Page 24 - eAD113_電子學含實習

ཥɿኪўྼ୦€ɪ

範例 6

Դ͜ 1j1 ઞಏ಻᎖ଟމ 40Hz ˲ѩ˙࣬࠽މ 4.24V ٙʹݴཥd

ͪتኜɪᜑͪٙتҖνྡהͪdϤͪتኜٙ˥̻ՍܓၾٜۧՍ
ܓʱйމc(A) 2ms/DIVd2V/DIVc(B) 5ms/DIVd2V/DIVc

(C) 5ms/DIVd1V/DIVc(D) 4ms/DIVd1V/DIVf

༆ B
1 1
(1) T = = = 25ms
f 40Hz

25
͟׵༈ָ͍تɓ඄ಂ̕ 5 ࣸ€DIVdה˸˥̻Սܓໄ׵ = 5 ms/DIVf
5
(2) ༈ָ͍تٙѩ˙࣬࠽މ 4.24Vdה˸Չࢤ࠽މ 4.24 × 2 ≈ 6(V)d

͟׵تҖ̕ 3 ࣸ€DIVd݂ٜۧՍܓඐໄ׵ 6/3 = 2 V/DIVf

範例 7

νྡהͪd፩̈تҖٙ᎖ଟၾࢤ࿁ࢤ࠽ཥᏀމ

(A) 10kHzd6V (B) 50kHzd6V

(C) 10kHzd3V (D) 50kHzd3Vf
༆ A
HOR：0.02 ms/DIV
تҖɓ඄Ϟ 5 DIVdϾՉࢤ࿁ࢤ࠽Ϟ 3 DIVf VER：2V/DIV
(1) ඄ಂ T = 5 DIV × 0.02ms/DIV = 0.1ms

1 1
᎖ଟ f = = = 10kHzf
T 0.1ms
(2) V o(p-p) = 3 DIV × 2V/DIV = 6(V)f

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