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Commercial power pulse width modulation amplification type voltage stabilizing protection system

A pulse width modulation, voltage stabilization protection technology, applied in the protection of overvoltage response, pulse duration/width modulation, protection response to undervoltage or no voltage, etc., can solve voltage instability, instrumentation, etc. It is prone to problems such as abnormality and damage to instruments and meters, so as to achieve the effect of ensuring stability, improving pressure resistance and ensuring stability

Inactive Publication Date: 2016-11-09
CHENGDU HANXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The mains power supply often has voltage instability, and the existing electrical equipment, especially precision instruments, has relatively high requirements for the stability of the working voltage. If the working voltage is undervoltage or overvoltage, the instrumentation is prone to abnormalities , serious and even damage the instrumentation

Method used

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  • Commercial power pulse width modulation amplification type voltage stabilizing protection system
  • Commercial power pulse width modulation amplification type voltage stabilizing protection system
  • Commercial power pulse width modulation amplification type voltage stabilizing protection system

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Embodiment

[0019] Such as Figure 1~3 As shown, the mains pulse width modulation amplified voltage stabilizing protection system of the present invention is mainly composed of a transformer T, a diode rectifier U, a triode VT3, a resistor R7, a capacitor C1, a capacitor C3, a diode D2, a diode D3, a power trigger circuit, It is composed of pulse width modulation circuit, amplifier circuit and over-voltage and under-voltage protection circuit.

[0020] When connected, the anode of the capacitor C1 is connected to the positive output terminal of the diode rectifier U, and its cathode is connected to the negative output terminal of the diode rectifier U. The power trigger circuit is respectively connected with the anode and cathode of the capacitor C1; the P pole of the diode D2 is connected with the emitter of the triode VT3, and its N pole is connected with the power trigger circuit after being amplified. The over-voltage and under-voltage protection circuit is respectively connected to ...

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Abstract

The invention discloses a pulse width modulation amplified voltage stabilizing protection system for commercial power, which is characterized in that it mainly consists of a transformer T, a diode rectifier U, a triode VT3, a resistor R7, a capacitor C1, a capacitor C3, a diode D2, a diode D3, It is composed of power trigger circuit, pulse width modulation circuit, amplifier circuit and over-voltage and under-voltage protection circuit. The invention can protect the electrical load from undervoltage and overvoltage. When the mains power supply voltage is unstable and the undervoltage or overvoltage occurs, the relay KA is released to cut off the load power supply, thereby protecting the electrical load from undervoltage or overvoltage. It will not be damaged under the condition of power supply, and is suitable for popularization and application.

Description

technical field [0001] The invention relates to a protection system, in particular to a pulse width modulation amplified voltage stabilization protection system for commercial power. Background technique [0002] The mains power supply often has voltage instability, and the existing electrical equipment, especially precision instruments, has relatively high requirements for the stability of the working voltage. If the working voltage is undervoltage or overvoltage, the instrumentation is prone to abnormalities , Seriously, it may even damage the instrumentation. Contents of the invention [0003] The purpose of the present invention is to provide a pulse width modulation amplified voltage stabilizing protection system for mains power, in order to cut off the power supply when the mains voltage is unstable, so as to protect electrical equipment in the case of under-voltage or over-voltage power supply not be damaged. [0004] The present invention realizes through followi...

Claims

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Application Information

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IPC IPC(8): H02H3/20H02H3/24H02M7/217H02M3/156H02M1/36H03K7/08
CPCH02H3/207H02M1/36H02M3/156H02M7/217H03K7/08
Inventor 不公告发明人
Owner CHENGDU HANXING TECH CO LTD