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�쉶濡쒖씠濡� Pspice �꽕怨� 怨쇱젣 理쒖쥌蹂닿퀬�꽌
1. 紐⑺몴�꽕�젙
- 1李� RC�쉶濡쒕�� �궗�슜�빐�꽌 cutoff frequency媛� 100Hz�씤 low pass filter瑜� �꽕怨꾪븯怨� �떆裕щ젅�씠�뀡 諛� �떎�뿕�쓣 �넻�빐�꽌 寃�利앺븯�씪.
2. 遺꾩꽍 諛� �빀�꽦
�쉶濡� 1 RC low-pass filter�쓽 湲곕낯 �쉶濡�
(1) low pass filter
low pass filter�뒗 �옉��� 二쇳뙆�닔瑜� 媛뽯뒗 �떊�샇留뚯쓣 異쒕젰�쑝濡� �넻怨� �떆耳� 二쇰뒗filter.
(2) R媛�, C媛� 寃곗젙
�쉶濡�2 �럹�씠���濡� �몴�떆�븳 �쉶濡쒕룄
Vout瑜� V1�뿉 ����븳 �떇�쑝濡� �꽭�썙蹂대㈃ Vout = V1�씠 �릺怨� �젙由ы븯硫� Vout=Vi媛� �맂�떎. �뿬湲곗꽌 Vout/Vi = H(jw)�뒗 network function�씠硫� network function�쓣 w�쓽 �븿�닔濡� 蹂대㈃ frequency response媛� �맂�떎.
|Vout|=|H(jw)|*|V1|�뿉�꽌 異쒕젰�쓽 �겕湲곕뒗 �엯�젰�쓽 �겕湲곗�� |H(jw)|�쓽 怨깆쑝濡� 寃곗젙 �릺誘�濡� |H(jw)|�쓽 媛믪씠 w�뿉 �뵲�씪�꽌 蹂��븯誘�濡� 異쒕젰�쓽 �겕湲곕룄 w�뿉 �뵲�씪�꽌 蹂��븳�떎. �뵲�씪�꽌 |H(jw)|�쓽 媛믪���씠 �릺�뼱 |H(jw)|�쓽 媛믪쓣 鍮꾧탳�빐�꽌 異쒕젰�쓽 �겕湲곕�� 鍮꾧탳�빐 蹂몃떎.
|H(jw)|�떇�쓣 蹂대㈃ w�쓽 媛믪뿉�뵲�씪 蹂��솕�븯�뒗�뜲 w媛� 0�씠硫� 1�씠 �릺�뼱 理쒕��媛믪씠 �릺怨� w媛믪씠 而ㅼ쭏�닔濡� |H(jw)|��� 媛먯냼�븯�뒗 寃껋쑝濡� 蹂� �닔 �엳�떎. 洹몃━怨� cutoff 二쇳뙆�닔媛� 100Hz�씠誘�濡� 100Hz�뿉�꽌 |異쒕젰�쓽 �겕湲곕뒗 |H(jw)|�쓽 理쒕��媛믪뿉1/諛곌�� �릺�뼱�꽌 =1/媛� �맂�떎 �뵲�씪�꽌 R怨� C�쓽 媛믪쓣 援ы븷 �닔 �엳�떎.
cutoff�씪 �븣 二쇳뙆�닔瑜�|H(jw)|�떇�뿉 ����엯�븯�뿬 R怨� C�쓽 媛믪쓣 援ы빐蹂대㈃ w=2��f=200��媛� �릺怨� = 1/ �씠誘�濡� RC=1/w = 1/200�� = 0.0xxx�씠 �맂�떎 . �뵲�씪�꽌 R怨� C�쓽 怨깆�� 0.0xxx�씤 �쉶濡쒕�� �꽕怨� �븯硫� �맂�떎.
3. �젣�옉 諛� �떆�뿕
0���(�깮�왂)
(1) �쐞�쓽 �떆裕щ젅�씠�뀡 寃곌낵瑜� �넗���濡� 洹몃┝1怨� 媛숈�� �쉶濡쒕�� 吏곸젒 援ъ꽦�븳�떎.
洹몃┝4 1kHz
洹몃┝ 5 low-pass filter�쓽 二쇳뙆�닔 �쓳�떟
6. 李멸퀬臾명뿄
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