[{"title":"(3个子文件453KB)LM2596做的高压降压并转正负电压PCB+原理图","children":[{"title":"power2596","children":[{"title":"2596.SchDoc <span style='color:#111;'>121.00KB</span>","children":null,"spread":false},{"title":"POWER.PCBDOC <span style='color:#111;'>551.00KB</span>","children":null,"spread":false},{"title":"power.PrjPcb <span style='color:#111;'>27.97KB</span>","children":null,"spread":false}],"spread":true}],"spread":true}]