VEHICLE STEP-UP CONVERTER CIRCUIT
First Claim
1. A vehicle step-up converter circuit comprising:
- a battery for supplying power to a vehicle drive motor;
an inductor of which one terminal is connected to one terminal of the battery;
a first switch connected between the other terminal of the inductor and the other terminal of the battery;
a second switch of which one terminal is connected to the other terminal of the inductor;
a capacitor connected between the other terminal of the second switch and the other terminal of the battery; and
a switch control unit for controlling the first switch and the second switch;
due to control of the first switch and the second switch, a voltage, which is an induced electromotive force of the inductor added to the terminal voltage of the battery, is applied to the capacitor and a voltage, which is retained by the capacitor, is output as an output voltage;
due to control of the first switch and the second switch in accordance with travel control of a vehicle, the output voltage is regulated;
wherein the switch control unit regulates the output voltage by controlling the second switch on and off at a predetermined duty ratio.
1 Assignment
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Accused Products
Abstract
A vehicle step-up converter circuit capable of preventing an excessive current from flowing in electric components and quickly regulating the step-up voltage. The vehicle step-up converter circuit comprises a battery; an inductor, one terminal of which is connected to one terminal of the battery; a first switch connected between the other terminal of the inductor and the other terminal of the battery; a second switch, one terminal of which is connected to the other terminal of the inductor; a capacitor connected between the other terminal of the second switch and the other terminal of the battery; and a switch control unit that controls the first and second switches; wherein the first and second switches are controlled, thereby charging the capacitor to output the voltage held by the capacitor. The switch control unit controls the second switch on and off at a predetermined duty ratio, thereby regulating the output voltage.
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Citations
4 Claims
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1. A vehicle step-up converter circuit comprising:
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a battery for supplying power to a vehicle drive motor; an inductor of which one terminal is connected to one terminal of the battery; a first switch connected between the other terminal of the inductor and the other terminal of the battery; a second switch of which one terminal is connected to the other terminal of the inductor; a capacitor connected between the other terminal of the second switch and the other terminal of the battery; and a switch control unit for controlling the first switch and the second switch; due to control of the first switch and the second switch, a voltage, which is an induced electromotive force of the inductor added to the terminal voltage of the battery, is applied to the capacitor and a voltage, which is retained by the capacitor, is output as an output voltage; due to control of the first switch and the second switch in accordance with travel control of a vehicle, the output voltage is regulated; wherein the switch control unit regulates the output voltage by controlling the second switch on and off at a predetermined duty ratio. - View Dependent Claims (2, 3, 4)
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Specification