circuit design

I’m designing a circuit to switch a section of a 24 V CCT LED strip. I can’t add additional control lines, and the strip can’t be split at the dimmer, so I need an in-line circuit that can decode a command to toggle a switch. This board will sit between the two strip segments. The strip has a...

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. I want the headphone output to be able to drive both low and high impedance headphones...

Hello everyone, I am currently working on a piezo driver designed for a 2.5nF load with a maximum current ranging between 50 to 100mA with a frequency of 128kHz. Since the load requires a sine wave for operation, I have created a simulation in LTspice using the LTC7060 IC. However, I am facing...

I have designed a PCB for a small battery powered hand-held gaming device that utilises the ESP32-S3. I used the ESP32-S3 Zero dev board as a reference and closely followed the recommended layout from the chip’s datasheet. The PCB was manufactured by JLCPCB however it is not able to connect to a...

Hello, I am new here, i want another comment if the schematic design i made is appropriate to what i want and needed advice or confirmation about it.

Hello everyone, I'm currently working on a project that involves designing a DC-DC buck converter to step down a 12V battery input to a stable 5V output, capable of delivering up to 2A for a portable device. While I have a basic understanding of power electronics, this is my first attempt at...

Hello, I'm trying to design a power system for a desk robot. The idea is that it's kind of like a small roomba that organizes your desk before returning to a charging station. My battery (placed in the robot) is the Ovonic 1550mAh 100C 14.8V Lipo. I have 3 loads to power: 5-7V VIN to ESP32...

Hello all, As the title implies, I’m currently designing / drawing a 4 bit counter composed of 4 D flip flops. I’m unfamiliar with circuits and was wondering how I would go about creating a reset button that would set the counter to its initial state in the sequence, which isn’t 0. Currently, my...

I'm working on a clap-on clap-off circuit to control two devices: a light and a fan. The goal is to have the following functionality: Single Clap: The light turns on with the first clap. The light turns off with the second clap. Double Clap: The fan turns on with the first double clap. The fan...

Can someone guide me through the adaptation of this conceptual model circuit into a real circuit adapted into PSIM for simulation:

Hi everyone, I am currently working a simple 8-bit hobby processor design. I am still in the early phases of designing the processor logic and haven't started on the actual circuit. Premise: my processor's control unit design was inspired by what Ben Eater has done in his project: basically...

So I've been recently trying to build a simple class D amplifier, I've seen through the block diagrams and design considerations online, but recently came across an Amplifier design which doesn't seems to fit the majority of the circuits online. So in the input stage we use a comparator to...

My project purpose is that when you hold hands with a friend the passage of electric current through a circuit is enough to turn a buzzer or the ISD1820 voice recorder speaker. My first idea it to use the circuit below as reference, but I have no idea which transistor I should use to have...

Hello Guys, Im currently in the process of designing and then building a robotic arm. And now im designing the electronics for it. They should be pretty simple "i hope". I've attached a picture of the circuit that I am currently designing on, and maybe you notice im not an electrical engineer...

Hi there, I am trying to create a circuit to measure humidity in the air. When I try to interpret the values obtained, they do not correspond to the table of values that the manufacturer of the HR202L provides. Could someone explain to me the possible errors in my circuit or my calculations...

Overview - I would like to install an Apple AirTag in a vehicle and have it gets its primary power from the vehicle's 12V battery. In the event that the 12V Battery is disconnected, I would like for a backup 3V Battery to continue to provide the power required to run the AirTag. Approach -...

This is an 8 function led strip light adapter and i want yhe circuit diagram of it can some one please help me out.

I have an adjustable power supply of 150W.I want to power two peltier modules of 12v/6amps and 12v/3amps and two fans each of 12v/0.72amps. Please suggest me an efficient way to power all devices.

Hello, I wanted to reach out to this wonderful community to seek some guidance regarding an issue I'm facing with the DS26LV32 and DS26LV31 ICs on my board. I believe your collective expertise and experience can help shed some light on this problem. In my current project, I am utilizing the...

Hi I'm having some issues designing a circuit for a project I'm working on. It's a 48v Ebike battery but im including USB C charging so i can charge my phone on the go and i was thinking of including the option of charging the battery pack via USB C in case i dont have the normal charger for...