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Power supply system having self-learning function

A power supply system and self-learning technology, applied in the direction of output power conversion devices, electrical components, emergency protection circuit devices, etc., can solve the problems of high peak current, cumbersome operation of recording and adjustment, etc., and achieve high reliability and simple operation Effect

Active Publication Date: 2018-09-21
AMOLOGIC (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, traditional switching regulators tend to generate high peak currents during operation, for example, during start-up, and different switching regulators produce different peak currents. For different switching regulators The operation of recording and adjusting the peak current is cumbersome

Method used

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  • Power supply system having self-learning function

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] In a preferred embodiment, as figure 1 As shown, a power supply system with self-learning function is proposed, which can include:

[0027] A pulse width modulation driver 10, including a control input terminal, a first pulse output terminal and a second pulse output terminal;

[0028] The pulse width modulation driver 10 receives a control signal Vcomp through the control input terminal, and outputs the first pulse signal PWM1 from the first pulse output terminal according to the control signal Vcomp, and outputs the second pulse signal PWM2 from the second pulse output terminal;

[0029] A PMOS transistor PM1, the gate of the PMOS transistor PM1 is connected to the first pulse output terminal;

[0030] An NMOS transistor NM1, the gate of the NMOS transistor NM1 is connected to the second pulse output terminal;

[0031] The drain of the NMOS ...

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Abstract

The invention relates to the technical field of power electronics, and particularly relates to a power supply system having a self-learning function. The power supply system comprises a pulse width modulation driver; a PMOS transistor; an NMOS transistor; a fuse which comprises multiple parallel connected fuse wires and a soft start unit, wherein each fuse wire has different upper limits of current from low to high and each fuse wire is connected with an output node, and the soft start unit is connected with one end, which is not connected with the output node, of each fuse wire so as to generate and output a reference signal according to the total current through all the fuse wires; a first comparator; and a current limiting protection circuit. The peak current of the electric signals outputted by different power supply systems can be automatically recorded and regulated so that operation is easy and reliability is high.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a power supply system with a self-learning function. Background technique [0002] With the rapid development of microelectronics technology, step-down switching regulators are widely used in step-down situations due to their simple circuit structure, convenient adjustment, and high reliability; according to different control mechanisms, step-down switching regulators The advantages of the working method and the improvement of the conversion efficiency of the converter are more and more applied to switching power supplies. [0003] However, traditional switching regulators tend to generate high peak currents during operation, for example, during start-up, and different switching regulators produce different peak currents. For different switching regulators The operation of recording and adjusting the peak current is cumbersome. Contents of the invention [0004] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/08H02M1/088H02H7/12
CPCH02H7/1203H02M1/08H02M1/088H02M1/0003
Inventor 樊茂
Owner AMOLOGIC (SHANGHAI) CO LTD
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