AVERAGE INDUCTOR CURRENT CONTROL USING VARIABLE REFERENCE VOLTAGE
First Claim
1. An average inductor current mode voltage control method for a DC/DC converter comprising the following steps:
- receiving a current signal two times of a designated current and converting the current signal into a voltage signal two times of a designated voltage;
converting a valley inductor current produced by an inductor in the DC/DC converter into a valley voltage; and
subtracting the valley voltage from the voltage signal two times of the designated voltage to generate a reference voltage that controls the switching of a transistor switch in the DC/DC converter.
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Accused Products
Abstract
A variable reference voltage generation unit used in DC/DC converter includes a sample-hold valley inductor current unit electrically connected to a reference voltage generation unit. The sample-hold valley inductor current unit receives the valley inductor current and converts it into the valley voltage. The reference voltage generation unit receives and converts a current signal two times of a designated current into a voltage signal two times of a designated voltage. The voltage signal two times of reference voltage is then subtracted by the valley voltage to produce the new reference voltage to compare with an inductor voltage for controlling the switching of a switching transistor of the DC/DC convertor.
6 Citations
17 Claims
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1. An average inductor current mode voltage control method for a DC/DC converter comprising the following steps:
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receiving a current signal two times of a designated current and converting the current signal into a voltage signal two times of a designated voltage; converting a valley inductor current produced by an inductor in the DC/DC converter into a valley voltage; and subtracting the valley voltage from the voltage signal two times of the designated voltage to generate a reference voltage that controls the switching of a transistor switch in the DC/DC converter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A variable reference voltage generation unit in a DC-DC converter comprising:
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a sample-hold valley inductor current unit receiving a valley inductor current produced from an inductor and converting the valley inductor current into a valley voltage; and a reference voltage generation unit, electrically connected to the sample-hold valley inductor current unit, receiving a current signal two times of a designated current and then converting the current signal two times of the designated current into a voltage signal two times of a designated voltage wherein a reference voltage is generated by subtracting the valley voltage from the voltage signal two times of the designated voltage. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification