Gate driving circuit and switching power supply device
First Claim
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1. A gate driving circuit that is connected to a main switching element, the gate driving circuit comprising:
- a first switching element;
a second switching element; and
a gate resistor,wherein the gate resistor includes a first voltage controlled resistor of which a resistance value is able to be continuously changed, and a second voltage controlled resistor of which a resistance value is able to be continuously changed,an end on one side of the first voltage controlled resistor is connected to a high potential, and an end on the other side of the first voltage controlled resistor is connected to the main switching element via the first switching element,the main switching element is connected to an end on one side of the second voltage controlled resistor via the second switching element,an end on the other side of the second voltage controlled resistor is connected to a low potential.
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Abstract
A gate driving circuit is connected to a main switching element. The gate driving circuit includes a gate resistor. The gate resistor includes a voltage controlled resistor of which a resistance value is able to be continuously changed. A switching power supply device includes a gate driving circuit, a main switching element, and a freewheeling diode connected in reverse parallel to the main switching element.
25 Citations
6 Claims
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1. A gate driving circuit that is connected to a main switching element, the gate driving circuit comprising:
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a first switching element; a second switching element; and a gate resistor, wherein the gate resistor includes a first voltage controlled resistor of which a resistance value is able to be continuously changed, and a second voltage controlled resistor of which a resistance value is able to be continuously changed, an end on one side of the first voltage controlled resistor is connected to a high potential, and an end on the other side of the first voltage controlled resistor is connected to the main switching element via the first switching element, the main switching element is connected to an end on one side of the second voltage controlled resistor via the second switching element, an end on the other side of the second voltage controlled resistor is connected to a low potential. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification