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.
27 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