Chapter 5(pre)
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- 2011.04.04
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- 2010.03
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< Chap. 5 >
Name : Kim Hyun Duk
I.D. : 2008142245
Depart : EE.Engeeniring.
▶ Economical battery tester circuit
① Explain the mechanism of Economical battery tester
Battery tester is used to analyse the specific state of battery.
The experiment`s purpose is that confirm the state of battery by connecting on V1.
When battery connect in V1, capacitor`s voltage is charged, then current can flow through transistor after passing through the R3 and LED.
② Analyze the elements of Economical battery tester and its circuit system.
1) Explain the quality difference in accordance with capacitor.
At voltage level of a battery is enough high, the more capacitance of capacitor, the more increase the charge which is charged at .
So the time that light is turned on is increases.
2) Applying the characteristics of transistor, explain the mechanism of circuit system.
A transistor is a semiconductor device used to amplify and switch electronic signals.
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