The machine induces an electrical circuit in the NFC device, which allows a short exchange of data to effect a transaction, such as deducting a fare from the stored value.
NFC设备内部发生电流感应，造成了影响交易的短时数据交换，比如从储蓄值中扣除某种费用。
2
Succeed in developing the interface circuit with higher practical value.
研制成功了有较高实用价值的接口电路。
3
This circuit has both characters of restricting the current within the giving value and limiting the switching frequency of MOSFET operating on current limited condition.