UNINTERRUPTIBLE POWER SUPPLY CONTROL DEVICE, OPERATION METHOD OF UNINTERRUPTIBLE POWER SUPPLY CONTROL DEVICE, AND SMART TEXTILE

An operation method of an uninterruptible power supply control device is described below. The uninterruptible power supply control device is electrically coupled to a voltage output terminal of a portable power device and a ground terminal of the portable power device. At least one electrical power conversion device has one end electrically coupled to the voltage output terminal and the other end electrically coupled to the ground terminal. If the portable power device's current is less than a threshold current of the portable power device and maintained for a first duration which is less than a threshold duration of the portable power device, an enabling current greater or equal to the threshold current is generated between the voltage output terminal and the ground terminal and as part of the current.