User kile - Electrical Engineering Stack Exchange

4 votes

4 answers

2k views

Why do MATLAB and LTspice give me different results for a band-pass filter?

asked Oct 6, 2022 at 11:47

4 votes

1 answer

152 views

What's wrong with my FET transfer function?

asked Jan 16 at 17:41

3 votes

1 answer

196 views

Why is my LTspice simulation so different from my calculation by hand?

asked Feb 6 at 15:59

3 votes

1 answer

244 views

Failed to simulate active current mirror in LTspice

asked Dec 24, 2023 at 20:09

3 votes

1 answer

97 views

LTspice gives me strange wave form when I choose from 9.995s to 10s

asked Feb 14, 2023 at 17:31

3 votes

0 answers

123 views

How can I find \$A \beta \$ step by step? [closed]

asked Mar 14 at 10:13

2 votes

1 answer

90 views

What's the output impedance of this circuit?

asked Mar 16 at 11:42

2 votes

1 answer

117 views

What voltage should I choose in in order to make sure all transistor are in saturation in LTspice?

asked Mar 18 at 21:04

2 votes

1 answer

115 views

How can you tell whether it's either voltage-current or voltage- voltage feedback?

asked Jun 10 at 8:31

2 votes

1 answer

103 views

Why did I get different simulation results for the same transistor model in LTspice?

asked Jul 14 at 8:50

2 votes

4 answers

744 views

Complex number or absolute number for impedance

asked Mar 20, 2023 at 19:25

2 votes

2 answers

374 views

Is it possible to use one voltage source for an op-amp?

asked Dec 17, 2022 at 10:37

2 votes

2 answers

380 views

Is I2C ack bit supposed to be one when it's reading data? Why is my ack bit different from TI doc (Understanding the I2C Bus)

asked Nov 9, 2023 at 14:22

2 votes

1 answer

77 views

SDA has to wait around one second to go high when reading hex is 0xF8

asked Nov 28, 2023 at 19:31

2 votes

1 answer

137 views

How is CMOS impedance calculated?

asked Nov 29, 2023 at 9:11

2 votes

1 answer

248 views

Calculate the small-signal voltage gain of the circuit

asked Jan 2 at 8:53

2 votes

1 answer

118 views

Calculate the output IP3 of this transmitter

asked Jan 8 at 21:06

2 votes

2 answers

360 views

Replacing MOS parasitic cap with external cap. Why does it differ from internal?

asked Feb 17 at 15:35

2 votes

1 answer

176 views

How to eliminate other possible solutions when doing DC analysis of Analog CMOS

asked Jan 26 at 20:10

2 votes

1 answer

82 views

How can I have LTspice display more digits with .op command?

asked Feb 9 at 11:05

2 votes

1 answer

120 views

Why do these two NMOS frequency responses give significant differences in LTspice simulation?

asked Feb 10 at 21:07

2 votes

1 answer

164 views

What is the feedback \$\beta\$ for this resistor feedback?

asked Feb 11 at 9:24

1 vote

2 answers

176 views

How to analyse this with nullor block?

asked Feb 11 at 16:39

1 vote

1 answer

164 views

Where am I wrong in understanding feedback network?

asked Jan 12 at 13:26

1 vote

2 answers

147 views

Is feedback positive or negative for this closed-loop circuit?

asked Jan 13 at 21:53

1 vote

0 answers

121 views

Having trouble simulating a two-stage differential amplifier in LTspice

asked Jan 16 at 12:24

1 vote

2 answers

154 views

How to calculate the feedback loop gain with feedback \$\beta\$

asked Mar 6 at 8:41

1 vote

0 answers

90 views

why is my analysis for this resistor \$R_F\$ feedback network different from the book answer?

asked Feb 7 at 18:35

1 vote

0 answers

73 views

Is this loop gain infinite?

asked Mar 13 at 19:41

1 vote

1 answer

97 views

M1 and M3 are connected in OTA, but in (a) they are separated. The author thinks they're equivalent. Why?

asked Dec 20, 2023 at 17:47

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109 Questions

Why do MATLAB and LTspice give me different results for a band-pass filter?

What's wrong with my FET transfer function?

Why is my LTspice simulation so different from my calculation by hand?

Failed to simulate active current mirror in LTspice

LTspice gives me strange wave form when I choose from 9.995s to 10s

How can I find \$A \beta \$ step by step? [closed]

What's the output impedance of this circuit?

What voltage should I choose in in order to make sure all transistor are in saturation in LTspice?

How can you tell whether it's either voltage-current or voltage- voltage feedback?

Why did I get different simulation results for the same transistor model in LTspice?

Complex number or absolute number for impedance

Is it possible to use one voltage source for an op-amp?

Is I2C ack bit supposed to be one when it's reading data? Why is my ack bit different from TI doc (Understanding the I2C Bus)

SDA has to wait around one second to go high when reading hex is 0xF8

How is CMOS impedance calculated?

Calculate the small-signal voltage gain of the circuit

Calculate the output IP3 of this transmitter

Replacing MOS parasitic cap with external cap. Why does it differ from internal?

How to eliminate other possible solutions when doing DC analysis of Analog CMOS

How can I have LTspice display more digits with .op command?

Why do these two NMOS frequency responses give significant differences in LTspice simulation?

What is the feedback \$\beta\$ for this resistor feedback?

How to analyse this with nullor block?

Where am I wrong in understanding feedback network?

Is feedback positive or negative for this closed-loop circuit?

Having trouble simulating a two-stage differential amplifier in LTspice

How to calculate the feedback loop gain with feedback \$\beta\$

why is my analysis for this resistor \$R_F\$ feedback network different from the book answer?

Is this loop gain infinite?

M1 and M3 are connected in OTA, but in (a) they are separated. The author thinks they're equivalent. Why?