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Power supply circuit and power supply

A technology of power supply circuit and power supply, which is applied in the direction of electrical components, adjustment of electric variables, output power conversion devices, etc., which can solve the problems of shortened service life of power supply and unstable current, and achieve the effect of stable current and guaranteed service life

Active Publication Date: 2014-12-24
深圳市昌豪微电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a power supply circuit to solve the problem in the prior art that the output current of the power supply is unstable and easily causes the service life of the power supply to be shortened

Method used

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  • Power supply circuit and power supply
  • Power supply circuit and power supply
  • Power supply circuit and power supply

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0029] The embodiment of the present invention provides a power supply circuit, please refer to figure 1 , connected to the power supply 100, used to stabilize the output current of the power supply 100, including a detection module 101, a BOOST step-up module 102, a noise elimination module 103, a comparison module 104 and a microprocessor 105;

[0030] The input end of detection module 101 connects power supply 100, the output end of detection module 101 connects the ...

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Abstract

The invention belongs to the field of current stabilization control, and provides a power supply circuit and a power supply. Detection, chopping processing and de-noising and noise-reduction processing are carried out on output currents of the power supply through a detection module, a BOOST module, a de-noising module, a comparison module and a microprocessor. Meanwhile, a de-noised direct-current signal is compared with a preset current value through the comparison module, and the comparison result is sent to the microprocessor, so that output currents are more stable and meanwhile the service life of the power supply is guaranteed.

Description

technical field [0001] The invention belongs to the field of steady current control, and in particular relates to a power supply circuit and a power supply. Background technique [0002] With the discovery and utilization of electricity, various power sources also appear in our study, production, life and work, laying a part of the foundation for people's material and spiritual enjoyment. [0003] However, the output current of the power circuit in the current power supply is generally unstable, sometimes high and sometimes low, or too high for a long time, or too low for a long time, which is likely to cause damage to electrical equipment, and even cause personal safety problems. In order to stabilize the output current of the power supply, manufacturers generally use cheap components, but cheap components are easily damaged, and the current stabilization circuit is generally designed in the power supply. When the current stabilization circuit is damaged, the service life...

Claims

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Application Information

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IPC IPC(8): H02M3/157
Inventor 余贤祥
Owner 深圳市昌豪微电子有限公司