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High-voltage bandgap reference voltage source and its generation method, high-voltage fixed power supply and its application

A technology of reference voltage source and high-voltage power supply, which is applied in the direction of adjusting electrical variables, instruments, and conversion equipment without intermediate conversion to AC. It can solve the problems of power consumption and large size, achieve low power consumption design, and reduce overall power consumption. , the effect of low noise

Active Publication Date: 2022-05-17
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0007] (3) Due to the use of commercial chips, the power consumption and size are large

Method used

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  • High-voltage bandgap reference voltage source and its generation method, high-voltage fixed power supply and its application
  • High-voltage bandgap reference voltage source and its generation method, high-voltage fixed power supply and its application
  • High-voltage bandgap reference voltage source and its generation method, high-voltage fixed power supply and its application

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Embodiment Construction

[0032] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

[0033] figure 2 A schematic structural diagram of a high-voltage bandgap reference voltage source according to an embodiment of the present disclosure is schematically shown.

[0034] Such as figure 2 As shown, the high voltage bandgap reference consi...

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Abstract

The present disclosure provides a high-voltage bandgap reference voltage source, including: a bandgap reference core module, including a zero-temperature-coefficient current generation module, which is used to generate a voltage proportional to temperature when the high-voltage bandgap reference voltage source works stably. Proportional current and a current inversely proportional to temperature, the two currents are superimposed in a certain proportional relationship, so that the bandgap reference core module outputs a bandgap reference current with zero temperature coefficient; R3 converts the zero temperature coefficient bandgap reference current to a high voltage bandgap reference voltage output. The disclosure also provides a method for generating a high-voltage bandgap reference voltage source, a high-voltage fixed power supply and applications thereof.

Description

technical field [0001] The disclosure relates to the technical field of high-voltage bandgap reference voltage sources, and in particular to a high-voltage bandgap reference voltage source and a generation method thereof, a high-voltage fixed power supply and applications thereof. Background technique [0002] Compared with traditional sensors, MEMS (Micro-Electro-Mechanical System) sensors have many advantages such as low cost, small size, light weight, low power consumption, etc., and have been used in consumer electronics, medical health, automotive electronics, industrial control, etc. The field realizes more and more applications. Compared with other sensitive mechanisms such as piezoresistive, piezoelectric, and electromagnetic, capacitive MEMS sensors have the advantages of high sensitivity, stable DC characteristics, small temperature drift, low power consumption, and small temperature coefficient, and are widely used in pressure, acceleration, etc. , angular veloci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/567H02M3/07
CPCG05F1/567H02M3/07
Inventor 陈华孟真张兴成阎跃鹏
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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