Dialog Semiconductor (uk) Limited

Kevin Dowdy

Mark Mercer

Karthik Jayaraman

Holger Petersen

Chanchal Gupta

Aravind Mangudi

William McKillop

Muhammad Nabeel Rahman

The present document describes a power converter configured to convert electrical power at an input voltage at an input of the power converter to electrical power at an output voltage at an output of the power converter. The power converter comprises a first upper capacitor and a first lower capacitor, which are coupled with one another via a first mid node; a second upper capacitor and a second lower capacitor, which are coupled with one another via a second mid node; an inductor; and a set of power switches. In addition, the power converter comprises a control unit which is configured to control the set of power switches such that during an operation cycle the power converter is operated in a first main state and in a second main state in a mutually exclusive manner.

Dual path split-capacitor power converter

A two-stage power converter includes a dual-level driver to control a current conducted by a switch transistor in a charge pump to control the charging of a flying capacitor in the charge pump.

Transient response optimization for charge-pump-based two-stage power converter

A multi-level buck converter is provided with multiple control loops to regulate the output voltage in the presence of over-current conditions and in the vicinity of a 50% duty cycle.

Multi-level buck converter with current limit and 50% duty cycle control

A synchronous buck converter is provided in which a replica transistor has its drain coupled to a drain of the low-side switch transistor. A current sensing amplifier drives a scaled current into the replica transistor such that the drain-to-source voltage of the replica transistor substantially equals the drain-to-source voltage of the low-side switch. The replica transistor is much smaller than the low switch transistor such that the replica transistor's on resistance is higher by a scale factor Kf as compared to the on resistance for the low-side switch transistor.

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Chandler, AZ, United States of America

Kevin Dowdy