TEMPERATURE MONITORING SYSTEM OF POWER SEMICONDUCTING DEVICE AND TEMPERATURE MONITORING METHOD THEREOF

摘要

The present invention is an invention relating to a temperature monitoring system for power semiconductors, power semiconductors, which are the subject of monitoring ; V for detecting the voltage between the drain and the source of the power semiconductor _ds detector; Analog-to-digital converter to be formed in the V _ds measuring the temperature of the power semiconductor itself and from the main control unit for generating a signal for controlling the power semiconductor to prevent overheating; And a display unit for displaying the temperature of the power semiconductor as measured in the main control, and as the temperature monitor, the method comprising: directly detecting the voltage between the source end and the drain end of the power semiconductor; The detected temperature of the power semiconductors is calculated from the voltage, converts the analog signal for controlling the power semiconductor to prevent overheating in digital signal state control step of generating a signal; And a step of displaying the calculated temperature. ; By providing a system and method for monitoring the temperature of a power semiconductor according to the present invention like this, it is possible to set the temperature protection for the user, the different capacities available to, and can be added as well as to facilitate a variety of functions, there is no need for a separate sensor is applicable for a variety of power semiconductor devices.