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Power supply buck controller with switcher

IP.com Disclosure Number: IPCOM000245286D
Publication Date: 2016-Feb-25
Document File: 2 page(s) / 162K

Publishing Venue

The IP.com Prior Art Database

Related People

Ludovic XAVIER - CONTINENTAL Automotive Rambouillet France: INVENTOR

Abstract

Power supplies are needed for all electronic applications. In term of architecture, systems have various needs for low, medium or high current power supplies or a mix of this, all depending of the specific field of application of the system. Today, power supplies available on the market show only a buck controller structure or buck switcher structure, but never in the same package. Another aspect is that the variety of power supplies available is high and does not facilitate the integration. The idea behind the invention is to provide a solution which integrates the combination of the buck controller and of the buck switcher. This will add flexibility.

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Page 01 of 2

Continental Automotive France S.A.S.

POWER SUPPLY BUCK CONTROLLER WITH SWITCHER

FIELD OF APPLICATION

Invention is dealing with power supply architecture in electronic device. More specifically it is related to electronic control units used in automotive industry.

STATE OF THE ART

Power supplies are needed for all electronic applications. In term of architecture, systems have various needs for low, medium or high current power supplies or a mix of this, all depending of the specific field of application of the system.

Today, power supplies available on the market show only a buck controller structure or buck switcher structure, but never in the same package. Another aspect is that the variety of power supplies available is high and does not facilitate the integration.

The idea behind the invention is to provide a solution which integrates the combination of the buck controller and of the buck switcher. This will add flexibility.

Idée : Ludovic XAVIER (Saint-Hilarion - France)


Page 02 of 2

Continental Automotive France S.A.S.

As shown on above figure, the buck synchronous controller provides a good flexibility of the current capability with external mosfet.

The buck synchronous switcher provides the limited current due to internal mosfet but includes the current adjustment. The current limitation selection is done by pin and/or by bus and the current scalability is between 0.5 A and 2.0 A. this allows to downsize the external inductor. It has a common oscillator...