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Β Meter Version II (ruaj khov dua thiab raug dua): 6 Kauj Ruam
Β Meter Version II (ruaj khov dua thiab raug dua): 6 Kauj Ruam

Video: Β Meter Version II (ruaj khov dua thiab raug dua): 6 Kauj Ruam

Video: Β Meter Version II (ruaj khov dua thiab raug dua): 6 Kauj Ruam
Video: Txom nyem vim kev vum loj 7/18/2018 2024, Kaum ib hlis
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Β Meter Version II (ruaj khov dua thiab raug dua)
Β Meter Version II (ruaj khov dua thiab raug dua)

www.instructables.com/id/Beta-Meter/The version I β meter tau nyob ntsiag to tab sis qhov chaw tam sim no tsis tas li nrog cov hluav taws xob nkag (Vcc).

Version II β meter yog qhov ruaj khov xws li., Tus nqi tam sim no tsis hloov pauv ntau nrog kev hloov pauv hloov hluav taws xob (Vcc).

Kauj Ruam 1: Qhov txawv ntawm Version I thiab II yog dab tsi?

Qhov txawv ntawm Version I thiab II yog dab tsi?
Qhov txawv ntawm Version I thiab II yog dab tsi?

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Version II ua haujlwm ntawm thaj tsam tawg, qhov nkhaus ntau dua nyob hauv thaj tsam tawg xws li., Muaj peev xwm poob thoob plaws diode tsis hloov pauv ntau nrog kev hloov pauv tam sim no los ntawm nws. Ua kom ntseeg tau tias cov diode nyob hauv thaj tsam tawg rov qab tsis ncaj ncees tam sim no dhau ntawm diode yuav tsum yog yam tsawg 5mABy kvl yooj yim peb tau txais R1 = 540 Ω. Qhov no yuav yog tus ciam teb taw tes hauv cheeb tsam puas ntsoog. Peb coj R1 = 330Ω rau lub diode kom nyob hauv thaj tsam tawg tag.

2. Qhov Biasing Dc taw tes ntawm transistor thib ob kuj sib txawv tam sim no peb tab tom ua haujlwm ntawm ib = 1 uA thiab Rc = 1 KΩ, Tsis yog ib = 10 uA, Rc = 100 Ω. Qhov laj thawj rau qhov ua qhov no % kev hloov pauv hauv qhov chaw tam sim no nrog Vcc yog qhov tas li yog li xaiv qhov tsawg dua ib tus nqi yuav muab qhov hloov pauv tsawg dua hauv ib.

Kauj Ruam 2: Daim duab Circuit Court

Daim duab Circuit Court
Daim duab Circuit Court

Kev xaiv R2 yog ua tiav los ntawm kev suav qhov muaj peev xwm sib txawv ntawm R2 uas yog qhov tas li yog li tam sim no yuav tsum ntws los ntawm R2, tus nqi ntawm R2 yuav txiav txim siab tus nqi tam sim no.

Koj yuav pom cov lus teb ntawm no:

set ib = 1uA and get R2

Txawm hais tias kev sim ua tus nqi R2 los siv yuav txawv me ntsis dua li qhov suav, vim yog kev ua siab ntev hauv cov neeg tawm tsam.

Kauj Ruam 3: 1uA Qhov Chaw Tam Sim No

1uA Qhov Chaw Tam Sim No
1uA Qhov Chaw Tam Sim No

Noj R2 kom nyob ib puag ncig 2.7mΩ ntawm 5 V (Vcc) Kuv tau txais qhov tam sim no ntawm 1 uA. Tus nqi no txawv ntawm 0.9 uA txog 1.1 uA yog Vcc txawv ntawm 3.5V txog 15V. Lub Circuit Court tsis ua haujlwm qis dua 3.5 V vim tias qis dua qhov hluav taws xob no diode yuav tsis nyob hauv thaj tsam tawg.

Kauj ruam 4: Β = 264

Β = 264
Β = 264

Lub peev xwm hla R3 yog ntsuas hauv mV, 256mV yog nyeem ntawv, qhov no yog β tus nqi ntawm npn transistor.

Kauj ruam 5: Ua

Kauj Ruam 6: Qhia

Link for Lab report:

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