9-2上题电路中,在169负载上要求输出功率为8W,试确定下列功率管要求的极 限参数PcM、U(scB及Iw 1U2 ∵P= 01 2R, L ∴Uon=√2PR1=√2×8×16=16V 16 lmn="=:=1A R L 16 UCC=UEE>Uom U(BR)CEO 2UCC : U(BR)CEo > 32V cm(max) =CC>om=Im=1A ICM>I R R cm(max) L L ∴Iom>1AL om L R U P 2 2 1  = Uom = 2PL RL = 2816 = 16V 1A 16 16 = = = L om cm R U I UCC = UEE  Uom U(BR)CEO  2UCC U(BR)CEO  32V (max) =  = cm = 1A L o m L CC cm I R U R U I  ICM  1A CM cm(max) I  I