dc-dc converter delay control circuit

A technology of DC-DC and delay control, which is applied in the field of converters, can solve problems such as different analysis methods, failure to meet existing needs, and feedback gain methods that cannot be directly used in DC-DC converters, etc., to achieve simple calculation process and circuit The structure is easy to understand and the effect of low cost

Active Publication Date: 2020-05-22
CHONGQING LZS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In the literature (15) Ablay, G 2015Nonlinear Dyn.81 1795, several new types of delayed chaotic systems were introduced. However, due to the different analysis methods of these systems and the piecewise linear systems of DC-DC converters, the feedback gain is determined in these literatures None of the methods can be directly used in DC-DC converters and cannot meet the existing needs

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Embodiment Construction

[0039] The specific embodiments and working principles of the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] From image 3 It can be seen that a DC-DC converter delay control circuit includes a DC-DC converter. The DC-DC converter includes a main circuit and a control circuit. The control circuit is provided with a drive module that drives the The turn-on and turn-off of the power device in the main circuit is characterized in that: the control circuit is also provided with a delay module and a gain module, the delay module collects the state quantity in the main circuit, and after a delay, outputs a delay signal to In the gain module, after the gain module amplifies the delay signal, the gain signal obtained is input to the driving module.

[0041] In this embodiment, the state quantity is the inductor current i of the main circuit L .

[0042] In this embodiment, the delay module is a first-order delay module.

[00...

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Abstract

The invention discloses a DC-DC converter delay control circuit, including a DC-DC converter, the DC-DC converter includes a main circuit and a control circuit, the control circuit is provided with a drive module, and the drive module drives the The power device in the main circuit is turned on and off, the control circuit is also provided with a delay module and a gain module, the delay module collects the state quantity in the main circuit, and after delay, outputs a delayed signal to the gain module , after the gain module amplifies the delayed signal, the obtained gain signal is input to the driving module. Beneficial effects: the bifurcation and chaos are eliminated, the converter operates stably, and the ripple and stress of switching devices are reduced.

Description

Technical field [0001] The invention relates to the field of converters, in particular to a DC-DC converter delay control circuit. Background technique [0002] The power converter has a very wide range of uses, and as a typical piecewise linear system, it also has extremely important research value in theory. From the literature (1) Aroudi A El, Calvente J, Giral R, Al-NumayM, Martínez-Salamero L 2016IEEE Trans.Ind.Electron.63 4826, it can be seen that the power devices in the power converter work in the switching state, from on to The turn-off conversion is controlled by the control circuit, which makes the power converter a piecewise linear system with negative feedback, which presents a very complex nonlinear dynamic behavior. [0003] The traditional DC-DC converter includes a main circuit and a control circuit. The control circuit is provided with a drive module that drives the power devices in the main circuit to turn on and off, for example, figure 1 A DC-DC converter in w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/155H02M1/14H02M1/08
CPCH02M1/08H02M1/14H02M3/155H02M1/0003
Inventor 马伟张锐胡敏董志明
Owner CHONGQING LZS TECH
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