Multiple protection DC voltage adjusting apparatus and method

Abstract

The invention relates to a multiple protection DC voltage adjusting apparatus and method. The apparatus comprises an input rectification module, a boost inductor, an input detection module, a shutdown protection module, a boost module, a step-down module, a freewheeling inductor and an output control module. According to the invention, unstable voltages and currents are adjusted to quite stable power supplies which can be effectively utilized by users; a chip is controlled to automatically detect input and output voltage values, and a circuit working states is determined; and a mechanical and circuit interlocking structure is formed by use of normally-open and normally-closed contacts of relays with an adjusting circuit, current impact is prevented through multiple protection, the operation is stable, and the safety and the reliability are high.

Description

technical field [0001] The patented technology of the present invention relates to the control field of rational utilization of DC power supply, in particular to a multi-protection DC voltage regulating device and method. Background technique [0002] At present, there are many devices that convert other forms of energy into electrical energy for recycling, such as the elevator’s no-load, heavy-load energy feedback, small wind power, and small solar power. Often inverters are used to directly feed the electric energy back to the grid, although some can be recovered Energy, but its large quantity, small unit capacity, difficult phase control, high manufacturing cost, easy damage to electrical components, poor safe operation, and easy to cause interference to the power grid make it unfavorable for popularization and use. [0003] If a simple method can be used to solve the collection and conversion of its feedback energy, the recovered energy can be used more effectively, and ...

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Problems solved by technology

[0002] At present, there are many devices that convert other forms of energy into electrical energy for recycling, such as the elevator’s no-load, heavy-load energy feedback, small wind power, and small solar power. Often inverters are used to directly feed the electric energy back to the grid, although some can be recovered Energy, but its large quantity, small unit capacity, difficult phase control, high manufacturing cost, easy damage to electrical components, poor safe operation, and easy to cause interference to the power grid make it unfavorable for popularization and use

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