time detector detects when a dead time occurs in a switching regulator comprising a high-side switch and a low-side switch and generates an output signal based on a duration of the dead time. A first circuit generates a first turn-on signal to turn on the high-side switch and a first turn-off signal to turn off the low-side switch based on the output signal in response to a first edge of a pulse width modulated pulse. A second circuit generates a second turn-on signal to turn on the low-side switch and a second turn-off signal to turn off the high-side switch based on the output signal in response to a second edge of the pulse width modulated pulse. A controller generates drive signals to drive the high-side and low-side switches based on the first and second turn-on and turn-off signals.

Adaptive dead time control

A method models the electrical characteristics of wide-channel transistors, such as power transistors, by generating a lumped-element distributed circuit model. More specifically, the active area of the transistor is organized in elementary transistor cells, which are substituted by active lumped elements. Similarly the passive area of the transistor is organized in elementary strip-lines, which are substituted by passive lumped elements. Preferably, the parameters of the lumped elements are extracted automatically from layout information, such as path dimensions, and technological data, such as sheet resistance of the metal layers, sheet resistance of the polysilicon layers and oxide thickness.

Method for modeling large-area transistor devices, and computer program product therefor

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Catania, Italy

Tonio Gaetano Biondi