Lecture_4_diode_rectifiers

Lecture_4_diode_rectifiers - Diode Application 1:...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Hao Jiang Assistant Professor of Electrical Engineering School of Engineering San Francisco State University Diode Application 1: Rectifiers
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Introduction of Microelectronics 2 Diode’s Application: Rectifier A rectifier is a device that passes positive-half cycle of a sinusoid and blocks the negative half-cycle or vice versa. When V in is greater than 0, diode shorts, so V out = V in ; however, when V in is less than 0, diode opens, no current flows thru R 1 , Vout = I R1 R 1 = 0.
Background image of page 2
3 Introduction of Microelectronics 3 Signal Strength Indicator The averaged value of a rectifier output can be used as a signal strength indicator for the input, since V out,avg is proportional to V p , the input signal’s amplitude. p T p T p T out avg out V t V T tdt V T dt t V T V 2 / 0 2 / 0 0 , cos 1 sin 1 ) ( 1 T t V T t t V V out p out 2 T hen w 0 2 0 en wh sin
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Introduction of Microelectronics 4 Half-Wave Rectifier A very common application of diodes is half-wave rectification, where either the positive or negative half of the input is blocked. But, how do we generate a
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 16

Lecture_4_diode_rectifiers - Diode Application 1:...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online