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Switch-mode power supply (smps) controller integrated circuit determining operating characteristics from filter component information

A technology of integrated circuits and controllers, which is applied in the field of setting the operating characteristics of switching power supplies, and can solve problems such as uncertain and stable operation.

Inactive Publication Date: 2012-01-18
MAXIM INTEGRATED PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the wide range of external component values ​​used for typical controller ICs, without some compensation based on the actual external component values ​​chosen for the SMPS design, stable operation cannot be assured, and thus useful estimates of

Method used

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  • Switch-mode power supply (smps) controller integrated circuit determining operating characteristics from filter component information
  • Switch-mode power supply (smps) controller integrated circuit determining operating characteristics from filter component information
  • Switch-mode power supply (smps) controller integrated circuit determining operating characteristics from filter component information

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Embodiment Construction

[0018] The present invention includes switching mode power supply (SMPS) controller integrated circuits (ICs) and their modes of operation. SMPS techniques and ICs in accordance with the present invention convert information indicating the value or type of output filter components of the SMPS, typically, external inductors and capacitors connected to the output terminals of the SMPS. The IC of the present invention includes a "transfer" block that calculates or looks up the values ​​of the SMPS control variables, such as coefficients that determine the response of the digital compensator within the IC. Designers or other end users incorporating this IC into a particular design can easily integrate the The IC makes changes to the external SMPS filter component values ​​without requiring the designer to calculate the actual compensator parameters (eg pole / zero locations, gain terms, coefficients) for a particular set of external SMPS filter components.

[0019] For example, an ...

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Abstract

A switch-mode power supply (SMPS) controller integrated circuit (IC) provides ease of integration and SMPS designs. Value and / or types of components external to the controller IC that affect the SMPS control loop response are provided to the IC and an internal conversion block determines coefficients for a digital compensator in conformity with the provided value / type information. The conversion block may be a look-up table, processor or dedicated logic, and the component value / type information may be provided via terminals of the controller IC via logic state, attached resistance / capacitance or from external storage. Alternatively, the component values may be programmed into non-volatile storage within the controller IC.

Description

technical field [0001] The present invention relates generally to techniques for setting operating characteristics of a switched mode power supply (SMPS), and more particularly to an SMPS controller integrated circuit that internally adjusts operating characteristic parameters derived from specific filter component information. Background technique [0002] Switching power converters, known as switched mode power supplies (SMPS), are currently widely used in applications such as system power supplies, AC power converters, as well as local power supplies, also known as point-of-load (PoL) power supplies, such as for microprocessors voltage regulator module (VRM). In an SMPS, one or more magnetic storage elements, such as inductors or transformers, are energized and blocked by switching circuits, and this stored energy is typically periodically transferred to one or more capacitive storage elements. The output voltage or output current (or an analog of the output voltage / curr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/00
CPCY02B70/1466H02M3/157H02M3/1588Y02B70/10
Inventor J·W·坦普利通
Owner MAXIM INTEGRATED PROD INC
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