| 摘要 |
This new current invention will register a portable charger, especially the USB type one that uses lithium battery of 3.7 V as power source with output of some 5.2 V. It consists of outer case, circuit board within the outer case, USB port on the circuit board. One end of the outer case has a port for the compatible connection of USB port wire. Also installed on the outer case are the transfer part of active switch and passive switch. The passive switch is connected to the main circuit of the circuit board by means of switch. While the charger is not in use, the passive switch is off, and the main circuit is shut off in turn. And the internal battery has almost zero loss to save the energy at its maximum. Only when the charger is in use, some force is operated on the active switch, and the active switch will turn on the passive switch to have the main circuit connected for the consumption of the battery energy. Besides the maximum saving of electricity energy, this new current invention the function of dust-proof. So its prospective application is promising. |
| 主权项 |
1. A portable charger, comprising:
an outer case having a port opening and a converting component; a circuit board having a USB port, the circuit board installed within the outer case;
the port opening of the outer case corresponds to the USB Slot,the control component has an active switch and a passive switch that is operated by active switch,the passive switch is switchably connected to a main circuit of the circuit board,when the charger is not in use, the passive switch is off, and the main circuit is shut off in turn;when the charger is in use, the active switch turns on the passive switch to have the main circuit connected. |
