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https://designers-guide.org/forum/YaBB.pl Design >> Analog Design >> Integrator circuit voltage problem https://designers-guide.org/forum/YaBB.pl?num=1328283016 Message started by singh on Feb 3rd, 2012, 7:30am |
Title: Integrator circuit voltage problem Post by singh on Feb 3rd, 2012, 7:30am Hello, i am using shown integrator in a circuit which has two phase. after 1st phase of the circuit is over, the integrator has some output (say 0.3 mV) .in the beginning of second phase , i need to provide the negative of output voltage (say -0.3 mV) to the input of integrator. how can i provide the -ive output voltage to input? is it possible to use a switch and by flipping the capacitor C1 and C2 position or just by changing their polarity using switch? |
Title: Re: Integrator circuit voltage problem Post by raja.cedt on Feb 3rd, 2012, 9:58am hello singh, you forgot some input capacitor i guess, are you sure about the schematic? Thanks. Raj. |
Title: Re: Integrator circuit voltage problem Post by thomasT on Feb 3rd, 2012, 10:18am wat is this |
Title: Re: Integrator circuit voltage problem Post by singh on Feb 3rd, 2012, 10:39am schematic is not complete.. i just wanted to know if the polarity of feedback caps is reversed by using a switch , can i feed output with negative value to the input |
Title: Re: Integrator circuit voltage problem Post by raja.cedt on Feb 3rd, 2012, 11:06am no ..it's proper polarity |
Title: Re: Integrator circuit voltage problem Post by thechopper on Feb 7th, 2012, 8:39pm Hello singh, not sure why you need to provide the negative of the output at the input of the integrator during the second phase, but for sure you cannot simply switch the feedback caps, since then you will not be holding the info from the first clock phase anywhere. You need additional caps to perform the action you are requiring. Best Tosei |
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