The whole working process of wireless charging has many states, mainly including standby, identification, slow charging/fast charging, abnormal handling (reminder/limiting power/disconnecting energy transmission), full switching and other different states. The charger is in each state There will be different treatments.
In standby mode, the wireless charger will work intermittently to identify whether a mobile phone is placed on the charger coil. Generally, it will work for tens of milliseconds within 1 second. If the transmitter has low power consumption processing, the average working time may be lower. Lower. That is, the charger coil enters the non-working state after tens of milliseconds. If an abnormality is identified, such as an abnormally large current or an abnormally high coil voltage, the charger will enter the abnormal processing state. If the charger receives the charging data of the mobile phone within these tens of milliseconds, it will enter the recognition phase. So cycle.