公开(公告)号：US20140218074A1

公开(公告)日：2014-08-07

申请号：US14172415

申请日：2014-02-04

Applicant: DENSO CORPORATION

Inventor： Yuusuke MURATA ,  Takeyasu KOMATSU ,  Tsuneo MAEBARA

IPC: H03K3/012

CPC classification number: H03K17/14 ,  H03K17/567

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.

Abstract translation: 在本发明中，控制具有控制端子并由输入到控制端子的电压驱动的半导体开关元件的电路控制装置具有输入电压检测器，期望的电压设定部分和控制输入产生部分。 输入电压检测器检测对开关元件的输入电压。 期望的电压设定部设定要输入到开关元件的电压的期望值。 控制输入​​生成部分连接到开关元件的控制端子，控制输入产生部分产生控制输入到开关元件，使得由输入电压检测器检测的值接近设定的期望值。 期望的电压设定部分基于预定特性信息和开关元件的操作参数来设置电压的期望值。 操作参数包括开关元件的温度，Vce，Ice等。