| 摘要 |
PROBLEM TO BE SOLVED: To improve the success rate of data transmission by suppressing the dropping of power voltage in the case of data transmission in a non-contact IC card for transmitting data by a load switching system. SOLUTION: In order to reduce the current consumption of a regulator 22 with the lowering of the load impedance of an antenna L2 in the case of signal transmission by the load switching system, a regulator 22 is cut off from a power source line 25 by a transistor M2. |
