High-voltage wide-range input method of push-pull isolation type power source on basis of SG2525

An input method and isolation technology, which is applied in the direction of converting DC power input to DC power output, electrical components, adjusting electrical variables, etc., can solve the problem of high cost of power supply modules, and achieve the effects of low cost, shortened research and development cycle, and convenient maintenance.

Inactive Publication Date: 2014-12-24
南京冠亚电源设备有限公司
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Problems solved by technology

The power supply module should provide 5V and -5V power supply for the first three functional modules. If a ready-made (th

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  • High-voltage wide-range input method of push-pull isolation type power source on basis of SG2525
  • High-voltage wide-range input method of push-pull isolation type power source on basis of SG2525
  • High-voltage wide-range input method of push-pull isolation type power source on basis of SG2525

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Embodiment Construction

[0023] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as Figure 1 to Figure 4 As shown, the push-pull isolated power supply high-voltage wide-range input method based on SG2525, aiming at the characteristics of high voltage and ultra-wide input range of the DC output voltage of photovoltaic modules, which is generally 200VDC-1000VDC, converts the high voltage of 200VDC-1000VDC into 5V, - 5V low voltage, self-made DC / DC power supply, which can directly take power from the photovoltaic module as the input of self-made DC / DC, this DC / DC power supply has three outputs, and each channel is electrically isolated; including push-pull isolated power supply, 15V voltage Output, ±5V output, magnetic core selection, selection of transformer turns.

[0025] The push-pull isolated power supply is a push-pull isolated power supply composed of PWM chip SG2525; p...

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Abstract

The invention discloses a high-voltage wide-range input method of a push-pull isolation type power source on the basis of SG2525. With respect to the characteristic that a photovoltaic component is high in direct-current output voltage generally ranging from 200VDC to 1000VDC and ultrawide in input range, the high-voltage wide-range input method includes steps of converting high voltage of 200VDC to 1000VDC into low voltage of 5V to -5V, and customizing a DC/DC (direct current) power source. The high-voltage wide-range input method further comprises a push-pull isolation type power source, 15V voltage output, +/-15V voltage output, magnetic core selection and selection of transformer turns. The high-voltage wide-range input method is high in input voltage, wide in range and low in cost, by the aid of over-voltage and over-current protection and mutual isolation of output of transformers, interference resistance is high, load is stable and maintenance is facilitated.

Description

technical field [0001] The invention relates to a technical application in the field of industrial power supplies, in particular to a method for high-voltage wide-range input of a push-pull isolated power supply based on SG2525. Background technique [0002] At present, the supply of traditional energy is becoming increasingly tense, forcing people to turn their attention to renewable energy, hoping that renewable energy can change the existing energy structure and maintain long-term sustainable development. Among them, solar energy has become a global sustainable development strategy with its unique advantages. An important part of. [0003] Photovoltaic power generation refers to the direct conversion of solar radiation energy into electrical energy by using the photovoltaic effect of photovoltaic modules. [0004] The photovoltaic power generation system includes photovoltaic modules, controllers, inverters and other components. In order to reduce the connection lines be...

Claims

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Application Information

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IPC IPC(8): H02M3/337
Inventor 张海波曹慧王兆明孙邦伍
Owner 南京冠亚电源设备有限公司
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