PSM1-131P-10T2

EMI/RFI filters are electromagnetic noise suppression components that isolate sensitive circuits from conducting undesirable interference with other surrounding electronic device. Such filters are used in a variety of electronic systems such as telecommunication, automotive, medical, aerospace, consumer electronics, process control systems, etc. This paper presents the application field and working principle of PSM1-131P-10T2.

Application Field

PSM1-131P-10T2 is an electromagnetic interference (EMI) filter designed for down-hole welding systems. It is specifically designed to meet industry regulations for conducted emissions, such as FCC Part 15 - Class A, EN 55022, and IEC 61000-4-6. The filter works as a low-pass filter, providing common-mode and differential-mode noise suppression. It can also filter out transients, radiated emissions, and other disturbances that can degrade the performance of the welding system. The filter series also offer superior power rating and increased current handling capability in a compact size.

Working Principle

The PSM1-131P-10T2 filter is an inductor-capacitor (LC) filter circuit utilized in the rejection of electromagnetic interference (EMI). It consists of an inductor-capacitor network, arranged to form a high-pass, low-pass, or band-pass filter. This filter allows a certain frequency range to pass and attenuates signals outside of this frequency range. The filter has two components, the inductor and the capacitor. The inductor is a coil of wire which blocks DC signals and allows AC signals in the frequency range of interest. The capacitor provides additional impedance, and together with the inductor, blocks out signals with frequencies outside of the desired range.

The inductor-capacitor (LC) filter circuit utilizes a low-pass architecture. Low-pass filters are used to remove high frequency components from a signal and reduce the level of unwanted electromagnetic noise. The components of the filter can be tuned to the frequencies of interest, thus allowing the filter to selectively reject the undesired noise. This is an important feature since it can reject interference from other sources while preserving the desired signals.

In addition to the inductor-capacitor network, the PSM1-131P-10T2 filter also utilizes a resistor-capacitor (RC) network in its design. This RC network is used to reduce interference from higher frequencies, and is typically used in conjunction with the inductor-capacitor network. This RC network typically consists of a resistor in series with two capacitors, and can be tuned to provide additional shielding for the desired signals.

In conclusion, the PSM1-131P-10T2 filter is a LC and RC filter designed for down-hole welding systems. It allows a certain frequency range to pass and attenuates signals outside of this frequency range. The filter is designed to meet industry regulations for conducted emissions, such as FCC Part 15 - Class A, EN 55022, and IEC 61000-4-6. It is also designed to provide superior power rating and increased current handling capability in a compact size, making it an ideal solution for a wide variety of applications.