All Questions

The batteries are bad. While trying to figure out how to replace them I have come across these numbers Mu-1slda 12v27ah C/5 12V32Ah C/20 Does the new batteries have to have the exact numbers or ...

There is a 16-bit data acquisition board with +/-10V range which multiplexes analog inputs and buffers the data to the PC. Specifications are given here (DAS6036 is the model in question). Now I need ...

So I'm baffled by this... I'm working with an ARMv7-M microcontroller and GCC compiler, debugging some code where I'm trying to enable an interrupt. I'm trying to do the following: enable an ...

I need to measure the voltage across the R2 (VA - VB) but it is above the common mode voltage range of op-amp. simulate this circuit – Schematic created using CircuitLab How could I do that? ...

The following code is an attempt to implement the responses given in this post, a program that takes in its entry a real number coded in 2's complement in a 16 bit std logic vector (the integer part ...

I'm confused about the via placement in power traces either to change layers as part of routing the main supply or to get to component pins from a layer different to where the power trace is located, ...

I'm building a MIDI merger, based on a Attiny (either 84 or 85). How to read multiple serial ports at the same time (for example 8 RX input)? I can't find the blog article anymore, but I think I did ...

What is the impedance of the following circuit if the switch operates at the same frequency with the input voltage. Since the switch introduces non-linearity to the circuit, how can I calculate the ...

I'm somewhat familiar with Tesla's electric vehicles and that they use AC motors, but I'm completely unfamiliar with EVs that use DC motors. I know that in a Tesla an inverter is required to convert ...

Is it possible to directly connect PCM1789 DAC to TPA6138A2 headphone amplifier? According to datasheet PCM1789 output are differential outputs and the input of TPA6138A2 is also differential inputs. ...

The other day one of the phases of our power faulted and the fuse tripped on the power company side. I measured the voltage at 60-65V. Lights were flickering, and some devices kept running (like a ...

I tried so hard to find how can I order this single motor protector from Electrica: T150 but failed to get it on neither fairnel nor on rs-online. as I am repairing my fridge, how do I make sure that ...

I would like to know the altera quartus primitive equivalent to the FDCE flip flop on Xilinx ISE. I think that DFFE primitive might work however I am not sure about the CE and CLR pins equivalency. ...

I just bought a cheap USB 5V to 12V step up converter: Surprisingly, it works very well. There is few place for electronic components (maybe in the USB connector?), how can we do a 5V to 12V ...

We need to carry high currents on a PCB (~30Amps sustained), so we are likely to order our PCBs with high copper thickness. So far we've only used 35 microns (1 oz) in our designs, so 'high thickness' ...

I am trying to design a simple processor (in VHDL) that takes in its input a real number coded in the fixed point representation in 2's complement (10 bits for the integer part, and 6 for the ...

In the figure above, LED A is a regular 5mm LED and the visual identification of its terminals polarity is well known. As you can see, on LED B the anode is identified by the longer leg, but the ...

When I connect a 36V Li-Ion battery source to a cheap eBay DC motor controller, there's a significant spark on the wire, regardless of connected components. Should I: 1) Add capacitors to the input ...

I have a little electric motor that im trying to use to spin a turn dial. I tryed useing a 5volt 1.55 amp power supply but it just dont have enought power to spin it. I can hook it up to my portable ...

I'v heard that a delta/delta or Wye/Wye transformers do not make any phase shift. In delta/wye or wye/delta transformers, There is a 30 degrees phase shift between the primary and secondary coils. So, ...

I created a state Transition diagram for the mealy machine below but I wasn't sure if this is correct. The part that confused me was that s1 has no edges.

I have some errors during debugging I2C chip. I took an oscilloscope and found some strange artifacts on the log: Maybe somebody has a suggestion about such questions? 1. What are these strange ...

The product page of the BMI088 IMU makes the very impressive claim The automotive-proven gyroscope of the BMI088 has an unmatched bias stability of less than 2°/h However, I can't find this claim ...

For an avionics application I need to make a keypanel which has NVG compatible LED lights behind its keys. I am trying to understand how does the NVG compatibility (Night vision Goggles) relates to ...

