analog circuit

Hello All, I'm new to this forum. I have come across a universal IO controller from a reputed brand. While studying the circuit, I came across the Universal Analog IO circuit(Supposedly) which can output 4-20mA and 0-10V from the same pin. The circuit looks simple but I'm unable to analyze the...

I was reading this discussion - Interlock Discussion, because I want to design a Half Bridge MOSFET driver, with interlock. I recreated both the circuits in LTspice that were recommended The logic I want is - In1 In2 Op 0 0 both OFF 1 0 Up MOS ON, BOT MOS OFF 0...

Hi everyone, I come accross to learn to design in submicron wiht cadence virtuoso with the process technology (12nm<L<180nm). as I am a guy who likes to do hand calculation and estimate before simulation, I got struck how the square law model does not provide any resulte that make sense with the...

I have designed a 2nd-order Sallen-Key filter with a 3 kHz cutoff frequency using the OPA4863PWR. I wanted to check whether, similar to ideal vs practical integrators, there are any non-ideal effects that need to be considered here. Specifically, do factors such as finite gain-bandwidth, slew...

Hi There! I tried to make a DIY circuit to convert the modern ECU 5v pulse of RPM for my VW GOLF-2 which upgraded to GOLF-4 engine to the original 12v analog tachometer with the most known circuit of a relay coil, resistor and couple of diodes but it failed after 2000 RPM, it drops to zero when...

Hello everyone, I am learning the feedback topologies for 2-port network as we have: -basic amplifier that is represented by 2-port network. -feedback amplifier that is also represented by 2-port network. There is a reference is in the link : feedback topology page 20 and up. My question why on...

You are provided with a 230 V / 50 Hz ac supply, a 6-0-6 centre-tapped transformer and a BJT of dc current gain 150. Biasing the transistor using a supply of 5.6 V (develop your own), (i) design an amplifier of voltage gain 200 i have designed could anyone correct me design as follows Av=200...

general qn how will the circuit act to this will d1 be open ckted can anyone help i am using oa79 diode breakdown is .3

I am learning to design circuits using gm/ID lookup tables and I now try to design Miller OTA but I am no sure how to start. I have set myself parameters that I should strife to like: GBW, SR, CL. I first start with determining: \[ C_S = 0.22C_L \] \[ gm_{m12} =2\pi GBW C_L \] Here is my first...

Hello, I am working on my Design AM transceiver system project. In this project, we are prohibited from using other integrated circuits except for the 555 integrated circuit. In this case, how can I do signal modulation and demodulation without using opamps and similar integrated circuits?

I know that ladder filter existed for a while before Bob Moog was a student. I know that he patented his design of ladder type filter. I know that multiple manufacturers were either ripping off his patented design or building very close visually at least own variants. What I do not know is why...

Nothing’s more frustrating than building an analog circuit and getting unexpected noise messing with your signals. Whether it's hum, interference, or random glitches, noise can be a real headache. Here are some practical tips to keep it under control: Keep Your Grounding Clean – A poor...

Hi everyone, I used to calculate the LCL filter transfer theoritically and use LTspice to simulate in time and frequency domain. when I simulate in the time domaine, I get a distorted sinewaveat te output!! I am confused as why? because I have only passive component and the bode plot seems...

"This schematic is for a lead-acid battery charger circuit. I've set up this circuit, but it's only charging at about 15 milliamps. Can anyone help me troubleshoot this problem? By the way, all component values are according to the schematic, except I used a 13-volt transformer instead of a...

Hello, all, I'm just beginning to learn about designing practical filter circuits. Using tools like Elsie, I think I can choose the components sizes for filters. However, I don't know how to size the components for the expected amperage (to choose the wire size for hand-wound inductors) or...

Hey guys, I'm looking for a circuit that generates -5V from a +5V signal from a microcontroller to open and close a depletion mode n channel-mosfet. I figured this could be done with transistors/solid-state devices but I'm stuck and would appreciate some help with this I'm looking for a...

I'm looking into a way to construct a circuit that can generate ~200MHz negative voltage sine waves (8 channels), where there is 11 degrees of phase offset between the channels (0 deg, 11 deg, 22 deg, ...). I would like to be able to adjust the frequency, phase offset and possibly amplitude of...

Hi, My requirement is that I have an input of 10VC to 32VDC and I have to design a power supply that can convert the said input to 12VDC with a capability of sustaining load of 310mA minimum. As i am looking for a cost effective solution it will require me to design a discreet buck boost...