Switching control device

The invention provides a switching control device which performs controlling so as to reduce a temperature difference between upper side and lower side elements. According to the embodiment, the switching control device includes an upper side temperature detection unit detecting a temperature of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHIBANO YUSUKE, SHINOHARA NAOTO
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The invention provides a switching control device which performs controlling so as to reduce a temperature difference between upper side and lower side elements. According to the embodiment, the switching control device includes an upper side temperature detection unit detecting a temperature of the upper switching element (hereinafter, ''an upper side temperature''), a lower side temperature detection unit detecting a temperature of the lower switching element (hereinafter, ''a lower side temperature''), and a signal generation circuit adding an offset value to a command voltage of a PWM signal output to the upper and lower switching elements to generate and output a PWM signal to the switching elements so that the upper and lower side temperatures approximate to each other.