Circuit control device
First Claim
1. A circuit control device controlling a semiconductor switching element having a control terminal and driven by voltage inputted to the control terminal, comprising:
- an input voltage detector that detects inputted voltage to the switching element;
a desired voltage setting portion that sets a desired value of the voltage to be inputted to the switching element on the basis of predetermined characteristics information of the switching element;
a control input generation portion connected to the control terminal of the switching element, the control input generation portion generating control input to the switching element such that the value to be detected by the input voltage detector approaches the set desired value.
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Accused Products
Abstract
In the invention, a circuit control device controlling a semiconductor switching element having a control terminal and driven by voltage inputted to the control terminal, has an input voltage detector, a desired voltage setting portion and a control input generation portion. The input voltage detector detects inputted voltage to the switching element. The desired voltage setting portion sets a desired value of the voltage to be inputted to the switching element. The control input generation portion is connected to the control terminal of the switching element, the control input generation portion generating control input to the switching element such that the value to be detected by the input voltage detector closes to the set desired value. The desired voltage setting portion sets the desired value of the voltage on the basis of predetermined characteristics information and operating parameters of the switching element. The operating parameters include temperature of the switching element, Vce, Ice etc.
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Citations
8 Claims
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1. A circuit control device controlling a semiconductor switching element having a control terminal and driven by voltage inputted to the control terminal, comprising:
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an input voltage detector that detects inputted voltage to the switching element; a desired voltage setting portion that sets a desired value of the voltage to be inputted to the switching element on the basis of predetermined characteristics information of the switching element; a control input generation portion connected to the control terminal of the switching element, the control input generation portion generating control input to the switching element such that the value to be detected by the input voltage detector approaches the set desired value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification