Carl
A quiet enigma. We don't know anything about Carl yet.
Posts
See all 20 »According to Signal processing and linear systems by Lathi, the transfer function $H(j\omega)$ does not exist for systems with poles in the RHP: - This makes sense to me, since $H(j\omega) = \fr...
3 answers · posted 4y ago by Carl · edited 3y ago by Lorenzo Donati
I have built an ECG amplifier that uses an instrumentation amplifier and a driven right leg circuit to attenuate 50 Hz common mode voltage stemming from the body. A portion of the circuit is seen b...
I am an electrical engineering student and I just finished designing an ECG-amplifier circuit. Here is the schematic: - It is fairly simple. Initially, there is a 1st order highpass filter. Then...
1 answer · posted 3y ago by Carl · last activity 3y ago by Olin Lathrop
I am using the AD620 as instrumentation amplifier to amplify the body's ECG signal. An ECG is a differential signal (measured with two electrodes) and I want a differential gain of Gd=1000 . The ...
3 answers · posted 3y ago by Carl · last activity 3y ago by TonyStewart
Homework problem A MOSFET has a power dissipation of $P_{d} = 10\text{W}$. The MOSFET is mounted on a heatsink. There is an isolation pad between the MOSFET case and the heatsink. We are given t...
1 answer · posted 4y ago by Carl · edited 3y ago by Lorenzo Donati
I have the following problem: - Using Wikipedia I find that during CCM we have the relation: - $$\frac{V_{out}}{V_{in}} = -\frac{D}{1-D} $$Solving for $D$ and inserting values gives me $$D...
2 answers · posted 4y ago by Carl · edited 3y ago by Lorenzo Donati
When I program STM32 microcontrollers I use ST's toolchain which provides all the tools necessary in order to build (and flash) the application binary. The toolchain also comes with ST's own librar...
3 answers · posted 28d ago by Carl · last activity 23d ago by Olin Lathrop
What does it mean for signals to have impedance? To me, impedance is kinda like an "extended resistance" that also includes phase shift $$Z = R + jX $$It makes sense to me that components like cap...
3 answers · posted 3y ago by Carl · last activity 3y ago by TonyStewart
When recording an ECG signal, the raw signal is taken from the body and sent into an ECG amplifier to amplify the signal to a suitable range and remove common mode and other types of noise. Measur...
1 answer · posted 3y ago by Carl · edited 3y ago by Lorenzo Donati
How do I handle errors in my embedded system? I have learned that it is a de facto standard for driver functions to return an error code that reveals if the function fulfilled its main purpose or i...
2 answers · posted 21d ago by Carl · last activity 20d ago by Olin Lathrop
I recently read the accepted answer here, by Olin Lathrop: Decoupling caps, PCB layout It talks about preventing an IC from acting as a center fed patch antenna by keeping the high frequency curre...
1 answer · posted 11mo ago by Carl · last activity 11mo ago by Olin Lathrop
