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DC/DC circuit and boosting method and system of DC/DC circuit

A technology of circuit and voltage input, which is applied in the direction of control/regulation system, electrical components, and regulation of electrical variables, etc. It can solve problems such as difficult high voltage output, and achieve the same effect of low input voltage, high current output, and duty cycle

Pending Publication Date: 2022-04-01
武汉普赛斯仪表有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, it is necessary to provide a DC / DC circuit, a DC / DC circuit boosting method and system to overcome the problem that the existing non-isolated DC / DC circuit is difficult to multiple voltage to achieve high voltage output

Method used

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  • DC/DC circuit and boosting method and system of DC/DC circuit
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  • DC/DC circuit and boosting method and system of DC/DC circuit

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Embodiment Construction

[0029] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0030] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the description of the present invention, reference to "an embodiment" means tha...

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Abstract

The invention relates to a DC / DC circuit and a voltage boosting method and system of the DC / DC circuit, the DC / DC circuit comprises a voltage input circuit, a voltage boosting adjusting circuit and a voltage output circuit which are electrically connected in sequence, the voltage boosting adjusting circuit comprises an adjusting part and at least one inductor, and the connection mode between the at least one inductor is adjusted by changing the conduction state of the adjusting part. Compared with a traditional boost circuit, the boost circuit has the advantages that the input voltage is the same, the duty ratio of a switching tube is the same, the output voltage is higher, the boost circuit is suitable for being used in places needing higher voltage, the number of turns of a transformer or the multiple of smaller voltage multiplying is reduced, and therefore low input voltage, high output voltage and higher current output are achieved.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a DC / DC circuit, a DC / DC circuit boosting method and system. Background technique [0002] With the rapid development of power semiconductor technology, the withstand voltage level of power devices is getting higher and higher. Before power semiconductors leave the factory, they need to be tested for withstand voltage and aging. Therefore, the demand for aging power supplies is getting higher and higher, such as small size, wide output voltage range, and high voltage level. In the existing high-voltage scheme, the switching power supply outputs a fixed voltage, and the voltage is adjusted to a certain range through a non-isolated DC / DC circuit, and the high-voltage output is realized through an isolation transformer and multiple voltage methods. Since the input and output gain (the ratio of the output voltage to the input voltage) of the non-isolated DC / DC circuit is smal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158
Inventor 王承胡银超黄秋元周鹏
Owner 武汉普赛斯仪表有限公司
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