Battery Tester and Charging Circuit Analysis

소개글

연세대학교 전기전자기초실험 예비 래포트입니다. 누구한테 준 적 없는 자료이구요 ~ A0 받았습니다 ~~

목차

① Explain the mechanism of Economical battery tester

② Analyze the elements of Economical battery tester and its circuit system.
1)Explain the quality difference in accordance with capacitor.
2)Applying the characteristics of transistor, explain the mechanism of circuit system.
3) Explain the difference in accordance with resistance ratio.

③Explain the mechanism of Auto battery charging circuit.

④Analyze the elements of Auto battery charging circuit and its circuit system.
1)Explain the role of LED1, LED2.
2)Apply analysis of SCR to circuit.
3)Analyze of the behavior of zener diode depending on its characteristics.
4)Explain the role of R5.
5)Explain the role of D3.
6)Explain the role of other elements and devices.

본문내용

2)Apply analysis of SCR to circuit.
If an SCRs gate is left floating, it behaves exactly as a Shockley diode. It may be latched by breakover voltage or by exceeding the critical rate of voltage rise between anode and cathode, just as with the Shockley diode. Dropout is accomplished by reducing current until one or both internal transistors fall into cutoff mode, also like the Shockley diode. However, because the gate terminal connects directly to the base of the lower transistor, it may be used as an alternative means to latch the SCR. By applying a small voltage between gate and cathode, the lower transistor will be forced on by the resulting base current, which will cause the upper transistor to conduct, which then supplies the lower transistors base with current so that it no longer needs to be activated by a gate voltage. The necessary gate current to initiate latch-up, of course, will be much lower than the current through the SCR from cathode to anode, so the SCR does achieve a measure of amplification.

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