38. 如下圖所示之集極回授偏壓電路,VCC = 12 V,VBE = 0.7 V,電晶體β =120,RC = 1 kΩ,若 VCE = 6.7 V,則RB為何?
【用戶】Neng Kuan Lin
【年級】小一上
【評論內容】Ic=(Vcc-VcE)/1K=5.3mAIb=Ic/β=5.3m/120=0.0441mARB=(VCE-0.7)/0.0441mA=136.9k
【用戶】Neng Kuan Lin
【年級】小一上
【評論內容】Ic=(Vcc-VcE)/1K=5.3mAIb=Ic/β=5.3m/120=0.0441mARB=(VCE-0.7)/0.0441mA=136.9k
【用戶】Neng Kuan Lin
【年級】小一上
【評論內容】Ic=(Vcc-VcE)/1K=5.3mAIb=Ic/β=5.3m/120=0.0441mARB=(VCE-0.7)/0.0441mA=136.9k