My pleasure. Thank you for encouraging comment. Glad that you liked this Analog Computer circuit. Here are few more examples: Analog Logarithm Computer with Op Amp th-cam.com/video/RpKEq5WyoLg/w-d-xo.html Analog Exponential (Anti-Log) computer th-cam.com/video/kk2c7Gk3nW4/w-d-xo.html Analog Multiplier Circuit (4-quadrant) th-cam.com/video/VP53A2zpVMQ/w-d-xo.html I hope these videos are interesting as well. 🙋♂️
This is a fascinating circuit. How wide of a result voltage rail can you do if you tried with wide op amps? Will the circuit do negative voltage power as a division fraction?
Thank you. Glad that you liked this circuit. You can try larger voltage rail valued as large as Op Amp and NPN BJT transistors can properly operate. And yes, negative power also works as long as abs(Ln(V1))
Excellent Video.... very very interesting... I could never have figured this out... I can do a multiplication circuit... raised to the power... absolutely not.... cheers !
You're welcome. Glad that you liked this circuit video. As a special case when voltage V2 is constant, this unique circuit can also realizes signal to power n. 🙂
Analog Power Raiser is an Analog Computer that raises one input signal to the power of another input signal. For more Analog Computer & Op Amp Circuit examples: Analog Logarithm Computer with Op Amp th-cam.com/video/RpKEq5WyoLg/w-d-xo.html Analog Exponential (Anti-Log) computer th-cam.com/video/kk2c7Gk3nW4/w-d-xo.html Analog Multiplier Circuit (4-quadrant) th-cam.com/video/VP53A2zpVMQ/w-d-xo.html Analog Computer to Raise Signal to power n th-cam.com/video/IUTlBH1UraE/w-d-xo.html Analog Computer: Signal Division Calculator th-cam.com/video/2axI5l3cf6c/w-d-xo.html Op Amp Analog Computer Differential Equation Solver: th-cam.com/video/ENq39EesfPw/w-d-xo.html For more analog signal processing examples see: th-cam.com/play/PLrwXF7N522y4c7c-8KBjrwd7IyaZfWxyt.html I hope these Circuit design and analysis videos are helpful.
I'm sorry I didn't do these calculations for years and I understand that you operate with approximate values but it still puzzles me how did you go straight from tempco to resistance value? Isn't it the proper formula: (1 + 3.5 * 10e-3 * delta T) * R?
@voice4voicelessKrzysiek No Problem. Yes, starting from the formula TempCo Resistance = (1 + 3.5 * 10e-3 * delta T) * R = (1 + 3.5 * 10e-3 * (T-300) ) * 1kohm = (1 - 3.5*10e-3 *300 + 3.5 * 10e-3 * T ) * 1kohm that then simplifies to (1 - 1 + 3.5 * 10e-3 * T ) * 1kohm = 3.5 * 10e-3 * T ) * 1kohm and therefore TempCo Resistance = 3.5*T where T is the Temperature in degree Kelvin. I hope this explanation is helpful.
Thanks for your great work , keep spreading the word.
My pleasure. Thank you for encouraging comment. Glad that you liked this Analog Computer circuit. Here are few more examples: Analog Logarithm Computer with Op Amp th-cam.com/video/RpKEq5WyoLg/w-d-xo.html
Analog Exponential (Anti-Log) computer th-cam.com/video/kk2c7Gk3nW4/w-d-xo.html
Analog Multiplier Circuit (4-quadrant) th-cam.com/video/VP53A2zpVMQ/w-d-xo.html
I hope these videos are interesting as well. 🙋♂️
Intresting! Thanks
You are welcome! Glad that you liked this interesting Analog Computer :)
This is a fascinating circuit. How wide of a result voltage rail can you do if you tried with wide op amps?
Will the circuit do negative voltage power as a division fraction?
Thank you. Glad that you liked this circuit. You can try larger voltage rail valued as large as Op Amp and NPN BJT transistors can properly operate. And yes, negative power also works as long as abs(Ln(V1))
Excellent Video.... very very interesting... I could never have figured this out...
I can do a multiplication circuit...
raised to the power... absolutely not.... cheers !
You're welcome. Glad that you liked this circuit video. As a special case when voltage V2 is constant, this unique circuit can also realizes signal to power n. 🙂
Analog Power Raiser is an Analog Computer that raises one input signal to the power of another input signal. For more Analog Computer & Op Amp Circuit examples:
Analog Logarithm Computer with Op Amp th-cam.com/video/RpKEq5WyoLg/w-d-xo.html
Analog Exponential (Anti-Log) computer th-cam.com/video/kk2c7Gk3nW4/w-d-xo.html
Analog Multiplier Circuit (4-quadrant) th-cam.com/video/VP53A2zpVMQ/w-d-xo.html
Analog Computer to Raise Signal to power n th-cam.com/video/IUTlBH1UraE/w-d-xo.html
Analog Computer: Signal Division Calculator th-cam.com/video/2axI5l3cf6c/w-d-xo.html
Op Amp Analog Computer Differential Equation Solver: th-cam.com/video/ENq39EesfPw/w-d-xo.html
For more analog signal processing examples see: th-cam.com/play/PLrwXF7N522y4c7c-8KBjrwd7IyaZfWxyt.html
I hope these Circuit design and analysis videos are helpful.
I'm sorry I didn't do these calculations for years and I understand that you operate with approximate values but it still puzzles me how did you go straight from tempco to resistance value? Isn't it the proper formula: (1 + 3.5 * 10e-3 * delta T) * R?
@voice4voicelessKrzysiek No Problem. Yes, starting from the formula TempCo Resistance = (1 + 3.5 * 10e-3 * delta T) * R = (1 + 3.5 * 10e-3 * (T-300) ) * 1kohm = (1 - 3.5*10e-3 *300 + 3.5 * 10e-3 * T ) * 1kohm that then simplifies to (1 - 1 + 3.5 * 10e-3 * T ) * 1kohm = 3.5 * 10e-3 * T ) * 1kohm and therefore TempCo Resistance = 3.5*T where T is the Temperature in degree Kelvin. I hope this explanation is helpful.
@@STEMprof Yeah, thank you, I got it. Losing my agility in mathematical thinking in my old age 🤣
Glad that the explanation is helpful. 🙋♂️
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