Automatic mobile device detector

摘要

Devices, methods and systems disclosed herein relate to a universal charger which provides a power supply for the charging of OMTP devices and non-OMTP devices based on whether an OMTP mobile communication device or a non-OMTP mobile communication device is connected. A power charging apparatus is provided for charging a mobile communication device. The power charging apparatus includes a connector for connecting to a charging port of the mobile communication device, and a controller coupled to the connector, the controller configured to determine whether the mobile communication device connected to the connector is a non-OMTP mobile communication device or an OMTP mobile communication device, the controller further configured to charge a non-OMTP mobile communication device when a non-OMTP mobile communication device is connected to the connector, and further configured to charge an OMTP mobile communication device when an OMTP mobile communication device is connected to the connector.

主权项

1. A power charging device configured to charge a mobile communication device, the power charging device comprising:
a voltage divider coupled to a first pin that provides current for charging the mobile communication device, the mobile communication device being an Open Mobile Terminal Platform (OMTP) mobile communication device or a non-OMTP mobile communication device; and a controller including:
a second pin coupled to the voltage divider and receives a first voltage when the OMTP mobile communication device is connected to a connector or a second voltage caused by the connection of a non-OMTP mobile communication device to a connector, a comparator coupled to the second pin and configured to:
receive the first voltage or the second voltage from the second pin, andoutput a first signal when the first voltage is received and a second signal when the second voltage is received; and a logic-timer coupled to the comparator and configured to:
receive the first signal or the second signal from the comparator,cause a short across at least a portion of the voltage divider to provide a first current for charging the OMTP mobile communication device from the first pin when the first signal is received at the second pin, andprovide a second current for charging the non-OMTP mobile communication device from the first pin when the second signal is received at the second pin.