CONTROL DEVICE
First Claim
1. A control device for controlling the drive of a voltage-controlled switching element, the control device comprising:
- a drive circuit that generates and outputs a drive signal corresponding to an input signal;
a plurality of transistors that are driven by the drive signal output from the drive circuit and control the drive of the switching element; and
a transistor operation controller that controls operations of the plurality of transistors,wherein the transistor operation controller, in a normal operation, supplies the same drive signal, which is output from the drive circuit, to the plurality of transistors in order to collectively operate the plurality of transistors, and, in a test operation, sequentially selects any one of the plurality of transistors and supplies the same drive signal to the selected transistor in order to individually operate the plurality of transistors.
1 Assignment
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Accused Products
Abstract
Aspects of the present invention provides a device that is capable of accurately measuring an output current of a transistor, controls the drive of a switching element, by using an existing IC tester without any evaluation board improvement. The control device according to one aspect of the present invention has: a drive circuit, a plurality of transistors for controlling the drive of a switching element and a transistor operation controller. A transistor for turning the switching element OFF is configured by a plurality of transistors. The transistor operation controller, in a normal operation, performs ON/OFF control on the two transistors simultaneously or collectively by means of the same drive signal output from the drive circuit. In a test operation, the transistor operation controller sequentially selects one of the transistors and supplies the same drive signal to the selected transistor, to drive the transistors individually.
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Citations
12 Claims
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1. A control device for controlling the drive of a voltage-controlled switching element, the control device comprising:
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a drive circuit that generates and outputs a drive signal corresponding to an input signal; a plurality of transistors that are driven by the drive signal output from the drive circuit and control the drive of the switching element; and a transistor operation controller that controls operations of the plurality of transistors, wherein the transistor operation controller, in a normal operation, supplies the same drive signal, which is output from the drive circuit, to the plurality of transistors in order to collectively operate the plurality of transistors, and, in a test operation, sequentially selects any one of the plurality of transistors and supplies the same drive signal to the selected transistor in order to individually operate the plurality of transistors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification