All Questions

https://www.st.com/resource/en/datasheet/m48z02.pdf Can this SRAM explode if it is connected wrong? It has a button cell battery built in, and also power pins... So if for example these power pins ...

I was looking on the schematics for the DIY HS102 oscilloscope by Martin Loren (http://hscope.martinloren.com/HS102-oscilloscope.html) But I'm a bit confused about the role of the ASM1117 (LDO ...

Is it possible to send debugging messages from MCU to PC over SWD via GDB without interrupting the running code (ie. without using breakpoints), like we could do via UART of MCU by sacrificing 2 UART ...

I am using an ATMEGA328p to measure the frequency of a 50% duty cycle square wave in the range 2khz to 15khz. The square wave is being generated by a good quality Function Generator and I can see on ...

here is the battery, as its visible there is an internal circuit (protector) consist of two different ic's. i dont know any thing about this internal protector unfortunately but i read it some where ...

My inverter/ups power backup is getting overloaded and tripped even when the power supply is through mains. Ideas

I discover a problem on my design, with a STM32F042K6 MCU and a MCP2561 Can Transceiver. I can send some frames on the CAN Bus but i can't receive any frames. When i put my scope probe on the CAN Rx ...

I'm trying to connect A4 to pin 5 in 6050 in the picture. When I click those with the net tool, it also connects A2, which is not what I need. If I use the delete tool and erase the junction, they ...

How does this patented ripple-borrow binary subtraction circuit eliminate the need for doing two-complement conversion on the input, thus saves on hardware circuit computation area and time ?

If the energy is dissipated more quickly in overdamped circuit then why it does have longest settling time?

I built a simple circuit with 2 lamps and a slide switch powered by two 1.5v batteries. When the slide switch is off, the voltage of the circuit measured by a multimeter is 3.15v: However, when the ...

Can anybody please explain why the voltage source has been short circuited here after the switch has been closed at t=0. Thank You.

We know that: A voltage divider is a simple circuit which turns a large voltage into a smaller one. Using just two series resistors and an input voltage, we can create an output voltage that is a ...

Whenever I have "input" which it could be HIGH AND LOW for example the input VIN to the CMOS INVERTER then we assume that the iput is 0 or vdd ! what's confusing me who said that high can't be VDD-VT ?...

Iam ON/OFF the 3HP Motor Starter(Submersible) using 12VDC Relay(damper diode is connected)(Relay should be on for 3-6 seconds for Turn-ON the Motor then relay should be OFF) with MCU and MOSFET, it ...

I've seen devices that detect a human chain. For example, they detect when 1 or more people (possibly several) hold hands to close a circuit between two distant metal objects. I've tried to find ...

Could anybody provide help in answering this question? I'm pretty sure I should use a Kmap to analyze it but not sure how to do so.

I have a circuit like below. I wanted to know how these resistance values were calculated. I wanted to use 12V/24V in place of 9V. Let me know selection of opto-coupler and resistance value.

I have inherited firmware code for an MSP430F149 chip. Included in the source code is a "fractional multiply" function written in Assembly. This function accepts two signed integers. ...

This is a newbie question on MOSFET structure. If I need a heat sink to be attached to MOSFET, it should be closer to the source of heat. Here channel is the source of heat. Hence heat sink should be ...

Consider we have created a QPSK signal with a carrier frequency 100kHz. Before applying matched filter or demodulation we need to take sampls from the received signal. So what is the minimum sampling ...

I’m designing a simple dc motor speed controller that only needs to be driven in one direction and I’m wondering if an H-bridge configuration would have any advantages over a single or dual MOSFET ...

I have a normal old intercom system in my appartement building pick up the horn, can talk 2 ways at the same time. Button to push for the door to open. Now what i want to do is whenever someone rings ...

If you continuously run your graphics card at between 80°C and 90°C (176°F and 194°F) is it actually bad for the graphics card? I.e. does it reduce the life of the card? Can this be proven? Or is it ...

So i am fairly new to industrial automation however i have noticed a trend in quite a few schematics which have more than one 3 phase motor involved and the power distribution block is always there. ...

