Overcurrent protection device

The utility model provides an overcurrent protection device, which is used in an active power factor correction circuit. The overcurrent protection device comprises a current/voltage converter used for receiving a system current and converts the system current to a voltage signal; and the overcurren...

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Bibliographische Detailangaben
1. Verfasser: YU QIANBO
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model provides an overcurrent protection device, which is used in an active power factor correction circuit. The overcurrent protection device comprises a current/voltage converter used for receiving a system current and converts the system current to a voltage signal; and the overcurrent protection device also comprises a voltage compensator for compensating the voltage signal and at least a trigger which is connected with the current/voltage converter. The overcurrent protection device can provide higher precision after receiving the small-amplitude signal, and can prevent the circuit damage caused by periodic action.