Surge voltage protection apparatus

Patent metadata

Field	Value
Publication number	US-2017201088-A1
Application number	US-201614994629-A
Country	US
Kind code	A1
Filing date	Jan 13, 2016
Priority date	Jan 13, 2016
Publication date	Jul 13, 2017
Grant date	—

Abstract

A surge voltage protection apparatus includes a surge voltage absorbing component, a ground component, an electrical status sensing circuit and a control unit. The surge voltage absorbing component receives a surge voltage, so that the electrical status sensing circuit senses an electrical status between the surge voltage absorbing component and the ground component to obtain an electrical data. The electrical status sensing circuit sends the electrical data to the control unit. After the control unit receives the electrical data, the control unit determines the electrical data. When the electrical data is greater than an electrical data predetermined value, the control unit informs a power supply apparatus that the electrical data is greater than the electrical data predetermined value, so that the power supply apparatus is turned off to protect the power supply apparatus.

First claim

What is claimed is:

1 . A surge voltage protection apparatus comprising:
a surge voltage absorbing component electrically connected to a voltage input side of a power supply apparatus; a ground component electrically connected to the surge voltage absorbing component; an electrical status sensing circuit electrically connected to the surge voltage absorbing component and the ground component; and a control unit electrically connected to the electrical status sensing circuit and the power supply apparatus, wherein the surge voltage absorbing component receives a surge voltage, so that the electrical status sensing circuit senses an electrical status between the surge voltage absorbing component and the ground component to obtain an electrical data; the electrical status sensing circuit sends the electrical data to the control unit; after the control unit receives the electrical data, the control unit determines the electrical data; when the electrical data is greater than an electrical data predetermined value, the control unit informs the power supply apparatus that the electrical data is greater than the electrical data predetermined value, so that the power supply apparatus is turned off to protect the power supply apparatus.

2 . The surge voltage protection apparatus in claim 1 further comprising:
an isolation unit electrically connected to the control unit.

3 . The surge voltage protection apparatus in claim 2 further comprising:
a feedback circuit electrically connected to the isolation unit.

4 . The surge voltage protection apparatus in claim 3 further comprising:
an output voltage detection circuit electrically connected to the feedback circuit and a voltage output side of the power supply apparatus,
wherein the output voltage detection circuit detects an output voltage of the voltage output side of the power supply apparatus to obtain an output voltage data; after the output voltage detection circuit obtains the output voltage data, the output voltage detection circuit sends the output voltage data through the feedback circuit and the isolation unit to the control unit; after the control unit receives the output voltage data, the control unit determines the output voltage data; when the output voltage data is in a standard output voltage range, the control unit determines that the power supply apparatus is in a normal working status; when the output voltage data is not in the standard output voltage range, the control unit determines that the power supply apparatus is in an abnormal status.

5 . The surge voltage protection apparatus in claim 4 , wherein when the electrical data is not greater than the electrical data predetermined value and the control unit determines that the power supply apparatus is in the normal working status, the control unit informs a surge voltage tester that the electrical data is not greater than the electrical data predetermined value and the control unit determines that the power supply apparatus is in the normal working status, so that the surge voltage tester generates the surge voltage at a higher intensity.

6 . The surge voltage protection apparatus in claim 4 , wherein when the electrical data is not greater than the electrical data predetermined value but the control unit determines that the power supply apparatus is in the abnormal status, the control unit informs a surge voltage tester that the power supply apparatus is in the abnormal status, so that the surge voltage tester stops generating the surge voltage.

7 . The surge voltage protection apparatus in claim 4 , wherein when the electrical data is greater than the electrical data predetermined value, the control unit informs a surge voltage tester that the electrical data is greater than the electrical data predetermined value, so that the surge voltage tester stops generating the surge voltage.

8 . The surge voltage protection apparatus in claim 4 further comprising:
a data transmission interface electrically connected to the control unit and a data analysis apparatus,
wherein the control unit sends the electrical data and the output voltage data through the data transmission interface to the data analysis apparatus.

9 . The surge voltage protection apparatus in claim 1 , wherein the surge voltage absorbing component is a varistor; the ground component is a resistor, a capacitor or an inductor; the electrical status sensing circuit is a comparator circuit, a current detection circuit, a voltage detection circuit or a power detection circuit; the control unit is a microcontroller or a microprocessor; the electrical status is a current status, a voltage status or a power status.

10 . The surge voltage protection apparatus in claim 8 , wherein the isolation unit is a photo coupler; the data transmission interface is a universal serial bus or a general purpose interface bus.

Assignees

• Chicony Power Tech Co Ltd

Inventors

• Huang Wen-Nan
• Chen Ching-Guo
• Lee Shiu-Hui

Classifications

• H02H3/044

  Checking correct functioning of protective arrangements, e.g. by simulating a fault (for differential current circuit breakers H02H3/335) · CPC title

• H02H3/025

  Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection · CPC title

• H02H3/20 Primary

  responsive to excess voltage · CPC title

• G05B15/02

  electric · CPC title