ENGR44 Yunfei Pan

Passive RL Circuit Natural Response Overview: In this lab assignment, we will examine the natural response of a simple RL circuit. We will use both a manual switching operation and a square wave voltage source to create our circuit’s natural response. We will see that the method used to create the response affects the circuit being measured. For the single cycle, since it's too fast to measure.

Passive RC Circuit Natural Response Overview:  In this lab assignment, we will examine the natural response of a simple RC circuit. We will use both a manual switching operation and a square wave voltage source to create our circuit’s natural response. We will see that the method used to create the response affects the circuit being measured. The RC we got have a very large offset, so no conclusion on this one.

Difference Amplifier Overview:   In this assignment, we implement a simple operational amplifier-based circuit. Since operational amplifiers are used commonly in circuits used to implement mathematical operations, we implement the process of taking the difference between two voltages. The theoretical Vo for this circuit is Vo=Vb-Va Data collection From the data we collected, the equation is confirmed, the error is mostly caused by the uncertainty of the resistance we use.

Non-inverting Voltage Amplifier Overview: In this assignment, we implement a simple operational amplifier-based circuit. Since operational amplifiers are used commonly in circuits used to implement mathematical operations, we implement the process of multiplication by a positive constant. Vo/Vi=3 The circuit we made According to the data we collected, We do get a positive ratio. since we have a large ratio of 3, the op amp can easily trigger to the highest or lowest limit.

Inverting Voltage Amplifier In this assignment, we implement a simple operational amplifier-based circuit. Since operational amplifiers are used commonly in circuits used to implement mathematical operations, we implement the processes of multiplication by a negative constant. R1=10 kΩ R2= 20 kΩ Vo/Vi=-R2/R1=-2 Data collection The ratio is -1.93 which is close to -2 we calculated. The error may caused by the uncertainty of the resistant and the power lose by the op amp.