カテゴリ: PCB設計

いつ選択すればよいですか 2 層PCBまたは 4 層PCB?

2-層PCB is enough to route any circuitry, at least in theory. One layer for vertical tracks, the other for horizontal tracks, connect them with via’s.

If you need route high-speed signals on the PCB, such as RF circuitry, switched-mode power supplies, and long digital buses, 4-レイヤー are required. They are widely applied in modern datasheets, high-performance semiconductors, switched-mode PSU, heat-rejecting devices.

  • It can ensure the signal integrity, even though the return path for the signal currents is too long and the loop impedance is too high.
  • The radiated EMI will be steady so as to pass CE/FCC.
  • ensure that the device won’t emit too much radiation and would be robust against interference.

Price of a 4 layer PCB is roughly 3x-4x higher than that of a 2-layer one. しかしながら, ほとんどの時間 2 layer is not a viable option.

続きを読む: 2層PCBまたは1層PCBを使用する必要があります?

#PCB設計

オリバー・スミス

オリバーは、PCB 設計に熟練した経験豊富なエレクトロニクス エンジニアです。, アナログ回路, 組み込みシステム, とプロトタイピング. 彼の深い知識は概略図のキャプチャに及びます, ファームウェアコーディング, シミュレーション, レイアウト, テスト, そしてトラブルシューティング. オリバーは、電気設計の才能と機械の適性を活かして、プロジェクトをコンセプトから量産まで進めることに優れています。.

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