Over-current regulating system
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsHSIANG-PIN TSENG, MIN-WEI LEE
Life of this patent
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Abstract
An over-current regulating system includes a protecting resistor, an amplifying circuit, and a comparing circuit. The protecting resistor is configured to be electrically coupled to a power supply unit. The amplifying circuit is electrically coupled to the protecting resistor and the comparing circuit and configured to amplify a voltage of the protecting resistor, and output the amplified voltage value to the comparing circuit. The comparing circuit is configured to determine whether the amplified voltage is greater than a first predetermined value when the comparing circuit is coupled to the power supply unit. When the voltage is greater than the first predetermined value, the comparing circuit outputs a controlling signal to reduce a work frequency of a load.
Claims19
An over-current regulating system comprising:
- a protecting resistor configured to be electrically coupled to a power supply unit;
- an amplifying circuit coupled to the protecting resistor and configured to amplify a voltage of the protecting resistor and output an amplified voltage value;
- and
- a comparing circuit coupled to the amplifying circuit;
- wherein the comparing circuit is configured to determine whether the amplified voltage value is greater than a first predetermined value when the comparing circuit is coupled to the power supply unit, and when the amplified voltage value is greater than the first predetermined value, the comparing circuit outputs a controlling signal, which is configured to reduce a work frequency of a load.
An over-current regulating system, comprising:
- a protecting resistor configured to be electrically coupled to a power supply unit;
- an amplifying circuit coupled to the protecting resistor and configured to amplify a voltage of the protecting resistor and output an amplified voltage value;
- a filtering circuit electrically coupled to the amplifying circuit and configured to filter the amplified voltage value of the protecting resistor;
- and
- a comparing circuit coupled to the filtering circuit;
- wherein the comparing circuit is configured to determine whether the amplified voltage value is greater than a first predetermined value when the comparing circuit is coupled to the power supply unit, and when the amplified voltage value is greater than the first predetermined value, the comparing circuit outputs a controlling signal to reduce a work frequency of a load.
Dependencies are inferred from the claim text.