The invention relates to a circuit (100) for discharging a high-voltage electrical system comprising at least one power transistor (Q1) and an electrical energy storage device including at least one capacitor (C3), the discharge circuit (100) comprising:– a control branch (120) for configuring the power transistor (Q1) in a conduction mode in order to discharge the capacitor (C3);– a regulating branch (130) designed to control a gate current (iG) flowing into the control branch (120) of the power transistor (Q1), the regulating branch (130) being designed to command the gate current (iG) in such a way that each power transistor (Q1) dissipates a power less than or equal to 5 W during a discharge period less than or equal to 5 seconds enabling discharging of the capacitor (C3). The invention also relates to a control unit of a power electric machine comprising such a discharge circuit (100) as well as a method for discharging a device for storing electrical energy (400).
CIRCUIT DE DECHARGE D'UN SYSTÈME ELECTRIQUE HAUTE TENSION
CIRCUIT FOR DISCHARGING A HIGH-VOLTAGE ELECTRICAL SYSTEM
SCHALTUNG ZUM ENTLADEN EINES ELEKTRISCHEN HOCHSPANNUNGSSYSTEMS
2023-11-01
Patent
Electronic Resource
French
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES , Systeme zum Regeln elektrischer oder magnetischer Veränderlicher / H03K PULSE TECHNIQUE , Impulstechnik |
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