DC-DC power supply device, voltage regulation method and network equipment

A DC-DC and power supply device technology, applied in the electronic field, can solve the problems of unfavorable test and test failure recurrence, lack of adjustment of the output voltage of DC-DC switching power supply, and poor use conditions, etc., to achieve convenient product testing and inspection work, The effect of improving testability and improving stability
CN101795071AActive Publication Date: 2010-08-04RUIJIE NETWORKS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RUIJIE NETWORKS CO LTD
Publication Date
2010-08-04

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Abstract

The invention relates to the technical field of electronics and discloses a DC-DC power supply device, a voltage regulation method and network equipment in order to improve the testability of circuits. In the invention, at least one regulation module and a control module are arranged in the DC-DC power supply device, wherein the control module controls the conduction states of upper and lower switch tubes in a resistor array in the regulation module so as to regulate the offset of an output voltage to control the size of the output voltage. Thus, the synchronous regulation of one or more DC-DC switch power supply modules can be realized without manual box opening and power-interrupting operation and the precision regulation of the output voltages of the DC-DCs switch power supply modules is realized without a large amount of circuit hardware regulation and change, so that the testability of the circuit and operation smoothness of the whole circuit test process are improved effectivelyand the product test and examination work is very convenient. The invention also discloses the power supply method and the network equipment.
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Description

technical field

[0001] The present invention relates to the field of electronic technology, in particular to a DC-DC power supply device, a voltage adjustment method and network equipment Background technique

[0002] Usually, to make an integrated chip work stably and reliably, its power supply voltage needs to be controlled within a set range, that is, the power supply voltage value is required to be between a minimum value and a maximum value. If the power supply voltage of the chip is less than the minimum value or greater than the maximum value, it will cause the chip to work unstable or even be damaged.

[0003] In the design stage of the power supply system of the product, the power supply voltage circuit of each chip is formed after theoretical calculation with reference to the design scheme and the power supply requirements of each chip. However, due to the differences in device parameters in the circuit, there may be differences between the theoretical design value...

Claims

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