In setup calculation, the launch flop is triggered by 1st edge and capture flop is triggered by next edge. And in calculation we take jitter into account only for the clock path of capture flop. There ...

I am using STM32L476. I want to enter the Stop 2 mode and use LPTIM1 as a Timeout wakeup unit. The code is written such that the LPTIM1 wakes up the MCU from Stop 2 mode after every second. The ...

In power electronics supplies when a common mode choke is used at the supply or before a converter (say a synchronous rectifier) , does it mean the choke is used to avoid common noise coming from the ...

I saw wire conduit being installed in a building, and it was metallic. Wouldn't you want to use an insulating material instead? What if the live wire sheath started to fail? It would short to the ...

so i have a 30A disconnect available for use at a customer site for running 2 5HP motors ( at 480V) the only question i have though is if the line is sized for a 10HP motor would both the 5HP motors ...

I need to go through the 4 cases where v1 and v2 are either 0V or 5V, and then use that to show the voltage value of the output, Vo is either low or high. However, I think I'm hitting a contradiction ...

I am using PMM240 to manage RRC2054-2 battery, it is based on SMbus, I have questions about how to make sure the command is complete, I noticed there are library functions ...

I've just started learning this material not too long ago and need some help. I'm trying to communicate with SPI from an AD7124-4 ADC IC to an ESP32. The first problem I'm having is I'm getting a ...

Is there any site where i can order a custom system on chip (with compound) project manufacturing. like this one i want to design a circuit like in electronic wrist watches, but pcbway or ...

I'm trying to learn about DMA and its use in the STM32L4S9VI platform. One thing I'm confused about is what binds the DMA transfer to any one specific interrupt? In the below example, I'm curious ...

For my student project, I'm going to be using a 4-20 mA and +/- 10 V output pressure transducers and the output of these sensors will be going into a DAQ system that we purchased from DEWESOFT. Along ...

This potentiometer reads between 0 and 115K as I rotate the shaft. The wedged part of the shaft is 10mm. Can anyone identify the part number?

I'm using Atmel's ATMEGA256RFR2 (link) for Zigbee (802.15.4). However I could not reach more than a few meters of range between my nodes. Here is the antenna design layout and schematics I'm using, ...

I was hoping I could get help with a design I have breadboarded/diagrammed with regards to a low level signal still present when I have my volume pot turned all the way down. When I turn my volume ...

first of all, sorry about to be asking that silly and newby question, I know, it is really lame. Is there a simple device, that I can build simply, or bought, that can switch between two lights ? I ...

Referring to the schematic below, is it best practice to have the 5 V supply on the right powering the MC (arduino-esque microcontroller) share a common ground with the 24 V supply ? The 24 V supply ...

Hello I have a EE go pro watch but not the pogo 4 pin cable to charge it can one be made as EE don't have replacements that ks

I have got an old hard disk drive Seagate ST9300AG (please see the attached photo). The hdd is very likely functional and I would need to read the contained data. Does anybody know whether some ...

I found a couple of old bridge rectifiers. After reading some docs and tutorials about reverse polarity protection decided to give them a try. The problem is nobody offered a solution against the ...

Multiple examples of current limiting with TL494/TL594 suggest to use current sensing resistor between load(-) and GND. But I want load to be grounded. Can current sense resistor be placed above load(+...

i have a motor driver, which has a control voltage (5V). I would like to ask, what is this voltage for and can i connect to it a potentiometer? Thank you in advance!

I found the below photo in my grandfather's effects of what I believe to be an RF GaAs FET. He was working in a GaAs FET lab at the time this photo was dated (1975). It was labeled on the back "300μm ...

I've pretty much put my question above, It's just that I can get a 4 g dongle that offers 150 Mbps download for 35 quid and it's unlocked so I could put my EE chip out of my mifi unit in it and then ...

A 1.5kohm resistor has a power rating of 3.75W. if it is connected to a 24V power supply, will it be damaged? why?

I can't find any tutorial on how to write verilog on MKR Vidor 4000. If you have done it what software do you use to synthesize, simulate and create a bit stream to the board ? Thanks,