Read Microcontroller is one of the most prevail technology in the microcontroller extraction industry. And power consumption analysis has become the most useful method in this AT89C51CC03 MCU program reading method which has been invented into the market for quite a long time. That is why this technology has been matured for a long time and make space to make improvement.

We have made the new improvement on the power consumption analysis, this is a new method and we haven’t found any similarities before for MICROCONTROLLER code extraction. Metal iron transformer has been used to replaced the resistor connected to the power supply or grounding which will make the wave form a little bit of difference, since the DC of signal can be lost. And the same time there is same advantages since there is no limitation on the Direct current.

As for the 10 ohm resistor, 100mA current means there is 1V voltage decrease, which can also probably terminate the normal operation of microcontroller unlocking. Decrease the resistor can help to solve the problem but it can serve to bring more difficulties to identify the minor variation in the power consumption when extract IC code from its backside. After the usage of transformer, no need to use the active source probe with expensive price. Since the standard negative probe can acquire almost the same result. If the signals is too small to identify, adjust the coils on both sides can increase the range.

Transformer can also play the same role for negative source wave filter, such as the wave form, since the same process order can have different effect on the wave form detected from the resistor and transformer. And it can process the signals attained. In order to win the success of IC code extraction, it is necessary to collect thousands of samples and then analyze the revealed secret swiftly.