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Circuit for generating boosted voltage and operation method of the same

A voltage generating circuit and voltage technology, applied in the direction of electrical components, adjusting electrical variables, output power conversion devices, etc., can solve problems such as optimization

Active Publication Date: 2011-09-14
MAGNACHIP SEMICONDUCTOR LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the same boost voltage VOUT is generated, the amount of current consumed by the boost voltage generation circuit 100 may vary greatly based on how the input voltage VCIN and the boost rate BT[a:0] are set.
[0010] However, the conventional power supply does not optimize the input voltage VCIN and the boost rate BT[a:0] input to the boost voltage generating circuit 100 according to the target level of the boost voltage VOUT.

Method used

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  • Circuit for generating boosted voltage and operation method of the same
  • Circuit for generating boosted voltage and operation method of the same
  • Circuit for generating boosted voltage and operation method of the same

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Embodiment Construction

[0081] The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, devices and / or systems described herein. Accordingly, various changes, modifications, and equivalents of the systems, devices, and / or methods described herein will be suggested to those skilled in the art. The progression of process steps and / or operations described is an example; however, the order of steps and / or operations is not limited to the order set forth herein, and steps and / or operations are not necessarily limited to occurring in a specific order unless necessary. And / or the order of operations may be changed as known in the art. Also, descriptions of well-known functions and constructions may be omitted for increased clarity and conciseness.

[0082] figure 2 It is a block diagram illustrating a boost voltage generating circuit according to an embodiment.

[0083] see figure 2 , The boost voltage generating circuit includes a boos...

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Abstract

A boosted voltage generation circuit may include: a boosting circuit configured to boost an input voltage based on a boosting rate and output a boosted voltage, a boosting rate setting unit configured to receive a feedback on a level of the input voltage and set a boosting rate, and an input voltage level setting unit configured to set the level of the input voltage in response to a target level of the boosted voltage and the boosting rate.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2009-0126071 filed on December 17, 2009 and Korean Patent Application No. 10-2010-0035631 filed on April 19, 2010, each of which The entire disclosure is hereby incorporated by reference for all purposes. technical field [0003] The present disclosure relates to a circuit for generating a boost voltage higher than an input voltage and a method for operating the boost voltage generating circuit. Background technique [0004] Various semiconductor devices utilize voltage supplied from the outside to operate internal circuits. Since voltages of different levels are used in internal constituent components of the semiconductor device, it is difficult to supply all voltages to be used inside the semiconductor device from outside the device. Therefore, semiconductor devices are equipped with internal voltage generating circuits to generate voltages of ...

Claims

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Application Information

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IPC IPC(8): G05F1/56
CPCG05F1/62H02M3/07H02M3/076
Inventor 郑圭荣
Owner MAGNACHIP SEMICONDUCTOR LTD