Introduces three end the working process of the ic components LM317T chip voltage stabilizer and its output voltage calculation formula. Based on the consideration of the power supply circuit chip, design a kind of using the three electronic component LM317T power supply circuit, the regulators used to give panel chip power supply.
Circuit design, and analyzes in detail its circuit design methods, gives this circuit is main parameters calculation and experimental waveform. Finally made the power supply power circuit PCB, measured each important test point voltage signal, to power supply circuit with Protel simulation, the results of simulation and actual testing calculated value of compliance proof design of power supply electronic components circuit is reliable, has certain practical value.
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