A protection circuit according to the present disclosure is for a direct current (DC)-DC converter including a buck switch connected between a voltage input terminal and a first node, the buck switch being controlled by a switching cycle and a duty cycle of a switching signal; a buck inductor connected between the first node and a voltage output terminal; a buck capacitor connected between the voltage output terminal and a ground; and a buck diode connected between a second node and the ground. The protection circuit is connected to the first node, the second node and the ground. When the buck switch is switched between an On state and an OFF state according to the switching signal, the protection circuit is configured to supply a protection voltage between the first node and the ground so that voltage stress of the buck switch is smaller than an input voltage supplied between the voltage input terminal and the ground.
PROTECTION CIRCUIT, DC-DC CONVERTER, BATTERY CHARGER AND ELECTRIC VEHICLE
SCHUTZSCHALTUNG, GLEICHSPANNUNGSWANDLER, BATTERIELADEGERÄT UND ELEKTROFAHRZEUG
CIRCUIT DE PROTECTION, CONVERTISSEUR CC-CC, CHARGEUR DE BATTERIE ET VÉHICULE ÉLECTRIQUE
2023-11-29
Patent
Electronic Resource
English
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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