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Voltage regulation circuit and method thereof

A voltage regulation circuit, a technology for outputting voltage, applied in electrical components, regulating electrical variables, control/regulating systems, etc.

Active Publication Date: 2021-01-12
CHENGDU MONOLITHIC POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the rapid development of electronic equipment, new requirements and challenges are constantly emerging for AVP control

Method used

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  • Voltage regulation circuit and method thereof
  • Voltage regulation circuit and method thereof
  • Voltage regulation circuit and method thereof

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Embodiment Construction

[0015] Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described here are only for illustration, not for limiting the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In other instances, well-known circuits, materials or methods have not been described in detail in order to avoid obscuring the present invention.

[0016] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present invention. In at least one embodiment. Thus, appearances of the phrases "in on...

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Abstract

The invention discloses a voltage regulation circuit and a method thereof. The voltage regulation circuit comprises a switching circuit and a control circuit. The switching circuit receives an input voltage and provides an output voltage and an output current. The control circuit provides a control signal to control the switching circuit such that the output voltage is maintained at the clamp voltage when the output current is less than the turn current, and the output voltage decreases as the output current increases when the output current is greater than the turn current. The control circuit generates an injection current, participates in adjustment of the output voltage, and enables the output voltage to be kept at a clamping voltage. Compared with traditional self-adaptive voltage positioning control, the output voltage can be independent of the output current, and the requirements of novel application occasions are met.

Description

technical field [0001] The present invention relates to an electronic circuit, and more particularly, to a voltage regulation circuit with adaptive voltage positioning and a control method thereof. Background technique [0002] Adaptive Voltage Position (AVP) control is widely used in voltage regulators (Voltage Regulator, VR) in electronic equipment such as laptops, desktop computers, and servers to reduce voltage spikes during transients and achieve better dynamic voltage regulation. The basic idea of ​​existing AVP control is as follows: figure 1 shown. As the output current Io of the voltage adjustment circuit increases, the output voltage Vo of the voltage adjustment circuit decreases, and the relationship between the two is linear, and the range of the output voltage Vo is between Vmax and Vmin. Vmax is the maximum output voltage level allowed by the voltage regulation circuit, and Vmin is the minimum output voltage level allowed by the voltage regulation circuit. ...

Claims

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Application Information

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IPC IPC(8): G05F1/56
CPCG05F1/561H02M1/0025H02M3/1566H02M1/0016H02M3/156
Inventor 葛挺黄道成
Owner CHENGDU MONOLITHIC POWER SYST