麻省理工 电路和电子学 公开课 Circuits and Electronics, MIT 课程笔记 - lecture24.pdf

6.002 CIRCUITS AND ELECTRONICS Power Conversion Circuits and Diodes Cite as: Anant Agarwal and Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare (/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.002 Fall 2000 Lecture 24 Power Conversion Circuits (PCC) + PCC 5V DC – 110V 60Hz solar cells, 3V PCC + 5V DC battery DC – DC-to-DC UP converter Power efficiency of converter important, so use lots of devices: MOSFET switches, clock circuits, inductors, capacitors, op amps, diodes R Reading: Chapter 16 and 4.4 of A L. Cite as: Anant Agarwal and Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare (/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.002 Fall 2000 Lecture 24 First, let’s look at the diode i ⎛ vD ⎞ D V i I e 1 − ⎜ T ⎟ + D S ⎜⎝ ⎠⎟ v −12 D I 10 A S – V 0.025 V T