Reference voltage source with lower power consumption and high stability and power supply device

A reference voltage source and high stability technology, which is applied in the direction of output power conversion devices, electrical components, and adjustment of electrical variables, etc., can solve the problems of poor stability of reference voltage source and high power consumption, and achieve poor stability and low power consumption , low power consumption and manufacturing cost effects

Inactive Publication Date: 2018-07-06
毛述春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor stability and high power consumption of the reference voltage source in the prior art, and provide a reference voltage source and power supply device with higher stability and lower power consumption

Method used

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  • Reference voltage source with lower power consumption and high stability and power supply device
  • Reference voltage source with lower power consumption and high stability and power supply device
  • Reference voltage source with lower power consumption and high stability and power supply device

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Embodiment Construction

[0010] The present invention provides a reference voltage source and power supply device with low power consumption and high stability. In order to make the purpose, technical solution and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0011] As shown in Figure 1, a reference voltage source with low power consumption and high stability includes a startup circuit and a reference voltage generation circuit; the startup circuit includes a PMOS transistor M6, a PMOS transistor M7, an NMOS transistor M5, and an NMOS transistor M4; The sources of the PMOS transistors M6 and M7 are connected and connected to the input voltage Vdd, the gates of the PMOS transistors M6 and M7 are connected and connected t...

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Abstract

The invention relates to the technical field of power supplies in analog circuits, in particular to a reference voltage source with lower power consumption and high stability and a power supply devicecomprising the same. The reference voltage source comprises a startup circuit and a reference voltage generation circuit. The reference voltage source improved based on conventional reference voltagegeneration circuits has the low power consumption and the high stability.

Description

technical field [0001] The invention relates to the technical field of power supplies in analog circuits, in particular to a reference voltage source with low power consumption and high stability and a power supply device. Background technique [0002] The reference voltage generation circuit is the basic module unit in analog circuit design, mixed signal circuit design and digital design. Its function is to provide a reference voltage for the system that does not change with temperature and supply voltage, high precision, low power consumption, and low temperature coefficient. The reference voltage generating circuit is very important for the whole circuit. A traditional bandgap reference source can obtain a reference voltage with zero temperature coefficient by linearly superimposing two voltages with positive and negative temperature coefficients. The difference between the base-emitter voltages of two bipolar transistors is proportional to the absolute temperature. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/56H02M3/00
CPCG05F1/56H02M3/00H02M1/0006
Inventor 毛述春
Owner 毛述春
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