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# Specific Current

223 Threads found on edaboard.com: Specific Current

## Calculating current in pulsed/square wave DC circuits

I will be more specific. It concerns the following schematic. I want to know, at least approximately, if the peak current flowing through C6 and the UCC373 chips. Because, for convenience reasons, I am using a single UCC27425 that has both non-inverting and inverting on the once chip. However these have a maximum current rating of 4.5A (...)

## Ground current through scope - USB connection

It is easy to know the amount of consumed current on each USB port of PC, at least on Windows. If I remember correctly, it is 500mA and once you reach this, a protection scheme turns off the output of the chipset for that specific slot and you can restore its working just with a hardware restart. Perhaps you are draining something too close from th

## Current-mode, current injection, lower impedance

You need to be more specific about the application. What do you mean by impedance and impedance to what and what are the voltage and currents in question? Are you talking about a controllable termination in a high speed bus, variable resistance for voltage controlled gain, or a variable high power load? Any of those things fit the description of

## LC circuit polarity change

I didn't realize there was difference between voltage and current polarity. I guess in this situation I'm talking about a polarity change that would effect how the diode would conduct.Would it conduct until the polarity swap occurred and then stop conducting when field collapsed . If you need more specific details let me know.

## Very Low Differential voltage amplification

No real idea for the moment about the voltage or current noise. Perhaps you should review the transistor data of your design kit. You can calculate expectable voltage and current noise for specific transistor size and drain current.

## Zener problem in motion detection circuit

The zener at the right circle is using to switch on the triac on a specific voltage level, according to the voltage drop on the 1k resistor which is in series with the scr. Of course this is happens when the load is high and using the triac as a protection for the current through the scr. The second zener, I am not sure for its purpose. Maybe, whe

## Stable bjt voltage drop

Any silicon semiconductor junction forward voltage has a temperature coefficient of about -2 mV/K. Asking for a more stable voltage drop is simply ignoring laws of physics. It makes sense to ask for devices with less type variation of forward voltage, specific leakage or current gain characteristics. But forward voltage temperature coefficient

## MNA-MAT : An easy-to-use MATLAB tool for SPICE netlist simulation

MNA-MAT, a MATLAB based analog circuit simulation tool, uses Modified Nodal Analysis to reduce a SPICE netlist to a system of equations which yield voltage at and current through specific points in the network. Monte Carlo analysis adds further functionality by evaluating possible uncertainties in real-world working conditions. The tool,

## [ARDUINO] optocoupler isolation

Unfortunately your question is impossible to answer, as it is presented. You see, an optocoupler is a component, which usually requires some more circuitry around to do anything specific. Therefore, would you please tell a bit more what you want to achieve? Analog or digital interface? detecting current or voltage or having an isolated input or o

I am working on a project where I need to measure the current drawn by multiple loads from a single power supply using a 8-bit PIC micro-controller. Also, when an overload condition is detected in any of the loads, I need to cut it off using a MOSFET. Here, each port is limited to a specific current and the sum of all the port (...)

## Capacitor Discharge Time to Specific Voltage

I would like to hold the logic level on pin 'D' of a D-type Latch high for 100 ns after the pulse driving it has gone to zero. The pulse will be from a NOT gate, 3 V and will be high for 0.5 ms (min). I was thinking of using a series R and C to ground to hold it above the logic threshold of 2 V for 100 ns. I know that \tau = RC. How

## How to detect current in the range of picoamperes with the use of a JFET 2n3819?

Where is the given setup? What is the specific low current sensor?

## Interfacing a very big matrix keyboard

I have not done this specific project, but I think the idea is to set 8 'row' pins high on your PIC, and set 8 'column' pins low. Scan all pins rapidly. You are looking for current leaving a 'row' pin, and entering a 'column' pin. (In itself this is risky, and you need to ensure what are safe connections regarding amount of current, what (...)

## MOS intrinsic gain, EE240, test circuit MOSFET with opamp and current source

I don't see what makes gm respectively ro fall with Vds above 1.2V, except for specific transistor properties or hidden circuit features,

## Amplifying a specific range of current

Hi, My recommendation: Transform the current into voltage. Limit the value to your desired range Then use an ADC to convert it to digital. Now you may use software to decide what values are valid and what values are not. And you may process the valid data as you like. I think it's easier to "adjust" software than to adjust hardware amp

## University campus navigation for blind people

The current technology available do not provide sufficient resolution for that application. Considering that this is intended to use within a specific place, instead of using an OEM-based GPS, you could think about making your own positioning system.

## current distribution and radiation relationship

hi all how can we predict the radiation pattern with a given current distribution and how to make the antenna to radiate in a specific frequency by changing the current distribution can anybody explain while putting example of UWB antenna regards kartik - - - Updated - - - kindly reply soon

## Power sequence cyclone v

There are two points about your question. - Altera "hot-socketing-feature" allows to power-up supply rails in any sequence. - Altera suggests a specific sequence (1.1V core voltage before 2.5 and 3V) for minimal current transients. Otherwise your power supply must be prepared for larger inrush currents. Review Cyclone V handbook chapter (...)

## current vs voltage mode

no circuits carry the entire functional burden by the exclusive use of either currents or voltages, and very few fully exploit the specific, but narrow, benefits of CM concepts Enlightening, thanks for hinting to the Gilbert paper.

## Motor over current protection handling in microcontroller

Considering that you are already measuring instantaneous current, why not think about implement some kind of PID control ? Although C_mitra suggestion is nicely easy to code and results could be satisfactory, it's based on a specific threshold value.