COMPUTER DEVICE AND POWER ABNORMALITY DETECTION METHOD FOR A COMPUTER DEVICE
First Claim
1. A computer device coupled to a peripheral device, comprising:
- a microprocessor;
a voltage converter circuit, coupled to the microprocessor and configured to convert a first voltage of a system power of the computer device into a second voltage;
a control circuit, coupled to the microprocessor and the voltage converter circuit and configured to control supply of the second voltage; and
a detection circuit, coupled to the microprocessor and a power detection pin and configured to detect whether a power abnormality at the peripheral device has occurred, wherein the power detection pin is coupled to the peripheral device, andwherein when confirming that the system power is being supplied normally, the microprocessor is configured to generate a first enable signal to enable the voltage converter circuit, andwhen confirming that the voltage converter circuit functions normally, the microprocessor is configured to generate a second enable signal to enable the detection circuit, and the detection circuit is configured to generate a first detection signal based on a corresponding detection result, andwherein the microprocessor is further configured to determine whether to supply the second voltage to the peripheral device according to the first detection signal, when the first detection signal indicates that a power abnormality has not occurred at the peripheral device, the microprocessor generates a third enable signal to enable the control circuit, such that the second
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Abstract
A computer device includes a microprocessor, a voltage converter circuit converting a first voltage of a system power into a second voltage, a control circuit controlling supply of the second voltage and a detection circuit detecting whether power abnormality at the peripheral device has occurred. When confirming that the system power is being supplied normally, the microprocessor generates a first enable signal to enable the voltage converter circuit. When confirming that the voltage converter circuit functions normally, the microprocessor generates a second enable signal to enable the detection circuit. The detection circuit generates a first detection signal according to detection result for the microprocessor to determine whether to supply the second voltage to the peripheral device. When the first detection signal indicates that power abnormality has not occurred, the microprocessor generates a third enable signal to enable the control circuit to supply the second voltage to the peripheral device.
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Citations
10 Claims
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1. A computer device coupled to a peripheral device, comprising:
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a microprocessor; a voltage converter circuit, coupled to the microprocessor and configured to convert a first voltage of a system power of the computer device into a second voltage; a control circuit, coupled to the microprocessor and the voltage converter circuit and configured to control supply of the second voltage; and a detection circuit, coupled to the microprocessor and a power detection pin and configured to detect whether a power abnormality at the peripheral device has occurred, wherein the power detection pin is coupled to the peripheral device, and wherein when confirming that the system power is being supplied normally, the microprocessor is configured to generate a first enable signal to enable the voltage converter circuit, and when confirming that the voltage converter circuit functions normally, the microprocessor is configured to generate a second enable signal to enable the detection circuit, and the detection circuit is configured to generate a first detection signal based on a corresponding detection result, and wherein the microprocessor is further configured to determine whether to supply the second voltage to the peripheral device according to the first detection signal, when the first detection signal indicates that a power abnormality has not occurred at the peripheral device, the microprocessor generates a third enable signal to enable the control circuit, such that the second - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A power abnormality detection method, suitable for a computer device which is coupled to a peripheral device, the computer device comprising a voltage converter circuit and a detection circuit, the voltage converter circuit being configured to convert a first voltage into a second voltage, the detection circuit being configured to detect whether a power abnormality at the peripheral device has occurred, the method comprising:
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detecting whether a system power of the computer device is being supplied normally; when confirming that the system power is being supplied normally, waiting for a first predetermined period of time and then generating a first enable signal to enable the voltage converter circuit when the first predetermined period of time expires; detecting whether the voltage converter circuit functions normally; when confirming that the voltage converter circuit functions normally, generating detecting whether a power abnormality at the peripheral device has occurred and generating a first detection signal based on a corresponding detection result; and determining whether to supply the second voltage to the peripheral device according to the first detection signal, wherein when the first detection signal indicates that a power abnormality has not occurred at the peripheral device, supplying the second voltage to the peripheral device. - View Dependent Claims (9, 10)
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Specification