Ripple noise is often generated on Phoenix Contact power distribution system. This noise will interfere with the surrounding high-speed equipment and may lead to the misoperation of the chip. If there is not enough stable power supply to support the behavior of high-speed components, it will be unpredictable. Power integrity analysis mainly discusses and solves the stability of power supply.

對于理想的電源分配系統傳輸路徑阻抗為零，在電源平面上任何一點的電位都是保持恒定，并等于系統供給電壓而實際的電源分配系統，由于各種噪聲干擾的存在，電源分配系統上的電位會有波動，有時甚至很嚴重影響系統的正常工作。

For the ideal power distribution system, the transmission path impedance is zero, and the potential at any point on the power plane remains constant and equal to the system supply voltage. In the actual power distribution system, due to the existence of various noise interference, the potential on the power distribution system will fluctuate, sometimes even seriously affect the normal operation of the system.

菲尼克斯電源不穩定的主要表現形式就是同步開關噪聲，是指高速開關器件狀態切換時產生的瞬態交變電流，在經過回流路徑上存在電感時，形成的交流壓降所以也稱為噪聲。

The main manifestation of Phoenix Contact power supply instability is synchronous switching noise, which refers to the AC voltage drop formed by the transient alternating current generated during the state switching of high-speed switching devices and when there is inductance on the return path, so it is also called noise.

如果電源反彈噪聲的相位與地反彈噪聲相反，會使高電平信號上噪聲波形幅度加倍。電壓調節模塊是供電的源端，轉換電壓到另一個電壓。某元件的使用一個參考電壓和反饋回路來監測負載電壓，從而達到調節輸出電流的作用。

If the phase of the power bounce noise is opposite to the ground bounce noise, the amplitude of the noise waveform on the high-level signal will be doubled. The voltage regulation module is the source of power supply and converts the voltage to another voltage. A component uses a reference voltage and feedback loop to monitor the load voltage, so as to adjust the output current.