A main control circuit (11) for driving a motor is configured so as to have: a Pch FET (T11), which is provided in series with a diode (D1), and the source (S) of which is connected to a secondary-side contact (MC2) of a main contactor (MC) while the drain (D) is connected to the anode (A) of the diode (D1); and a gate voltage generation circuit (12) for the Pch FET (T11). The gate voltage generation circuit is formed so as to have a first resistor (R11), one end (R11a) of which is connected to the source (S) of the Pch FET (T11), and the other end (R11b) of which is connected to the gate (G) of the Pch FET (T11), and a second resistor (R12), one end (R12a) of which is connected to the gate (G) of the Pch FET (T11) and the other end (R12b) of which is connected to the negative-electrode-side line (L2) of a battery.
Motor driving circuit
2016-09-06
Patent
Electronic Resource
English
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / 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 |