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Control module with an estimator of an input electric quantity for a switching converter and method for controlling a switching converter

A control module and control switch technology, applied in the direction of converting AC power input to DC power output, converting DC power input to DC power output, adjusting electrical variables, etc.

Active Publication Date: 2016-08-31
STMICROELECTRONICS SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is necessarily accompanied by dissipation across the resistive divider, which can range from about ten milliwatts to tens of milliwatts depending on the relevant application and corresponding size of the switching converter

Method used

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  • Control module with an estimator of an input electric quantity for a switching converter and method for controlling a switching converter
  • Control module with an estimator of an input electric quantity for a switching converter and method for controlling a switching converter
  • Control module with an estimator of an input electric quantity for a switching converter and method for controlling a switching converter

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Experimental program
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Embodiment Construction

[0066] The applicant of the present invention has figured out how, given a switching converter, it is possible to generate, without the aid of a resistive divider, but using an estimator circuit, a voltage equal to the input voltage V in (θ) proportional signal, the estimator circuit in use receives an input signal generated by a switching converter. That is, in the following the control module of the present invention will be described with reference to a boost converter, even though different types of converters may be used with the present invention. Specifically, the control module of the present invention refers to Figure 7 The boost converter 60 shown in , which in turn is described with reference to Figure 5 The boost converter 50 in is described. Components in boost converter 60 that are already present in boost converter 50 are designated with the same reference numerals unless otherwise noted.

[0067] In particular, the control module (indicated at 65 ) of the ...

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Abstract

Various embodiments of the present invention are directed to a control module for an estimator of input electrical quantity for a switching converter and a method for controlling a switching converter. A module for controlling a switching converter (60; 90; 120), the module comprising at least one inductor element (Lp; L1) and a switching element (M), and from an input electrical The quantity (Vin) produces the output electrical quantity (Vout). The control module generates a command signal (sGD) for controlling the switching of the switching elements and includes an estimator stage (24,67; 167) that is based on the command signal (sGD) and on the basis of a signal indicative of inductive element demagnetization (SZCD) of the time interval to generate an estimated signal (Ve) proportional to the input electrical quantity (Vin). The control module generates a command signal (sGD) based on the estimated signal (Ve).

Description

technical field [0001] The invention relates to a control module for a switching converter comprising an estimator of an input electrical quantity. Furthermore, the invention relates to a method for controlling a switching converter. Background technique [0002] As is well known, there are various types of switching converters, which may include, for example, flyback converters, boost converters, and buck converters. [0003] In general, in the field of switching converters, there is a particular need to provide converters which are characterized by a high power factor together with low total harmonic distortion (THD) and low no-load power dissipation. To obtain the above characteristics, for example, switching converters are known to employ such figure 1 The circuit layout shown in . [0004] in particular, figure 1 A flyback type switching power supply 1 is shown, hereinafter referred to as "flyback power supply 1". [0005] In more detail, the flyback power supply 1...

Claims

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Application Information

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IPC IPC(8): H02M7/217H02M3/335
CPCH02M1/4225H02M1/4258Y02B70/10H05B47/10H05B45/37H02M1/0025H02M1/0048H02M1/0064Y02B20/30H02M1/0058H02M3/157
Inventor G·格里蒂C·阿德拉格纳
Owner STMICROELECTRONICS SRL