DC/DC CONVERTER CIRCUIT
First Claim
1. A DC/DC converter circuit comprising:
- a charging pump circuit that discharges an electric charge charged during a charging period to a load during a boosting period; and
an amplifier and a voltage control resistor element arranged in a feedback loop by being configured with the feedback loop of feeding back an output voltage such that the output voltage of the charging pump circuit is made to be a predetermined value during the boosting period;
wherein the voltage control resistor element is controlled by the amplifier and sets to a control resistance value enabling to control the charging pump circuit during the boosting period; and
wherein the amplifier controls the voltage control resistor element such that the voltage control resistor element is brought into an OFF state during the charging period, and a resistance value of the voltage control resistor element is lowered to the control resistance value immediately after shifting from the charging period to the boosting period.
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Accused Products
Abstract
A charging pump circuit of discharging electric charge charged during charging period to load during boosting period, and an amplifier and a voltage control resistor element arranged in feedback loop by being configured with the feedback loop of feeding back output voltage such that the output voltage of the charging pump circuit is made to be a predetermined value during boosting period are provided, the voltage control resistor element is controlled by the amplifier, and set to a control resistance value of enabling the charging pump circuit to control during boosting period, and the amplifier controls the voltage control resistor element such that the voltage control resistor element is brought into OFF state during charging period, and a resistance value of the voltage control resistor element is lowered to a control resistance value immediately after shifting from charging period to boosting period.
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Citations
7 Claims
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1. A DC/DC converter circuit comprising:
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a charging pump circuit that discharges an electric charge charged during a charging period to a load during a boosting period; and an amplifier and a voltage control resistor element arranged in a feedback loop by being configured with the feedback loop of feeding back an output voltage such that the output voltage of the charging pump circuit is made to be a predetermined value during the boosting period; wherein the voltage control resistor element is controlled by the amplifier and sets to a control resistance value enabling to control the charging pump circuit during the boosting period; and wherein the amplifier controls the voltage control resistor element such that the voltage control resistor element is brought into an OFF state during the charging period, and a resistance value of the voltage control resistor element is lowered to the control resistance value immediately after shifting from the charging period to the boosting period. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification