Circuit Operation - Voltage Divider Bias Circuit, tseem hu ua emitter tam sim no bias, yog qhov ruaj khov tshaj plaws ntawm peb theem pib transistor bias circuits. … Resistors R1 thiab R2 ua ib qho kev faib hluav taws xob uas faib cov khoom siv hluav taws xob los tsim lub hauv paus tsis zoo voltage (VB).
Lub hom phiaj ntawm qhov kev faib hluav taws xob sib cais yog dab tsi?
Voltage dividers yog siv rau kho cov theem ntawm lub teeb liab, rau kev tsis ncaj ncees ntawm cov khoom siv hauv lub tshuab hluav taws xob, thiab ntsuas qhov ntsuas hluav taws xob. Ib tug Wheatstone choj thiab ib tug multimeter ob leeg muaj xws li voltage dividers. Lub potentiometer yog siv los ua qhov sib txawv ntawm qhov sib txawv ntawm qhov kev tswj lub ntim ntawm ntau lub xov tooj cua.
Lub ntsuas hluav taws xob ua dab tsi hauv lub voj voog?
Ib qhov hluav taws xob faib ua raws nraim li nws lub npe qhia - nws faib cov khoom siv hluav taws xob hla ob lub resistors uas txuas nrog hauv koob. Ob lub resistors yuav muaj qhov tseem ceeb ruaj khov lossis ib qho yuav yog LDR, lub thermistor lossis lwm yam khoom siv nkag.
Dab tsi muaj peev xwm faib hluav taws xob Circuit Court?
Potential-divider bias circuit
Daim duab 5.11(a) qhia ib qho amplifier circuit siv tam sim no-derived series tawm tswv yim. Nyob rau hauv no Circuit Court, lub d.c. puag voltage VB yog kho los ntawm qhov muaj peev xwm faib ua ke R1 thiab R2 Lub teeb liab nkag mus rau hauv paus ntawm lub coupling capacitor, raws li nyob rau hauv lub yav dhau los circuit.
Dab tsi yog kev tsis ncaj ncees?
Lwm qhov kev teeb tsa uas tuaj yeem muab kev tsis ncaj ncees siab siab yog qhov sib faib hluav taws xob tsis zoo. Es tsis txhob siv cov khoom tsis zoo tawm ntawm lub emitter resistor, zoo li ob-siv emitter bias, qhov kev teeb tsa no rov qab cov emitter resistor rau hauv av thiab nce lub hauv paus voltage.… 1: Voltage divider bias.
