DRIVER DEVICE

The present disclosure relates to a driver device, which can drive a load in high temperatures. In a driver IC which drives a motor (40) by switch-driving four output transistors (M[1]-M[4]), a gate driving circuit (12) is configured to render a slew rate of a gate voltage of each output transistor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMATO TETSUO, TAKIZAWA NOBORU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The present disclosure relates to a driver device, which can drive a load in high temperatures. In a driver IC which drives a motor (40) by switch-driving four output transistors (M[1]-M[4]), a gate driving circuit (12) is configured to render a slew rate of a gate voltage of each output transistor to be adjustable at multiple steps while the output transistor is switching. Although a predetermined rate is set to be the slew rate of the gate voltage in a normal state, the slew rate is increased at high temperatures. 本发明涉及一种驱动器装置。其在高温下也能够驱动负载。在通过开关驱动4个输出晶体管(M[1]～M[4])来驱动马达(40)的驱动器IC(10)中，栅极驱动电路(12)构成为能够分多个阶段变更各输出晶体管开关时的栅极电压的转换速率。通常是，将预先指定的速率设定为栅极电压的转换速率，但在高温下，会提高转换速率。