scope:

This International Standard covers interchangeability of power and data between micro fuel cell power system and electronic devices to provide the micro fuel cell power system compatibility for a variety of electronic device while maintaining the safety and performance of micro fuel cell system. For this purpose, the standard covers power interfaces and its connector configuration. The power management circuitry and power sharing methodology are also provided. This standard also covers data communication protocol and its data specification. Operation modes and alerts conditions are also provided for the means to comply with the power control requirements of electronic device. A micro fuel cell power system block diagram is shown in Figure 1. Micro fuel cell power systems and MFC power units are defined as those wearable or easily carried by hand, providing d.c. outputs that do not exceed 60 V d.c. and power outputs that do not exceed 240 VA. This standard covers the power and data interfaces between micro fuel cell power unit and electronic device.