The invention relates to the technical field of electronics, and discloses an electronic lock circuit of automobile charging equipment, which comprises a driving circuit, a feedback circuit, a level conversion circuit, a logic control circuit, an isolating circuit, a buck-boost capacitor charging and discharging circuit and a power-off unlocking circuit. The controller is connected to the level conversion circuit; the level conversion circuit is connected with the logic control circuit; the logic control circuit is connected with the isolation circuit; the isolating circuit is connected with the driving circuit; the driving circuit is connected with the driving port; the feedback port is connected to the feedback circuit; the feedback circuit is connected with the controller; the capacitor charging and discharging circuit is connected with the power-off unlocking circuit; the de-energizing unlocking circuit is connected with the isolating circuit; the driving circuit is connected with the driving port. According to the invention, PWM signals are used for driving and controlling, interference is resisted, and false operation is not caused; during program debugging, breakpoints are broken when locking/unlocking logic is driven, PWM has no output, and damage cannot be caused; when the charging pile auxiliary source is abnormally powered down, the capacitor charging and discharging circuit is used for unlocking; the number of the control feedback signal line is one, resource occupation is small, and design is simplified.
本发明涉及电子技术领域,公开了一种汽车充电设备电子锁电路,驱动电路、反馈电路、电平转换电路、逻辑控制电路、隔离电路、buck‑boost电容充放电电路、掉电解锁电路;控制器连接至电平转换电路;电平转换电路接逻辑控制电路;逻辑控制电路接隔离电路;隔离电路接驱动电路;驱动电路接驱动端口;反馈端口接至反馈电路;反馈电路接控制器;电容充放电电路接掉电解锁电路;掉电解锁电路接隔离电路;驱动电路接驱动端口。本发明用PWM信号驱动控制,抗扰,不引发误动作;程序调试时在驱动上锁/解锁逻辑时打断点,PWM无输出,不会造成损坏;充电桩辅源异常掉电时用电容充放电电路解锁;控制反馈信号线为一根,资源占用少,简化设计。
Electronic lock circuit of automobile charging equipment
汽车充电设备电子锁电路
2025-01-21
Patent
Electronic Resource
Chinese
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 / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte / H01R Elektrisch leitende Verbindungen , ELECTRICALLY-CONDUCTIVE CONNECTIONS / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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