Detecting circuit and electronic device using the same

Patent metadata

Field	Value
Publication number	US-2016366748-A1
Application number	US-201514788989-A
Country	US
Kind code	A1
Filing date	Jul 1, 2015
Priority date	Jun 12, 2015
Publication date	Dec 15, 2016
Grant date	—

Abstract

The disclosure provides a detecting circuit including a controller and a light emitting diode (LED). The controller obtains a plurality of sequence signals output by a plurality of sequence signal terminals of the motherboard. The LED is electrically coupled to the controller. When the controller obtains a sequence signal from one of the sequence signal terminals of the motherboard, the controller outputs a first control signal to the LED, and the LED flashes once. An electronic device including the detecting circuit is also provided.

First claim

What is claimed is:

1 . A detecting circuit comprising:
a controller is configured for obtaining a plurality of sequence signals from a motherboard; a light emitting diode (LED) electrically coupled to the controller; wherein when the controller obtains a sequence signal from the motherboard, the controller outputs a first control signal to the LED, and the LED flashes.

2 . The detecting circuit of claim 1 , wherein the controller comprises a plurality of signal input pins, each signal input pin is electrically coupled to a corresponding sequence signal terminal of the motherboard to obtain a corresponding sequence signal from the motherboard.

3 . The detecting circuit of claim 2 , wherein the controller further comprises a signal output pin, the signal output pin is electrically coupled to a cathode of the LED through a resistor, an anode of the LED is electrically coupled to a power supply.

4 . The detecting circuit of claim 3 , wherein when the controller does not obtains a sequence signal from the motherboard, the controller outputs a second control signal to the LED, and the LED is turned off.

5 . The detecting circuit of claim 4 , wherein the controller is a complex programmable logic device (CPLD).

6 . An electronic device comprising:
a motherboard; and a detecting circuit comprising:
a controller is configured for obtaining a plurality of sequence signals from a motherboard;
a light emitting diode (LED) electrically coupled to the controller;
wherein when the controller obtains a sequence signal from the motherboard, the controller outputs a first control signal to the LED, and the LED flashes.

7 . The electronic device of claim 6 , wherein the controller comprises a plurality of signal input pins, each signal input pin is electrically coupled to a corresponding sequence signal terminal of the motherboard to obtain a corresponding sequence signal from the motherboard.

8 . The electronic device of claim 7 , wherein the controller further comprises a signal output pin, the signal output pin is electrically coupled to a cathode of the LED through a resistor, an anode of the LED is electrically coupled to a power supply.

9 . The electronic device of claim 8 , wherein when the controller does not obtains a sequence signal from the motherboard, the controller outputs a second control signal to the LED, and the LED is turned off.

10 . The electronic device of claim 9 , wherein the controller is a complex programmable logic device (CPLD).

Assignees

• Hong Fu Jin Prec Ind (Shenzhen) Co Ltd
• Hon Hai Prec Ind Co Ltd

Inventors

• Gao Yang
• Yang Meng-Liang

Classifications

• H05B33/0845

  Electricity · mapped topic

• H05B37/029 Primary

  Electricity · mapped topic

• G06F11/325 Primary

  by lamps or LED's · CPC title

• G06F1/00 Primary

  Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00 (architectures of general purpose stored program computers G06F15/76) · CPC title