Unlock instant, AI-driven research and patent intelligence for your innovation.

Boost type circuit based on input voltage feedforward control and control method thereof

An input voltage, feedforward control technology, applied in control/regulation systems, output power conversion devices, DC power input conversion to DC power output, etc., can solve the problems of large dynamic fluctuation amplitude and slow dynamic response, and achieve Reduce the dynamic fluctuation amplitude and improve the effect of dynamic response

Active Publication Date: 2015-08-05
NANJING SILERGY SEMICON TECH CO LTD
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a Boost type circuit based on input voltage feedforward control and its control method to solve the technical problems of slow dynamic response and large dynamic fluctuation amplitude in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Boost type circuit based on input voltage feedforward control and control method thereof
  • Boost type circuit based on input voltage feedforward control and control method thereof
  • Boost type circuit based on input voltage feedforward control and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made within the spirit and scope of the present invention.

[0023] In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0024] In the following paragraphs the invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that all the drawings are in simplified form and use inaccurate scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a boost type circuit based on input voltage feedforward control and a control method thereof. On the basis of the input voltage feedforward control mode, an input voltage sampling signal being proportional to an input voltage is superposed with a triangular wave signal; and the superposed signal is compared with an error amplification signal so as to obtain a turn-off signal for turning off a main power switch tube. When the circuit works normally, peak values of the error amplification signal and a first triangular wave signal are basically equal, so that the fluctuation of the input voltage has little effect on the output voltage. Therefore, the dynamic response of the system is improved and the dynamic fluctuation amplitude of the output voltage is reduced.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a Boost circuit based on input voltage feedforward control and a control method thereof. Background technique [0002] The boost circuit generally includes a power stage circuit and a control circuit. The control circuit controls the switching state of the main power switch tube of the power stage circuit to adjust the output voltage, and the output voltage is higher than the input voltage. The control circuit needs to feedback control the switch state of the main power switch tube according to the change of the output voltage. [0003] like figure 1 As shown, it is the output voltage control mode of the prior art, that is, the output voltage is sampled, and the error amplification process is performed between it and the reference signal to obtain the error amplification signal V E , the error amplifies the signal V E Compared with the triangular wave signal, the dut...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02M3/155
Inventor 张鑫
Owner NANJING SILERGY SEMICON TECH CO LTD