PE-67540NL

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Common mode chokes are an important tool in signal transmission. They are used to reduce common mode noise in electronic circuits. The PE-67540NL from Panasonic is an example of a common mode choke designed for signal transmission applications. This article will look at the application field and working principle of this choke.

Application Field

The PE-67540NL is a common mode choke designed for use in signal transmission applications. It is ideal for use in Ethernet networks, USB cables, power line equipment, and other applications. The choke can be used to reduce common mode interference, allowing for improved signal throughput. The choke is a bi-directional device which can be used to improve the signal quality on both the transmitter and the receiver side.

Working Principle

The PE-67540NL works by using a magnetic field to create a voltage drop between the two terminals. The choke allows for differential mode signals (signals traveling in one direction) to pass through, but stops common mode signals (signals traveling in two directions). Since the choke can only affect common mode signals, it does not degrade the quality of the differential mode signal and thus improves the overall signal quality.

When a differential mode signal passes through the choke, it induces a current in the magnetic field. This current creates a healthy signal and thus allows the signal to pass through. On the other hand, when a common mode signal enters the choke, it creates a reverse current. This reverse current creates a voltage drop, which blocks the signal from passing through.

In addition to blocking common mode signals, the choke also helps reduce EMI (electromagnetic interference). This is done by absorbing and dissipating the EMI energy. The choke also helps to reduce RF radiation, which is generated by the differential mode signals. This helps to ensure that the signals traveling through the choke are of high quality.

In summary, the PE-67540NL is a common mode choke designed for signal transmission applications. It works by using a magnetic field to create a voltage drop between the two terminals, which allows for differential mode signals to pass through, but blocks common mode signals. The choke also helps reduce EMI and RF radiation, making it an ideal choice for signal transmission applications.

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