Day 10 03/26/2015 Inverting Voltage Amplifier

At the first we have talked about the diff Vout 

Then we talk about the more function amplifier which is a simple operational amplifier-based circuit.

At this one we discover the inside of Op-amps and know the Rin will be much smaller than Rout and the ratio of v source and v out will be the ratio of its resistor next to 

Since Vo is 20 k  and Vs is 10 k  the ratio of Vo and Vs is around 2

Also remember the 5 components of circuit

• Diode
• Current Supply
• Voltage supply
• Resistor 
• Transistor

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Another Practice of Op-amps

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Inverting Voltage Amplifier

First this is what we circuit we are using for replace the one on the lab book

And Vout = R1/R2 Vin by we know the Vout and Vsource is base on the ratio of resistance.

To understand the Op-Amps we need to know what its each connection means and in here we use 

• inverting input 2 connect to R1 = 2k
• non-inverting input to ground and R2
• -V supplied by -5V
• +V supplied by +5V
• output by R2

Then we measured

Vout = 3.71 V and Vin=1.73V by plug into Vout = (R1/R2) Vin the Vout is 3.7 V

Here comes the graph that when Vin change and the graph compare Vout vs Vin

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The ratio of voltage is depend on its resistance

If the Op-amp its resistor is zero

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