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Wiring to suppress microcomputer power grid interference with low-pass filter
Source: InternetPublisher:柯南道尔 Keywords: Low pass filter microcomputer wiring electromechanical Updated: 2021/04/21
Using a high-precision voltage regulator and correctly wiring it with the isolation transformer
and low-pass filter can further improve
the anti-interference ability of the power supply. The wiring is shown in Figure 20-48
and Figure 20-49. In the figure, the choke coil (Li,
Lz) uses
an MX0-2000 magnetic ring with an inner diameter of 18mm, an outer diameter of 24mm, and a thickness of 8mm as the magnetic core. Li
and L2 are each wound with 50 to 70 turns.
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