OVER CURRENT PROTECTION APPARATUS
First Claim
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1. An over-current protection apparatus comprising:
- a current sensor configured to transform input current into a voltage signal, and output the voltage signal;
an over-current sensing unit driven according to the voltage signal output from the current sensor; and
an over-current determination unit configured to generate a switching unit driving signal, the logic level of which is determined according to a duration of an output signal of the over-current sensing unit.
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Abstract
Provided is an over-current protection apparatus including a current sensor configured to transform input current into a voltage signal, and output the voltage signal; an over-current sensing unit driven according to the voltage signal output from the current sensor; and an over-current determination unit configured to generate a switching unit driving signal, the logic level of which is determined according to a duration of an output signal of the over-current sensing unit.
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Citations
22 Claims
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1. An over-current protection apparatus comprising:
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a current sensor configured to transform input current into a voltage signal, and output the voltage signal; an over-current sensing unit driven according to the voltage signal output from the current sensor; and an over-current determination unit configured to generate a switching unit driving signal, the logic level of which is determined according to a duration of an output signal of the over-current sensing unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An over-current protection apparatus comprising:
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a current sensor configured to transform input current into a voltage signal, and output the voltage signal; and a plurality of over-current control circuits connected in parallel between a switching unit, which is connected to a current supply line of a target device to be protected, and the current sensor. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An over-current protection apparatus comprising:
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a current sensor configured to transform input current into a voltage signal, and output the voltage signal; a first over-current control circuit configured to control a first switching unit by detecting whether over-current is generated in a forward current path of the current sensor; and a second over-current control circuit configured to control a second switching unit by detecting whether over-current is generated in a backward current path of the current sensor. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification