Switching type voltage adjuster and slope compensation process thereof

A voltage regulator, slope compensation technology, applied in the direction of DC power input conversion to DC power output, instruments, electrical components, etc., can solve the problems of slow response speed, complicated loop compensation design, etc., to achieve a good boost effect
CN101093958AInactive Publication Date: 2007-12-26MEDIATEK INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MEDIATEK INC
Publication Date
2007-12-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

A switching voltage regulator and slope compensation method thereof are provided. The switching voltage regulator comprises an inductor coupled to a load; a pulse width modulation (PWM) unit comprising an output stage and generating a PWM driving signal to control the output stage, such that the inductor delivers an inductor current signal to the load; and a slope compensation unit outputting a slope compensation signal with a compensation slope proportional to a falling slope of the inductor current signal to the PWM unit according to the inductor current signal. The invention can perform excellent boosting, voltage reduction, and voltage transformation for the power supply.
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Description

technical field

[0001] The present invention relates to DC voltage conversion, in particular to a switchable voltage regulator with slope compensation and a slope compensation method thereof (Switching regulators and slope compensation method thereof). Background technique

[0002] Battery life is a very important consideration in portable electronic systems, especially for consumer electronic products (such as mobile phones, digital cameras, portable computers and other handheld devices). Designers of these products must face the ever-shrinking demands of product size (and battery size) while improving battery life to match or exceed competitors' products.

[0003] In order for a battery to last long, it must optimize the performance of many different electronic components, the most important of which is the voltage regulator. In portable electronic systems, voltage regulators are used to perform power processing tasks such as boosting, bucking, and transforming.

[0004] ...

Claims

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