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Microelectronic Circuits I (Quiz 1) date: 2008/10/17 (Fri) time: 14:20~15:10 1. (50%) The circuit is in Fig.1. (a) Find the resistances looking into node V 1 , R 1 ; node V 2 , R 2 ; node V 3 , R 3 ; and node V 4 , R 4 . (b) Find the currents I 1 , I 2 , I 3 , and I 4 in terms of the input current I. (c) Find the voltages V 1 , V 2 , V 3 , and V 4 in terms of (IR). 2R R R/3 R/2 I R R Ideal 0V 4 I 3 I 2 I 1 I R 1 R 2 4 R R 3 V 2 1 V V 3 V 4 Fig. 1 R/2 2. (50%) Derive the transfer function of the circuit in Fig.2 (for an ideal op amp) (a) show that it can be written in the form ] 1 [ ] 1 [ 2 1 1 2 ϖ j j R R V V i O + ×

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Unformatted text preview: +-= , Where 1 1 1 1 R C = and 2 2 2 1 R C = . Assuming that the circuit is designed such that 1 2 , find approximate expressions for the transfer function in the following frequency regions: (b) 1 < < (c) 2 1 < < < < (d) 2 (e) If 2 1 , find an approximate expression for the transfer function in the frequency range of 1 2 < < < < . (50%) R 1 Fig. 2 R 2 C 2 C 1 V i V O...
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## This note was uploaded on 02/21/2012 for the course EE 101 taught by Professor 張捷力 during the Spring '07 term at National Taiwan University.

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97ä¸Šé›»å­å­¸ä¸€ç¬¬&aum

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