I have a motion profile generator which calculates a position 1000/sec. During the decelerating portion of the move, the following calculation is used: ...

I am novice in PCB component placement and layout. I have just started my career in Hardware design. We have designed a schematic for Data Acquisition System. In our design, we are using three RF ...

I came across the following appnote(slyt647) which analyses the two op-amp instrumentation amplifier topology. The gain was found by finding individual gains for each op-amp and adding them in ...

I would like to ask some advice for my layout design. I am working on a layout design. The designed PCB will be a Beaglebone Black (BBB) extension card. It is a four layer PCB with the following ...

I am software engineer by trade and a novice in this field, please point out any mistakes in my assumptions and vocabulary regarding this topic. I am designing a lighting plan based around commonly ...

Why do we need to use transistors when building an OR gate? Wouldn't we be able to achieve the same result without transistors at all, just by joining the two ...

I'm new in electronics. I'm trying to make a BCD calculator, but I got stuck in BCD subtraction. I got stuck in: how can I connect multiple bcd subtrator units? I'm trying to make a 3 digit calculator,...

I have a module in verilog called jtag_sw that expects a 4 bit input. It is a mux. A smaller verison of the code is below as an example. Only 3 signals [0:3] of <...

What I have achieved so far: Referring https://www.instructables.com/id/BUILD-A-NOCTURNAL-SOLAR-LIGHT-BULB/ , I have successfully built the Solar Garden Light circuit to glow 5mm led using QX5252F. I ...

I am currently in the process of making an ultra-low power pH captor and I'm running in a problem. The voltage I get from my pH probe does not fallow the Nernst equation (which states that the voltage ...

Let's say I am given the following circuit: along with $$dV_p/dT=0.139mV/K$$: Defining V1 the voltage above Diode D1 and V2 the voltage above diode D2 , we use the expression for the current of a ...

I used TTP223 IC which is operated at 5V , i use touch ic output(When High)to turn on the led and (When low) to dim the led. LED is operated by the External 5V and used only touch ic output as signal ,...

I have a device that's being battery powered and I would like to measure the power consumption over a longer period of time (~24Hours). I want to read both the voltage of my battery and the current ...

Sorry for the ugly drawing. The ac source(piezoelectric material under vibration) generate ac current and then rectified by the bridge rectifier. The rectified current will be stored in the capacitor. ...

Please see attached slide for a Routh-Array. I'm struggling to see why the encircled element is 4. Rather, according to my calculations it is 0 as the determinant will give zero. Unless I'm doing ...

I am needing advice about which freestanding bench tester to get for jitter measurement of a 50Hz square wave. I prefer a freestanding piece of bench equipment that does not require a sound card or ...

I am getting HS-1100WP Servo. I want to know if I hook them up directly to 12V and turn off the receiver will it drain my 12V battery? Thanks in advance.

Can anybody explain why Carry-Skip adder has the same critical path as regular Carry-Ripple adder. My textbook says that critical path occurs when carry is generated in LSB and then propagating it ...

I can't understand the circled symbol and didn't manage to google it. It looks like a variable resistance and a capacitor. What does it mean?

This question and the answers hits close to the topic. One picture shows it as SOD. Silicon-oxide dielectric? I'm aware that around/within the transistor, silicon oxide is grown for insulation where ...

Could someone help me in solving this I am having problem in solving it If I want to convert for example from ohms to k What should I do

I am building a circuit for sensing photocurrent from a photodiode. The diodes are manufactured with selection transistors to form an active matrix and below is a model of a single pixel consisting of ...

I moved into a flat which has the following electrical setup in the kitchen: Regular looking 4 socket surge protector Combi boiler plugged into surge protector Washing machine plugged into surge ...

I am working as a night delivery driver and when its dark and/or rainy it's almost impossible to read many of the house numbers/names I am looking for. I've heard of Maglite and in fact my friend has ...

Doing some reverse engineering to a PCB, I drew this part of the circuit. Looking into the datasheets, I found out the comparator (LMC6772) is able to drive the SCR (S6S2) by itself. But the designer ...

can someone tell me why it doesn't say standby on this to test voltages