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Voltage-stabilizing power source for power supply

A voltage-stabilized power supply and voltage-stabilized reference technology, applied in the protection of under-voltage or no-voltage response, protection of over-voltage response, electrical components, etc., can solve the problem of ineffective protection of electrical equipment and damage to electrical equipment , Circuit protection equipment is not perfect, etc.

Inactive Publication Date: 2019-06-18
XIAN FUBANG TECH INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overvoltage and undervoltage are easy to damage electrical equipment
However, the circuit protection equipment is not perfect at present, it cannot effectively protect the electrical equipment, and it cannot reliably cut off the power supply when overvoltage and undervoltage occur.

Method used

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  • Voltage-stabilizing power source for power supply

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Embodiment Construction

[0014] The present invention is described in further detail below in conjunction with accompanying drawing:

[0015] see figure 1 , the stabilized power supply for power supply of the present invention is composed of a rectification unit PART1, a monitoring unit PART2, a voltage stabilization reference unit PART3, a comparison unit PART4, a pre-regulator unit PART5, an AC / DC conversion unit PART6, an inverter unit PART7 and a modulation unit PART8 ; The rectification unit PART1, monitoring unit PART2, voltage stabilizing reference unit PART3, comparison unit PART4 and pre-regulation unit PART5 are connected in sequence, and the rectification unit PART1 converts the alternating current into a direct current proportional to the supply voltage to supply power to each circuit; the pre-regulation unit PART5 The output terminal of the AC-DC conversion unit PART6 is connected to the output terminal of the pre-regulator unit PART5, and the output terminal of the AC-DC conversion unit ...

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PUM

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Abstract

The invention relates to a voltage-stabilizing power source for power supply. The voltage-stabilizing power source consists of a rectification unit, a monitoring unit, a voltage stabilization reference unit, a comparison unit, a pre-voltage-regulation unit, an alternating-current and direct-current conversion unit, an inversion unit and a modulation unit. The rectification unit converts an alternating current into a direct current which is in direct proportion to a power supply voltage so as to supply power to each circuit; the output end of the pre-voltage-regulation unit outputs an alternating current power source L2; the input end of the alternating current and direct current conversion unit is connected with the output end of the pre-voltage-regulation unit, and the output end of the alternating current and direct current conversion unit is connected to the inversion unit and the modulation unit; the inversion unit and the modulation unit are connected with each other; and the output ends of the inversion unit and the modulation unit are connected in parallel to serve as the output end of the whole voltage-stabilizing power source for power supply. The sinusoidal alternating-current electric energy with stable frequency and stable voltage can be provided by the voltage-stabilizing power source during normal operation; and when the wire inlet voltage is higher than a set voltage high limit or lower than a set voltage bottom limit, the alternating current power source can be cut off, and the output is stopped.

Description

technical field [0001] The invention belongs to the technical field of electrical protection, in particular to a stabilized power supply for power supply. Background technique [0002] In the prior art, many industrial and civil power supply environments are harsh. Overvoltage and undervoltage are easy to damage electrical equipment. However, the circuit protection equipment is still not perfect enough to effectively protect electrical equipment, and cannot reliably cut off the power supply when overvoltage or undervoltage occurs. [0003] The invention relates to a stabilized power supply for power supply. The device can reliably cut off the power supply to protect subsequent electrical equipment when overvoltage and undervoltage occur. Contents of the invention [0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a stabilized power supply for power supply, which can reliably cut off the power supply...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/48H02M3/156H02M5/458H02H3/20H02H3/24
Inventor 杨德林
Owner XIAN FUBANG TECH INDAL