Switch type regulator and control method thereof

A control method and regulator technology, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve the problems of slow transient response speed, large electromagnetic interference, etc., and achieve small switch ripple voltage and good transient response , the effect of reducing costs

Active Publication Date: 2010-08-04
SILERGY SEMICON TECH (HANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an improved switching regulator regulator to solve the technical problems of slow transient response speed and large electromagnetic interference existing in the existing power regulator
[0005] Another object of the present invention is to provide a control method for a switching regulator to solve the technical problems of slow transient response and large electromagnetic interference existing in existing power regulators

Method used

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  • Switch type regulator and control method thereof
  • Switch type regulator and control method thereof
  • Switch type regulator and control method thereof

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Embodiment Construction

[0021] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Although the present invention is described in connection with the following preferred embodiments, the present invention is not limited to these embodiments. On the contrary, the invention covers any alternatives, modifications, equivalent methods and schemes within the spirit and scope of the invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order to avoid obscuring the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0022] Some portions of the fol...

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PUM

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Abstract

The present invention relates to a circuit layout of a switch type regulator and control method thereof. The switch type regulator according to one embodiment of the invention includes: (1) a filter network connected to the output terminal, wherein the output voltage of the output terminal is generated by an input source; (2) an active switch connecting the input source to a wave filter circuit, wherein the active switch is periodically connected and disconnected, and the conducting duty cycle of the switch period is modulated by a PWM control signal; (3) a comparator, which receives output feedback signals, a delay signal and a reference delay, and provides the PWM control signal; (4) a delay programming circuit for generating the delay signal and a ramp control signal, wherein the delay signal is set up based on the status of the input source and the output voltage, to obtain an operating status with fundamentally constant frequency.

Description

technical field [0001] The present invention relates to the field of semiconductor devices, and more specifically, the embodiments according to the present invention relate to a power regulator and a control method thereof. Background technique [0002] Voltage regulators, such as DC-DC voltage converters, are used to provide stable voltage sources for various types of electronic equipment. High efficiency DC-DC converters are especially required for battery management of some low-power devices (such as laptop computers, portable mobile phones, etc.). The switching voltage regulator converts the input voltage into a high-frequency voltage signal, and then filters the high-frequency input voltage signal to generate a DC output voltage. Switching regulators generally include switches, an output filter, and control means, wherein the switch is used to alternately connect and disconnect an input DC voltage source (such as a battery) to a load (such as an integrated circuit); th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156
CPCH02M3/1563H02M3/156H02M2001/0025H02M1/0025
Inventor 陈伟迈克尔·格林
Owner SILERGY SEMICON TECH (HANGZHOU) CO LTD
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