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Regulator control circuits, switching regulators, systems, and methods for operating switching regulators

A technology for controlling circuits and regulators, applied to output power conversion devices, conversion equipment without intermediate conversion to AC, electrical components, etc., can solve problems such as difficult manufacturing parameters, and achieve the effect of improving power efficiency

Active Publication Date: 2010-10-13
TAIWAN SEMICON MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In configurations connecting precision capacitors with scaled-down FET devices on the same chip, it is increasingly difficult to maintain fabrication parameters such that accurate outputs from these devices are still valid

Method used

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  • Regulator control circuits, switching regulators, systems, and methods for operating switching regulators
  • Regulator control circuits, switching regulators, systems, and methods for operating switching regulators
  • Regulator control circuits, switching regulators, systems, and methods for operating switching regulators

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Embodiment Construction

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, a preferred embodiment will be described in detail below together with the accompanying drawings.

[0043] A switching regulator acts as a direct current-direct current (DC-DC) converter. A conventional switching regulator includes a driving circuit stage coupled to a supply voltage. The existing regulator can output a regulated voltage. Generally speaking, the driving circuit stage includes a high-voltage side driver (such as a P-type metal oxide semiconductor (PMOS) transistor) and a low-side driver (such as an N-type metal oxide semiconductor (N-type metal oxide semiconductor, NMOS) transistor). The PMOS transistors and the NMOS transistors are turned on alternately to respectively couple the supply voltage to the output of the driver circuit stage and to release the coupled voltage at the output of the driver circuit stage. It can be found that the ...

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Abstract

A regulator control circuit includes a high side driver that is configured to receive a supply voltage. A capacitor is configured to store charges. A first transistor is coupled between the capacitor at a first node and a gate of a high side driver at a second node. The first node is capable of being boosted to a voltage to operate the first transistor at a saturation mode for a charge sharing between the first node and the second node so as to substantially turn on the high side driver. The invention can improve the power efficiency for the switching regulators.

Description

technical field [0001] The present invention relates to a semiconductor circuit, and more particularly to a regulator control circuit, a switching regulator, a system, and a method of operating a switching regulator. Background technique [0002] In recent years, the density of semiconductor chips in integrated circuit technology has continued to increase significantly. For example, the minimum feature size of lithography, such as the size of a MOSFET, has been reduced below 1 micron. In configurations connecting precision capacitors with scaled-down FET devices on the same die, it is increasingly difficult to maintain fabrication parameters such that accurate outputs from these devices are still valid. [0003] Integrated circuits have been used in various electronic devices, such as mobile phones, Personal Digital Assistants (PDAs), computers, and / or other electronic devices. Generally, the external power received by an electronic device is different from the power used ...

Claims

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Application Information

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IPC IPC(8): H02M3/07H02M1/08
CPCH02M1/08H02M3/07
Inventor 石硕艾伦·罗许艾瑞克·索南
Owner TAIWAN SEMICON MFG CO LTD
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