Piloting circuit for a DC motor inductive load which prevents damage to the piloting transistor in the event of supply voltage reversal

The piloting circuit has a branch circuit (3) which is intended to be connected to a DC supply (4) with a predetermined polarity. The drain-source path of a MOSFET transistor (5) intended to receive an on-off piloting signal on its gate is connected in series with the motor load (2). A current recir...

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Bibliographische Detailangaben
Hauptverfasser:	AVIDANO MAURIZIO, MOURAD KAMAL
Format:	Patent
Sprache:	eng ; ita
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The piloting circuit has a branch circuit (3) which is intended to be connected to a DC supply (4) with a predetermined polarity. The drain-source path of a MOSFET transistor (5) intended to receive an on-off piloting signal on its gate is connected in series with the motor load (2). A current recirculation diode (7) is connected in parallel with the load. Circuit protection devices (14) prevent damage to the MOSFET and diode in the event of polarity reversal of the supply voltage.