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Electronic Circuits I

by: Tyree Funk

Electronic Circuits I EGR 315

Tyree Funk
GPA 3.68


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This 3 page Class Notes was uploaded by Tyree Funk on Saturday September 26, 2015. The Class Notes belongs to EGR 315 at Grand Valley State University taught by Staff in Fall. Since its upload, it has received 82 views. For similar materials see /class/214382/egr-315-grand-valley-state-university in Engineering and Tech at Grand Valley State University.

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Date Created: 09/26/15
TMY F01 GRAND VALLEY STATE UNIVERSITY Padnos School of Engineering EGR 315 NOTE 2 Ninety Degree Phase Shifter A ninetydegree phase shift without attenuation can be obtained by using a single transistor circuit This circuit will be ninety degrees at only one frequency The output is phase shifted ninety degrees with respect to the input The ninetydegree phase shift circuit is shown in figure 1 The small signal equivalent circuit model is shown in figure 2 It is this circuit that will be analyzed to determine the output voltage v0 as a function of the input voltage vi Vc FIG 1 hfelb vo rn Vi V V 1b I E r7 V V V AtVE 1hfe1b E0 RC JXC V V V Ath hfelbR C0 C V V V V AtVO EGR 315 NOTE 2 F01 E VE V0 0 r1 r1 RC JXC JXC hfeVihfeVEVcVc V0 0 r n R R R VO V V 1hfe V r71 RC JXC ch VE r71 hfe 1 1 1 hfe c V1 r7r C R R r7r L i i 1 V0 0 ch R ch L J 1hfe 1 1 1 1 1 1 bk 1 1 1 1 1 A r7r RC JXC RC R KR JXC r7r RjXC RC R X 1hfe 1 1 1 r7r RC JXC R2 A1hfe 1hfe L 1 1 2 rnRCR jXCRCrn39RgR jXCR jXCRCR 1hfe 1 1 1 1 1 1 2 r RC R JXC RCR JXC RC RCR EGR 315 NOTE 2 F01 The output voltage V0 is found by applying Cramer39s Rule to the matrix equation above as V 21 0 A 1h 1h 16 0 RV r RC JXC r7r h h M i Li revi r7r RC R r7r 0 JXC R IV Hum 1 1hfe ihre 0 17an jXCRCR 17quot r chXCRr39 1 1 1 hfe o V X R R r h re Air rch R JXC V


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