Effect of Load Current and Input and Output Capacitors of a Linear Voltage Regulator Chip on the Frequency Dependence of the Ripple Rejection Ratio
- 作者: Ivanov A.1, Petrov V.1
-
隶属关系:
- Russian Technological University MIREA
- 期: 卷 64, 编号 3 (2019)
- 页面: 198-202
- 栏目: TO THE 70th ANNIVERSARY OF MIREA
- URL: https://journals.rcsi.science/1064-2269/article/view/200428
- DOI: https://doi.org/10.1134/S1064226919020074
- ID: 200428
如何引用文章
详细
Effect of load current and input and output capacitors on the frequency dependence of the ripple rejection ratio is studied for a classical linear voltage regulator based on an LM317L-N chip. In the absence of external capacitors, ripple rejection decreases with an increase in the load current at different input and output voltages. It is shown that a capacitor connected at the regulator output provides a significant increase in the ripple rejection ratio at frequencies of higher than 200 kHz and a capacitor connected in parallel to the regulating resistor in the feedback circuit provides an increase at frequencies of less than 300 kHz.
作者简介
A. Ivanov
Russian Technological University MIREA
Email: vapetrov@mirea.ru
俄罗斯联邦, Moscow, 119454
V. Petrov
Russian Technological University MIREA
编辑信件的主要联系方式.
Email: vapetrov@mirea.ru
俄罗斯联邦, Moscow, 119454