ાޑᇭߔяĽϸ ʨɼʵĜˁʠˁˋʐʑʗɈ h ʩˁʹĜʗɂழఒਖຑޑݟᇭĪʀʷʛʗಞණī āʠˁˋʐʑʗɈഝဍޑᇭĪూ 8.1 (a)īɁɉĄᆔယɂৄᆔယɬယȫɀ৽Ȣɥɂ၆ᆀɁȜɥȭ ɂɬߔɭȺąഝဍɅ࠲ɩɥᆲɉৄᆔယɬ৽ȢɦɊຶɣɦĄᆔယɉʠˁˋʐʑʗɬ ȯȵɥȹɛɅࢷࢣȳɥɜɈɁĄʨɼɺʑޑᇭɂȱɀȳɁɅߔɭȺąৄᆔɅ࠲ɩɥ ᆲɈोધɅɉĄȭȭɁɓɥ h ʩˁʹĜʗɂঘɊɦɥฤౘȦᅙȞɣɦɥȭɂȦഽȞą IC + ic IB + i b vi vBE RL vCE IC = hFE IB VBB VCC VBB IB Vo + vo (a) ʀʷʛʗಞණഝဍޑᇭ ూ 8.1 ʀʷʛʗಞණഝဍޑᇭ VBE RL VCE Vo ib vi vbe VCC vce RL vi = vbe VCC + (Vo + vo) = vCE VCC + Vo = VCE vo = vce Vo + vo = -RL (IC + ic) Vo = -RL IC vo = -RL ic v1 ib 4ાޑᇭ v1 = h11 i1 + h12 v2 i2 = h21 i1 + h22 v2 v2 vbe ic ᆵ B vce vbe ᆵ E vbe = hie ib + hre vce ic = hfe ib + hoe vce ూ8.2 (b) ʀʷʛʗಞණ Ɉ h ʩˁʹĜʗ vbe hie VT VT hie = —— = hFE —– IB IC hfe ib vce IB ɉᆔ๘Ɉᆔඩ ూ8.3 ࠤᆒݛȯɦȹழఒਖຑޑݟᇭ vo āʀʷʛʗಞණɈഝဍޑᇭɁɉĄᆵɬ E-B ࠰ɅᅇȢĄE-C ࠰Ɂᆵɬଲɤȳą ȷȭɁĄూ 8.1 (c) ɈહߍɈငယɬ 4 ાޑᇭɂॽɀĄ૫ɈɢȠɅȳȭɂȦɁȧɥąȭȭɁĄᆵڗĄ ᆔɬ v1, i1 ɁĄᆵڗɬ v2, i2 ɁȳąȭɦɣɈ 4 ȾɈᆲɈȠȻĄᆵᆔ i1 ɂᆵ ݚɈɢȠɄ 4 ȾɈʩˁʹĜʗɅ ڗv2 ĪᆏဿౘīɁ഼ɈᆲĪv1, i2ć ୦മဿౘīɬȳɂĄ ɢȽɀȷɦɣɈ࠲बɬȳȭɂȦɁȧɥąȭɈ h11 ȥɣ h22 ɘɁɈฤౘɬ h ʩˁʹĜʗɂɢɐą i2 ᆵ C E (c) ழఒਖ (b) ᆔ VBB = VBE i1 B ic = hfe ib vi + VBB = vBE = VBE + vbe ᆵ āhie ɉ E-B ࠰Ɉ pn ಞਗʘɼʂĜʡɈหৣɅഊຎȱĄhre ɉᆵതɈ ڗvce Ȧᆵത ɅȤɢɖȳࣗ܆ɬȱɀȞɥąhfe ɉழఒਖᆔഝဍᆎɁ hoe ɉĄᆵɺʡʷʗˋʑɁȜɥąȭ ɈෂɁĂhre ɂ hoe ɉழȯȩჟɁȧɥɈɁĂ૫ɈɢȠɄࠤᆒݛȱȹʺʟ˃ɜᅙȞɣɦɥą ā߂ h ʩˁʹĜʗɉĄ ʠˁˋʐʑʗູ౯ɂݚూɈɢȠɄ࠲बɅȜɥą ݚɈూɉĄʀʷʛʗಞණɈ ʠˁˋʐʑʗູ౯ɬȱȹɜɈɁĄ൦ǍĆǐঔɉ IB ɬێฤɂȱɀ VCE ɬဿݛȯȵȹɂȧɈ IC Ȥɢɍ VBE ɈဿݛɬȱĄ൦ǎĆǏঔɉ VCE ɬێฤɅȱɀ IB ɬဿݛȯȵȹɂȧɈ IC ɂ VBE ɈဿݛɬȱɀȞɥą IC ΔIC hoe = —— ΔIC ΔVCE hfe = —– ic ΔIB ib IB E-B ࠰ɈʘɼʂĜʡູ౯ hie ɉʘɼʂĜʡɈหৣ ΔVBE hie = —— ΔIB v ib be ΔVBE hre = —— ΔVCE VCE VBE ూ8.4 ʠˁˋʐʑʗɈູ౯࣠ೀĪʀʷʛʗಞණīɂ h ʩˁʹĜʗ ⦎⩦㸸ḟࡢᅇ㊰ࡢᑠಙྕ➼౯ᅇ㊰ࢆ㸦⡆␎ࡉࢀࡓࣔࢹࣝࡼࡾ㸧ᥥࡁ࡞ࡉ࠸㸬 ic ib h ie hre vce hfe ib E C 1 —– vce hoe h ʩˁʹĜʗĪʀʷʛʗಞණī hie: ᆵᅵᆵɼˋʬĜʘˋʑ hre: ᆵާၪ࡚ڗᆎ hfe: ᆵᅵᆔഝဍᆎ hoe: ᆵާၪᆵɺʡʷʗˋʑ ూ8.2 (c) h ʩˁʹĜʗɅɢɥழఒਖຑޑݟᇭ IC RB RC VO VCC IB VCE IE ూ8.5 ʀʷʛʗಞණޑᇭ ݻ൨ 1. ௫ɈᇣɁĄʱĜʑĆʀʷʛʗ࠰ɅழఒਖᆵɬݡȢȹɂȧɈޑᇭɈڗഝဍɬ࢙ ɛɄȯȞąȹȺȱĄRC = 2.0 kΩ, hfe = 200, hie = 1.0 kΩ ɂȳɥą ࣮࣮࢟࣡ࢻ㸸ᑠಙྕ➼౯ᅇ㊰㸪h ࣃ࣓࣮ࣛࢱ㸪㟁ᅽቑᖜᗘ
© Copyright 2024 ExpyDoc