전기전자응용실험 Chapter 5 Timer & Audio Amp. Pre-report
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- 2012.08.05
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- 2012.04
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소개글
2012년 1학기 전기전자응용실험 보고서입니다. 전부 다 영어로 작성되어 있으며, 예비보고서의 경우 주석 충분히 달려 있습니다. 베끼지 않고 작성하여, 이 자료를 쓰셔도 Cheating의 염려가 없습니다.
목차
1. Timer
1) Monostable operation.
2) Astable operation
3) Missing-Pulse Detector
4) Frequency divider
2. Audio Amp.
3. Reference
본문내용
1. Timer
① Refer to the datasheet of LM555 and design a circuit that satisfies the circuit specifications listed in 6.1 using PSPICE program. Use 555D component.
There is not LM555, but 555D element in PSPICE program. Thus 555D was used in this schematics alternatively. The source voltage(Vcc) 5V can be obtained from output of regulator. Since 555D is operated as pulse width modulation, it should be considered the peak voltage of sinusoidal wave, not any changes about R and C values.
The result of simulation is Vp=3.85V, freq=3.577kHz.
② Refer to the datasheet of LM555 and research various functions of the device other than pulse width modulation and pulse position modulation.
1) Monostable operation.
When TRIG voltage goes lower than the trigger threshold, monostable operation is initiated.
참고 자료
Datasheet of LM555, LM386, TDA2030
http://www.fairchildsemi.com
http://en.wikipedia.org/wiki/timer
