DC-DC Converter for Electric Automobile
First Claim
1. A DC-DC converter for an electric automobile interposed between an accumulation device and a drive motor of the electric automobile for raising electric power of the accumulation device by means of a reactor, a boosting switching element, and a boosting diode at the time of power driving by the drive motor and for lowering regenerative electric power by means of the reactor, a step-down switching element, and a step-down diode at the time of regeneration of the drive motor, wherein:
- a current allowance of the boosting switching element is larger than a current allowance of the step-down switching element.
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Abstract
Provided is a cost-reduced DC-DC converter for an electric automobile. This DC-DC converter is interposed between an accumulation device and a drive motor of the electric automobile for raising the electric power of the accumulation device at the power driving time of the drive motor by using a reactor, a boosting switching element and a boosting diode, and for lowering a regenerative electric power at the regenerating time of the drive motor by using the reactor, a step-down switching element and a step-down diode. The boosting switching element has a higher current allowance than that of the step-down switching element.
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Citations
20 Claims
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1. A DC-DC converter for an electric automobile interposed between an accumulation device and a drive motor of the electric automobile for raising electric power of the accumulation device by means of a reactor, a boosting switching element, and a boosting diode at the time of power driving by the drive motor and for lowering regenerative electric power by means of the reactor, a step-down switching element, and a step-down diode at the time of regeneration of the drive motor, wherein:
a current allowance of the boosting switching element is larger than a current allowance of the step-down switching element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17)
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11. A DC-DC converter for an electric automobile interposed between an accumulation device and a drive motor of the electric automobile for raising electric power of the accumulation device by means of a reactor, a boosting switching element, and a boosting diode at the time of power driving by the drive motor and for lowering regenerative electric power by means of the reactor, a step-down switching element, and a step-down diode at the time of regeneration of the drive motor, wherein:
a current allowance of the boosting diode is larger than a current allowance of the step-down diode. - View Dependent Claims (18, 19, 20)
Specification