Questions tagged [circuit-design]
The process of creating a circuit to accomplish a particular task. When designing a circuit, one should consider how it should work, the target specifications, efficiency, cost effectiveness, code compliance, and ethics.
4,852 questions
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V-I converter for generating a current waveform for transmitting data wirelessly with a coil
I have been working on a project of mine that converts a waveform (PWM, saw, triangle) from a MCU and converts this to an equivalent current (V-I). I want to use this current waveform to generate a ...
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Headphone out circuit design
I'm working on a circuit for audio output from a Teensy 4.1 using as PCM5100 I2S DAC and a TPA6111 amp.
I'm wondering if the circuit, specifically the headphone out (circuitry around U23) looks viable....
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PNP BJT transistor for switching and sourcing to IC
My project requires the use of a NE555, which turns on and starts operating when a 3-position switch is either up or down (not in neutral).
To do this, I am using an OR-gate (no problems here) and a ...
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Do I need isolation between Arduino, IR2101, and a 24V MOSFET stage?
I am designing a high-side/low-side MOSFET drive using the IR2101.
My setup has three different supply domains:
Arduino:
Provides HIN and LIN signals (5V logic)
Referenced to GND
IR2101 Gate Driver:
...
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Op-amp signal differentiator producing an incorrect output
I am currently working on creating a circuit that differentiates an incoming signal and outputs the result. I am using the circuit shown below for use as a low-noise counterpart with the same values ...
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Can this produce the said DC output of 33V?
I want to make a voltage regulator that can achieve 1.25-30V using LM317T along with a potentiometer. I'm researching it but can't find something related to using 24-0-24 being a 30V DC output. I need ...
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Sweep Generator Design [duplicate]
How do I design a wideband (>100 MHz) sweep frequency generator in UHF frequency range? I'm working on PLL frequency synthesizer incorporating a VCO, programmable divider, PFD and loop filter. I've ...
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How to design a 5th-order passive RC low-pass filter (500 kHz cutoff) in LTspice?
I am trying to simulate a 5th-order passive RC low-pass filter in LTspice.
My requirements:
Cutoff frequency: 500 kHz
Input frequency range: 30 kHz – 500 kHz
Signal amplitude: 1.5 V p-p
Only R and C ...
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MIL-STD-1275 Protection Method
I have a few questions about MIL-STD-1275 ("Characteristics of 28 Volt DC Input Power to Utilization Equipment in Military Vehicles").
Wouldn’t the combination of a TVS diode at the input ...
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Describing an audio processing circuit fault [closed]
How could I describe an audio processing circuit fault to a circuit designer where the following symptoms occur:
After a period of silence in the recording, the first segment of audio is missing/...
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PCB check: individually addressable LED strobe
I’m working on a circuit board for amber strobe units to be used in a car. Each board will feature eight individually addressable LEDs, controlled by an ATtiny microcontroller. In certain ...
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Are flyback transformers for voltage step down on a datalogger viable? Am I missing something?
I'm thinking thorough how I can build a pretty low end logger to read voltage and amperage as part of electrical troubleshooting on some CNC machines. I've managed to knock together a amperage logger ...
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4-layer PCB design review (revised board v1.0.4)
I have made alot of progress updates on my flight computer since I last made a post. I have a few questions now after completing my most recent version of the board, but first I will share with you ...
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DAC Schematic Overview
I was wanting a schematic review of my DAC-AMP using the XMOS-XU316 over I2S with a ES9039Q2M. Any input would be appreciated.
The specs of the DAC are:
32 bit
768kHz Sample rate
Here is the full ...
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How to modify a 4-bit D-Flip-Flop counter to count only 0–9? (Synchronic)?
I’m a computer science student currently building a 4-bit D-Flip-Flop counter.
With the basic structure, the counter normally counts from 0 to 15 (a full 4-bit cycle).
However, for my lab tomorrow I ...
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