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US 2022/0286041 A1Published application
Overcurrent protection device and power conversion device using same
AssigneeLs Electric Co., Ltd.
InventorsSun Ho BAE, Jae Ho LEE
Life of this patent
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Abstract
Disclosed are an overcurrent protection device and a power conversion device using same. A power conversion device according to an embodiment of the present disclosure comprises: a control unit for providing a collector-emitter voltage to a switching element by means of a first output node; and an overcurrent protection circuit connected in a line between the first output node and the switching element and for limiting the overcurrent of the switching element.
Claims12
An overcurrent protection device comprising:
- a controller configured to provide a collector-emitter voltage to a switching element through a first output node;
- and
- an overcurrent limit circuit disposed between and connected to the first output node and the switching element in series and configured to limit an overcurrent of the switching element.
A power conversion device comprising:
- a direct-current (DC) voltage provider configured to provide a DC voltage;
- a plurality of switching elements, each of which are turned on/off according to a pulse width modulation (PWM) control signal so that the DC voltage is converted and output;
- a controller configured to provide the PWM control signal to a gate of each of the plurality of switching elements through a first output node and provide a collector-emitter voltage to each of the plurality of switching elements through a second output node;
- and
- an overcurrent limit circuit disposed between and connected to the first output node and the switching element in series and configured to limit an overcurrent of the switching element.
2 more elements
Dependencies are inferred from the claim text.